Electronics Help Care electronics circuit diagram
Amplifier circuit using 2sc5200 and 2sa1943
This is an amplifier circuit using 2sc5200 and 2sa1943. It’s a 150-watt audio diagram. In this diagram, we can use 25-0-25 to 45-0-45 voltage and 3 amperes. If we use 35-0-35 voltage and 3 amperes, we can get 35X3=105 watts. Alternatively, if we use 40-0-40 voltage and 3 amperes, we get 40X3=120 watts.
The circuit diagram is here
This circuit doesn’t have speaker protection. here, we need a speaker protection circuit. here is the link to get the 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 problem then this circuit can save our soundbox. Normally when the transistor makes a short circuit the voltage comes out from the speaker output line then this circuit protects that voltage. This circuit should not allow any direct voltage to be sent to the speaker. This circuit is essential for protecting the speaker.
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