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Working principle of inverter & soft starter

An inverter is an electronic device that converts direct current (DC) to alternating current (AC). It typically consists of a series of electronic switches, such as transistors or insulated gate bipolar transistors (IGBTs), which switch on and off rapidly to create an AC waveform from a DC input. By controlling the timing and duration of these switches, the inverter can produce AC with varying frequency, voltage, and waveform characteristics, making it useful for a wide range of applications including motor drives, renewable energy systems, and uninterruptible power supplies (UPS).

A soft starter is an electronic device used to gradually ramp up the voltage and current supplied to an electric motor during startup. It works by controlling the voltage applied to the motor, typically by using semiconductor devices like thyristors or silicon-controlled rectifiers (SCRs). By gradually increasing the voltage, it reduces the inrush current and mechanical stress on the motor and connected equipment, ensuring a smoother and more controlled start.


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