A novel gate driver with output having positive input voltage and negative double input voltage

This paper presents a gate driver, whose output has the positive input voltage and the negative double output voltage under only one positive-voltage source required. Such a gate driver can reduce the transient period of the gate driver and hence can reduce the corresponding switching loss. In addition, since the negative double output voltage is imposed on the input of the power switch during the turn-off period, the leakage current can be reduced, and hence the undesired energy loss can be decreased. The detailed operating principles are illustrated and some simulated and experimental results are provided to verify the effectiveness of the proposed scheme.