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. 07, 2004
Filed:
Nov. 13, 2003
Edgar Abdoulin, Woodland Hills, CA (US);
International Rectifier Corporation, El Segundo, CA (US);
Abstract
A non-isolated switched-capacitor converter. The output voltage is either fixed or adjustable. A control IC controls first and second semiconductor switches. The converter includes a first diode and a second diode connected in series, the diodes being connected in parallel with the output circuit; the first and second semiconductor switches connected in series; and a flying capacitance connected to the diode junction point. The load capacitance may be charged via the flying capacitance and the second diode in a charge cycle; and the load capacitance may be discharged via the first diode and the flying capacitance in a discharge cycle. The control IC has a high side well powered by the input supply voltage which drives the first semiconductor switch; a floating well powered by the flying capacitor which drives the second semiconductor switch; and a control circuit powered by an output voltage.