Invention Grant
- Patent Title: Method and system for charge compensation for switched-capacitor circuits
- Patent Title (中): 开关电容电路电荷补偿方法及系统
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Application No.: US14601058Application Date: 2015-01-20
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Publication No.: US09537498B2Publication Date: 2017-01-03
- Inventor: Hao Liu , Yongjian Tang
- Applicant: Maxlinear, Inc.
- Applicant Address: US CA Carlsbad
- Assignee: MaxLinear, Inc.
- Current Assignee: MaxLinear, Inc.
- Current Assignee Address: US CA Carlsbad
- Agency: McAndrews, Held & Malloy, Ltd.
- Main IPC: H03M1/12
- IPC: H03M1/12 ; H03M1/06 ; H03H19/00 ; H03M1/66

Abstract:
Methods and systems for charge compensation for switched-capacitor circuits may comprise, in an electronics device comprising a first voltage source, a switched capacitor load, and a switched capacitor compensation circuit: switching a capacitor in the switched capacitor load from a first voltage to a second voltage; providing a charge to the switched capacitor load from the switched capacitor compensation circuit without requiring added charge from the first voltage source. A reference voltage may be generated utilizing the first voltage source. A replica reference voltage for the switched capacitor compensation circuit may be generated utilizing a second voltage source. The replica reference voltage may be equal to the reference voltage. The replica reference voltage may be equal to a supply voltage, VDD, for circuitry in the electronics device. Capacitors may couple outputs of the first and second voltage sources to ground.
Public/Granted literature
- US20150207518A1 Method And System For Charge Compensation For Switched-Capacitor Circuits Public/Granted day:2015-07-23
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