WE-GDT Gate Drive Transformers Würth Elektronik WE-GDT Gate Drive Transformers provide an isolation voltage of 1.5kV to meet all safety requirements. They offer one or two secondary windings and six different turns ratios. Other features include 1500VDC insulation test voltage and up to 80V operating voltage. Würth WE-GDT Gate Drive Transformers are designed for gate drive application high-efficient SMPS and also suitable for use in signal and power applications such as synchronous flyback designs.