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US 6,665,199 B2Granted
Device supplied with current of limited strength
AssigneeKoninklijke Philips Electronics N.V.
InventorRudy Vanherck
Life of this patent
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Abstract
A device which can be supplied with a given DC voltage and with a current of limited strength via a supply line. A capacitor is connected to an input of the device.
Claims13
A circuit, comprising:
- a DC-DC converter;
- a first circuit path from an output node of the DC-DC-converter to ground, wherein the first circuit path comprises a device, wherein the first circuit path is totally outside of the DC-DC converter, and wherein the device can be supplied with a given DC voltage and with a current of limited strength via a supply line;
- a second circuit path from the output node of the DC-DC-converter to ground, wherein the second circuit path comprises a capacitor, wherein the second circuit path is totally outside of the DC-DC converter, and wherein the capacitor and the device are each directly connected to ground;
- and
- a current limiter coupled to the supply line and connected to an input node of the DC-DC converter.
2 more elements
A circuit, comprising:
- a device which can be supplied with a given DC voltage and with a current of limited strength via a supply line;
- a capacitor connected to an input of the device such that the capacitor and the device are each directly connected to ground;
- a DC-DC converter connected to the input of the device, wherein the capacitor and the device are located in respective parallel circuit paths between an output node of the DC-DC converter and ground;
- a choke coil connected in series with the capacitor;
- a switch connected in series between the choke coil and the capacitor;
- and
- a current limiter connected upstream of the DC-DC converter.
4 more elements
Dependencies are inferred from the claim text.