Invention Grant
US08729913B2 Capacitance sensing systems, circuits and methods that include current conveyor based oscillators
有权
电容传感系统，电路和方法，包括当前基于输送机的振荡器
- Patent Title: Capacitance sensing systems, circuits and methods that include current conveyor based oscillators
- Patent Title (中): 电容传感系统，电路和方法，包括当前基于输送机的振荡器
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Application No.: US13185447Application Date: 2011-07-18
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Publication No.: US08729913B2Publication Date: 2014-05-20
- Inventor: Andriy Maharyta
- Applicant: Andriy Maharyta
- Applicant Address: US CA San Jose
- Assignee: Cypress Semiconductor Corporation
- Current Assignee: Cypress Semiconductor Corporation
- Current Assignee Address: US CA San Jose
- Main IPC: G01R27/26
- IPC: G01R27/26
Abstract:
A capacitance sensing system may include a current conveyor circuit coupled to receive induced current from a capacitance sensing structure at a low impedance current input port; and a comparator having an input coupled to a high impedance output port of the current conveyor circuit, and an output coupled to the current conveyor circuit by a feedback path and coupled to drive the capacitance sensing structure to generate the induced current.
Public/Granted literature
- US20120049868A1 CAPACITANCE SENSING SYSTEMS, CIRCUITS AND METHODS THAT INCLUDE CURRENT CONVEYOR BASED OSCILLATORS Public/Granted day:2012-03-01
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