Invention Grant
- Patent Title: Circuits and methods for capacitor charging
- Patent Title (中): 电容充电的电路和方法
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Application No.: US14174770Application Date: 2014-02-06
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Publication No.: US09306402B1Publication Date: 2016-04-05
- Inventor: Dean A. Badillo , Mohammad Asmani , Klaus Juergen Schoepf , Reimund Rebel , Peiqing Zhu
- Applicant: Analog Devices, Inc.
- Applicant Address: US MA Norwood
- Assignee: Analog Devices, Inc.
- Current Assignee: Analog Devices, Inc.
- Current Assignee Address: US MA Norwood
- Agency: Wolf, Greenfield & Sacks, P.C.
- Main IPC: H03B5/36
- IPC: H03B5/36 ; H03K3/0231 ; H02J7/00

Abstract:
Circuits for charging capacitors in connection with oscillators are described. The oscillator may include a mechanical resonator. The circuits may include a charging element and a switched capacitor subcircuit to control operation of the charging element, and may be considered a charging circuit in some scenarios. The charging circuits may provide rapid charging of a capacitor to provide a reference voltage to the oscillator.
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