| 新型降压大电流车用DC/DC变换器 |
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| 引用本文： | 翁浩字,王玉珏. 新型降压大电流车用DC/DC变换器[J]. 汽车电器, 2012, 0(10): 42-44 |
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| 作者姓名： | 翁浩字 王玉珏 |
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| 作者单位： | 河北省汽车工程技术研究中心长城汽车股份有限公司技术中心,河北保定,071000 |
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| 基金项目： | 国家863计划节能与新能源汽车重大专项资助项目(2012AA111202);河北省重大技术创新项目(12213906Z) |
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| 摘 要： | 结合两种脉冲调制的特点,设计一种新型的新能源汽车用降压DC/DC变换器,提高了全负载情况下的效率,并进行多种低功耗设计,特别优化了轻负载时效率。对IGBT模块进行了零电流关断保护设计,控制器的PWM采用自反馈PID控制,PFM采用电压反馈控制,最大电流高达50 A。
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| 关 键 词： | DC/DC变换器 脉冲频率调制 脉冲宽度调制 零电流关断 高转换效率 |
DC/DC Convertor for New Type of Reduction Voltage High Current Vehicle |
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| WENG Hao-yu,WANG Yu-jue. DC/DC Convertor for New Type of Reduction Voltage High Current Vehicle[J]. Auto Electric Parts, 2012, 0(10): 42-44 |
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| Authors: | WENG Hao-yu WANG Yu-jue |
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| Affiliation: | (The Center of Great Wall Motor Co.,Ltd.,Baoding 071000,China) |
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| Abstract: | Based on the characteristics of PWM,a new reduction voltage DC/DC convertor for new energy vehicle has been designed to enhance the efficiency under full load.Several low power designs have been done to optimize the efficiency under light load.The zero-current switching protection is designed to the IGBT module,the PWM of the controller is adopted self-feedback PID control,the PFM is adopted voltage feedback control,and the maximum current goes up to 50A. |
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| Keywords: | DC/DC convertor PFM(Pulse Frequency Modulation) PWM(Pulse Width Modulation) zero-current switching high conversion efficiency |
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