| 陶瓷与有机PTC热敏电阻高频特性研究 |
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| 引用本文： | 吴剑锋,李建清,黄惟一.陶瓷与有机PTC热敏电阻高频特性研究[J].东南大学学报(自然科学版),2002,32(4):631-633. |
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| 作者姓名： | 吴剑锋 李建清 黄惟一 |
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| 作者单位： | 东南大学仪器科学与工程系,南京,210096 |
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| 摘 要： | 简述了陶瓷PTC热敏电阻和有机PTC热敏电阻的特性，介绍了2类PTC热敏电阻的PTC效应原理，并就2类PTC热敏电阻高频特性结合试验测量结果进行了分析，陶瓷PTCR采用的测试信号频率为10kHz-10MHz，有机PTCR所采用的测试信号频率为10kHz-6GHz，结果表明有机PTCR较陶瓷PTCR有良好的高频过流保护特性，这说明有机PTCR更适合用于高频过流保护。
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| 关 键 词： | 热敏电阻 高频特性 陶瓷PTCR 有机PTCR PTC效应 驻波比 正温度系数热敏电阻 |
| 文章编号： | 1001-0505(2002)04-0631-03 |
Research of high frequency characteristic of ceramic PTC resistance and composite PTC resistance |
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| Wu Jianfeng,Li Jianqing,Hang Weiyi.Research of high frequency characteristic of ceramic PTC resistance and composite PTC resistance[J].Journal of Southeast University(Natural Science Edition),2002,32(4):631-633. |
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| Authors: | Wu Jianfeng Li Jianqing Hang Weiyi |
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| Abstract: | The characteristic of both ceramic PTC thermal resistance and composite PTC thermal resistance are summarised. The principles of the PTC effect of two types of PTC thermal resistance are introduced. With the test result, the high frequency characteristics of two kinds of PTC thermal resistance are analyzed.The test signal frequency of ceramic PTCR ranges between 10 kHz-10 MHz,and the test signal frequency of composite PTCR ranges between 10 kHz-6 GHz. The results show that composite PTC thermal resistance have a better characteristic in high frequency over current protect than ceramic PTC thermal resistance,therefore it is more suitable for high frequency over current protect. |
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| Keywords: | ceramic PTCR composite PTCR PTC effect standing wave ratio |
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