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:
Sep. 16, 1997
Filed:
Mar. 13, 1996
Cliff Scapellati, Sayville, NY (US);
Spellman High Voltage Electronics Corp., Hauppage, NY (US);
Abstract
A switching power supply for providing a dc voltage with substantially no ripple includes a rectifier for rectifying an ac supply, a filter for filtering the rectifier output and an inductor for current limiting. The filtered output includes a ripple generated by the equivalent series resistance of the filter. This ripple is sensed and used to generate a correcting signal. The correcting signal is arranged and sized so that when it is superimposed on the filtered output, the ripple is substantially eliminated. Preferably the correcting signal is coupled to the inductor.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile