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. 20, 2016
Filed:
Mar. 20, 2014
Cypress Semiconductor Corporation, San Jose, CA (US);
Toru Miyamae, Aichi, JP;
CYPRESS SEMICONDUCTOR CORPORATION, San Jose, CA (US);
Abstract
A DC-DC converter or the like capable of generating a stable output voltage is provided. A control circuitof a current mode step-down DC-DC converterincludes a slope compensation circuit SC and an offset circuit IFThe slope compensation circuit SC adds an increase gradient mdue to slope compensation to an increase gradient of a coil current waveform Vsense in a range wherein an ON period Ton of a switch SWexceeds ½ of an operating cycle T. An offset circuit IFapplies an offset voltage Voffset which becomes smaller depending on the ON period Ton in excess of ½ of an operating cycle T, to a coil current waveform Vsense.