| 开关电源仿电流控制方法研究 |
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| 引用本文： | 刘江,胡萍,何光俊. 开关电源仿电流控制方法研究[J]. 通信电源技术, 2010, 27(2): 18-22 |
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| 作者姓名： | 刘江 胡萍 何光俊 |
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| 作者单位： | 西南交通大学,电气工程学院,四川,成都,610031 |
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| 摘 要： | 在简要介绍开关电源的电压型控制和电流型控制方法的基础上,详细介绍了仿电流控制方法。分析了仿电流控制方法的工作原理,并对仿电流控制方法和峰值电流控制方法进行了比较。仿电流控制开关变换器的控制电路简单、可靠。仿真结果表明：仿电流控制方法有效地避免了开关管电流前沿尖峰的影响,不需要额外的前沿消隐电路,变换器也能正常工作。
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| 关 键 词： | 开关电源 仿电流控制 脉冲宽度调制 Buck变换器 |
Study on Emulated Current-Mode Control Methods of Switching Mode Power Supply |
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| LIU Jiang,HU Ping,HE Guang-jun. Study on Emulated Current-Mode Control Methods of Switching Mode Power Supply[J]. Telecom Power Technologies, 2010, 27(2): 18-22 |
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| Authors: | LIU Jiang HU Ping HE Guang-jun |
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| Affiliation: | LIU Jiang,HU Ping,HE Guang-jun(College of Electrical Engineering,Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | Based on the brief introduction of switching mode power supply with voltage-mode control and current-mode control,the emulated current mode control method of switching mode power supply is studied in detail and compared with peak current mode control.Simulation results indicate that leading edge spike has no impact on emulated current mode controller which works well without extra circuit. |
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| Keywords: | switching power supply emulated current mode control pulse width modulation buck converter |
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