Wednesday, December 22, 2010
Approached scheme is simple, few external electronic components, is suitable for construction of car audio. Output power is 2 - 4 Ohm to 2 x 30 W (maximum 2 x 40 W) on two channels BTL (SETREO)
Pin Arrangement and functziile met. Circuit pins are placed on two rows. Bridge amplifier working so not linked to car speakers table! The integrated circuit can charge up to 8.4 A in pregnancy. Does the scurcircuit protectzie blocking the exit at high temperature (above 150 degrees Celsius). MUTE and STANDBY functzii has enabled the pin 11.
40W Stereo BTL Car Amplifier Circuit using IC TDA8560Q
IC TDA8560Q Pin OutThis is a circuit of 2 x 22 watt BTL amplifier using IC TA8210AH. It is not only an auto amplifier, ideal for a low-frequency auditory approach those hi-fi, with a very good linear feature. Can be fueled by a 12 volt car battery but shi from a 12 volt charger. The chip incorporates four bridge amplifiers available in two by two in order to ensure the output 22 watts per channel on 4 ohms.
Note:
- IC TA8210AH must be connected to a heat sink. A computer cabinet fan can also be used in addition.
- The circuit roughly draws 6A current at 18 V at full volume.So the power supply must be any thing more than 6A.
- Peak supply voltage (0.2s): 50 V
- supply voltage VCC (DC): 25 V
- Operating supply voltage VCC (opr): 18 V
- Output current (peak): 9 A
- Power dissipation PD: 50 W
- Operating temperature: 30~85 °C
- Storage temperature: 55~150 °C
C1,C2 : 4,7uF/35V
C3,C7 : 47uF/35V
C4 : 220uF/35
C5,C6 : 1nF
C8,C10,C11,C12 : 0,1uF/35V
C9 : 2200uf/35V
IC : TA8210AH/AL
HL1 : LED
R1 : 2 k
R2,R2,R3,R4,R5 : 2,2 Ohm
Tuesday, December 21, 2010
The following circuit shows about 35W quadruple amplifier and 2 x 25W bridge amplifier based on the TDA7375 IC, this circuit requests the minimum of external components. Although the first conception went to car applications , to give him/it in a great variety of applications of low potency. That integrated circuit is ideal in the situation in that is wanted a reasonable potency and with a Power tension relatively low for your operation. That circuit drawn below it uses the basic configuration of quadruple amplifier, but using a configuration in bridge, it can be obtained about 4 times the maximum potency. In that configuration of quadruple amplifier it can be used as amplifier end of systems surround
TDA7375 2 x 25W Bridge Amplifier Circuit
TDA7375 35W quadruple Audio Amplifier CircuitIC TDA7375 is a new technology class AB car amplifier able to work either in dual bridge or quad single ended configuration. The exclusive fully complementary structure of the output stage and the internally fixed gain guaranteesthe highest possible power performances with extremely reduced component count. The on-board clip detector simplifies gain compression operation. The fault diagnostics makes it possible to detect mistakes during car radio set assembly and wiring in the car.
Absolute Maximum Ratings Of IC TDA7375
- Operating Supply Voltage: 18 V
- DC Supply Voltage: 28 V
- Peak Supply Voltage (for t = 50ms): 50 V
- Output Peak Current (not repetitive t = 100ms): 4.5 A
- Output Peak Current (repetitive f > 10Hz): 3.5 A
- Power Dissipation (Tcase= 85°C): 36 W
- Storage and Junction Temperature : -40 to 150 °C
Friday, December 10, 2010
The following a 4 x 35 watts channels/quad audio power amplifier circuit based IC TDA7383. The amplifier circuit is designed specifically suitable for car audio system applications. With a fairly large output power per channel, low distortion and low output noise features. Heatsink should be installed on the power IC to avoid excessive heat. There are very simple and easy to build cos only a few additional components outside the IC power.
Rangkaian 4 x 35W Car Audio Amplifier TDA7383
TDA7383 PinningIC TDA7383 is a new technology class AB Audio Power Amplifier in Flexiwatt 25 package designed for high end car radio applications. Thanks to the fully complementary PNP/NPN output configuration the TDA7383 allows a rail to rail output voltage swing with no need of bootstrap capacitors. The extremely reduced components count allows very compact sets. The on-board clipping detector simplifies gain compression operations. The fault diagnostics makes it possible to detect mistakes during Car- Radio assembly and wiring in the car.
Absolute Maximum Ratings of IC TDA7383
Operating Supply Voltage : 18 V
DC Supply Voltage : 28 V
Peak Supply Voltage (t = 50ms) : 50 V
Output Peak Current Repetitive (Duty Cycle 10% at f = 10Hz): 4.5 A
Output Peak Current Non Repetitive (t = 100µs) : 5.5 A
Power dissipation, (Tcase = 70°C) : 80 W
Junction Temperature : 150 °C
Storage Temperature : – 55 to 150 °C
This is a circuit of 60 watt HiFi audio amplifier system using IC TDA2052 . The circuit is class AB amplifier which operates split power supply type with a maximum voltage of 25V and generates 60 Watt power output. Heatsink should be installed on the power IC to avoid excessive heat.
Rangkaian 60W HiFi Power Amplifier TDA2052
TDA2052 IC Pinning
The TDA2052 is a monolithic integrated circuit in Heptawatt package, intended for use as audio class AB amplifier in TV or Hi-Fi field application. Thanks to the wide voltage range and to the high out current capability it’s able to supply the highest power into both 4/8 loads even in presence of poor supply regulation. The built in Muting/Stand-by function simplifies the remote operations avoiding also switching on-off noises
Absolute Maximum Ratings of IC TDA2052
DC Supply Voltage : ±25 V
Output Peak Current (internally limited) : 6 A
Power Dissipation : 70°C 30W
Operating Temperature Range : +70 °C
Storage and Junction Temperature : -40 to +150 °C
This is a 4 x25 Watt audio amplifier circuit using IC TDA7381. The amplifier circuit require few external components and is very easy to build. This amplifier is designed for car audio system, but you may use the circuit for another application such as mp3 player, computer etc
Rangkaian 4 x 25 W Car audio AmplifierUsing TDA7381
TDA7381 IC PinningNote:
- The TDA7295 IC must be fitted with adequately sized heat sinks.
