600W Audio Amplifier

(YMYA)600W AUDIO AMP

Description

The circuit is based around {LM4702} manufactured by NATIONAL semiconductors & {MJ11029-MJ11028} by ON semiconductors It is a high fidelity audio power amplifier. Designed for demanding consumer and pro-audio applications. You can also use this circuit with AV receivers, Audiophile power amps, Pro Audio High voltage industrial applications etc Amplifier output power maybe scaled by changing the supply voltage and number of output devices. The circuit includes thermal shutdown circuitry that activates when the die temperature exceeds 150°c. CIRCUIT’s mute function, when activated, mutes the input drive signal and forces the amplifier output to a quiescent state.

Power

Maximum Output power @ 8ohms : 300watt
Absolute max power supply voltage :±38V to ±40V
Recommended power supply voltage :±30V to ±35V

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wijerathna

the greatest page

rodelo s. carillo

nice, simple, clear and a well presented schematic diagram.

robert

i’ll try this one, thanks

Narciso C. Calzo

hi rober, is the amp okey?

victor

just wondering do you need to use highpowerresistors? so yes which ones?

Narciso C. Calzo

ILL TRY THIS ONE TOO.

Narciso C. Calzo

It seems that 400uf, 400v caps is not available. Can I use 400uf, 450v or 2-200uf in parallel? Can you tell me what wattages and voltages of resistors and capacitors to adopt. especially in the output stages. Is there any downloadable PCB for this project? Where can I find 5v for the mute circuitry? Thaks.

Rofelou Derecho

hi guys! Could anybody tells me how much current this amp need?

Jan

I want to make this is it work clearly…

Zorg

300W per channel with ±40V power supply and 8ohm speakers, how is it possible? 40*40/8 = 200, and we all know that real figures are way below this absolute theoretical limit.

Radek

Delta between -40 and +40 is 80 and not 40…

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