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, 2014
Filed:
Nov. 13, 2013
Rohm Co., Ltd., Kyoto, JP;
Rohm Co., Ltd., , JP;
Abstract
A current limiting comparator generates a current limiting signal Swhich is asserted when a detection voltage Vs at a detection terminal CS is higher than a predetermined threshold voltage V. A mask signal generating unit generates a mask signal Swhich is asserted after a predetermined delay time Telapses after a switching transistor is turned on. A pulse signal generating unit has: a function (a) in which, when the set signal Sis asserted in a period in which the current limiting signal Sis negated, a pulse signal Sis switched to a first level; and a function (b) in which, when the reset signal Sis asserted, or when the current limiting signal Sis asserted in a period in which the mask signal Sis negated, the pulse signal Sis switched to a second level.