- Use 12V DC for powering the circuit.
- Connect a 50K POT in series with the input as volume control if you need. Not shown in circuit diagram.
The TDA7381 is a class AB audio power amplifier in Flexiwatt25 package designed for car radio applications. You you can also use this circuit for other purposes. Thanks to the fully complementary PNP/NPN output configuration the TDA7381 allows a rail to rail output voltage swing with no need of bootstrap capacitors.
The extremely reduced components count allows very compact sets. The on-board clipping detector simplifies gain compression operations. The fault diagnostics makes it possible to detect mistakes during Car- Radio assembly and wiring in the car.
Absolute maximum ratings of IC TDA7295 IC
- Operating supply voltage = 18 V
- DC supply voltage = 28 V
- Peak supply voltage (t = 50 ms) = 50 V
- Output peak current Repetitive (duty cycle 10 % at f = 10 Hz) = 3 A
- Output peak current Non repetitive (t = 100 μs) = 4A
- Power dissipation, (Tcase = 70 °C) = 80 W
- Junction temperature = 150 °C
- Storage temperature = -40 to 150 °C
The following a circuit of 80W audio amplifier is using by IC TDA7295. The circuit very simple and will be easy to build. TDA7295 has many features to support your audio system, the most important is that the IC has wide voltage range, very low distortion and very low noise feature.
Rangkaian Audio Amplifier TDA7295 - 80W
TDA7295 IC Pinning- The TDA7295 IC must be fitted with adequately sized heat sinks.
- Power supply voltage should not exceed 40V
- Connect a 50K POT in series with the input as volume control if you need. Not shown in circuit diagram.
The TDA7295 is a monolithic integrated circuit in Multiwatt 15 package, intended for use as audio class AB amplifier in Hi-Fi field applications (Home Stereo, self powered loudspeakers, Topclass TV). Thanks to the wide voltage range and to the high out current capability it is able to supply the highest power into both 4Ω and 8Ω loads even in presence of poor supply regulation, with high Supply Voltage Rejection. The built in muting function with turn on delay simplifies the remote operation avoiding switching on-off noises.
This is a 22 Watt car stereo audio amplifier. The circuit is based by a single IC TDA1553 with some external components, this IC will handle your stereo car audio system. The IC TDA1553CQ contains 2×22 W amplifiers with differential input stages and can be used for bridge applications.. The gain of each amplifier is fixed at 26 dB. The device is primarily developed for car radio applications.
DA1553CQ IC PinningNote:
When a short-circuit to ground occurs, which forces a DC voltage across the loudspeaker of >= V, a built-in protection circuit becomes active and limits the DC voltage across the loudspeaker to <= V. Pin 12 detects the status of the protection circuit (e.g. for diagnostic purposes).
If any output is short-circuited to ground during the standby mode, it becomes impossible to switch the circuit to the mute or operating condition. In this event the supply current will be limited to a few milliamps.
- The DA1553CQ IC must be fitted with adequately sized heat sinks.
- Connect a 10K POT in series with the input as volume control if you need. Not shown in circuit diagram.
- Use 12V DC for powering the circuit.
When a short-circuit to ground occurs, which forces a DC voltage across the loudspeaker of >= V, a built-in protection circuit becomes active and limits the DC voltage across the loudspeaker to <= V. Pin 12 detects the status of the protection circuit (e.g. for diagnostic purposes).
If any output is short-circuited to ground during the standby mode, it becomes impossible to switch the circuit to the mute or operating condition. In this event the supply current will be limited to a few milliamps.
This is a 2 x 70W audio power amplifier circuit which built using single IC STA550. The amplifier circuit require few external components (most of them are resistors and capacitors) and is very easy to design The STA550 audio amplifier is capable to provide a maximum output power of 70 watts on two channels (70 + 70 watts).
STA550 - 2 x 70W Audio Amplifier Circuit
STA550 PinoutThis power amplifier circuit require a multi voltage power supply , because the amplifier require : +Vs Positive supply voltage referred to pin 13 (GND), Negative supply voltage referred to pin 13 (GND) -Vs, VCD+ Positive supply voltage tracking rail, VCD- Negative supply voltage tracking rail . The +Vs Positive supply voltage can be : +20 to +30 volts, -Vs Negative supply voltage : -10 to -22 volts , Positive supply voltage tracking rail VCD+ : +3 to 17 volts , Negative supply voltage tracking rail VCD- : -17 to -3 volts . VCD- must not be more negative than -Vs and VCD+ must not be more positive than +VS .
In this circuit diagram, R1/R3 (or R2/R4) ratio fix the gain of the preamplifier. If the input signal is very low, is possible to increase the gain fixing the product Vin*G = cost. In that case is possible to increase G decreasing R1,2 from 10KW until 2KW without relevant effetcs on the circuit behavior and remaining in the operating range Iin_max = Vin_max/R1(2) <1ma.>This is a 2 x 70W audio power amplifier circuit which built using single IC STA550.
The following a circuit of 4 watt audio amplifier. The amplifier is using on integrated audio amplifier chip, TDA1013B which is able to gained the audio power output up to 4W at 8 ohm loads. The wide supply voltage range makes this amplifier circuit ideal for applications in mains and battery-fed apparatus such as television receivers and record players.
