JP2010263711A5 - - Google Patents

Download PDF

Info

Publication number
JP2010263711A5
JP2010263711A5 JP2009113468A JP2009113468A JP2010263711A5 JP 2010263711 A5 JP2010263711 A5 JP 2010263711A5 JP 2009113468 A JP2009113468 A JP 2009113468A JP 2009113468 A JP2009113468 A JP 2009113468A JP 2010263711 A5 JP2010263711 A5 JP 2010263711A5
Authority
JP
Japan
Prior art keywords
overvoltage
switch means
comparator
operation signal
protection circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2009113468A
Other languages
English (en)
Other versions
JP2010263711A (ja
Filing date
Publication date
Application filed filed Critical
Priority to JP2009113468A priority Critical patent/JP2010263711A/ja
Priority claimed from JP2009113468A external-priority patent/JP2010263711A/ja
Priority to US12/772,331 priority patent/US8427802B2/en
Publication of JP2010263711A publication Critical patent/JP2010263711A/ja
Publication of JP2010263711A5 publication Critical patent/JP2010263711A5/ja
Pending legal-status Critical Current

Links

Claims (1)

  1. システムへの過電圧流入を防止してシステムを保護する過電圧保護回路であって、
    入力電圧を供給する入力回路と前記システムとの間に配置されスイッチとして機能する半導体トランジスタで構成された第1スイッチ手段と、
    前記入力電圧を所定の参照電圧と比較して過電圧の発生を判定するとともに過電圧検出の検出がないときは動作信号を出力するコンパレータと、
    前記コンパレータから出力される動作信号をイネーブル信号として起動し、前記第1スイッチ手段のソースゲート間電圧を徐々に拡大させて前記第1スイッチ手段を徐々にオンにするソフトスイッチング制御回路と、を備える
    ことを特徴とする過電圧保護回路。
JP2009113468A 2009-05-08 2009-05-08 ソフトスタート機能付き入力過電圧保護回路 Pending JP2010263711A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2009113468A JP2010263711A (ja) 2009-05-08 2009-05-08 ソフトスタート機能付き入力過電圧保護回路
US12/772,331 US8427802B2 (en) 2009-05-08 2010-05-03 Input overvoltage protection circuit with soft-start function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009113468A JP2010263711A (ja) 2009-05-08 2009-05-08 ソフトスタート機能付き入力過電圧保護回路

Publications (2)

Publication Number Publication Date
JP2010263711A JP2010263711A (ja) 2010-11-18
JP2010263711A5 true JP2010263711A5 (ja) 2012-04-05

Family

ID=43062217

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2009113468A Pending JP2010263711A (ja) 2009-05-08 2009-05-08 ソフトスタート機能付き入力過電圧保護回路

Country Status (2)

Country Link
US (1) US8427802B2 (ja)
JP (1) JP2010263711A (ja)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102468757B (zh) * 2010-11-17 2015-03-25 通嘉科技股份有限公司 控制器、电源供应器与控制方法
CN102147644B (zh) * 2011-05-20 2013-09-25 华硕科技（苏州）有限公司 具有电压保护功能的连接器及主机板
CN103036196B (zh) 2012-12-03 2015-11-25 华为技术有限公司 过压保护装置及方法
US9018931B2 (en) * 2012-12-19 2015-04-28 Solidstate Controls, Llc Control system for providing circuit protection to a power supply
WO2015032079A1 (en) * 2013-09-09 2015-03-12 Texas Instruments Incorporated Intrinsic comparator delay for output clamping circuit
CN104882333B (zh) * 2014-02-28 2019-03-05 北京谊安医疗系统股份有限公司 麻醉机功率继电器容性负载的触点保护电路
US10001794B2 (en) * 2014-09-30 2018-06-19 Analog Devices, Inc. Soft start circuit and method for DC-DC voltage regulator
MY194845A (en) 2014-10-15 2022-12-19 Daikin Electronic Devices Malaysia Sdn Bhd Overvoltage protection
CN105633908B (zh) 2014-10-30 2018-08-31 华硕电脑股份有限公司 电子装置与电源保护方法
US10141735B2 (en) 2016-06-27 2018-11-27 Semiconductor Components Industries, Llc Power conversion circuit with indicator coupled to input terminal to signal condition of the controller
CN109787597A (zh) * 2017-11-13 2019-05-21 恩智浦有限公司 负载开关栅极保护电路
CN108879591B (zh) * 2018-07-18 2020-02-11 深圳市沃特沃德股份有限公司 大电流供电保护电路
US10910820B2 (en) 2018-07-30 2021-02-02 Nxp B.V. Fast over voltage and surge detection for high speed and load switches
US11855451B2 (en) * 2020-09-25 2023-12-26 Analog Devices International Unlimited Company Bootstrapped line-protector CMOS switch
CN112803360A (zh) * 2020-12-31 2021-05-14 广州极飞科技股份有限公司 浪涌保护电路、浪涌保护方法及电池供电电路
US11630471B2 (en) 2021-07-01 2023-04-18 Nxp Usa, Inc. Over voltage detection and protection

