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. 21, 2007
Filed:
Jun. 15, 2005
Takashi Tanimoto, Gifu, JP;
Takashi Tanimoto, Gifu, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
A step-up/step-down circuit can be simplified as compared with conventional circuits by including a step-down unit for receiving a system clock pulse alternately providing a reference voltage (GND) and a system voltage Vin a repeated manner to output a voltage Vlower than the reference voltage (GND) by using a potential difference between the reference voltage (GND) and the system voltage V, a level shift unit for receiving the system clock pulse and the voltage Voutput from the step-down unit to output a pulse signal Vhaving a greater potential difference than the potential difference between the reference voltage (GND) and the system voltage VDD, and a step-up unit for receiving the pulse signal Voutput from the level shift unit to output a voltage Vhigher than the reference voltage (GND).