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MY194845A - Overvoltage protection - Google Patents

Overvoltage protection

Info

Publication number
MY194845A
MY194845A MYPI2014703047A MYPI2014703047A MY194845A MY 194845 A MY194845 A MY 194845A MY PI2014703047 A MYPI2014703047 A MY PI2014703047A MY PI2014703047 A MYPI2014703047 A MY PI2014703047A MY 194845 A MY194845 A MY 194845A
Authority
MY
Malaysia
Prior art keywords
transistor
bus
zener diode
source
switching mode
Prior art date
Application number
MYPI2014703047A
Inventor
Ching Hau Tan
Original Assignee
Daikin Electronic Devices Malaysia Sdn Bhd
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 Daikin Electronic Devices Malaysia Sdn Bhd filed Critical Daikin Electronic Devices Malaysia Sdn Bhd
Priority to MYPI2014703047A priority Critical patent/MY194845A/en
Priority to PCT/MY2015/000003 priority patent/WO2016060541A1/en
Publication of MY194845A publication Critical patent/MY194845A/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/001—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection limiting speed of change of electric quantities, e.g. soft switching on or off
    • 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
    • G05F1/571—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 overvoltage detector
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
    • H02H9/025—Current limitation using field effect transistors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
    • H03K17/082—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit
    • H03K17/0822—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit in field-effect transistor switches
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
    • H03K2217/0054—Gating switches, e.g. pass gates

Landscapes

  • Engineering & Computer Science (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Electronic Switches (AREA)
  • Protection Of Static Devices (AREA)

Abstract

The present invention provides an overvoltage protection circuitry for a switching mode power supply (SMPS) DC BUS of an electrical appliance which comprises a field-effect transistor (QOI) to function as a switch for controlling electric current and regulating voltage from a power input supply, a zener diode (TVS I), a resistor (R02) for resisting current into the transistor that will gradually tum on the transistor when a sudden input voltage is higher than a threshold voltage of the zener diode, wherein the transistor will conduct current across the drain to the source of the transistor. An electrolytic capacitor (EO1) is added across the transistor's gate and source to form a gate charging circuit to allow the switching mode power supply DC Bus to be slowly charged up.
MYPI2014703047A 2014-10-15 2014-10-15 Overvoltage protection MY194845A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
MYPI2014703047A MY194845A (en) 2014-10-15 2014-10-15 Overvoltage protection
PCT/MY2015/000003 WO2016060541A1 (en) 2014-10-15 2015-01-12 Overvoltage protection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MYPI2014703047A MY194845A (en) 2014-10-15 2014-10-15 Overvoltage protection

Publications (1)

Publication Number Publication Date
MY194845A true MY194845A (en) 2022-12-19

Family

ID=52684613

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2014703047A MY194845A (en) 2014-10-15 2014-10-15 Overvoltage protection

Country Status (2)

Country Link
MY (1) MY194845A (en)
WO (1) WO2016060541A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017201618A1 (en) * 2017-02-01 2018-08-02 Continental Automotive Gmbh DC-DC converter
CN107978281B (en) * 2017-12-12 2020-11-10 北京京东方光电科技有限公司 Backlight module driving method and device and display device
US10847970B2 (en) * 2018-01-19 2020-11-24 Hamilton Sundstrand Corporation System for and method of controlling inrush current between a power source and a load
JP7101016B2 (en) * 2018-03-30 2022-07-14 株式会社デンソーテン Power circuits and electronics
CN108695838A (en) * 2018-05-18 2018-10-23 向玲丽 A kind of power supply or signal transmission plug-in unit
JP7151613B2 (en) * 2019-04-26 2022-10-12 株式会社オートネットワーク技術研究所 Control device
TWI692941B (en) * 2019-05-23 2020-05-01 富創微電子有限公司 Over-voltage protection circuit for usb type-c connecter
EP4135482A1 (en) * 2021-08-13 2023-02-15 Tridonic GmbH & Co. KG Ripple-reducing current limiter for a power supply of a lighting control bus
CN113726316A (en) * 2021-09-01 2021-11-30 深圳中科乐普医疗技术有限公司 MOSFET drive protection circuit and switching power supply system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4588933A (en) * 1984-09-13 1986-05-13 Motorola, Inc. Brushless direct current motor control system with protection circuitry
TW265482B (en) * 1994-06-01 1995-12-11 Siemens Akitengesellschaft
CN100477439C (en) 2005-01-08 2009-04-08 艾默生网络能源系统有限公司 Switching power supply with overvoltage protection and overvoltage protection method thereof
JP4983523B2 (en) * 2007-10-09 2012-07-25 三菱電機株式会社 Power supply circuit and earth leakage circuit breaker using the power supply circuit
JP2010263711A (en) 2009-05-08 2010-11-18 Renesas Electronics Corp Input overvoltage protection circuit with soft start function
US20120112729A1 (en) * 2010-11-08 2012-05-10 Visteon Global Technologies, Inc. In-rush limiter circuit for a driver module
GB2508394A (en) 2012-11-30 2014-06-04 Control Tech Ltd Over-voltage protection for a soft start module with smoothing capacitance

Also Published As

Publication number Publication date
WO2016060541A1 (en) 2016-04-21

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