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Audio circuits design projects and schematics

Audio circuits design projects and schematics, various audio amplifiers circuits with diagram and schematic.

LM4780 120 watt amplifier circuit diagram

Using LM4780 audio amplifier circuit can be designed a very simple 120 watt amplifier high power stereo amp( 60 watt per channel ) .
This LM4780 120 watt amplifier stereo circuit is capable of typically delivering 60W per channel of continuous average output power into an 8 ohms load with less than 0.5% THD+N from 20Hz - 20kHz.
The LM4780 is fully protected utilizing National's Self Peak Instantaneous Temperature (°Ke) (SPiKeTM) protection circuitry.

Electronic Circuits: 

TDA2030 200 watt amp low cost audio power amplifier

This TDA2030 200 watt amp low cost audio power amplifier can deliver high output audio power up to 200 watts on a 2 – 4 ohms load impedance . This 200 watt amp high power audio amplifier is build around the TDA2030 audio amplifier IC which normally can deliver up to 14 watts on a 4 ohm load , but if is used in bridge mode an if we use some cheap power transistors can be created a 200 watts high power audio amplifier .
All transistors and the ICs must be mounted on a heatsink to prevent over temperature damage . For small value resistors ( 1 ohm ,2.2 ohms ) use 2 -5 watts resistors .

Electronic Circuits: 

TDA1515 audio power amplifier circuit diagram

The design of this TDA1515 audio power amplifier is very simple and offers a maximum of 24 watts output power on a 2 ohms load impedance ( bridge mode connections ) . The TDA1515 audio IC power amplifier is used in many audio applications like PC speaker or TV , car radio applications .

Electronic Circuits: 


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