US 7,547,989 B2Granted

Control architecture for power supply

AssigneeZippy Technology Corp.

InventorTsung-Chun Chen

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Abstract

The present invention discloses a control structure for a power supply, which comprises: a primary power system, a power switching unit, and at least one switch. The primary power system transforms an external source power into DC powers. The power switching unit is normally electrically connected with the primary power system and normally driven by a DC power output by the primary power system. The switch is installed on a DC power cable supplying DC power to an internal electronic device. Thereby, when the computer is turned off, the present invention will not be affected but can still provide DC powers to external electronic devices. Further, even though the computer is turned off, the present invention can still provide the external electronic devices with the maximum power (when only the primary power system is installed) or the total power (when the primary power system is connected in parallel with a regular power system).

Claims4

Dependent claims

A control structure for a power supply, used to transform an external source power into different voltage level DC powers for internal electronic devices of a computer, and comprising:

a primary power system, transforming said external source power into DC powers;
a power switching unit, normally electrically connected with said primary power system, normally driven by a DC power output by said primary power system, and outputting a computer-turn on signal and a computer-turn off signal;
at least one switch, installed on a DC power cable supplying DC power to said internal electronic device, and electrically connected to said power switching unit, wherein when said switch receives said computer-turn on signal, said switch will be in the closed-circuit state, and DC power will be transmitted to said internal electronic device;
when said switch received said computer-turn off signal, said switch will be in the open-circuit state, and DC power will not be transmitted to said internal electronic device;
and
an external electronic device is connected in parallel with said internal electronic device with a regular power cable beginning from one point of said DC power cable between said primary power system and the corresponding said switch;
thereby, driving power is normally ready for said external electronic device.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 11/540,661Filed 2 Oct 2006
Published: US 2008/0079317 A13 Apr 2008
Granted: 16 Jun 2009
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

G06F 1/26
Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00: power supply means, e.g. regulation thereof
H02J 1/082
Three-wire DC power distribution systems; Systems having more than three wires: dC supplies with two or more different DC voltage levels
G06F
Computing and data processing
H02J
Power supply and charging