| 电子辐照对开关电源中功率双极晶体管损耗的影响 |
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| 引用本文： | 王林,王燕. 电子辐照对开关电源中功率双极晶体管损耗的影响[J]. 电子器件, 2011, 34(3): 237-241. DOI: 10.3969/j.issn.1005-9490.2011.03.001 |
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| 作者姓名： | 王林 王燕 |
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| 作者单位： | 清华大学微电子学研究所,北京,100084 |
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| 摘 要： | 功率双极晶体管的损耗是开关电源总损耗中的最多的器件之一,采用10 MeV电子辐照来降低功率双极晶体管的下降延时,以此来降低功率双极晶体管的关断损耗.在一个典型的充电器开关电源中,85 V交流输入电压下,功率双极晶体管总损耗最多降低了42%,系统效率提高了2.1%.
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| 关 键 词： | 开关电源 电子辐照 功率双极晶体管 开关晶体管 关断损耗 |
The Effect of Electron Radiation on the Losses of Power Bipolar Transistor used in Switching Power Supply |
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| WANG Lin,WANG Yan. The Effect of Electron Radiation on the Losses of Power Bipolar Transistor used in Switching Power Supply[J]. Journal of Electron Devices, 2011, 34(3): 237-241. DOI: 10.3969/j.issn.1005-9490.2011.03.001 |
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| Authors: | WANG Lin WANG Yan |
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| Affiliation: | *(Institute of Microelectronics,Tsinghua University,Beijing 100084,China) |
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| Abstract: | The losses of power bipolar transistor are one of the largest parts of the total losses in the switching power supply.We use 10MeV electron irradiation to reduce the turn-off time and the turn-off losses of the power bipolar transistor.In a typical battery charger switching power supply,on the conditon of 85V AC input voltage,the total losses of the power bipolar transistors reduces down to 42%,and the system efficiency is improved by 2.1%. |
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| Keywords: | switching power supply electron irradiation power bipolar transistor switching transistor turn-off losses |
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