Stereo OTL Audio Amplifier


Posted on Feb 6, 2014

The following diagram is the circuit of Stereo OTL Audio Amplifier. It based on IC circuit, so the circuit looks simple. You can use IC LM379, LM377, LM378 for this amplifier project. Refer to the table, maximum voltage supply for IC LM379 is 28V, it will will deliver 4W/channel. For LM377, maximum Vcc voltage is 18V single supply and delivers about


Stereo OTL Audio Amplifier
Click here to download the full size of the above Circuit.

2W/channel. While for LM378, use maximum 24V regulated DC power supply and you will get 3W hifi audio power per channel. An audio amplifier is an electronic amplifier that amplifies low-power audio signals (signals composed primarily of frequencies between 20 - 20 000 Hz, the human range of hearing) to a level suitable for driving loudspeakers and is the final stage in a typical audio playback chain. The preceding stages in such a chain are low power audio amplifiers which perform tasks like pre-amplification, equalization, tone control, mixing/effects, or audio sources like record players, CD players, and cassette players. Most audio amplifiers require these low-level inputs to adhere to line levels. While the input signal to an audio amplifier may measure only a few hundred microwatts, its output may be tens, hundreds, or thousands of watts. More explanation about power audio amplifier can be found at wikipedia. org This is a video tutorial about how to a very simple audio amplifier based on the LM386 amplifier chip. It can be built for less than $20 (or might be less than $8 in some countries) and used to amplify any low level audio signal including a guitar, bass or mp3 player.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Colour (Sound) Organ
    600 watt audio amplifier (LM4702)
    Versatile One-Shot Cpu Interface
    Two Colour LED Light Bar Circuit Schematic Diagram
    Design of a kind of simple and practical telephone alarm system
    gas leakage alarm
    in making incandescent lamps
    buffer amplifiers
    park aid schematics
    24W amplifier using TDA1516
    FAN302HL 5 volt switching power supply circuit design electronic project
    Wireless microphone schematic
    Digital Camera 5 channel power supply MAX1565



    Top