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There are multiple types of inverters available in the market, such as square wave, modified sinewave, and pure sinewave inverters. Among them, square wave and modified sinewave inverters are not at all good for inductive loads such as fans or motors. Not only they will heat such loads, but also it will produce noise from an inductive load. So overall, it is recommended to use pure sinewave inverters for such purposes. In this video, we are going to make such an inverter with the help of an SPWM controller. The circuit is simple. It consists of an EG002 SPWM controller module along with an H bridge made up of 4 N channel MOSFETs. The H bridge is connected to the transformer primary, and the feedback circuit consists of a bridge rectifier and a voltage divider is connected in between the secondary of the transformer and the EGS002 module. A 2.2 micro fared 650V capacitor is connected to the secondary winding to get rid of the high-frequency noise. The module has a pretty good list of features such as output voltage regulation, Undervoltage cut-off, over current protection, soft start and many more. You can read the more details in the project documentation Let’s look at how it works. You can see that as soon as the switch is turned on the output ac voltage rises from 0 to 220v. The output is connected to a 60-watt incandescent lamp. As you can see the inverter produces a pure sinewave with a frequency of 50 hertz.