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一种双极工艺下抗辐照PWM推挽转换电路的研究 被引量：1

The Studies of a Bipolar PWM Push-Pull Converter for Anti-Radiation Application
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摘要 利用双稳态竞争原理,通过状态保持电路和状态转换电路的配合,实现一种基于双极器件的PWM推挽转换电路,该电路对辐照后双极器件的电流增益退化不敏感.采用华越双极2μm工艺进行流片而没有进行任何工艺加固.并在Co-60辐照源,5.6rad（Si）/s剂量率,100krad（Si）总剂量的条件下进行抗辐照实验,结果表明,单管的电流增益退化至55%~65%,而电路功能完全正常,PWM所驱动的功率管在低电平时完全截止,导通时压降仅提升了12%~22%. A push-pull PWM converter based on bipolar process is proposed and verified.The dual outputs status push-pull shifting is realized through the cooperation of a status maintainer and a status switcher.Utilizing the bi-stable race,the circuit is insensitive to the current gain degeneration caused by irradiation.The circuit is manufactured via HUAYUE 2μm bipolar process and irradiated by Co-60 radiation source at the 5.6rad（Si）/s dosage rate and 100krad（Si） total dose.The test results indicate that the circuit is functional correctly while the single NPN device has current gain degeneration of 55%~65%.The bipolar power device driven by converter is fully cut when turned off,and the turn on voltage drop sees 12%~22% increase only.
作者 李俊宏 李平 张国俊 翟亚红 许剑波
机构地区 电子科技大学电子薄膜与集成器件国家重点实验室
出处 《电子学报》 EI CAS CSCD 北大核心 2011年第11期2492-2496,共5页 Acta Electronica Sinica
关键词 推挽驱动 双极 抗辐照 脉冲宽度调制 双稳态 push-pull converter bipolar anti-radiation pulse width modulation（PWM） bi-stable
分类号 TN431.1 [电子电信—微电子学与固体电子学]
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参考文献15

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共引文献12

同被引文献15

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电子学报
2011年 第11期

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