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.

Date of Patent:
Sep. 24, 2013

Filed:

Jun. 15, 2010
Applicants:

Tsun-te Shih, Taipei Hsien, TW;

Yu-yuan Chang, Taipei Hsien, TW;

Yi-hua Wang, Taipei Hsien, TW;

Heng-chia Chang, Taipei Hsien, TW;

Inventors:

Tsun-Te Shih, Taipei Hsien, TW;

Yu-Yuan Chang, Taipei Hsien, TW;

Yi-Hua Wang, Taipei Hsien, TW;

Heng-Chia Chang, Taipei Hsien, TW;

Assignee:

Zippy Technology Corp., Hsin-Tien, Taipei Hsien, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/156 (2006.01); H02M 3/157 (2006.01); H02M 3/158 (2006.01);
U.S. Cl.
CPC ...
Abstract

In a power circuit for reducing standby power consumption, a power supply is defined to include a primary power system and a stationary power system. The stationary power system outputs a stationary power after obtaining an input power. A control unit controls ON/OFF of the primary power system, obtains the stationary power as the required power, and receives a PS ON/OFF signal for triggering the control unit, so that the control unit controls the primary power system to supply a primary output power. The power supply includes a switch unit having two ends connected to a power circuit for outputting the stationary power and a virtual load respectively. The PS ON/OFF signal is provided for controlling the switch unit. If the switch unit does not receive the PS ON/OFF signal, it is OFF in a standby mode to avoid unnecessary power consumption of the virtual load.


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