Planar transformer for high frequency high voltage generation applications

This paper investigates the planar transformer for high frequency high voltage (HV) generator applications. The electrical and insulation design of 2kW 400 kHz 5kV HFHV planar transformers for 2kW 35kVDC HV generator are discussed in details. A hardware prototype of 2kW 400 kHz 35kVDC HV generator with planar transformer structure is built in lab to validate the concept finally. The power density of 2kW 35kVDC HV generator with proposed high frequency HV planar transformer is higher than 2kW/L with attractive performance. The HV planar transformer is promising for high frequency HV generator applications.