| 直流微电流放大器的一种改进电路 |
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| 引用本文： | 吴开兴.直流微电流放大器的一种改进电路[J].河北工程大学学报,1995(4). |
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| 作者姓名： | 吴开兴 |
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| 摘 要： | 本文叙述了用光电耦合器代替直流微电流放大器中的超高电阻负反馈部分，并对其部分电路作了改进，使微电流放大器实现了高速化。文中给出了测量电路，并进行了理论分析和实验，实验结果与理论相符．
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| 关 键 词： | 放大器，光电耦合器，超高电阻，微电流 |
The Improvel Circuit of Very Low Level DC Current Amplidfier |
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| Authors: | Wu Kaixing |
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| Abstract: | This article gives on account of the photo-coupler's replacement of the high feedback resistor in the very low level DC current amplifier, and part of the circuit is improved to achieve the high speed of the very low level amplifier. The measurement circuit is given and it is experimented andf analyzed in theory. The experrment result agrees with the theory. |
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| Keywords: | amplifier photo-couplers high - resistor very low level current |
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