Rangkaian Audio Amplifier 4W TDA1013B - The TDA1013B IC must be fitted with adequately sized heat sinks.
- Connect a 10K POT in series with the input as volume control if you need.Not shown in circuit diagram.
- Use 9-18V DC for powering the circuit.
- This amplifier circuit can be used in a variety of applications such as car audio systems, home theater systems, personal audio systems, public address systems etc.
The DC volume control stage has a logarithmic control characteristic with a range of more than 80 dB; control is by means of a DC voltage variable between 2 and 6.5 V. The audio amplifier has a well defined open loop gain and a fixed integrated closed loop. This device requires only a few external components and offers stability and performance.
Thursday, December 9, 2010
Rangkaian Amplifier TK4036II
This is a 50 Watt Audio power amplifier circuit based single IC STK4036II. Use heatsink to prevent overheating on the IC. The amplifier circuit will give you good quality of sound unexpensive and have low price. It is easy we make a power amplifier using only few external components. The STK4036II amplifier are will find in enough eponymous stereo amplifiers , but also in enough activety loudspeakers.
This is a 50 Watt Audio power amplifier circuit based single IC STK4036II. Use heatsink to prevent overheating on the IC. The amplifier circuit will give you good quality of sound unexpensive and have low price. It is easy we make a power amplifier using only few external components. The STK4036II amplifier are will find in enough eponymous stereo amplifiers , but also in enough activety loudspeakers.
Rangkaian STK4036II - 50W Stereo Power AmplifierSTK4036II Power Amplifier circuit features:
- Compact package for thin-type audio sets
- Member of pin-compatible series with outputs of 20 to 200W
- Easy heatsink design to disperse heat generated in thintype stereo sets
- Constant-current circuit to reduce supply switch-on and switch-off shock noise
- External supply switch-on and switch-off shock noise muting, load short-circuit protection, thermal shutdown and other circuits can be tailor-designed.
Here is a stereo preamplifier circuit with built in tone control facility. A very useful circuit using versatile tone control IC TDA 1524 from Phillips.
This circuit is designed as per the data sheet as an effective stereo-tone & volume control for car stereos , TV sets or any sort of stereo amplifier circuit you want.The circuit includes provisions like bass control, treble control , volume control with inbuilt contour or linear mode option (can be switched in betwwen) and balance. All these functions provided can be controlled by DC voltages or by linear potentiometers.
Note:
- R1 ,R2 ,R3 andR4 can be used for controlling volume, balance, treble and bass respectively.
- If SPDT switch S1 is in position 1 ,the circuit works in contour mode and in position 2 the circuit works in linear mode.
- If you are using a 15-20V supply, you can use that as your pre-amp supply as well. Make sure you test the voltage first in all cases
TDA1524 Tone Control Component:
R1,R2 : 220R Resistor
R3,R4 : 4K7 Resistor
R5 : 2K2 Resistor
R6 : 1K Resistor
C1,C2,C7,C8,C17 : 10 uF ecap
C3,C4 : 47 nF
C5,C6 : 15 nF
C9 : 220 nF poly
C10 : 100 uF 25V
C11,C12,C13,C14,C16 : 100 nF
C15 : 1000 uF 35V
C18,C19 : 10 nF
IC1 : TDA 1524A
IC2 : LM 7812
P1 : 50k linear switch pot
P2,P3,P4 : 50k linear pot
X1,X2,X3,X4 : RCA jack
D1 : Diode 1N4004
L1 : Red LED
Rangkaian 1W Amplifier TDA 7053
This is a 1 watt stereo audio amplifier circuit using IC TDA 7053 from Philips. It is particularly suited to battery operation, providing 1 watt per channel from only a 6V DC supply. It will operate best from 6 – 12 V DC and requires no heat-sink for normal use.
This is a 1 watt stereo audio amplifier circuit using IC TDA 7053 from Philips. It is particularly suited to battery operation, providing 1 watt per channel from only a 6V DC supply. It will operate best from 6 – 12 V DC and requires no heat-sink for normal use.
Rangkaian TDA 7053 Stereo Audio AmplifierThe TDA7053 Integrated Circuit does nearly all the work, so there are only a few external components. C1 and C2 provide power supply decoupling or filtering. R1 and R2 provide a DC ground reference for the input signals, and may be increased if your source requires a higher load impedance. Do not use more than 100k ohms.
Since the amplifier circuit in BTL configuration, the outputs are floating with respect to ground. Therefore NO output leads should be connected to ground. The Philips data sheet contains all the necessary information about the TDA7053.
Since the amplifier circuit in BTL configuration, the outputs are floating with respect to ground. Therefore NO output leads should be connected to ground. The Philips data sheet contains all the necessary information about the TDA7053.
For more details please download the datasheet at:
http://www.quasarelectronics.com/3107.htm
This is 2x1W mini audio amplifier circuit using IC KA2209. It will operate well from 3-12V DC and will work from a battery since the quiescent current drain is low. It requires no heat sink for normal use. The input and output are both ground referenced. Maximum output will be obtained with a 12V power supply and 8 ohm speaker, however it is particularly suitable for driving headphones from a supply as low as 3V
The mini amplifier circuit only a few external components, the IC contains most of the necessary circuitry. R1,R2 and R3,R4 are the feedback resistors. C1 provides power supply decoupling. C2 and C3 are the input coupling capacitors, which block any DC that might be present on the inputs. C4,C5 block DC in the feed back circuit from the inverting inputs, and C6,C7 are the output coupling capacitors. C8, R5 and C9,R6 act as zobel networks providing a high frequency load to maintain stability at frequencies where loud speaker inductive reactance may become excessive. The pot provides adjustable input level attenuation.
