The high voltage (HV) to low voltage (LV) auxiliary DC / DC converter must step high battery voltage down to 12 V or 48 V efficiently and safely, powering every conventional electronic system in the vehicle while maintaining galvanic isolation from the traction battery.
Vishay's SiC and silicon power MOSFETs and Schottky diodes deliver efficient high frequency switching and rectification for buck converters, while Automotive Grade optocouplers provide the isolation barrier between HV and LV domains. Our current sensing resistors and DC-Link capacitors add the feedback and filtering needed for a stable auxiliary power supply, and TVS diodes provide transient protection.
Behind the HV/LV auxiliary DC/DC converter is The DNA of tech.®
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