公开(公告)号：US20190121483A1

公开(公告)日：2019-04-25

申请号：US15865785

申请日：2018-01-09

Applicant: SYNAPTICS INCORPORATED

Inventor： Chunbo LIU ,  Koji KISHI ,  Zheming LI ,  Wenwei YANG

IPC: G06F3/041 ,  H02M3/07 ,  G06F3/044

Abstract: Embodiments herein provide a voltage regulation system comprising a charge pump a voltage regulator and a current regulator. The charge pump is configured to output a current signal to a capacitor. The voltage regulator is configured to sample an output of the capacitor, and compare the sampled voltage to a target voltage to generate a control signal. The current regulator is configured to sample a portion of the output current based on the control signal and regulate the current signal outputted by the charge pump.