Invention Grant
US08283934B2 Capacitance sensor for detecting a charge voltage of a multi-capacitor circuit
有权
用于检测多电容电路的充电电压的电容传感器
- Patent Title: Capacitance sensor for detecting a charge voltage of a multi-capacitor circuit
- Patent Title (中): 用于检测多电容电路的充电电压的电容传感器
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Application No.: US12401174Application Date: 2009-03-10
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Publication No.: US08283934B2Publication Date: 2012-10-09
- Inventor: Kazunori Nishizono
- Applicant: Kazunori Nishizono
- Applicant Address: JP Yokohama
- Assignee: Fujitsu Semiconductor Limited
- Current Assignee: Fujitsu Semiconductor Limited
- Current Assignee Address: JP Yokohama
- Agency: Fujitsu Patent Center
- Priority: JP2008-059779 20080310
- Main IPC: G01R27/26
- IPC: G01R27/26 ; G06F3/041
Abstract:
A capacitance sensor includes a first charging voltage detector configured to detect a change in a voltage loaded into a first capacitor between an electrode and a ground terminal a second charging voltage detector configured to detect a change in a voltage loaded into a second capacitor among a plurality of electrodes and a determiner configured to generate a determination signal based on a detection voltage transmitted from each of the first charging voltage detector and second charging voltage detector.
Public/Granted literature
- US20090224775A1 CAPACITANCE SENSOR Public/Granted day:2009-09-10
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