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:
Aug. 20, 2013
Filed:
Apr. 25, 2011
Ken Takeuchi, Tokyo, JP;
Teruyoshi Hatanaka, Tokyo, JP;
Koichi Ishida, Tokyo, JP;
Tadashi Yasufuku, Tokyo, JP;
Makoto Takamiya, Tokyo, JP;
Takayasu Sakurai, Tokyo, JP;
Ken Takeuchi, Tokyo, JP;
Teruyoshi Hatanaka, Tokyo, JP;
Koichi Ishida, Tokyo, JP;
Tadashi Yasufuku, Tokyo, JP;
Makoto Takamiya, Tokyo, JP;
Takayasu Sakurai, Tokyo, JP;
The University of Tokyo, Tokyo, JP;
Abstract
The channel number detecting circuit detects the operation channel number based on the output terminal voltage after falling down when the output terminal voltage falls down during the voltage boosting control, and the switching control circuit generates the control clock signal having the on-time and the off-time adjusted based on the operation channel number and performs the voltage boosting control using generating control clock signal. The voltage boosting control is properly performed based on the operation channel number when the operation channel number increase during performing the voltage boosting control. Thus boosting the power supply voltage up to a second voltage is accomplished.