发明申请
US20130135503A1 AMPLIFIER APPARATUS AND METHODS USING VARIABLE CAPACITANCE DEPENDENT ON FEEDBACK GAIN
有权
放大器装置和使用可变电容依赖于反馈增益的方法
- 专利标题： AMPLIFIER APPARATUS AND METHODS USING VARIABLE CAPACITANCE DEPENDENT ON FEEDBACK GAIN
- 专利标题（中）： 放大器装置和使用可变电容依赖于反馈增益的方法
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申请号： US13618156申请日： 2012-09-14
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公开(公告)号： US20130135503A1公开(公告)日： 2013-05-30
- 发明人: Yu Jin Park , Soon Hwa Kang , Min Ho Kwon , Jae Hong Kim , Kwi Sung Yoo , Seung Hyun Lim
- 申请人： Yu Jin Park , Soon Hwa Kang , Min Ho Kwon , Jae Hong Kim , Kwi Sung Yoo , Seung Hyun Lim
- 专利权人： Samsung Electronics Co., Ltd
- 当前专利权人： Samsung Electronics Co., Ltd
- 优先权： KR10-2011-0126262 20111129
- 主分类号： G06G7/18
- IPC分类号： G06G7/18 ; H04N5/335 ; H03F1/34
摘要：
An apparatus includes an operational amplifier circuit comprising at least one operational amplifier and a feedback circuit coupled between the output terminal and input terminal of the operational amplifier circuit and configured to apply a feedback gain to an output signal at the output of the first operational amplifier. The apparatus further includes a variable compensation capacitor coupled to the output terminal of the operational amplifier circuit and configured to vary a capacitance thereof responsive to the feedback gain.
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