| 可变增益放大器中失调电压的消除 |
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| 引用本文： | 朱玉田. 可变增益放大器中失调电压的消除[J]. 系统工程与电子技术, 1997, 0(6) |
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| 作者姓名： | 朱玉田 |
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| 作者单位： | 合肥工业大学机械工程系!230009 |
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| 摘 要： | 可变增益放大器中,运放的两输入电阻无法在每一种增益中都保持一致而产生失调电压,本文给出了“直流伺服”消除失调电压的方法,对其作了理论分析和实验验证。
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| 关 键 词： | 放大器 消除 增益 电压 |
Elimination of the Offset Voltage from a Variable Gain Amplifier |
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| Zhu Yutian Hefei Polytechnic University. Elimination of the Offset Voltage from a Variable Gain Amplifier[J]. System Engineering and Electronics, 1997, 0(6) |
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| Authors: | Zhu Yutian Hefei Polytechnic University |
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| Affiliation: | Zhu Yutian Hefei Polytechnic University,230009 |
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| Abstract: | In a variable gain amplifier, offset voltage is produced due to the resistors of the dual inputs can't always trim at every gain-stage. A DC servo method is given to eliminate the offset voltage in this paper. It is analyzed in theories and verified by experiments. |
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| Keywords: | Variable gain Offset voltage elimination. |
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