1w amplifier | Electronic Schematic Diagram https://electronicscheme.net Schematic Diagram & PCB Design Sat, 27 Jun 2015 23:03:51 +0000 en-US hourly 1 https://i0.wp.com/electronicscheme.net/wp-content/uploads/2017/05/cropped-transparent_text_effect.png?fit=32%2C32&ssl=1 1w amplifier | Electronic Schematic Diagram https://electronicscheme.net 32 32 129969089 2x1W Stereo Amplifier with IC KA2209 https://electronicscheme.net/2x1w-stereo-amplifier-with-ic-ka2209/?utm_source=rss&utm_medium=rss&utm_campaign=2x1w-stereo-amplifier-with-ic-ka2209 https://electronicscheme.net/2x1w-stereo-amplifier-with-ic-ka2209/#comments Sun, 30 Aug 2009 04:16:56 +0000 http://electronicscheme.net/?p=218 This is 2x1W stereo amplifier circuit based on single IC KA2209. IC KA2209 is an equivalent IC to the TDA2822, you can use TDA2822 if […]

The post 2x1W Stereo Amplifier with IC KA2209 first appeared on Electronic Schematic Diagram.]]> This is 2x1W stereo amplifier circuit based on single IC KA2209. IC KA2209 is an equivalent IC to the TDA2822, you can use TDA2822 if you can’t find KA2209. It is ideal for battery powered operation since the supply required for this circuit is 2V to 9VDC. Power output depends critically on speaker resistance & supply voltage. At 3V into 4 ohm speakers the power is 0.1W. At 6V into 4 ohm speakers it is 0.65W. At 9V it is over 1W.

2x1W Stereo Amplifier with IC KA2209 circuit diagram

Components List:

R1 R2_______10K
R3 R4_______4R7
C1__________10uF mini
C2, C3______470uF/16V
C4, C5______100uF/25V
C6, C7______100nF
IC__________KA2209/TDA2822
IC socket___8 pin


The kit for this stereo audio amplifier circuit is available at elektronickits.com
Download 2x1W Stereo Amplifier with IC KA2209 circuit tutorial here:

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2 x 1W Stereo Amplifier

1 file(s) 179.22 KB
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The KA2209 is a monolithic integrated audio amplifier in a 8-Pin plastic Dual in line package.

KA2209 Features:

  • Wide operating supply voltage:Vcc=1.8V-9V
  • Low crossover distortion
  • Low quiescent circuit current
  • bridge/stereo configuration

Download KA2209 datasheet here:

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KA2209 Datasheet

1 file(s) 582.16 KB
Download Datasheet

The post 2x1W Stereo Amplifier with IC KA2209 first appeared on Electronic Schematic Diagram.]]> https://electronicscheme.net/2x1w-stereo-amplifier-with-ic-ka2209/feed/ 1 218 1W Stereo Audio Amplifier using LM386N https://electronicscheme.net/1w-stereo-audio-amplifier-with-lm386n/?utm_source=rss&utm_medium=rss&utm_campaign=1w-stereo-audio-amplifier-with-lm386n https://electronicscheme.net/1w-stereo-audio-amplifier-with-lm386n/#respond Thu, 27 Aug 2009 01:51:32 +0000 http://electronicscheme.net/?p=215 This is 1W stereo audio amplifier with LM386N. The output power is 1 watt for each channel, so it should be use two ICs of […]

The post 1W Stereo Audio Amplifier using LM386N first appeared on Electronic Schematic Diagram.]]> This is 1W stereo audio amplifier with LM386N. The output power is 1 watt for each channel, so it should be use two ICs of LM386N National Semiconductor for stereo channel. This circuit belongs to kitsrus.com and the kit is available there or at electronickits.com. This circuit only need 10mA current with best voltage supply is 6-12VDC. No heatsink required for normal usage.

1W Stereo Audio Amplifier with LM386N

There are only a few external components, the IC? contains most of the necessary circuitry. C1, C5 are? the input coupling capacitors, which block any DC? that might be present on the inputs. C2, C9 maintain? DC bias levels in the gain adjustment (feed back)? circuit. C4 provides power supply decoupling, and? C6, C8 are the output coupling capacitors. C10, R1? and C11, R2 act as zobel networks providing a high? frequency load to maintain stability where loud speaker inductive reactance may become excessive.? The pot provides adjustable input level attenuation.

Components List:

Capacitors:
C1, C5 2.2 uF / 50Vecap _________ 2
C2, C9 10 uF / 25V ecap _________ 2
C3, C7 100 nF mono (104) ________ 2
C4 100 uF / 16V ecap ____________ 1
C6, C8 470 uF / 16V ecap ________ 2
C10, C11 47 nF mylar (473) ______ 2

Resistors :
R1, R2 10 ohm ___________________ 2
Pot 1 10k ohm stereo pot ________ 1

Misc. :
IC 1, 2 LM386N __________________ 2
8 pin IC socket _________________ 2

Download the complete explanation of 1W Stereo Audio Amplifier using LM386N:

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1W Stereo Amplifier using LM386N

1 file(s) 260.69 KB
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Download the LM386N Datasheet:

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LM386 Datasheet

1 file(s) 303.61 KB
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1W Stereo Audio Amplifier Kit

The post 1W Stereo Audio Amplifier using LM386N first appeared on Electronic Schematic Diagram.]]> https://electronicscheme.net/1w-stereo-audio-amplifier-with-lm386n/feed/ 0 215 1W Audio Amplifier with TDA7052 https://electronicscheme.net/1w-mono-amplifier/?utm_source=rss&utm_medium=rss&utm_campaign=1w-mono-amplifier https://electronicscheme.net/1w-mono-amplifier/#respond Tue, 25 Aug 2009 14:14:39 +0000 http://electronicscheme.net/?p=210 This is the circuit diagram of 1W audio amplifier which use TDA7052 as the main component and other 5 pieces of components to support the […]

The post 1W Audio Amplifier with TDA7052 first appeared on Electronic Schematic Diagram.]]> This is the circuit diagram of 1W audio amplifier which use TDA7052 as the main component and other 5 pieces of components to support the main component. The ideal supply voltage of this circuit is about 6-12V and no heatsink required. The schematic is for mono audio channel, just build two similar circuit for stereo channel.

1W Mono Amplifier

Components :

  • R1 : 1K ohm resistor
  • R2 : 10K ohm log potentiometer
  • C1 : 2.2uF/16V electrolytic capacitor
  • C2 : 100nF ceramic/mono
  • C3 : 100uF electrolytic
  • TDA7052 Integrated Circuit
  • 8 pin IC socket


1W Audio Amplifier Specifications :

  • D.C. input : 3 ? 15 V at < 300 mA.
  • Idle current < 8 mA, 4 mA typical. Power output > 1 Watt @ 8 ohms maximum.
  • > 0.25 Watt RMS continuous
  • Freq. Resp. > 20 Hz ? 20 kHz
  • ~ 10 ? 50 kHz, ? 3dB
  • THD < 1 % @ 100 mW, 0.2% Typ. S/N ratio > 70 dBA
  • Gain ~ 30 dB maximum.
  • Input Z ~ 10 k ohm.

If you prefer to buy the kit of this circuit, just go the electronickits.com.
The tutorial also available in PDF format, download the file here:

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1W Audio Amplifier

1 file(s) 111.75 KB
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Download the datasheet of TDA7052 here:

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TDA7052 Datasheet

1 file(s) 47.46 KB
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1W Audio Amplifier Circuit with TDA7052

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