The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7478254 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 13, 2009

Filed:

Mar. 28, 2006
Applicant:

Yoshikazu Kawai, Daito, JP;

Inventor:

Yoshikazu Kawai, Daito, JP;

Assignee:

Funai Electric Co., Ltd., Daito-shi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/26 (2006.01);
U.S. Cl.
CPC ...
Abstract

A switching power supply device has a large load power supply line for a CRT circuit, to and from which a dummy resistor for voltage stabilization is connected and disconnected by a switch. In standby state, a control unit turns off the switch to disconnect the dummy resistor from the power supply line. When receiving a power supply ON command input by a user operating a remote control, the control unit turns on the switch to connect the dummy resistor to the power supply line. At a predetermined time after the dummy resistor connection, the control unit makes a regulator active to start providing voltage to a video/audio signal processing circuit with sufficient current providable thereto. This enables to reduce power consumption of the power supply line with the dummy resistor, and to prevent problems caused by insufficient current in transient state from standby state to power supply ON state.


Find Patent Forward Citations

Kawai, Yoshikazu. (2009). Switching power supply device with power on from standby sequence that includes reconnecting dummy resistor to large load power supply line (U.S. Patent No. 7478254). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7478254

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