FR3117622B1 - Courant d'appel d'au moins un régulateur de tension à faible chute - Google Patents

Courant d'appel d'au moins un régulateur de tension à faible chute Download PDF

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Publication number
FR3117622B1
FR3117622B1 FR2013087A FR2013087A FR3117622B1 FR 3117622 B1 FR3117622 B1 FR 3117622B1 FR 2013087 A FR2013087 A FR 2013087A FR 2013087 A FR2013087 A FR 2013087A FR 3117622 B1 FR3117622 B1 FR 3117622B1
Authority
FR
France
Prior art keywords
low
current
dropout voltage
voltage regulator
inrush current
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.)
Active
Application number
FR2013087A
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English (en)
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FR3117622A1 (fr
Inventor
Alexandre Pons
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STMicroelectronics Grenoble 2 SAS
Original Assignee
STMicroelectronics Grenoble 2 SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by STMicroelectronics Grenoble 2 SAS filed Critical STMicroelectronics Grenoble 2 SAS
Priority to FR2013087A priority Critical patent/FR3117622B1/fr
Priority to US17/453,815 priority patent/US20220187864A1/en
Priority to CN202111506242.4A priority patent/CN114625206A/zh
Publication of FR3117622A1 publication Critical patent/FR3117622A1/fr
Application granted granted Critical
Publication of FR3117622B1 publication Critical patent/FR3117622B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • G05F1/575—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 characterised by the feedback circuit
    • 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
    • G05F1/565—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 sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor
    • G05F1/569—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 sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor for protection
    • G05F1/573—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 sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor for protection with overcurrent detector
    • 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
    • G05F1/468—Regulating voltage or current wherein the variable actually regulated by the final control device is dc characterised by reference voltage circuitry, e.g. soft start, remote shutdown
    • 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
    • G05F1/577—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 for plural loads

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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)
  • Continuous-Control Power Sources That Use Transistors (AREA)

Abstract

Courant d'appel d'au moins un régulateur de tension à faible chute La présente description concerne un dispositif (1) comprenant : N régulateurs de tension à faible chute (LDO1, LDOi, LDON), avec N entier supérieur ou égal à 1 ; un premier circuit (104) configuré pour fournir N tensions de consigne (Vref1, Vrefi, VrefN) aux N régulateurs qui soient proportionnelles à un même premier courant (I1) ; et un deuxième circuit (110) configuré pour fournir le premier courant (I1), dans lequel le premier courant est proportionnel à un courant de référence (Iref) modulé sur la base d'une somme des courants d'appel des N régulateurs. Figure pour l'abrégé : Fig. 1
FR2013087A 2020-12-11 2020-12-11 Courant d'appel d'au moins un régulateur de tension à faible chute Active FR3117622B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR2013087A FR3117622B1 (fr) 2020-12-11 2020-12-11 Courant d'appel d'au moins un régulateur de tension à faible chute
US17/453,815 US20220187864A1 (en) 2020-12-11 2021-11-05 Inrush current of at least one low drop-out voltage regulator
CN202111506242.4A CN114625206A (zh) 2020-12-11 2021-12-10 至少一个低压差电压调节器的涌入电流

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2013087 2020-12-11
FR2013087A FR3117622B1 (fr) 2020-12-11 2020-12-11 Courant d'appel d'au moins un régulateur de tension à faible chute

Publications (2)

Publication Number Publication Date
FR3117622A1 FR3117622A1 (fr) 2022-06-17
FR3117622B1 true FR3117622B1 (fr) 2024-05-03

Family

ID=74347406

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2013087A Active FR3117622B1 (fr) 2020-12-11 2020-12-11 Courant d'appel d'au moins un régulateur de tension à faible chute

Country Status (2)

Country Link
US (1) US20220187864A1 (fr)
FR (1) FR3117622B1 (fr)

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6208127B1 (en) * 1999-11-02 2001-03-27 Maxim Integrated Products, Inc. Methods and apparatus to predictably change the output voltage of regulators
US6559623B1 (en) * 2002-06-01 2003-05-06 Integration Associates Inc. In-rush current control for a low drop-out voltage regulator
US7276885B1 (en) * 2005-05-09 2007-10-02 National Semiconductor Corporation Apparatus and method for power sequencing for a power management unit
US7619397B2 (en) * 2006-11-14 2009-11-17 Texas Instruments Incorporated Soft-start circuit for power regulators
US9519300B2 (en) * 2007-12-20 2016-12-13 Ken Tsz Kin Mok Reducing cross-regulation interferences between voltage regulators
TWM422090U (en) * 2011-08-29 2012-02-01 Richtek Technology Corp Linear regulator and control circuit thereof
CN103092243B (zh) * 2011-11-07 2015-05-13 联发科技（新加坡）私人有限公司 信号产生电路
EP2846213B1 (fr) * 2013-09-05 2023-05-03 Renesas Design Germany GmbH Procédé et appareil permettant de limiter le courant d'appel pour le démarrage d'un régulateur à faible chute de tension
US9774257B2 (en) * 2014-05-23 2017-09-26 Allegro Microsystems, Llc Control circuit for a switching regulator driving an LED load with controlled PWM dimming
JP6740169B2 (ja) * 2017-04-25 2020-08-12 株式会社東芝 電源装置
US10895884B2 (en) * 2017-11-14 2021-01-19 Semiconductor Components Industries, Llc Low dropout (LDO) voltage regulator with soft-start circuit
US10338620B2 (en) * 2017-11-15 2019-07-02 Infineon Technologies Ag Feedback circuit for regulation loops
EP3591494A1 (fr) * 2018-07-02 2020-01-08 Nxp B.V. Limitation de courant pour régulateur de tension
US20200064875A1 (en) * 2018-08-24 2020-02-27 Synaptics Incorporated In-rush current protection for linear regulators
TWI700571B (zh) * 2019-06-04 2020-08-01 瑞昱半導體股份有限公司 參考電壓產生裝置
US20220197321A1 (en) * 2020-12-19 2022-06-23 Intel Corporation Dual loop voltage regulator
CN112650353B (zh) * 2020-12-31 2022-06-14 成都芯源系统有限公司 具有稳定性补偿的线性电压调节器
US11569736B2 (en) * 2021-02-25 2023-01-31 Texas Instruments Incorporated Self-adjusting DC/DC converter soft-start mechanism
US20220397925A1 (en) * 2021-06-10 2022-12-15 Texas Instruments Incorporated Fast soft-start reference current controlled by supply ramp

Also Published As

Publication number Publication date
US20220187864A1 (en) 2022-06-16
FR3117622A1 (fr) 2022-06-17

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