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:
Jan. 12, 2016
Filed:
Feb. 25, 2015
Rohm Co., Ltd., Kyoto, JP;
Takashi Miyake, Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
A double-integration type A/D converter for performing A/D conversion by integrating an input voltage and a reference voltage is disclosed. The A/D converter includes an integrator configured to integrate the input voltage and the reference voltage; a first switch configured to relay supply of the input voltage to an input terminal of the integrator; a second switch configured to relay supply of the reference voltage to the input terminal; and a control circuit configured to control switching on and off the first switch and the second switch. The control circuit generates a switching signal that switches on and off the first switch and the second switch individually and a switching signal that switches on and off the first switch and the second switch simultaneously. In addition, superimposition of the input voltage and the reference voltage is integrated when the first switch and the second switch are simultaneously switched on.