DE112022002489T5 - Überstromschutzschaltung und halbleitervorrichtung - Google Patents

Überstromschutzschaltung und halbleitervorrichtung Download PDF

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Publication number
DE112022002489T5
DE112022002489T5 DE112022002489.5T DE112022002489T DE112022002489T5 DE 112022002489 T5 DE112022002489 T5 DE 112022002489T5 DE 112022002489 T DE112022002489 T DE 112022002489T DE 112022002489 T5 DE112022002489 T5 DE 112022002489T5
Authority
DE
Germany
Prior art keywords
voltage
overcurrent protection
transistor
overcurrent
output
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.)
Withdrawn
Application number
DE112022002489.5T
Other languages
German (de)
English (en)
Inventor
Makoto Yasusaka
Takeshi Nagata
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.)
Rohm Co Ltd
Original Assignee
Rohm 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 Rohm Co Ltd filed Critical Rohm Co Ltd
Publication of DE112022002489T5 publication Critical patent/DE112022002489T5/de
Withdrawn legal-status Critical Current

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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
    • G05F1/565—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
    • G05F1/565—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
    • G05F1/5735—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 with foldback current limiting
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
    • G05F3/02—Regulating voltage or current
    • G05F3/08—Regulating voltage or current wherein the variable is DC
    • G05F3/10—Regulating voltage or current wherein the variable is DC using uncontrolled devices with non-linear characteristics
    • G05F3/16—Regulating voltage or current wherein the variable is DC using uncontrolled devices with non-linear characteristics being semiconductor devices
    • G05F3/20—Regulating voltage or current wherein the variable is DC using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations
    • G05F3/26—Current mirrors
    • G05F3/262—Current mirrors using field-effect transistors only

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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)
  • Microelectronics & Electronic Packaging (AREA)
  • Nonlinear Science (AREA)
  • Continuous-Control Power Sources That Use Transistors (AREA)
DE112022002489.5T 2021-06-29 2022-05-23 Überstromschutzschaltung und halbleitervorrichtung Withdrawn DE112022002489T5 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2021107634 2021-06-29
JP2021107635 2021-06-29
JP2021-107635 2021-06-29
JP2021-107634 2021-06-29
PCT/JP2022/021091 WO2023276491A1 (ja) 2021-06-29 2022-05-23 過電流保護回路、半導体装置

Publications (1)

Publication Number Publication Date
DE112022002489T5 true DE112022002489T5 (de) 2024-03-07

Family

ID=84691256

Family Applications (1)

Application Number Title Priority Date Filing Date
DE112022002489.5T Withdrawn DE112022002489T5 (de) 2021-06-29 2022-05-23 Überstromschutzschaltung und halbleitervorrichtung

Country Status (4)

Country Link
US (1) US20240160237A1 (https=)
JP (1) JPWO2023276491A1 (https=)
DE (1) DE112022002489T5 (https=)
WO (1) WO2023276491A1 (https=)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006115646A (ja) 2004-10-15 2006-04-27 Rohm Co Ltd 過電流保護回路および電圧生成回路

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05315852A (ja) * 1992-05-12 1993-11-26 Fuji Electric Co Ltd 電流制限回路および電流制限回路用定電圧源
JP2003216252A (ja) * 2001-11-15 2003-07-31 Seiko Instruments Inc ボルテージレギュレータ
JP2005157743A (ja) * 2003-11-26 2005-06-16 Fujitsu Ten Ltd 負荷駆動装置及び負荷駆動システム
JP2012159870A (ja) * 2011-01-28 2012-08-23 Seiko Instruments Inc ボルテージレギュレータ

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006115646A (ja) 2004-10-15 2006-04-27 Rohm Co Ltd 過電流保護回路および電圧生成回路

Also Published As

Publication number Publication date
WO2023276491A1 (ja) 2023-01-05
JPWO2023276491A1 (https=) 2023-01-05
US20240160237A1 (en) 2024-05-16

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Legal Events

Date Code Title Description
R012 Request for examination validly filed
R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee