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.

Date of Patent:
Aug. 15, 2000

Filed:

Feb. 17, 1999
Applicant:
Inventor:

Muneharu Yamashita, Toyama-ken, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
310319 ;
Abstract

An electric charge type sensor includes a detection element detecting a physical property to be detected and outputting a detection signal in the form of electric charge and an operational amplifier having an output terminal, an inversion input terminal and a non-inversion input terminal. The inversion input terminal is connected to the detection element while the non-inversion input terminal is connected to a reference potential. The electric charge type sensor further comprises a feedback capacitor, a voltage divider and a feedback resistor. The feedback capacitor is connected between the output terminal and the inversion input terminal. The voltage divider is connected to the output terminal for providing a partial voltage of an output voltage at the output terminal. A feedback resistor is connected between the voltage divider and the inversion input terminal.


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