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:
Mar. 05, 2013
Filed:
Dec. 13, 2010
Yueh-lin Wu, Kwei Shan Township, Taoyuan County, TW;
Yu-ming Sun, Kwei Shan Township, Taoyuan County, TW;
Chi-bin Wu, Kwei Shan Township, Taoyuan County, TW;
Yueh-Lin Wu, Kwei Shan Township, Taoyuan County, TW;
Yu-Ming Sun, Kwei Shan Township, Taoyuan County, TW;
Chi-Bin Wu, Kwei Shan Township, Taoyuan County, TW;
Chung-Hsin Electric and Machinery Manufacturing Corp, Jhonghe, Taipei County, TW;
Abstract
A charge-controlling system and a method therefor are applicable to a backup power system having a fuel-cell-based power supply and a battery. The charge-controlling system includes a bidirectional converter, a feedback circuit, a voltage controller, a PWM generator, a switch unit and an over-charging protection circuit. The feedback circuit generates a feedback signal corresponding to an output voltage of the bidirectional converter. The voltage controller generates a control voltage according to the feedback signal and a constant voltage, such that the PWM generator generates a PWM signal based on the control voltage. The over-charging protection circuit controls operation of the switch unit according to the feedback signal and a saturation voltage of the battery. When the switch unit electrically connects the bidirectional converter and the PWM generator, the bidirectional converter charges the battery with the power generated by the fuel-cell-based power supply according to the PWM signal.