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.:
Date of Patent:
Oct. 25, 2016
Filed:
Oct. 15, 2015
Chicony Power Technology Co., Ltd., New Taipei, TW;
CHICONY POWER TECHNOLOGY CO., LTD., New Taipei, TW;
Abstract
A power supply avoiding an auxiliary boost circuit over voltage includes a direct current to direct current converting circuit, the auxiliary boost circuit and a power factor correction circuit. The auxiliary boost circuit includes a voltage detection unit, a control unit, a management unit and a boost unit. When the voltage detection unit detects that an output voltage of the power factor correction circuit is less than a predetermined voltage, the control unit enters a hold up time mode. Before the hold up time mode is finished, the control unit sends a first synchronization signal to the management unit, so that the management unit sends a second synchronization signal to the control unit, so that the control unit turns off the boost unit before or at the same time the management unit turns off the direct current to direct current converting circuit.