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:
Apr. 04, 2006
Filed:
Mar. 10, 2005
Akio Iwabuchi, Niiza, JP;
Kazuya Aizawa, Niiza, JP;
Akio Iwabuchi, Niiza, JP;
Kazuya Aizawa, Niiza, JP;
Sanken Electric Co., Ltd., Saitama, JP;
Abstract
The voltage measuring apparatus includes a voltage measuring unitbeing connected to a battery, a voltage converting unitconnected to the voltage measuring unit, and a controllerwhich controls the operation of the voltage measuring unitbased on output of the voltage converting unit. The voltage measuring unitincludes Pch-MOSFET elements Pand Pconstituting a first switch group connected to both terminals of a voltage source Vcn in the battery, a capacitor Cn connected between the elements Pand P, and Nch-MOSFET elements Nand Nconstituting a second switch group connected to both terminals of the capacitor Cn and to both terminals of the voltage output terminal. A source and a back gate of the Nch-MOSFET element Nof the second switch group are connected to each other.