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:
Dec. 28, 1999
Filed:
Feb. 12, 1998
Tsung-Ming Pan, Ping Tung, TW;
Industrial Technology Research Institute, Hsinchu Hsien, TW;
Abstract
Apparatus for controlling pulse density is disclosed herein. The aforementioned apparatus including the following devices: A comparator that is used to compare an input reference voltage and a feedback voltage signal. A math processing device that is used to add the difference between the feedback voltage signal and an analog duty command signal to the analog duty command signal. A shift register that is used to generate a shift timing signal. A weighted averaging device that is used to carry out the operation of the weighted averaging of the feedback voltage signal according to the shift timing signal. A sequential switching device that is used to generate a switch-timing control signal by decoding the feedback voltage signal. A rectifying device that is used to output power with zero-current-switching. The rectifying means is driven by the switch-timing control signal.