公开(公告)号：US20180095521A1

公开(公告)日：2018-04-05

申请号：US15283224

申请日：2016-09-30

Applicant: SYNAPTICS INCORPORATED

Inventor： Aswani TADINADA ,  Timothy L. BLANKENSHIP ,  Prashant SHAMARAO ,  Kaushalendra TRIPATHI ,  Sivan Kumar PANDIAN

IPC: G06F1/32 ,  G06F3/044 ,  G06F3/041

CPC classification number: G06F1/3296 ,  G06F1/3262 ,  G06F3/0416 ,  G06F3/044 ,  G06F2203/04108

Abstract: Embodiments described herein include a method for reducing power consumption in a capacitive touch sensor. The method includes driving the capacitive touch sensor with an operating voltage at a first voltage level. The method also includes entering the capacitive touch sensor into a sleep mode responsive to a lack of touch input to the capacitive touch sensor. The method includes reducing the operating voltage to a second voltage level, and driving the capacitive touch sensor with the operating voltage at the second voltage level.

公开(公告)号：US20180095488A1

公开(公告)日：2018-04-05

申请号：US15283219

申请日：2016-09-30

Applicant: SYNAPTICS INCORPORATED

Inventor： Aswani TADINADA ,  Sivan Kumar PANDIAN ,  Kaushalendra TRIPATHI ,  Srinivasaraju DHENUVAKONDA

IPC: G05F1/575

CPC classification number: G05F1/575

Abstract: A linear voltage regulator and associated integrated circuit and method are disclosed. The linear voltage regulator is operable within a plurality of predefined operational modes, and comprises a pass element configured to generate an output voltage based on a received input voltage. The linear voltage regulator further comprises an error amplifier comprising an output node coupled with a control node of the pass element. The error amplifier is configured to generate a control signal at the output node based on the output voltage and a reference voltage. The linear voltage regulator further comprises a frequency compensation circuit configured to selectively apply an impedance to the output node based on which of the predefined operational modes is selected.