Circuit arrangement for a timed power supply
AssigneeInfineon Technologies AG
InventorMartin Feldtkeller
Life of this patent
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Abstract
The invention relates to a circuit arrangement for a timed power supply having an integrated circuit connected to first and second supply potential terminals and includes a switching mechanism, a control circuit that controls the switching mechanism, and a first diode. A coil is additionally provided, which is connected to the switching mechanism and to a first output terminal. A load is connected between the first output terminal and a second output terminal and a first charge storage unit is connected in parallel with the load. The switching mechanism includes a first and a second semiconductor switch. This makes possible a timed power supply that features a low power loss and a low electromagnetic radiation.
Claims11
A circuit arrangement for a timed power supply, the circuit arrangement comprising:
- a first supply potential terminal;
- a second supply potential terminal;
- a first output terminal;
- a second output terminal;
- a first charge storage unit;
- an integrated circuit connected to the first and second supply potential terminals and having a switching mechanism comprised of a first semiconductor switch and a second semiconductor switch, a control circuit that controls the switching mechanism by actuating the second semiconductor switch with a ramp signal provided by the control circuit, and a diode;
- a coil having one end connected to the switching mechanism and another end connected to the first output terminal;
- and
- a load connected between the first output terminal and the second output terminal and also connected in parallel with the first charge storage unit.
Dependencies are inferred from the claim text.