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:
Oct. 11, 2011
Filed:
Jun. 29, 2007
Kyohei Kada, Hikone, JP;
Mikio Itou, Hikone, JP;
Sumio Wada, Hikone, JP;
Shousuke Akisada, Hikone, JP;
Atsushi Isaka, Hikone, JP;
Kenji Obata, Hikone, JP;
Kyohei Kada, Hikone, JP;
Mikio Itou, Hikone, JP;
Sumio Wada, Hikone, JP;
Shousuke Akisada, Hikone, JP;
Atsushi Isaka, Hikone, JP;
Kenji Obata, Hikone, JP;
Panasonic Electric Works Co., Ltd., Kadoma-shi, JP;
Abstract
A switching power supply includes an active device for pulling out a part of a control signal from a control terminal of the switching device in an RCC, and a control signal generation circuit that applies adjustment voltage as ON/OFF time control voltage to a control terminal of the active device. The active device pulls out the control signal so as to decrease or increase an OFF time of the switching device while fixing the ON time of the switching device when the adjustment voltage is decreased or increased in the active region of the active device, respectively. An element of a timing circuit in the RCC pulls out the control signal so as to increase or decrease an ON time of the switching device while fixing the OFF time of the switching device when the adjustment voltage is decreased or increased in the cut-off region of the active device, respectively.