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002186174A (ja) * 2000-12-12 2002-06-28 Nec Kofu Ltd 電源回路の保護回路
JP4057260B2 (ja) * 2001-08-07 2008-03-05 株式会社日立製作所 電源回路、電源システム、および電子装置
JP4052998B2 (ja) * 2003-11-25 2008-02-27 シャープ株式会社 電源回路及びそれを用いた電子機器
US7394223B2 (en) * 2004-06-03 2008-07-01 Intersil Americas Inc. Over voltage and over current protection integrated circuit
JP2007143254A (ja) * 2005-11-16 2007-06-07 Sony Corp 過電圧保護回路
JP5095979B2 (ja) * 2006-10-20 2012-12-12 トヨタ自動車株式会社 過電圧保護回路
JP2008160934A (ja) * 2006-12-21 2008-07-10 Sharp Corp 電源回路およびこれを用いた電子機器
JP2008182802A (ja) 2007-01-24 2008-08-07 Matsushita Electric Ind Co Ltd 過電圧保護回路
US8649144B2 (en) * 2007-02-05 2014-02-11 Semiconductor Components Industries, Llc Method of forming an over-voltage protection circuit and structure therefor
US7826190B2 (en) * 2008-03-19 2010-11-02 Universal Scientific Industrial Co., Ltd. Over-voltage protection device

Similar Documents

Publication Publication Date Title
JP2010263711A5 (ja)
WO2012148774A3 (en) Integrated protection devices with monitoring of electrical characteristics
JP2008527963A5 (ja)
JP2013077976A5 (ja)
WO2008021198A3 (en) Improved control circuit for multi-phase converter
WO2009036515A8 (en) Improved start-up detection in a dimmer circuit
JP2009192507A5 (ja)
TW200743293A (en) Controller for DC-DC converter
WO2016202396A8 (en) Bus failure detection transceiver architecture and transceiver operation method
BR102013032807A8 (pt) sistema de proteção, método para operar um sistema de proteção e sistema de circuito
JP2010171627A5 (ja)
EP2584702A3 (en) Control apparatus for switching device
CL2010000547A1 (es) Metodo y circuito de proteccion, que comprende medir un valor asociado a un circuito, comparar el valor con un umbral, poner un interruptor en apagado e incremetar un contador si el valor medido iguala o excede el umbral, y encender el interruptor desues de un tiempo prdeterminado, si le contador es menos que un limite dado.
WO2016007853A3 (en) Dual-comparator circuit with dynamic vio shift protection
KR20170024005A (ko) 스위칭 트랜지스터의 단락 회로 결함을 검출하기 위한 회로 및 방법
MX2022003629A (es) Dispositivo de control de carga para controlar un controlador para una carga de iluminacion.
WO2011098235A3 (de) Modulbypassschaltung für ein photovoltaikmodul
JP2014003594A5 (ja) 半導体装置
IN2013MU01204A (ja)
JP2013047847A5 (ja)
TW200726978A (en) Inverter system and detecting device thereof
JP2017033741A5 (ja)
JP2011179861A (ja) 電圧検出回路
WO2016203235A3 (en) Voltage monitor
JP2010283299A5 (ja) 半導体装置