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WO2018134839A1 - Régulateur de courant autopiloté - Google Patents

Régulateur de courant autopiloté Download PDF

Info

Publication number
WO2018134839A1
WO2018134839A1 PCT/IN2017/050596 IN2017050596W WO2018134839A1 WO 2018134839 A1 WO2018134839 A1 WO 2018134839A1 IN 2017050596 W IN2017050596 W IN 2017050596W WO 2018134839 A1 WO2018134839 A1 WO 2018134839A1
Authority
WO
WIPO (PCT)
Prior art keywords
current regulator
laim
regulator according
current
filter
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.)
Ceased
Application number
PCT/IN2017/050596
Other languages
English (en)
Inventor
Bhoopendrakumar SINGH
Rayees K E
Sudeep E
Vinod CHIPPALKATTI
Kanthimathinathan T
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.)
Centum Electronics Ltd
Original Assignee
Centum Electronics 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 Centum Electronics Ltd filed Critical Centum Electronics Ltd
Publication of WO2018134839A1 publication Critical patent/WO2018134839A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/16—Modifications for eliminating interference voltages or currents
    • H03K17/161—Modifications for eliminating interference voltages or currents in field-effect transistor switches
    • H03K17/165—Modifications for eliminating interference voltages or currents in field-effect transistor switches by feedback from the output circuit to the control circuit
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/36—Means for starting or stopping converters

Definitions

  • the invention generally relates to the field of current limiters and particularly to a self-driven current regulator.
  • An inrush current limiter is a component used to limit inrush current to avoid gradual damage to components.
  • the inrush current limiter reduces electromagnetic interference due to current and voltage spikes.
  • One of the systems provides a circuit and method for controlling when a load may be fully energized.
  • the method includes directing electrical current through a current limiting resistor that has a first terminal connected to a source terminal of a field effect transistor F E T, and a second terminal connected to a drain terminal of the F E T.
  • the gate voltage magnitude on a gate terminal of the F ET is varied, whereby current flow through the F E T is increased while current flow through the current limiting resistor is simultaneously decreased.
  • a determination is made as to when the gate voltage magnitude on the gate terminal is equal to or exceeds a predetermined reference voltage magnitude, and the load is enabled to be fully energized when the gate voltage magnitude is equal to or exceeds the predetermined reference voltage magnitude.
  • the disadvantage is that the output is dependent on the load.
  • Another system known in the art uses a NTC Thermistor.
  • the NTC Thermistor requires high cool-down/recovery time. The system does not provide effective inrush current limiting at higher temperature.
  • FIG .1 shows a block diagram of a self-driven current regulator, according to an embodiment of the invention.
  • FIG .2 shows schematic representation of the self-driven current regulator, according to an embodiment of the invention.
  • the self-driven current regulator includes an input circuitry configured to receive an input voltage from a voltage source, an output circuitry configured to supply an output voltage and a current limiter arrangement operably coupled between the input circuitry and the output circuitry.
  • the self-driven current regulator includes an input circuitry configured to receive an input voltage from a voltage source, an output circuitry configured to supply an output voltage and a current limiter arrangement operably coupled between the input circuitry and the output circuitry.
  • FIG .1 shows a block diagram of a self-driven current regulator, according to an embodiment of the invention.
  • the current regulator includes an input 101 configured to receive an input voltage from a voltage source.
  • the input 101 includes an interference circuit
  • the interference circuit is enabled to reduce the electromagnetic interference.
  • the interference circuit includes a plurality of capacitors connected across the input.
  • the input 101 further includes an input voltage sensing circuit that is enabled to monitor the voltage within a desired level.
  • the input voltage sensing circuit includes a switching component and a plurality of passive components. Examples of the switching component include but are not limited to a transistor, a MOS F ET, a BJ T, an IG BT, and/or combinations thereof. In one example of the invention, the switching component is a transistor.
  • E xamples of passive components include but are not limited to a resistor, a capacitor, an inductor, a diode and/or combinations thereof. In one example of the invention, the passive components are at least one combination of the resistor and the diode.
  • the current regulator includes an output 105 configured to supply an output voltage.
  • the output includes a filter circuit. Examples of filter circuit include but are not limited to a capacitive filter, a R C filter, a LC filter, a R LC filter or a combination thereof. In one example of the invention, the filter is capacitive filter.
  • a current limiter arrangement 103 is operably connected in between the input 101 and the output 105.
  • the current limiting arrangement 103 includes a pull down circuit.
  • the pull down circuit includes a switching component.
  • E xamples of the switching component include but are not limited to a transistor, a MOS F ET, a BJ T, an IG BT, and/or combinations thereof.
  • the switching component is transistor.
  • the pull down circuit includes a plurality of passive components.
  • E xamples of passive components include but are not limited to a resistor, a capacitor, an inductor, a diode and/or combinations thereof.
  • the passive components are at least one combination of the resistor and the diode.
  • the current limiting arrangement 103 includes an inrush current limiter.
  • the inrush current limiter includes a R C Time constant. The RC time constant enables the linear rising of the voltage.
  • the inrush current limiter further includes a switching component.
  • the switching component include but are not limited to a transistor, a MOS F E T, a BJ T, an IG BT, S C R and/or combinations thereof.
  • the switching component is a MOS F E T.
  • the inrush current limiter includes a plurality of passive components. Examples of passive components include but are not limited to a resistor, a capacitor, an inductor, a diode and/or combinations thereof. In one example of the invention, the passive components are at least one combination of the resistor and the diode.
  • the current regulator is independent of load.
  • the circuit operates in two modes:
  • Mode 1 As the power is turned on, there is an inrush current spike.
  • the inrush current flows through the interference filter.
  • the interference filter capacitors acts as a short during the initial turn on of the power. There is rise in dv/dt for a short duration.
  • the voltage level is set by the transistor and the diode of the input voltage sensing circuit. When the voltage drop is more than the desired level across the resistor, the transistor of the pull down circuit gets triggered and turned on.
  • the gate voltage of the MOS F E T is pulled down and the inrush current is limited through series resistor.
  • the MOS F E T gets triggered by the pull down circuit pulse.
  • the output is taken out from the output circuitry filter.
  • the interference filter capacitor is charged slightly higher than the level set by the voltage sensing circuit.
  • the gate voltage rises linearly through the R C constant.
  • the MOS F E T is switched
  • the output is taken out from the output circuitry filter with inrush current suppression.
  • the invention provides a self-driven current regulator that is independent of load.
  • the self-driven current regulator as described herein and as illustrated through the accompanying drawings can be used to reduce unwanted E MI noise due to current and voltage spikes.
  • the invention provides continuous plug-in inrush current limiting during the frequent ON/OF F of the input bus.

