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For non-resonant inverters, a soft-switching converter is used as a means of controlling the slow changes in voltage and current at the beginning of the rise. As switching elements, bipolar transistors are commonly used, but more recently, insulating gate bipolar junction transistor and Power Metal Oxide Semiconductor field effect transistors (mosfets) have been widely used in small and medium power ranges. In the high power range, the THYRISTOR (GTO) element is used to turn off the gate. IGBT is a voltage control element, than the current control of the Bipolar Junction Transistor Input Control Circuit is simple, high voltage, low on-voltage, switching speed components. Because of the simplicity of the control loop, IPM (intelligent power module) , which encapsulates the power element, drive loop and protection loop,
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