KA2209 - Audio Amplifier Circuit Component
C1,C2,C3 : 10 uF/25V ecap
C4,C5 : 100 uF/16V ecap
C6,C7 : 470 uF/16V ecap
C8,C9 : 100 nF poly
R1,R3 : 1k Resistor
R2,R4 : 100R Resistor
R5,R6 : 4R7ohm Resistor
Pot1 : 10k dual gang log pot
IC1 : KA2209 Integrated Circuit
Sunday, December 5, 2010
Using the LM1877 chip can be designed a very simple audio amplifier circuit for small audio applications like portable devices . This audio amplifier circuit capable of delivering 2 Watt per channel continuous into 8Ω loads.
Rangkaian Stereo Amplifier 2W (LM1877) The LM1877 is a monolithic dual power Amplifier designed to deliver 2W/channel continuous into 8 loads. The LM1877 is designed to operate with a low number of external components, and still provide flexibility for use in stereo phonographs, tape recorders and AM-FM stereo receivers, etc. Each power Amplifier is biased from a common internal Regulator to provide high power supply rejection, and output Q point centering. The LM1877 is internally compensated for all gains greater than 10.
LM1877 Chip Features
- 2W/channel
- −65 dB ripple rejection, output referred
- −65 dB channel separation, output referred
- Wide supply range, 6V–24V
- Very low cross-over distortion
- Low audio band noise
- AC short circuit protected
- Internal thermal shutdown
Stereo Audio Amplifier circuit using LM4752 capable of delivering 11W per channel of continuous average output power to a 4 load, or 7W per channel into 8 using a single 24V supply
Rangkaian Stereo Amplifier 11W (LM4752)The LM4752 is specifically designed for single supply operation and a low external component count. The gain and bias resistors are integrated on chip, resulting in a 11W stereo Amplifier in a compact 7 pin TO220 package. High output power levels at both 20V and 24V supplies and low external component count offer high value for compact stereo and TV applications. A simple mute function CAN be implemented with the addition of a few external components.
LM4752 Chip Features
- Drives 4Ω and 8Ω loads
- Internal gain resistors (AV = 34 dB)
- Minimum external component requirement
- Single supply operation
- Internal current limiting
- Internal thermal protection
- Compact 7-lead TO-220 package
- Low cost-per-watt
- Wide supply range 9V - 40V
Saturday, December 4, 2010
Here’s a circuit of 7 Watt audio amplifier that is very simple and very easy to build. This amplifier is built using TBA810 as the main component with the support of a few passive components. This circuit can work well, kits and components of this circuit can be found easily at an electronics store in your area.
Rangkaian TBA810 - 7 Watt audio amplifier
IC TBA810 PinningThe TBA810 chip is a class B amplifier with high efficiency and very low harmonic distortion . The input voltage range of the TBA810 is from 4 volts to 20 volts . Main features of the TBA810 circuit are : low noise , few external components required , polarity inversion protection , high supply voltage rejection ( 40dB min.) . TBA810 monolithic audio amplifier can be used in many audio applications for car radios ,other audio devices or portable applications .
Here is circuit of Mini amplifier 1.2 watt will use TBA820M chip, The TBA820M chip features a very low minimum working supply voltage of 3V, low quiescent current, good ripple rejection, no crossover distortion and low power dissipation. Maximum supply voltages is 16 Volts into 16 Ohms speaker, 12Volts into 8 Ohms and 9Volts into 4 Ohms.
Rangkaian TBA820M Mini Amplifier 1.2 Watt
TBA820M IC pinningThe work of the circuit, feed power supply 9Volt reach the circuit LED1 will stick bright tell the event works of the circuit. Which C7 will voltage filter smoothly then feed, power supply , give with IC1. At pin 6 when feed input sound signal reaches pin 3 ways s of IC1. by have C1,R1,R2 perform coupling and decrease signal sound level just rightly. The part of pin 2 of IC1 have R3 and C2 perform fix the expansion ratio and enhance the stability of tall frequency improve. From that time a signal had that to enlarged then change go out pin 5 ways s of IC1 change C4 coupling signals go to still a loudspeaker. By have R4 and C5 perform eradicate the noise goes out.
This is a 4×55 watt audio amplifier circuit designed by the popular quad bridge amplifier TDA7560. With a 14.4V supply the amplifier circuit will produce a power output of 4 x 55W on 2 Ohm load. The circuit is activated when the ST-By and MUTE pins are both connected the Vcc. The maximum supply voltage is 18V.
Rangkaian Amplifier TDA7560 - 4×55 Watts
TDA7560 is a 4 x 50 watt quad bridge car audio amplifier. The inputs are compatible with TDA7560 soil and can tolerate very high input signals (± 8Vpk) without sacrificing performance. If Hz are included as standard input capacitors (0.1mF), reducing the low frequency cut-off will amount to 16 Hz.The TDA7560 is developing a breakthrough BCD (Bipolar / CMOS / AMG) Class AB Audio Power Technology Amplifierin Flexiwatt 25 packs for high-power radios. The structure P-Channel/N-Channel fully complementary output allows the bar-rail output voltage swing which, combined with high saturation minimize the loss of production and the new power references in the field of automotive – radio without distorting the historical results.
Wednesday, November 24, 2010
This is a 5 Watt stereo audio amplifier circuit, built based on single amplifier TA7227 chip. The TA7227 can be used for dual mode (stereo) and single mode (bridge/mono). This IC type featured some circuit protection: thermal protection, over voltage protection, current limitter and BTL DC short connection.
Rangkaian TA7227 Stereo Audio AmplifierIC TA7227 must be connected to a heat sink. A computer cabinet fan can also be used in addition. Any way better the cooling better the performance. The circuit roughly draws 5A current at 12 V at full volume.So the power supply must be any thing more than 5A. Up to 15 V can be used ,which gives a bit more power boost.Commonly used is 12 V.