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Dc-Dc Converters (AREA)

Abstract

L'invention concerne un régulateur de courant autopiloté. Le régulateur de courant autopiloté comprend une circuiterie d'entrée configurée pour recevoir une tension d'entrée provenant d'une source de tension, une circuiterie de sortie configurée pour fournir une tension de sortie et un agencement de limiteur de courant couplé de manière fonctionnelle entre la circuiterie d'entrée et la circuiterie de sortie.
PCT/IN2017/050596 2017-01-17 2017-12-15 Régulateur de courant autopiloté Ceased WO2018134839A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN201741001736 2017-01-17
IN201741001736 2017-01-17

Publications (1)

Publication Number Publication Date
WO2018134839A1 true WO2018134839A1 (fr) 2018-07-26

Family

ID=62908445

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2017/050596 Ceased WO2018134839A1 (fr) 2017-01-17 2017-12-15 Régulateur de courant autopiloté

Country Status (1)

Country Link
WO (1) WO2018134839A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050088157A1 (en) * 2003-10-24 2005-04-28 Rupert Benzinger Electrical circuit for limiting switching-on current
US20070127177A1 (en) * 2005-12-02 2007-06-07 Andrew Benton System and method for conditioning a power supply transmission for supply to a load circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050088157A1 (en) * 2003-10-24 2005-04-28 Rupert Benzinger Electrical circuit for limiting switching-on current
US20070127177A1 (en) * 2005-12-02 2007-06-07 Andrew Benton System and method for conditioning a power supply transmission for supply to a load circuit

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