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:
Sep. 20, 2011
Filed:
Mar. 09, 2009
Takeshi Sato, Tama, JP;
Takeshi Sato, Tama, JP;
Mitsumi Electric Co., Ltd., Tama, JP;
Abstract
A voltage detecting circuit to perform voltage detection by introducing a voltage from a detection node, comprises: a first resistance, a second resistance, and a first switching element, connected in series with each other from the detection node to reference electric potential in order; and a detection circuit for performing a detection operation of a voltage by receiving input of the voltage from a node between the first resistance and the second resistance, wherein a control voltage generated on the basis of the voltage at the detection node is supplied to a control terminal of the first switching element, and the first switching element is turned on when the voltage at the detection node is large, and the first switching element is turned off when the voltage at the detection node is small.