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:
Nov. 06, 2012
Filed:
Sep. 24, 2009
Chun-liang Lin, Hsin-Chu, TW;
Chi-hao Wu, Hsin-Chu, TW;
Ko-ming Lin, Hsin-Chu, TW;
Huang-chi Lin, Hsin-Chu, TW;
Chang-ling Sha, Hsin-Chu, TW;
Jun-shiung Huang, Hsin-Chu, TW;
Chun-Liang Lin, Hsin-Chu, TW;
Chi-Hao Wu, Hsin-Chu, TW;
Ko-Ming Lin, Hsin-Chu, TW;
Huang-Chi Lin, Hsin-Chu, TW;
Chang-Ling Sha, Hsin-Chu, TW;
Jun-Shiung Huang, Hsin-Chu, TW;
Grenergy Opto, Inc., Hsin-Chu, TW;
Abstract
The present invention discloses a safety capacitor discharging method for AC-to-DC converters, wherein the AC-to-DC converters have a safety capacitor connected between two line voltages, the method comprising the steps of: detecting at least one line voltage to generate a line-off signal, wherein the line-off signal is at a first state when the peak voltage of the at least one line voltage is above a reference voltage, and the line-off signal is at a second state when the peak voltage of the at least one line voltage is below the reference voltage; and performing discharge of the safety capacitor by generating a conduction path between two plates of the safety capacitor when the line-off signal is at the second state. The present invention also provides a safety capacitor discharging apparatus for AC-to-DC converters.