AC / variable frequency motor systems demand controlled 3-phase power, efficient switching, accurate feedback and protection across rectifier, DC-Link, and inverter stages. The AC motor drives / VFDs must generate precisely controlled 3-phase power to regulate motor speed and torque, while managing switching noise.
Enabling AC motor drives and VFDs are Vishay's power MOSFETs, high power modules, and diodes and rectifiers that form the AC input rectification and 3-phase inverter stages, while gate drivers and optocouplers switch and isolate the high side and low side power devices safely. Braking resistors, shunt resistors, and thermistors manage regenerative energy and monitor drive temperature, and aluminum electrolytic and film capacitors filter and stabilize the DC bus.
Behind AC motor drives and VFDs is The DNA of tech.®
With over six decades of experience developing components designed to withstand high temperature and humidity conditions, Vishay's components are engineered to ensure exceptional reliability, featuring such qualifications as AEC-Q100, AEC-Q101, and AEC-Q200.
Components withstand temperatures up to 180 °C in harsh environments
Industry's lowest RDS(on) optimized for gate drives
AEC, MIL qualifications and superior long term performance
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