A driver circuit 1000 for driving functional devices, such as an LED 1020-1023, a buzzer 1060, a voltage converter or an EL-lamp, and a method of operating the driver circuit are provided. The circuit includes an inductor 1030, first and second connection points for connection of a voltage source 1050, switching means 1040 which when in a first state allows an electrical current to flow from the f...

A driver circuit 1000 for driving functional devices, such as an LED 1020-1023, a buzzer 1060, a voltage converter or an EL-lamp, and a method of operating the driver circuit are provided. The circuit includes an inductor 1030, first and second connection points for connection of a voltage source 1050, switching means 1040 which when in a first state allows an electrical current to flow from the f...