DIY 12V to 220V, 300W PWM Inverter using IC SG3525 @HowtoElectronics
DIY 12V to 220V, 300W PWM Inverter using IC SG3525  @HowtoElectronics
Uploaded February 2023 | Updated September 2026, 2 weeks ago
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In this project, we will make a 300W, 50/60 Hz Inverter using IC SG3525 with PWM Inverter Circuit. The circuit will take a 12V DC power supply from a 12V battery and converts it into 220V, 300W PWM output. An inverter is an electronic device that converts direct current (DC) electricity into alternating current (AC) electricity. It is commonly used to power AC devices from a DC source such as a battery or solar panels. Earlier we made CD4047 Inverter which you can follow for reference.

The SG3525 is a pulse width modulation (PWM) control integrated circuit (IC) used in switching power supplies and inverters. It is designed to control the output voltage and frequency of a DC-AC converter and can be used in a variety of applications such as motor control, lighting, and uninterruptible power supplies (UPS). The SG3525 provides a means of regulating the output voltage and frequency by adjusting the duty cycle of the PWM signal. It also includes protection features such as over-current and thermal shutdown.

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DIY 12V to 220V, 300W PWM Inverter using IC SG3525

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