| 升压式DC/DC的软启动电路的设计 |
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| 引用本文： | 张艳红,程帅. 升压式DC/DC的软启动电路的设计[J]. 华侨大学学报(自然科学版), 2009, 30(6) |
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| 作者姓名： | 张艳红 程帅 |
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| 作者单位： | 华侨大学,信息科学与工程学院,福建,泉州,362021;华侨大学,信息科学与工程学院,福建,泉州,362021 |
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| 基金项目： | 福建省自由探索基金资助项目(T0850005);;福建省青年人才科研基金资助项目(2007F3066) |
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| 摘 要： | 基于BiCMOS工艺,提出一种用于升压式DC/DC(直流/直流)的脉冲充电方式软启动电路.同时使用分频电路和窄脉冲产生电路,实现对软启动电容充电的极小占空比(0.1%).该电路在不使用片外电容的情况下,保证足够的软启动时间,有效地消除浪涌电流现象.经HSPICE仿真模拟证明,该电路可以使用较小的电容(10 pF),实现较长时间(800μs)的软启动过程.
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| 关 键 词： | 软启动 窄脉冲 分频电路 开关电源 浪涌电流 |
The Design of Boosting Voltage DC/DC Soft-Star Circuit |
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| ZHANG Yan-hong,CHENG Shuai. The Design of Boosting Voltage DC/DC Soft-Star Circuit[J]. Journal of Huaqiao University(Natural Science), 2009, 30(6) |
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| Authors: | ZHANG Yan-hong CHENG Shuai |
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| Affiliation: | College of Information Science and Engineering;Huaqiao University;Quanzhou 362021;China |
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| Abstract: | Based on BiCMOS,a kind of boosting voltage DC/DC pulse-charging soft-star circuit was presented.The small proportion of hold and empty (0.1%) of soft-star capacitance charged was realized using dividing frequency circuit and short-pulse producing circuit Without using exterior capacitance,the circuit ensures the enough time of soft starting and eliminates the surging phenomena.HSPICE simulation proves that the circuit can spend small capacitance (10 pF)to realize the long soft-star process (800 pis). |
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| Keywords: | soft-star short-pulse dividing frequency circuit switching regulator surging phenomena |
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