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:
Apr. 27, 2010
Filed:
Jun. 26, 2007
Toshiyuki Tsuzaki, Chiba, JP;
Michiyasu Deguchi, Chiba, JP;
Toshiyuki Tsuzaki, Chiba, JP;
Michiyasu Deguchi, Chiba, JP;
Seiko Instruments Inc., Chiba, JP;
Abstract
Provided is a switching regulator for preventing generation of an inrush current flowing through a switching element of an output stage, which is provided in the switching regulator. A soft start control circuit () detects a current flowing through a PMOS transistor () serving as a switching element of an output stage. When the detected current is equal to or larger than a current limiting value for limiting the current flowing through the PMOS transistor (), the soft start control circuit () controls the PMOS transistor () to be turned off. Accordingly, it is possible to prevent generation of the inrush current flowing through the PMOS transistor ().