Patent ID: 7432745

Claim:
A gate driver circuit comprising: a level shifter for outputting a first voltage pulse or a second voltage pulse according to an input SET or RESET signal; a reshaper for restoring the first or the second voltage pulse in a high voltage region; a gate driver for generating a signal for driving a gate of a high voltage output element from the restored pulse; and a converter, which is directly coupled between an output of the level shifter and an input of the reshaper, for converting the voltage pulse output by the level shifter into a pulse appropriate for an operational range of the reshaper, wherein the converter comprises a first converting part for converting the first voltage pulse or the second voltage pulse output by the level shifter into a first or a second current signal; and a second converting part for converting the converted current signal into a voltage pulse appropriate for an operational range of the reshaper, wherein the first converting part comprises at least one Zener diode.