Invention Grant
- Patent Title: Charge pump regulator circuit for powering a variable load
- Patent Title (中): 用于为可变负载供电的电荷泵调节器电路
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Application No.: US13720589Application Date: 2012-12-19
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Publication No.: US08497670B1Publication Date: 2013-07-30
- Inventor: Stuart B. Molin , Perry Lou , Clint Kemerling
- Applicant: IO Semiconductor, Inc.
- Applicant Address: US CA San Diego
- Assignee: IO Semiconductor, Inc.
- Current Assignee: IO Semiconductor, Inc.
- Current Assignee Address: US CA San Diego
- Agency: The Mueller Law Office, P.C.
- Main IPC: G05F1/00
- IPC: G05F1/00 ; G05F1/10 ; G05F3/02

Abstract:
A charge pump regulator circuit includes a voltage controlled oscillator and a plurality of charge pumps. The voltage controlled oscillator has a plurality of inverter stages connected in series in a ring. A plurality of oscillating signals is generated from outputs of the inverter stages. Each oscillating signal has a frequency or amplitude or both that are variable dependent on a variable drive voltage. Each oscillating signal is phase shifted from a preceding oscillating signal. Each charge pump is connected to a corresponding one of the inverter stages to receive the oscillating signal produced by that inverter stage. Each charge pump outputs a voltage and current. The output of each charge pump is phase shifted from the outputs of other charge pumps. A combination of the currents thus produced is provided at about a voltage level to the load.
Information query
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