| 钛酸钡基PTCR的电压效应测量方法的研究 |
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| 引用本文： | 刘勇,庄志强. 钛酸钡基PTCR的电压效应测量方法的研究[J]. 电子元件与材料, 2002, 21(10): 4-6 |
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| 作者姓名： | 刘勇 庄志强 |
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| 作者单位： | 1. 广东省顺德市协力电子元件有限公司,广东,顺德,528308
2. 广州市华南理工大学材料学院,广东,广州,510640 |
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| 摘 要： | PTC(正温度系数)热敏电阻器存在电压效应,此电压效应对PTC热敏电阻器的工作特性有明显的影响,本文讨论了用“脉冲放电法”测量PTC热敏电阻的电压效应的工作原理。用自行设计的电路测量了PTC热敏电阻器的电压效应。实验证明陶瓷PTCR(正温度系数热敏电阻器)的确存在电阻的电压效应。随着外加电压的升高,PTCR的电阻值明显下降。
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| 关 键 词： | 钛酸钡基PTCR 电压效应 脉冲放电法 冲击电压发生器 |
| 文章编号： | 1001-2028(2002)11-0004-03 |
| 修稿时间： | 2002-07-10 |
Voltage Effect on the BaTiO3-based Ceramic PTC Thermistor and its Measurement |
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| LIU Yong,ZHUANG Zhi-qiang. Voltage Effect on the BaTiO3-based Ceramic PTC Thermistor and its Measurement[J]. Electronic Components & Materials, 2002, 21(10): 4-6 |
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| Authors: | LIU Yong ZHUANG Zhi-qiang |
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| Affiliation: | LIU Yong1,ZHUANG Zhi-qiang2 |
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| Abstract: | The voltage effect on ceramic PTC thermistors is obvious. The principle of pulse discharging method for testing the voltage effect on the BaTiO3-base ceramic PTC thermistors is discussed. The voltage effect on ceramic PTC thermistors was measured by a self-developed circuit. The result has confirmed the existence of the voltage effect. The resistance of ceramic PTC thermistors decreases with the increase of the voltage applied. |
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| Keywords: | BaTiO3 PTC thermistor voltage effect pulse discharge method surge-voltage generator |
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