| PN结对交流信号相位的影响 |
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| 引用本文： | 茅卫红,侯清润,陈宜保,张慧云,陈宏,何元金.PN结对交流信号相位的影响[J].物理实验,2003,23(8):6-8,12. |
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| 作者姓名： | 茅卫红 侯清润 陈宜保 张慧云 陈宏 何元金 |
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| 作者单位： | 清华大学物理系,北京,100084 |
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| 摘 要： | 交流小信号被PN结和电容分压，且电容值远远大于PN结电容值时，大电容两端的电压是很小的交变电压，该信号的相位与PN结的内阻(正向)有关．把PN结当做一个电容和一个电阻并联，可定性解释这种关系．
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| 关 键 词： | PN结 交流信号 相位 电容分压 电容值 交变电压 半导体 |
| 文章编号： | 1005-4642(2003)08-0006-03 |
Influence of PN junction on phase change of alternating current signal |
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| MAO Wei,hong,HOU Qing,run,CHEN Yi,bao,ZHANG,Hui,yun,CHEN Hong,HE Yuan,jin.Influence of PN junction on phase change of alternating current signal[J].Physics Experimentation,2003,23(8):6-8,12. |
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| Authors: | MAO Wei hong HOU Qing run CHEN Yi bao ZHANG Hui yun CHEN Hong HE Yuan jin |
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| Abstract: | The voltage of AC signal is divided into the voltages of PN junction and capacitor, and when the capacitance of the capacitor is far larger than that of the PN junction, the output voltage of the capacitor is very small and its phase is related to the forward resistance of the PN junction. If the PN junction is considered as parallel connection of a capacitor and a resistance, the above mentioned phenomenon can be interpreted qualitatively. |
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| Keywords: | PN junction phase difference AC voltage |
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