Here is a 35 Watt audio amplifier circuit based LM391 chip. The LM391 Audio Power Driver is designed to drive external Power Transistors in 10 to 100 watt power Amplifier designs. High power supply voltage operation and true high fidelity performance distinguish this IC. The LM391 is internally pro- tected for output faults and thermal overloads; circuitry pro- viding output Transistor protection is user programmable. By National Semiconductor
Rangkaian 35 Watt Power AmplifierBased on LM391
The circuit was designed to drive the power transistors of a power amplifier that will produce a power output of 35 Watts. Inductor L1 is constituted by 20 coils of wire, with thickness 0.9mm, round resistor R16. Transistors Q3-4 should be placed on heatsink. If are used the Q3-4 in packing TIPxxxx they can be placed straight above in PCB. If however they are used transistor in packing TO-3, then it will be supposed they are connected with short cables in the corresponding places on PCB.
List componet of 35 Watts amplifier LM391 circuit
- R1-3-5-8-10 = 1Kohm
- R2-7-11 = 100Kohm
- R4-6 = 4.7Kohm
- R9-12 = 100ohm
- R13 = 47Kohm
- R14-15 = 0.15ohm 5W
- R16 = 1ohm 2W carbon 5%
- R17 = 10ohm 1W carbon 5%
- C1 = 2.2uF 63V
- C2 = 4.7uF 25V
- C3-17 = 47uF 63V
- C4-8-9 = 1nF 100V MKT
- C5 = 47nF 100V MKT
- C6 = 22pF ceramic
- C7-11-12-13 = 100nF 100V MKT
- C10 = 22pF ceramic
- TR1 = 10K Trimmer
- D1-2 = IN4002
- IC1 = LM391
- Q1 = BD139
- Q2 = BD140
- Q3 = TIP2955
- Q4 = TIP3055
- L1 = See text
This is a circuit schematic for the mini power amplifer using TDA1015T, based on the application circuit from the datasheet. Not many external components are needed to complete at full 0.5W power amplifier. This is without its pre-amp but not many more components are required to add that to the circuit.
Rangkaian Mini Amplifier TDA1015TA volume control is included in schematic. Log type is required and 4k7 to 10k is about right. A dual pot is needed if you plan on using two TDA1015's to complete a stereo amp.
Chances are you'll want this amplifier portable. Batteries do the trick fine, but you won't get much power out of a couple of 1.5V cells. Unfortunately the size of a decent amount of battery power will mean that the overall size of this amp will be much bigger and for that there are more benefits to be had using a device like the TDA7052 or TDA2822 for stereo.
Chances are you'll want this amplifier portable. Batteries do the trick fine, but you won't get much power out of a couple of 1.5V cells. Unfortunately the size of a decent amount of battery power will mean that the overall size of this amp will be much bigger and for that there are more benefits to be had using a device like the TDA7052 or TDA2822 for stereo.
Quick ref data of TDA1015T Chip
- Supply voltage range: 3,6 to 12 V
- Peak output current: 1 A
- Output power: 0,5 W
- Voltage gain power amplifier: 29 dB
- Voltage gain preamplifier: 23 dB
- Total quiescent current: 22 mA
- Operating ambient temperature range: -25 to +150 °C
- Storage temperature range: -55 to + 150 °C
This is a small amplifier using TDA2822 chip designed for portable cassette players and radios. Including volume control. A 9 volt power supply is ideal for supply, which can be a source with batteries or transformer. It is not necessary to use heat sink.
Rangkaian TDA2822 Mini Portable AmplifierGeneral integrated amplifier circuit external components and need more larger heatsink. This paper presents a simple amplifier circuit, made easy. TDA2822 amplifier integrated circuits used in music players, portable DVD and other audio playback; power is not great but you can satisfy the requirements of the hearing, and the circuit is simple, good sound quality, wide voltage range of characteristics such as the amateur production Small amp better choice.
Feature of TDA2822 Amplifier Circuit
- Power Supply: 3 – 12 V at 200 – 500 mA max
- Idle Current: ~ 10 mA
- Output impedance 4 - 32 Ohm
- Freq. response ~ 40 Hz to 200 kHz, 8 ohm, G=10<> 50 kHz, 32 ohm
- Output Power:
- > 1 Watt max. 4-8 ohms, 12V DC
- > 500 mW, 32 ohm, 12V
- > 500 mW, 4 ohm, 6V
- ~ 0.4 Watt RMS cont. per channel
Schematic diagram of the class-H BTL amplifier TDA1562Q is shown below, in this circuit. Has an internal booster circuit elements That allow to develop at 4 Ohm load with 14.2 volts power supply, the power to 70 Watts
Rangkaian TDA1562Q - 70 Watts BTL AmplifierThe TDA1562Q contains a mono BTL class-H power amplifier output. At low output power, up to 18 W, the device operates as a normal BTL amplifier. When a larger output voltage swing is required, the internal supply voltage is lifted by means of the external electrolytic capacitors. Due to this momentarily higher supply voltage of the obtainable output power is 70 W.
Besides shortcircuit protection and thermal protection (Almost 145 degree), this output impedance amplifiers offer a protection, if the impedance it is low Than 0.5 ohms the circuit is deactivated.
Feature of TDA1562Q BTL Amplifier
Besides shortcircuit protection and thermal protection (Almost 145 degree), this output impedance amplifiers offer a protection, if the impedance it is low Than 0.5 ohms the circuit is deactivated.
Feature of TDA1562Q BTL Amplifier
- Output power:----------------------36W RMS into 4R
- Music power:-----------------------70W into 4R
- Frequency response:---------------1dB down at 28Hz and 55kHz
- Input sensitivity:-------------------130mV RMS (for 36W into 4?)
