An inverter is a simple electronic device that can be used to provide backup power in case of a blackout or grid failure. An easy-to-build inverter can simply do this by supplementing power from a DC battery and translating it into a stable AC signal of the desire voltage level.
Inverters have found their application in every industry, from serving as power backups at home to function as key auxiliary power units for complex networking equipment in NOC centers. In today's article, we are going to go over a step-by-step procedure on how to design an Easy Inverter Circuit using the 2SC1815 NPN transistors.
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You will need the following parts to build this project:
|1)||N - channel MOSFET||IRFZ44N||2|
|3)||Transformer||Step-up/12V 3A - 220V||1|
|4)||Inverter Circuit PCB||JLCPCB||1|
|6)||Resistors||1K, 330 Ohm, 220 Ohm||6|
|8)||Soldering Iron||45W - 65W||1|
|9)||Soldering Wire with Flux||-||1|
|12)||Jumper Wires||-||As per need|
The working of this inverter circuit is as follows. Here, we are using two 2SC1815 transistors, configured as a multivibrator circuit running in astable mode, in order to generate a free-running square wave. On powering On the circuit using a 12V DC Battery, a square wave signal is generated by the multivibrator circuit, but, in order to run an AC device without any issues, we require a pure AC sine wave signal from the inverter. This is achieved by chopping off the excess RMS voltage of the astable square wave signal from the multivibrator circuit.