The choice of main circuit power device of Inverter

The choice of main circuit power device of Inverter

Inverter main power component selection is essential components currently in use have more power Darlington Power Transistor (BJT), power MOSFET (MOS-FET), insulated gate transistor (IGBT) and turn-off thyristor (GTO) and so on, in a small volume low-pressure system, a device used frequently in the MOSFET, because the MOSFET has low on-state voltage drop and higher switching frequency, in the high-voltage large-capacity systems generally are used IGBT Module This is because the MOSFET as the voltage increases its on-state resistance also will be increased, while the IGBT in the capacity of the system account for a large advantage, and in the large-capacity (100kVA and above) system, generally used as a GTO power components.

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