400 watts amplifier circuit diagram

400 watts amplifier circuit diagram:

This is a 400 watts amplifier circuit diagram. This board can make 400 watts. It’s a stereo audio circuit. Here, use 2sc5200 and 2sa1943 transistors, 2 pairs for one side. 4 transistors for the right side and another 4 transistors for the left side.  can use a maximum 60-0-60 voltage in this board. We are using 50-0-50 voltage here. toshiba transistors. 

we are using 50-0-50 voltage and 10 amperes. we know that voltage X amperes watts. 50X10=500 watts. The transformer is 500 watts. 

Circuit Diagram link here

2sc5200 Polarity is NPN. 2sa1943 polarity is PNP. Max Collector Power Dissipation is 150 Watts. The maximum collector-base Voltage is 250 volts. Max Collector-Emitter Voltage is 250 Voltage. The Max Emitter-Base Voltage is 5 Voltage. The Maximum Collector Current is 17 amperes. 

This circuit can produce a maximum of 600 watts. The diode and capacitor should be of the best quality.  Every amplifier needs a speaker protection circuit. This circuit also requires speaker protection.

Speaker Protection circuit diagram is here

This is the Speaker protection circuit diagram. It can protect our Speaker from the burn. If the amplifier has any problems, this circuit can save our soundbox. Normally, when the transistor makes a short circuit, the voltage comes out from the speaker output line, and this circuit protects that voltage. This circuit should not allow direct voltage to be sent to the speaker. This circuit is essential for protecting the speaker.

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