- Harmonic distortion:----------------typically 0.2% (see graphs)
- Signal-to-noise ratio:----------------95dB unweighted (22Hz to 22kHz)
Saturday, November 13, 2010
This present here is a 20Watts mono and 10Watt Car Stereo Amplifier circuit using IC TDA2004.
Rangkaian TDA 2004 BTL|Stereo AmplifierThe TDA2004 is a class B dual audio power amplifier in MULTIWATT [package Designed specifically for car radio applications. TDA2004 has low noise, low distortion, and robust. The robustness is supported by its operation safety protection features: very inductive loads, load dump voltage surge, overheating, the output AC-ground short, fortuitous open ground. Other Important Things is space and cost saving: very low external components counts, and very simple mounting system with no need for electrical isolation Between the package and the heat sink Because the heat contact metal of the package is already connected to ground.
TDA2004A Pinning
This is a power amplifier circuit which built using a TDA2002 power amplifier IC module. These are replacements for the original LM383 which is no longer available. It is easy to build and has a minimum of external components. The module has both short circuit protection and thermal protection. It can drive loads as low as 1.6 ohm and is capable of delivering over 10 watts from a 16 V supply.
Rangkaian Amplifier TDA2002The small amplifier is constructed around the TDA2002 IC, capable of delivering 4Wrms at 4ohms. The supply voltage may be anywhere between 8 and 18V, and the IC will accept transient voltage peaks of up to 28V without damage. The additional features of TDA 2002, very low number of external components, ease of assembly, space and cost saving, are maintained. The device provides a high output current capability (up to 3.5A) very low harmonic and cross-over distortion. Completely safe operation is guaranteed due to protection against DC and AC short circuit between all pins and ground, thermal over-range.
List Component
R1 : potentiometer 10 k ohm
R2 : 220 ohm 1/4 watt resistor
R3 : 2R2 ohm 1/4 watt resistor
R4 : 1 ohm 1/4 watt resistor
IC1 : TDA2002 amplifier module 1, Heat sink
C1 : 10uF/50V electrolytic capacitor
C2 : 470uF/16V electrolytic capacitor
C3 : 2200uF/25V electrolytic capacitor
C4 : 100 nF mylar 1
C5 : 100 nF monoblock 1
C6 : 100uF ecap 1
Friday, November 12, 2010
This following is a simple stereo amplifier circuit, with minimal external components. It use only one opamp. TDA1516Q, that is capable to give output power 2 x 5Watt in the 4 ohms, with 0.5% distortion. The capacitor C5, it Should in pins placed near the IC TDA1516Q.
The amplifier circuit can be used to drive small personal computer speakers. They are widely used in automotive sound systems, portable consumer products, digital players, telephony, and automotive head units. In some commercial equipment, they can also be found in in-dash DVD player, digital class and active subwoofers power amplifiers for cars and Hi-Fi applications.
The amplifier circuit can be used to drive small personal computer speakers. They are widely used in automotive sound systems, portable consumer products, digital players, telephony, and automotive head units. In some commercial equipment, they can also be found in in-dash DVD player, digital class and active subwoofers power amplifiers for cars and Hi-Fi applications.
Rangkaian TDA1516Q Stereo AmplifierThe TDA1516 an integrated class B output amplifier enclosed in a 13-lead single in-line plastic power package primarily designed for car radio applications due to its features such as flexible leads, identical inputs, load dump protection, good ripple rejection, low thermal resistance, mute/standby switch, reverse polarity safe, fixed gain, thermally protected, high output power, capability to handle high energy on outputs, flexibility in use, no switch-on/switch-off plop, low offset voltage at output, and requires very few external components
List Component
C1-C2 : 220nF Ceramic Capacitors
C3 : 100uF/25V Electrolytic Capacitors
C5 : 2200uF/25V Electrolytic Capacitors
C6-C7 : 71000uF/40V Electrolytic Capacitors
F1 : 2A Fuse
D1 : 1N5408
IC1 : TDA1516Q
M1-M2 : Loudspeaker 10w/4ohm
While doing research for Designing an Opamp headphone amplifier circuits portable, I built a portable headphone amplifier for testing purposes. EACH channel uses a single Burr-Brown Op-Amp NE5534 in a inverting configuration. It has adequate current capability to drive most headphones without an output stage. I have Used it with Sennheiser 465s and achieved ear-splitting volume. The amplifier is ideal as a booster for power-conserving stereo sources Such as portable CD players and for interfacing with passive EQ networks Such as tone controls or a headphone acoustic simulator.
The schematic for one channel of the amplifier is shown in figure below
Rangkaian 9 Volt Headphone Amplifier NE5534P1 : 22K Dual gang Log Potentiometer
R1,R5 : 18K 1/4W Resistors
R2,R3,R4,R6: 68K 1/4W Resistors
C1,C2,C6 : 4µ7/25V Electrolytic Capacitors
C3,C7 : 22pF Ceramic Capacitors
C4,C5,C8 : 220µF/25V Electrolytic Capacitors
IC1 : NE5532 Dual Op-amp
J1 : 3.5mm Stereo Jack Socket
SW1 : SPST Slide or toggle switch
B1 : 9 Volt PP3 battery
NE5532 PinningSaturday, August 28, 2010
This audio amplifier circuit, connected to 32 Ohm impedance mini-earphones, can detect very remote sounds. Useful for theatre, cinema and lecture goers: every word will be clearly heard. You can also listen to your television set at a very low volume, avoiding to bother relatives and neighbors. Even if you have a faultless hearing, you may discover unexpected sounds using this device: a remote bird twittering will seem very close to you.
