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:
Aug. 27, 1996
Filed:
Aug. 30, 1995
Industrial Technology Research Institute, Chutung Hsinchu, TW;
Abstract
A charge mode pulse-width modulation control method and apparatus includes setting up a detector at a primary side of a transformer to detect a current and feeding back the detected current to a current apparatus to provide a current output; an integrator providing charge output with a voltage mode, where the charges are supplied by the integrator which takes the output current of current source to implement mathematical integration, and produce an output voltage and providing the output voltage to a main controller as a reference for deciding whether or not to switch a switch. The control system can prevent the transformer from reaching magnetic saturation and the feedback control current signal from generating noises.