Simple inverter 12V - 220V 50Hz

Distinguish this converter is that it gives a full-fledged sinusoidal voltage of 50 Hz.
Simple inverter 12V - 220V 50Hz

The inverter converts 12 V DC to 220 V AC at 50 Hz. It has a minimum number of components and a small size. The power of the inverter is determined by the power of its transformer and in my case it lies in the range of 30-50 watts. The waveform of the output voltage is sinusoidal.
You can power on the inverter with lamps, laptops, charge cell phones, electric shavers, etc. Since the frequency of the inverter is 50 Hz, you can connect any device with a power consumption of up to 30 watts.
List of components:
Simple inverter 12V - 220V 50Hz

Converter circuit


On the chip assembled multivibrator, which generates rectangular pulses with a frequency of 50 Hz. Transistor Q1 is inverting, as a result, the output stages of transistors Q2 and Q3 work alternately. This scheme is called push-pull. The output stage load is a step-up transformer that converts the voltage to 220 V and forms a sine-wave signal from rectangular pulses.
Simple inverter 12V - 220V 50Hz

Inverter assembly


The inverter is assembled on a breadboard.Elements are inserted and soldered to the bottom with jumpers. Output stage transistors are installed on small heat sinks.
Simple inverter 12V - 220V 50Hz

Simple inverter 12V - 220V 50Hz

Simple inverter 12V - 220V 50Hz

Simple inverter 12V - 220V 50Hz

Simple inverter 12V - 220V 50Hz

With proper assembly and serviceable components, the converter starts working immediately and does not need to be configured. The circuit is simple, does not contain sophisticated electronics and has proven itself well.
Inverter works well from car battery. In fact, for the car I did this inverter.



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