EP4194991A4 - Transient boost circuit for ldo, chip system and device - Google Patents

Transient boost circuit for ldo, chip system and device Download PDF

Info

Publication number
EP4194991A4
EP4194991A4 EP20950683.1A EP20950683A EP4194991A4 EP 4194991 A4 EP4194991 A4 EP 4194991A4 EP 20950683 A EP20950683 A EP 20950683A EP 4194991 A4 EP4194991 A4 EP 4194991A4
Authority
EP
European Patent Office
Prior art keywords
ldo
boost circuit
chip system
transient boost
transient
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
EP20950683.1A
Other languages
German (de)
French (fr)
Other versions
EP4194991A1 (en
Inventor
Yunan SHI
Furong XIONG
Xi QU
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.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
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 Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of EP4194991A1 publication Critical patent/EP4194991A1/en
Publication of EP4194991A4 publication Critical patent/EP4194991A4/en
Pending legal-status Critical Current

Links

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

Landscapes

  • 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)
EP20950683.1A 2020-08-26 2020-08-26 Transient boost circuit for ldo, chip system and device Pending EP4194991A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/111524 WO2022041011A1 (en) 2020-08-26 2020-08-26 Transient boost circuit for ldo, chip system and device

Publications (2)

Publication Number Publication Date
EP4194991A1 EP4194991A1 (en) 2023-06-14
EP4194991A4 true EP4194991A4 (en) 2023-09-27

Family

ID=80352315

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20950683.1A Pending EP4194991A4 (en) 2020-08-26 2020-08-26 Transient boost circuit for ldo, chip system and device

Country Status (3)

Country Link
EP (1) EP4194991A4 (en)
CN (1) CN115668092A (en)
WO (1) WO2022041011A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115525087B (en) * 2022-03-29 2023-06-27 南京市智凌芯科技股份有限公司 Quick response low dropout linear voltage regulator

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101048205B1 (en) * 2002-07-31 2011-07-08 페어차일드 세미컨덕터 코포레이션 Capacitively Coupled Current Boost Circuit for Integrated Voltage Regulators
US20170242449A1 (en) * 2016-02-22 2017-08-24 Mediatek Singapore Pte. Ltd. Low-dropout linear regulator
US10545523B1 (en) * 2018-10-25 2020-01-28 Qualcomm Incorporated Adaptive gate-biased field effect transistor for low-dropout regulator
DE102018129910A1 (en) * 2018-11-27 2020-05-28 Intel Corporation Concept for a buffered inverted voltage follower and for a voltage regulator with a low dropout

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7221213B2 (en) * 2005-08-08 2007-05-22 Aimtron Technology Corp. Voltage regulator with prevention from overvoltage at load transients
CN102722207B (en) * 2012-05-28 2014-08-20 华为技术有限公司 Low dropout regulator (LDO)
CN107102666A (en) * 2016-02-22 2017-08-29 联发科技（新加坡）私人有限公司 Low pressure difference linear voltage regulator
CN106774580B (en) * 2017-01-19 2018-06-22 武汉众为信息技术有限公司 A kind of LDO circuit of fast transient response high PSRR
CN110162130B (en) * 2019-05-08 2020-06-02 宁波大学 LDO circuit with enhanced power supply rejection ratio and transient response

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101048205B1 (en) * 2002-07-31 2011-07-08 페어차일드 세미컨덕터 코포레이션 Capacitively Coupled Current Boost Circuit for Integrated Voltage Regulators
US20170242449A1 (en) * 2016-02-22 2017-08-24 Mediatek Singapore Pte. Ltd. Low-dropout linear regulator
US10545523B1 (en) * 2018-10-25 2020-01-28 Qualcomm Incorporated Adaptive gate-biased field effect transistor for low-dropout regulator
DE102018129910A1 (en) * 2018-11-27 2020-05-28 Intel Corporation Concept for a buffered inverted voltage follower and for a voltage regulator with a low dropout

Also Published As

Publication number Publication date
CN115668092A (en) 2023-01-31
WO2022041011A1 (en) 2022-03-03
EP4194991A1 (en) 2023-06-14

Similar Documents

Publication Publication Date Title
EP3993217A4 (en) Power supply system and method for terminal device, chip, and terminal device
EP4123426A4 (en) Wireless charging system, chip, and wireless charging circuit
EP3726896A4 (en) Positioning method, device, and system for terminal device
EP3675558A4 (en) Network switching method, electronic device, and chip subsystem
EP3916512A4 (en) Method and system for detecting open/short circuit on pcb design layout, and electronic device
EP3674883A4 (en) Multiplication circuit, system on chip, and electronic device
EP3845994A4 (en) Ldo, mcu, fingerprint module, and terminal device
EP4099669A4 (en) Method for creating application shortcuts, electronic device, and system
EP3893119A4 (en) System on chip, routing method for access command and terminal
EP3764422A4 (en) Sampling circuit board for battery module, and battery module
EP3855612A4 (en) Multi-level boost circuit, and apparatus and system thereof
EP4130948A4 (en) Electronic device, and control method and control module therefor
EP4064504A4 (en) Charging circuit, charging chip, and electronic device
EP4106479A4 (en) Auxiliary-link-based call compensation system and apparatus, and chip
EP3952457A4 (en) Terminal device, method, and integrated circuit
EP4270151A4 (en) Always on display method, and terminal device and chip
EP4194991A4 (en) Transient boost circuit for ldo, chip system and device
EP4216367A4 (en) Antenna, antenna module, and electronic device
EP4258006A4 (en) Device interaction method, position determining method, electronic device, and chip system
EP3961895A4 (en) Step-down circuit, electronic device, and step-down method
EP3806329A4 (en) Amplifier circuit, chip, and electronic apparatus
EP4220863A4 (en) Antenna, antenna module, and electronic device
EP4246328A4 (en) Storage apparatus, storage control apparatus, and system on chip
EP4187748A4 (en) Circuit for controlling cell, and electronic device
EP4044694A4 (en) Power consumption control method, chip system, and terminal device

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20230307

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Free format text: PREVIOUS MAIN CLASS: G05F0001560000

Ipc: G05F0001575000

A4 Supplementary search report drawn up and despatched

Effective date: 20230824

RIC1 Information provided on ipc code assigned before grant

Ipc: G05F 1/575 20060101AFI20230818BHEP

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)