| 降压型DC/DC开关电源中的电压前馈技术 |
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| 引用本文： | 王敬,范哲,冉建桥,索武生,胡永贵.降压型DC/DC开关电源中的电压前馈技术[J].微电子学,2010,40(2). |
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| 作者姓名： | 王敬 范哲 冉建桥 索武生 胡永贵 |
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| 作者单位： | 1. 中国电子科技集团公司,第二十四研究所,重庆,400060
2. 中国电子科技集团公司,第二十四研究所,重庆,400060;模拟集成电路国家级重点实验室,重庆,400060 |
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| 摘 要： | 介绍了一种应用于降压型DC/DC开关电源的电压前馈技术,通过调整内部三角波的中心电压,使PWM信号占空比跟随输入电源电压快速改变。该技术能有效抑制输入电源电压变化对输出电压的影响,增强输出电压的稳定性。
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| 关 键 词： | DC/DC变换器 电压前馈 开关电源 PWM |
Voltage Feedforward Technology for Buck DC/DC SMPS |
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| WANG Jing,FAN Zhe,RAN Jianqiao,SUO Wusheng,HU Yonggui.Voltage Feedforward Technology for Buck DC/DC SMPS[J].Microelectronics,2010,40(2). |
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| Authors: | WANG Jing FAN Zhe RAN Jianqiao SUO Wusheng HU Yonggui |
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| Institution: | 1/a>;2;1.Sichuan Institute of Solid-State Circuits/a>;China Electronics Technology Group Corp./a>;Chongqing 400060/a>;P.R.China/a>;2.National Laboratory of Analog Integrated Circuits/a>;P.R.China |
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| Abstract: | A voltage feedforward technology for buck DC/DC switch-mode power supply(SMPS) controller was described. In this technology,duty cycle of PWM signal changes quickly with input supply voltage by adjusting the center amplitude of the triangular wave This technology can be used to effectively suppress effect of the input supply voltage variation on the output voltage,thus improving its stability. |
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| Keywords: | DC/DC converter Voltage feedforward Switch-mode power supply PWM |
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