Square wave output inverter currently mostly adopts PWM integrated circuit, such as SG3525,TL494, etc Practice has proved that the SG3525 integrated circuit and the power field effect tube as the switching power element can realize the inverter with high performance and high price. Because SG3525 has the ability to drive the power field effect tube directly and has the function of internal reference source, operational amplifier and undervoltage protection, its peripheral circuit is very simple 2. Sine wave output inverter control integrated circuit, sine wave output inverter, its control circuit can be controlled by microprocessor, such as Intel 80C196MC production The MP16 produced by Motorola and the PIC16C73 produced by Mi-Crochip have multi-channel PWM generator, and the dead zone between the upper and upper bridge arms can be set

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