Patent ID: 8258655

Claim:
A circuit arrangement comprising: an input for receiving an input control signal; a drive circuit having a control input, an output, supply terminals, and a first enable input, the drive circuit being adapted to generate a drive signal at the output dependent on a signal received at the control input, and dependent on a signal received at the first enable input; a first supply voltage circuit adapted to provide a first supply voltage at output terminals, the output terminals being coupled to the supply terminals of the drive circuit; a second supply voltage circuit adapted to provide a second supply voltage at output terminals, the output terminals being coupled to the supply terminals of the drive circuit, the second supply voltage circuit having a second enable input, and being adapted to generate the second supply voltage dependent on a signal received at the second enable input; wherein the second enable input of the second supply voltage circuit is adapted to receive a signal that is dependent on the input control signal, wherein the first enable input of the drive circuit is adapted to receive a signal that is dependent on the second supply voltage, and wherein the control input of the drive circuit is adapted to receive a signal that is dependent on the input control signal.