Skema Rangkaian 1,5V Earphones Audio AmplifierThe heart of the circuit is a constant-volume control amplifier. All the signals picked-up by the microphone are amplified at a constant level of about 1 Volt peak to peak. In this manner very low amplitude audio signals are highly amplified and high amplitude ones are limited. This operation is accomplished by Q3, modifying the bias of Q1 (hence its AC gain) by means of R2.
A noteworthy feature of this circuit is 1,5V battery operation.
Typical current drawing: 7,5mA.
A noteworthy feature of this circuit is 1,5V battery operation.
Typical current drawing: 7,5mA.
List Component
- P1: 22K Log. Potentiometer
- R1,R9: 10K 1/4W Resistors
- R2: 1M 1/4W Resistor
- R3: 4K7 1/4W Resistor
- R4,R7: 100K 1/4W Resistor
- R5: 3K9 1/4W Resistor
- R6: 1K5 1/4W Resistor
- R8: 100R 1/4W Resistor
- C1,C2: 100nF 63V Polyester or Ceramic Capacitors
- C3,C6: 1µF 63V Polyester or Ceramic Capacitors
- C4: 10µF 25V Electrolytic Capacitor
- C5: 470µF 25V Electrolytic Capacitor
- D1: 1N4148 75V 150mA Diode
- Q1,Q2,Q3: BC547 45V 100mA NPN Transistors
- Q4: BC337 45V 800mA NPN Transistor
- MIC1: Miniature electret microphone
- SW1: SPST Switch
- J1: Stereo 3mm. Jack socket
- B1: 1.5V Battery
Source
Saturday, August 21, 2010
Audio Amplifier Based TDA1554 IC
This audio amplifier circuit works up to 2 x 22Watt with main power IC TDA1554. The circuit has only very few components and works best with a 4 Ohm speaker.
IC TDA1554 must be connected to a heat sink. A computer cabinet fan can also be used in addition. Any way better the cooling better the performance.The circuit roughly draws 6A current at 12 V at full volume.So the power supply must be any thing more than 6A.Up to 18 V can be used
IC TDA1554 must be connected to a heat sink. A computer cabinet fan can also be used in addition. Any way better the cooling better the performance.The circuit roughly draws 6A current at 12 V at full volume.So the power supply must be any thing more than 6A.Up to 18 V can be used
Skema rangkaian TDA1554 audio amplifier2 x 22W BTL
List Componet
- R1 39K 1/4 Watt Resistor
- C1,C2 10uf/25V Electrolytic Capacitor
- C3 100uf/25V Electrolytic Capacitor
- C4 47uf /25V Electrolytic Capacitor
- C5 0.1uf /25V Ceramic Capacitor
- C6 2200uf/25V Electrolytic Capacitor
- U1 TDA1554 Two Channel Audio Amp Chip
- MIS Heatsink For U1
TDA1554 IC Rangkaian TA8215 Car Audio Amplifier
This is circuit of 15W BTL stereo channel audio power amplifier based IC TA 8215 developed by Toshiba. In this power amplifier circuit, two TA 8215 ICs are used. This is for obtaining four channels that is two channels from each IC. TA 8215 is an IC with power amplifier stages and preamplifier integrated inside it.
The power supply required for this amplifier is single 12 V DC supply. The maximum output power delivered from each channel of this amplifier is 15 W to a 4 ohm speaker and hence the name 4×15 W power amplifier.
The power supply required for this amplifier is single 12 V DC supply. The maximum output power delivered from each channel of this amplifier is 15 W to a 4 ohm speaker and hence the name 4×15 W power amplifier.
TA8215 ICR1 with R2 forms a voltage divider that attenuates the input signal by 24dB. Considering the chip's 50dB gain, that still leaves 26dB overall gain, slightly more than enough to fully saturate the amplifier when the sound card works at maximal output. C1 blocks DC at the preamplifier input. C2 is the ground return of the feedback circuit. These two capacitors need to be in the ratio shown, in order to suppress switching clicks when powering the circuit on and off. The output pins 15 and 16 are connected directly to the speaker, while C7, R6, C8 and R7 provide the proper load phase shifting to avoid high frequency instability.
The power supply is decoupled with a rather small 100uF capacitor. That's enough for higher frequency decoupling, and at lower frequencies anyway the large capacitors in the PC power supply are fine. Pins 10 and 17 supply the power amplifiers, while pin 9 provides power to the pre stages. This power is filtered by C3. The power control pin 4 allows to shut down the amplifier, an option not used here, so it's tied to 12V. Pin 1 is a muting input, also not used, and left open.
The power supply is decoupled with a rather small 100uF capacitor. That's enough for higher frequency decoupling, and at lower frequencies anyway the large capacitors in the PC power supply are fine. Pins 10 and 17 supply the power amplifiers, while pin 9 provides power to the pre stages. This power is filtered by C3. The power control pin 4 allows to shut down the amplifier, an option not used here, so it's tied to 12V. Pin 1 is a muting input, also not used, and left open.
Tuesday, August 17, 2010
REVIEW|PRICE OF Nokia X3-02 Touch and Type
The Nokia X3-02 Touch and Type REVIEW and SPECIFICATIONS
The Nokia X3-02 Touch and Type is the first phone from Nokia to feature both a touch screen and the more traditional keypad. This best-of-both-worlds approach allows users to have all the fun of the touch screen experience, while keeping the undeniable practical benefits and ease of use that a keypad provides.
In terms of outward appearance, the Nokia X3 isn’t really breaking any new ground, but the 2.4” touch screen and super-slim design give the phone a modern, sleek look. Add to this the brushed aluminium cover, available in a range of 5 colours, and Nokia have a phone that would look good in anyone’s pocket.
