Invention Application
- Patent Title: MULTI-STEP INCREMENTAL SWITCHING SCHEME
- Patent Title (中): 多级增量切换方案
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Application No.: US14870243Application Date: 2015-09-30
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Publication No.: US20160334902A1Publication Date: 2016-11-17
- Inventor: Zheming LI , Saikrishna GANTA , Tae-Song CHUNG , Rafael BETANCOURT , John Michael WEINERTH , Farzaneh SHAHROKHI
- Applicant: SYNAPTICS INCORPORATED
- Main IPC: G06F3/044
- IPC: G06F3/044 ; G06F3/041 ; G06F3/01

Abstract:
A capacitance measurement circuit cancels background capacitance while reducing charge leakage and supply ripples during reset phases and integrate phases. The capacitance measurement circuit operates a first switch into a linear mode causing a first resistance in the first switch, and after a delay, operates a second switch into a saturation mode causing a second resistance in parallel to the first resistance.
Public/Granted literature
- US09740351B2 Multi-step incremental switching scheme Public/Granted day:2017-08-22
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