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:
Jun. 02, 2015
Filed:
Mar. 30, 2012
Wen-tien Tsai, Pingtung County, TW;
Ching-ran Lee, Kinmen County, TW;
Po-yen Chen, Taipei, TW;
Ching-tsai Pan, Hsinchu, TW;
Wen-Tien Tsai, Pingtung County, TW;
Ching-Ran Lee, Kinmen County, TW;
Po-Yen Chen, Taipei, TW;
Ching-Tsai Pan, Hsinchu, TW;
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, Hsin-Chu, TW;
Abstract
The present disclose relates to a power active buck power factor correction device, comprising: a AC source; a rectifying device coupled to the AC source for receiving and rectifying the AC source so as to generate an input voltage; a first converting device coupled to the assistance device for receiving, transmitting, converting and storing energy; a load coupled to the first converting device; and an assistance device coupled to the first converting device for generating an assistance voltage. Specifically, the polarity of the assistance voltage is same with the input voltage, but is contrary to an output voltage, so that the first converting device may continue to work and receive an input current under the input voltage is smaller than the output voltage while the discontinue time of the input current is getting shorter so as to obtain the perfected power factor correction effect.