Electronics Help Care electronics circuit diagram
Amplifier circuit using STK403- 430:
This is an amplifier circuit using stk403-430 IC. STK403-400 series products are audio power
amplifier hybrid IC. 6-channel class AB amplifier. This diagram has 6 audio inputs and 6 audio outputs. Each channel got 20 watts. 6X20 watts. 35-0-35 voltage.
DIY transistor amplifier driver circuit:
Here DIY transistor amplifier driver circuit board. This is the driver board for the transistor board. We can use 2 transistors to 60 transistors. per pair of transistors can make a maximum of 150 watts. Here, use 2 driver transistors, 2SC5200 and 2SA1943. 2sc5200 is an NPN transistor, and 2sa1943 is a PNP transistor. We can use this transistor as the main output transistor.
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.
We have another post for you. like Amplifier circuit 200 watts
Transistor circuit for amplifier
Build a Transformer or construct the transformer. Home Theater Circuit Diagram 5.1
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