Patent ID: 8847630

Claim:
A driver circuit comprising: an input arranged to receive a logic control signal controlling a logic state ON or OFF of the driver circuit; an output arranged to be connected to a load; a power switch, having a control terminal, a first current terminal connected to a first power supply and a second current terminal arranged to connected to the output to drive the load; a first control circuit of a first type arranged between the control terminal of the power switch and a second power supply; a first control circuit of a second type, arranged to couple the control terminal of the power switch to the first power supply when the control signal is in the OFF state; an oscillation detection circuit to detect voltage or current oscillations in the first power supply; and a second control circuit of the second type arranged to couple the control terminal of the power switch to the first power supply upon detection of voltage or current oscillations in the first power supply by the oscillation detection circuit.