CN114144741A - 一种低压差稳压器 - Google Patents

一种低压差稳压器 Download PDF

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Publication number
CN114144741A
CN114144741A CN201980098699.0A CN201980098699A CN114144741A CN 114144741 A CN114144741 A CN 114144741A CN 201980098699 A CN201980098699 A CN 201980098699A CN 114144741 A CN114144741 A CN 114144741A
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China
Prior art keywords
power tube
coupled
source
circuit
power
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CN201980098699.0A
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熊付荣
康超健
马壮
石玉楠
宋伟
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication of CN114144741A publication Critical patent/CN114144741A/zh
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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
    • G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Power Engineering (AREA)
  • Continuous-Control Power Sources That Use Transistors (AREA)

Abstract

一种低压差稳压器，应用于电源系统，包括：电压源、地端、误差放大电路(320)、控制电路(350)、功率管电路(330)和输出节点。功率管电路(330)包括串联在电压源和地端之间的第一功率管(331)和第二功率管(332)，第一功率管(331)和第二功率管(332)的公共连接点被耦合至输出节点。误差放大电路(320)用于基于输出节点的电压，向第一功率管(331)和第二功率管(332)的栅极提供控制电压。误差放大电路(320)包括第一输出端和第二输出端，第一输出端被耦合至该第一功率管(331)的栅极，第二输出端被耦合至第二功率管(332)的栅极。控制电路(350)包括第三功率管(351)和第四功率管(352)，第三功率管(351)的源极和漏极串接于该第一输出端和第二输出端之间，第四功率管(352)的源极和漏极串接于第一输出端和第二输出端之间。

Description

PCT国内申请，说明书已公开。

Claims (13)

  1. PCT国内申请，权利要求书已公开。
CN201980098699.0A 2019-08-30 2019-08-30 一种低压差稳压器 Pending CN114144741A (zh)

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PCT/CN2019/103781 WO2021035707A1 (zh) 2019-08-30 2019-08-30 一种低压差稳压器

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CN114144741A true CN114144741A (zh) 2022-03-04

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WO (1) WO2021035707A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
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CN116954297A (zh) * 2023-09-19 2023-10-27 深圳市思远半导体有限公司 一种电源选择电路和电源

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* Cited by examiner, † Cited by third party
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CN115202427B (zh) * 2021-04-09 2023-12-12 上海艾为电子技术股份有限公司 一种稳压电路及电源管理芯片
CN113885633B (zh) * 2021-11-02 2023-02-24 中微半导体(深圳)股份有限公司 一种低压差nmos型稳压器及迟滞控制方法
CN114337226A (zh) * 2021-12-31 2022-04-12 上海艾为微电子技术有限公司 功率管的保护电路、电源保护芯片以及设备
TWI811974B (zh) * 2022-01-26 2023-08-11 大陸商星宸科技股份有限公司 具有雙向電流調整的低壓差穩壓器
CN117539318B (zh) * 2024-01-09 2024-03-26 龙骧鑫睿(厦门)科技有限公司 一种高电源抑制比的无片外电容ldo电路

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CN103383581A (zh) * 2012-05-04 2013-11-06 瑞昱半导体股份有限公司 一种具暂态响应增强机制的电压调节装置
US20140062594A1 (en) * 2012-08-30 2014-03-06 Infineon Technologies Ag Chip card
US20160026196A1 (en) * 2014-07-25 2016-01-28 Aeroflex Colorado Springs Inc. Voltage regulator for systems with a high dynamic current range
CN105811905A (zh) * 2014-12-29 2016-07-27 意法半导体研发(深圳)有限公司 低压差放大器

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US7446603B2 (en) * 2006-08-17 2008-11-04 Matsushita Electric Industrial Co., Ltd. Differential input Class D amplifier

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070159146A1 (en) * 2005-12-30 2007-07-12 Stmicroelectronics Pvt. Ltd. Low dropout regulator
CN101552841A (zh) * 2008-03-31 2009-10-07 恩益禧电子股份有限公司 输出放大电路及使用该电路的显示装置的数据驱动器
CN102163399A (zh) * 2010-02-18 2011-08-24 瑞萨电子株式会社 输出电路、数据驱动器及显示装置
CN101893908A (zh) * 2010-07-08 2010-11-24 西安启芯微电子有限公司 灌入/拉出电流快速响应线性电压调节器及调节方法
CN103092241A (zh) * 2011-10-27 2013-05-08 厦门立昂电子科技有限公司 一种混合补偿式高稳定性ldo芯片电路
CN103383581A (zh) * 2012-05-04 2013-11-06 瑞昱半导体股份有限公司 一种具暂态响应增强机制的电压调节装置
US20140062594A1 (en) * 2012-08-30 2014-03-06 Infineon Technologies Ag Chip card
CN103324237A (zh) * 2013-06-09 2013-09-25 中山大学 一种基于电压感应的ldo瞬态响应增强电路
US20160026196A1 (en) * 2014-07-25 2016-01-28 Aeroflex Colorado Springs Inc. Voltage regulator for systems with a high dynamic current range
CN105811905A (zh) * 2014-12-29 2016-07-27 意法半导体研发(深圳)有限公司 低压差放大器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116954297A (zh) * 2023-09-19 2023-10-27 深圳市思远半导体有限公司 一种电源选择电路和电源
CN116954297B (zh) * 2023-09-19 2023-12-15 深圳市思远半导体有限公司 一种电源选择电路和电源

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