Despite two sets of controls, though, the X3 Touch and Type is one of Nokia’s thinnest devices: it’s 9.6mm deep, 106mm tall, 48mm wide and weighs just 78g. The brushed aluminium finish and choice of five colours are also likely to appeal to fashion-conscious mobilists.
Even though it has a svelte profile, the X3 Touch and Type is full of features. It comes with four bands for voice, 3G, HSPA and WiFi for data, a music player and an FM radio. Mobile photographers get a 5-megapixel camera, with 4X digital zoom, which takes both still images and videos. The Communities app will keep you up-to-date with Twitter and Facebook.
The X3 Touch and Type has also got dedicated music and messaging keys for quick access to the music player and email. All the regular webmail and chat services are catered for by the included applications. Apps downloaded from the Ovi Store can be used through the 2.4-inch touch screen, so users don’t miss out on any of the latest games or productivity apps. They can also use the keys, of course, if they prefer, or adopt a hybrid approach.
PRICE: €125 (about £100)
SPECIFICATIONS
General
2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 900 / 1900 / 2100
Announced 2010, August
Status Coming soon. Exp. release 2010, Q3
Size
Dimensions 106.2 x 48.4 x 9.6 mm, 45.2 cc
Weight 78 g
Display
Type TFT resistive touchscreen, 256K colors
Size 240 x 320 pixels, 2.4 inches
Sound
Alert types Vibration, MP3 ringtones
Speakerphone Yes
- 3.5 mm audio jack
- Dedicated music key
Memory
Phonebook Yes, Photocall
Call records Yes
Card slot microSD, up to 16GB
Data
GPRS Class 10 (4+1/3+2 slots), 32 - 48 kbps
EDGE Class 10, 236.8 kbps
3G HSDPA, HSUPA
WLAN Wi-Fi 802.11 b/g/n
Bluetooth Yes, v2.1 with A2DP
Infrared port No
USB Yes, v2.0 microUSB
Camera
Primary 5 MP, 2592 x 1944 pixels
Video Yes
Secondary No
Features
Messaging SMS, MMS, Email, IM
Browser WAP 2.0/xHTML, HTML
Radio Stereo FM radio with RDS
Games Yes + downloadable
Colors White Silver, Dark Metal, Petrol Blue, Pink, Lilac
GPS No
Java Yes, MIDP 2.1
- Windows Live Messenger, Yahoo Messenger, Gtalk
- Facebook, Twitter
- MP4/H.263 player
- MP3/WAV/eAAC+ player
- Organizer
- Voice memo
- T9
Battery
Standard battery, Li-Ion (BL-4S)
Stand-by Up to 408 h (2G) / Up to 408 h (3G)
Talk time Up to 5 h 20 min (2G) / Up to 3 h 30 min (3G)
In terms of outward appearance, the Nokia X3 isn’t really breaking any new ground, but the 2.4” touch screen and super-slim design give the phone a modern, sleek look. Add to this the brushed aluminium cover, available in a range of 5 colours, and Nokia have a phone that would look good in anyone’s pocket.
Despite two sets of controls, though, the X3 Touch and Type is one of Nokia’s thinnest devices: it’s 9.6mm deep, 106mm tall, 48mm wide and weighs just 78g. The brushed aluminium finish and choice of five colours are also likely to appeal to fashion-conscious mobilists.
Even though it has a svelte profile, the X3 Touch and Type is full of features. It comes with four bands for voice, 3G, HSPA and WiFi for data, a music player and an FM radio. Mobile photographers get a 5-megapixel camera, with 4X digital zoom, which takes both still images and videos. The Communities app will keep you up-to-date with Twitter and Facebook.
The X3 Touch and Type has also got dedicated music and messaging keys for quick access to the music player and email. All the regular webmail and chat services are catered for by the included applications. Apps downloaded from the Ovi Store can be used through the 2.4-inch touch screen, so users don’t miss out on any of the latest games or productivity apps. They can also use the keys, of course, if they prefer, or adopt a hybrid approach.
PRICE: €125 (about £100)
SPECIFICATIONS
General
2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 900 / 1900 / 2100
Announced 2010, August
Status Coming soon. Exp. release 2010, Q3
Size
Dimensions 106.2 x 48.4 x 9.6 mm, 45.2 cc
Weight 78 g
Display
Type TFT resistive touchscreen, 256K colors
Size 240 x 320 pixels, 2.4 inches
Sound
Alert types Vibration, MP3 ringtones
Speakerphone Yes
- 3.5 mm audio jack
- Dedicated music key
Memory
Phonebook Yes, Photocall
Call records Yes
Card slot microSD, up to 16GB
Data
GPRS Class 10 (4+1/3+2 slots), 32 - 48 kbps
EDGE Class 10, 236.8 kbps
3G HSDPA, HSUPA
WLAN Wi-Fi 802.11 b/g/n
Bluetooth Yes, v2.1 with A2DP
Infrared port No
USB Yes, v2.0 microUSB
Camera
Primary 5 MP, 2592 x 1944 pixels
Video Yes
Secondary No
Features
Messaging SMS, MMS, Email, IM
Browser WAP 2.0/xHTML, HTML
Radio Stereo FM radio with RDS
Games Yes + downloadable
Colors White Silver, Dark Metal, Petrol Blue, Pink, Lilac
GPS No
Java Yes, MIDP 2.1
- Windows Live Messenger, Yahoo Messenger, Gtalk
- Facebook, Twitter
- MP4/H.263 player
- MP3/WAV/eAAC+ player
- Organizer
- Voice memo
- T9
Battery
Standard battery, Li-Ion (BL-4S)
Stand-by Up to 408 h (2G) / Up to 408 h (3G)
Talk time Up to 5 h 20 min (2G) / Up to 3 h 30 min (3G)
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