Patent ID: 6885225

Claim:
A drive circuit comprising: a totem-pole output stage including a top arm, a bottom arm, and an output terminal connected between the top arm and the bottom arm, the top arm being connected to a power supply terminal to which a first power supply voltage is supplied; a pre-drive circuit connected to the totem-pole output stage, the pre-drive circuit including a top arm driver that drives the top arm, and a bottom arm driver that drives the bottom arm; and a power supply voltage booster circuit connected to the pre-drive circuit, the power supply voltage booster circuit including a first voltage booster circuit that boosts a second power supply voltage supplied to the first voltage booster circuit, and outputs a first boosted voltage to the bottom arm driver, and second voltage booster circuit that boosts the first boosted voltage and outputs a second boosted voltage to the top arm driver, wherein the second voltage booster circuit is connected to the first voltage booster circuit and to the power supply terminal so that the second boosted voltage is the sum of the first boosted voltage and the first supply voltage, and output power for controlling a load is output at the output terminal.