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:
Dec. 06, 2011
Filed:
Oct. 06, 2009
Keigo Ootani, Kanagawa, JP;
Takashi Tahata, Kanagawa, JP;
Keigo Ootani, Kanagawa, JP;
Takashi Tahata, Kanagawa, JP;
Renesas Electronics Corporation, Kawasaki-shi, Kanagawa, JP;
Abstract
A booster circuit includes first and second transistors, a first capacitor, a first drive circuit, a second capacitor, a first controller, and a second controller. The first and second transistors are connected in series between a first voltage and a second voltage. One end of the first capacitor is connected to a connection node between the first transistor and the second transistor. The first drive circuit boosts the voltage at the other end of the first capacitor. The second capacitor is connected between the second voltage and a reference voltage. The first controller controls conduction/non-conduction of the first transistor. The second controller inputs any of the first voltage and the second voltage to the second transistor, and thereby controls conduction/non-conduction of the second transistor. The boost circuit is supplied with the reference voltage, a supply voltage, and a boost clock signal, and generates the second voltage by boosting the supply voltage.