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:
Jan. 10, 2006
Filed:
Feb. 19, 2004
Kenichi Kubota, Saitama, JP;
Kenichi Suzuki, Saitama, JP;
Yutaka Sekine, Saitama, JP;
Masaki Oshima, Saitama, JP;
Haruo Watanabe, Saitama, JP;
Hiroyuki Haga, Saitama, JP;
Yoshihiko Kikuchi, Saitama, JP;
Masanori Hayashi, Saitama, JP;
Kenichi Zenta, Saitama, JP;
Yukihiro Nozaki, Saitama, JP;
Kenichi Kubota, Saitama, JP;
Kenichi Suzuki, Saitama, JP;
Yutaka Sekine, Saitama, JP;
Masaki Oshima, Saitama, JP;
Haruo Watanabe, Saitama, JP;
Hiroyuki Haga, Saitama, JP;
Yoshihiko Kikuchi, Saitama, JP;
Masanori Hayashi, Saitama, JP;
Kenichi Zenta, Saitama, JP;
Yukihiro Nozaki, Saitama, JP;
Shindengen Electric Manufacturing Co., Ltd., Tokyo, JP;
Abstract
A switching power supply; wherein a voltage detector is provided at the output of a power supply circuit and connected to the negative input of an error amplifier to amplify the error between detected voltage and reference voltage, the output of said amplifier is connected to the negative input of a first comparator and to the negative input of a second comparator through split resistors, a filter circuit is connected between a control switch and synchronous switch and the output of said filter circuit is connected to a first comparator and a second comparator, wherein said configuration constitues a control means to control the amplitude of the triangular waveform obtained through said filter circuit to be between an input level of said first comparator and an input of said second comparator, whereby the stability of the switching power supply is ensured without lowering the frequency band of said amplified error signal and stable output ripple characteristics can be materialized.