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Author:

刘素娟 (刘素娟.) | 葛傲冉 (葛傲冉.) | 刘堃 (刘堃.) | 辛子丰 (辛子丰.)

Indexed by:

incoPat

Abstract:

本发明设计了一种基于PN互补型电流补偿电源纹波前馈的LDO电路,主要由基准偏置电路、误差放大器、前馈纹波电路、过冲补偿电路和由功率管和分压采样电路组成的功率输出级构成。基准偏置电路连接误差放大器、前馈纹波电路和过冲补偿电路,提供偏置电压;误差放大器将反馈电压和基准电压进行比较,并将比较结果传输到功率管的栅极,调整其栅极电压的变化,也使得与功率管漏极连接的输出电压得到调整;前馈纹波电路连接功率管的栅极和输出电压,对输出电压的过冲(欠压)状态进行调整,稳定输出,增强瞬态;过冲补偿电路连接输出电压,对输出电压的过冲状态进行调节,稳定输出,增强瞬态。本发明具有较好的电源电压抑制比和很好的稳定性。

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Patent Info :

Type: 发明申请

Patent No.: CN202310068819.0

Filing Date: 2023-01-18

Publication Date: 2023-06-06

Pub. No.: CN116225118A

Applicants: 北京工业大学

Legal Status: 实质审查

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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