Invention Grant
US08456234B2 Bias current control method and driving circuit for operational amplifier
有权
偏置电流控制方法和运算放大器的驱动电路
- Patent Title: Bias current control method and driving circuit for operational amplifier
- Patent Title (中): 偏置电流控制方法和运算放大器的驱动电路
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Application No.: US13152256Application Date: 2011-06-02
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Publication No.: US08456234B2Publication Date: 2013-06-04
- Inventor: Wei-Hsiang Hung , Chia-Hung Lin
- Applicant: Wei-Hsiang Hung , Chia-Hung Lin
- Applicant Address: TW Hsinchu Science Park, Hsin-Chu
- Assignee: NOVATEK Microelectronics Corp.
- Current Assignee: NOVATEK Microelectronics Corp.
- Current Assignee Address: TW Hsinchu Science Park, Hsin-Chu
- Agent Winston Hsu; Scott Margo
- Priority: TW99146074A 20101227
- Main IPC: H03G3/20
- IPC: H03G3/20 ; H03F3/45
Abstract:
A bias current control method for an operational amplifier is disclosed, which includes detecting a slew rate operating signal, determining signal period length of the slew rate operating signal to generate a determination signal, and generating a high bias modulation signal or a low bias modulation signal to the operational amplifier according to the determination signal and the slew rate operating signal.
Public/Granted literature
- US20120161866A1 BIAS CURRENT CONTROL METHOD AND DRIVING CIRCUIT FOR OPERATIONAL AMPLIFIER Public/Granted day:2012-06-28
Information query
