mini inverter circuit diagram

Electronics Help Care March 11, 2026 how to make inverter

This is a mini inverter circuit diagram using only 2 transistors. This inverter can make 50 watts maximum using 12 volts and 5 amperes. Here, only 2 transistors are used. Both transistors are positive NPN transistors. Like we are using 2sc5200. also we can use any positive transistor like TIP41c. The resistors are 220 ohms.

The transistor needs a strong heatsink and must use a separator between the transistor and the heatsink. The resistor will be a minimum of half watts. It will be good if it’s shouldbe 1 watt. Here we can see a transformer. The transformer should be a minimum 10-ampere transformer to get a good output watts. Here we need a center tape transformer. The transformer should be a 12-0-12 voltage and 10 amperes in the secondary wire.

Here we can see the output is 220 ac. The middle wire center should be direct + volt. another 2 wire will go to the direct transistor collector.

DIY transistor amplifier circuit diagram using 2SC5200 and 2SA1943:

This is the DIY transistor amplifier circuit diagram using 2SC5200 and 2SA1943 transistors. This amplifier can deliver 100 watts at 35-0-35 volts and 3 amperes. It’s a mini audio amplifier circuit board. It’s a mono circuit diagram. A stereo needs a dual circuit. This circuit needs positive, negative, and ground voltage.

DIY transistor amplifier circuit diagram using 2sc5200 and 2sa1943

Here we can see 2sc5200 and 2sa1943. This is a pair of transistors. Here in this circuit, a positive one 2sc5200.

Here, used 2 transistors are used. 2sc5200 and 2sa1943 transistor. 2sc5200 is a positive NPN transistor. And 2sa1943 is a negative transistor PNP. We can also use another transistor. loke c5198 and a1941. or tip41 and tip42. Any kind of PNP or NPN transistors can be used here according to the base, emitter, and collector.

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