| 一种带双重纹波补偿的10MHZ导通时间纹波控制降压型转化器 |
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| 引用本文： | 吕旦竹,虞佳乐,洪志良.一种带双重纹波补偿的10MHZ导通时间纹波控制降压型转化器[J].半导体学报,2013,34(2):025005-7. |
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| 作者姓名： | 吕旦竹 虞佳乐 洪志良 |
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| 作者单位： | State Key Laboratory of ASIC & System,Fudan University |
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| 摘 要： | A 10 MHz ripple-based on-time controlled buck converter is presented.A novel low-cost dual ripple compensation,which consists of coupling capacitor compensation and passive equivalent series resistance compensation, is proposed to achieve a fast load transient response and robust stability simultaneously.Implemented in a 2P4M 0.35μm CMOS process,the converter achieves fix-frequency output with a ripple of below 10 mV and an overshoot of 10 mV at 400 mA step load transient response.With width optimization of the power transistors in an ultra-heavy load and PFM control in a light load,the efficiency stays at over 83%for a load range from 20 mA to 1.5 A and the peak efficiency reaches 90.16%.
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| 关 键 词： | ripple-based on-time control dual ripple compensation high switching frequency buck converter |
A 10 MHz ripple-based on-time controlled buck converter with dual ripple compensation |
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| Lü Danzhu
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Yu Jiale
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Hong Zhiliang.A 10 MHz ripple-based on-time controlled buck converter with dual ripple compensation[J].Chinese Journal of Semiconductors,2013,34(2):025005-7. |
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| Authors: | Lü Danzhu Yu Jiale Hong Zhiliang |
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| Affiliation: | State Key Laboratory of ASIC & System, Fudan University, Shanghai 201203, China |
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| Abstract: | |
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| Keywords: | ripple-based on-time control dual ripple compensation high switching frequency buck converter |
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