WO2020025271A1 - Dispositif de commutation, système électrique accumulateur d'énergie, dispositif et/ou véhicule et procédé servant à relier une source de tension à une résistance de charge au moyen d'un dispositif de commutation - Google Patents

Dispositif de commutation, système électrique accumulateur d'énergie, dispositif et/ou véhicule et procédé servant à relier une source de tension à une résistance de charge au moyen d'un dispositif de commutation Download PDF

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Publication number
WO2020025271A1
WO2020025271A1 PCT/EP2019/068513 EP2019068513W WO2020025271A1 WO 2020025271 A1 WO2020025271 A1 WO 2020025271A1 EP 2019068513 W EP2019068513 W EP 2019068513W WO 2020025271 A1 WO2020025271 A1 WO 2020025271A1
Authority
WO
WIPO (PCT)
Prior art keywords
transistor
switching device
resistor
voltage source
switch
Prior art date
Application number
PCT/EP2019/068513
Other languages
German (de)
English (en)
Inventor
Holger STEGMUELLER
Thomas Kaiser
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to CN201980050941.7A priority Critical patent/CN112470402A/zh
Publication of WO2020025271A1 publication Critical patent/WO2020025271A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/08—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
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/28—Modifications for introducing a time delay before switching
    • H03K17/284—Modifications for introducing a time delay before switching 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
    • H03K2217/0063—High side switches, i.e. the higher potential [DC] or life wire [AC] being directly connected to the switch and not via the load

Definitions

  • Switching device electrical energy storage system, device and / or vehicle and method for connecting a voltage source to a
  • the present invention relates to a switching device
  • the CN 103474967 A shows a highly integrated battery safety circuit.
  • the essence of the invention in the switching device for the electrically conductive connection of a voltage source to a load resistor is that
  • the voltage source being electrically conductively connectable to the load resistor by means of the first transistor
  • the first transistor being switchable by means of the switch or by means of the second and third transistor,
  • the third transistor being switchable by means of the capacitance
  • the second transistor being arranged such that it switches when the load resistor is short-circuited.
  • the background to the invention is that the switching device can be used to connect the voltage source to the load resistor in an electrically conductive manner. If the load resistor is short-circuited, in addition to the already conducting second transistor, the third transistor becomes conductive and the first transistor is switched, so that the latter is blocked and held locked. The current flow can be interrupted until the switching device is disconnected from the voltage source.
  • the advantage here is that no additional voltage drop occurs due to the short-circuit protection during normal operation of the switching device.
  • the switching device has a first resistor and a second resistor, the switching device being set up to charge the capacitance via the first and second resistor.
  • the capacity can be charged during the operation of the switching device.
  • the first resistor is advantageously connected in parallel with the series circuit.
  • the first resistor limits the voltage between the
  • Control electrode and the source of the first transistor It is also advantageous if the second resistance between one
  • Control electrode of the third transistor and the switch is arranged.
  • the first and second resistors limit the charging current for the capacitance.
  • the second resistor is arranged between the capacitance and the switch.
  • the switching device is advantageously designed such that the third transistor switches after the switch with a time delay, in particular the duration of the
  • the time delay depends on the size of the second resistor and the size of the capacitance. Due to the delayed switching, the
  • Short-circuit protection activated with a time delay.
  • the switching device is thus not susceptible to short-term voltage fluctuations after the switching device is switched on.
  • the first transistor and / or the second transistor and / or the third transistor are designed as field-effect transistors with an insulated control electrode, in particular as p-channel MOSFET transistors.
  • the advantage here is that the switching device can be made compact.
  • the electrical energy storage system has a switching device as described above or according to one of the claims relating to the switching device, and a voltage source.
  • the background to the invention is that, in the event of a short circuit in the load resistance, the switching device blocks and is held locked in a self-retaining manner. The current flow can be interrupted until the switching device is disconnected from the voltage source.
  • the essence of the invention in the device and / or the vehicle is that the device and / or the vehicle is at least one electrical
  • the background to the invention is that, in the event of a short circuit in the load resistance, the switching device blocks and is held locked in a self-retaining manner. The current flow can be interrupted until the switching device is disconnected from the voltage source.
  • Short-circuit protection is activated.
  • the background to the invention is that, in the event of a short circuit in the load resistance, the switching device blocks and is held locked in a self-retaining manner.
  • the short-circuit protection is activated with a time delay. As a result, the switching device is not susceptible to short-term
  • the switching device locks in the event of a short circuit in the load resistor. There is therefore no additional voltage drop due to the short-circuit protection.
  • the switching device advantageously continues to lock, the switching device can be switched off by means of a switch.
  • the advantage here is that the switching device is in a defined state.
  • Fig. 1 is a schematic representation of a circuit diagram of a switching device 1 and
  • Fig. 2 is a timing diagram of the operation of the invention
  • the switching device 1 for the electrically conductive connection of a voltage source V to a load resistor RL has:
  • the transistors are preferably designed as field-effect transistors with an insulated control electrode, in particular as p-channel MOSFET transistors.
  • the first transistor TI is arranged between the voltage source V and the load resistor RL.
  • the source of the first transistor TI is electrically conductively connected to the voltage source V.
  • Transistor TI is electrically connected to the load resistor RL.
  • Control electrode of the first transistor TI is electrically conductively connected to the switch S.
  • a first center tap 2 is arranged between the voltage source V and the source of the first transistor TI.
  • the first center tap 2 connects the
  • Voltage source V and the source of the first transistor TI are electrically conductive with a source of the second transistor T2.
  • a second center tap 3 is arranged between the outflow of the first transistor TI and the load resistor RL.
  • the second center tap 3 connects the
  • a third center tap 4 is arranged between the control electrode of the first transistor TI and the switch S.
  • the third center tap 4 is by means of the third
  • Transistor T3 can be electrically conductively connected to a drain of the second transistor T2.
  • the third center tap 4 is electrically conductively connected to a drain of the third transistor T3.
  • a source of the third transistor T3 is electrically conductively connected to a drain of the second transistor T2.
  • a control electrode of the third transistor T3 is electrically connected to the capacitor C.
  • the second transistor T2 and the third transistor T3 thus form a series connection.
  • the first resistor RI is arranged in parallel with the series circuit comprising the second transistor T2 and the third transistor T3.
  • the first resistor RI connects a fourth center tap 5, which is arranged between the first center tap 2 and the source of the second transistor T2, with a fifth center tap 6, which is arranged between the third center tap 4 and the switch S.
  • a sixth center tap 7 is arranged between the control electrode of the third transistor T3 and the capacitance C.
  • a seventh center tap 8 is arranged between the fifth center tap 6 and the switch S.
  • the second resistor R2 connects the sixth center tap 7 and the seventh center tap 8 in an electrically conductive manner.
  • the control voltage source is arranged between the capacitance C and the switch S.
  • FIG. 2 shows a pulse diagram of the mode of operation of the switching device 1.
  • the supply voltage UV of the voltage source V, the voltage UR across the load resistor RL, the value of the load resistor RL and the control voltage US at the switch S are shown as a function of the time t.
  • the control voltage US at the switch S is negative and is ⁇ 20 V.
  • the supply voltage UV is equal to the voltage UR across the load resistor RL and is 12 V.
  • Load resistance RL is constant.
  • the first transistor TI is conductive and connects the voltage source V in an electrically conductive manner to the load resistor RL.
  • the switch S is opened, the control voltage US at the switch S is positive and is + 20 V.
  • the first transistor Tl blocks. This disconnects the voltage source V from the load resistor RL.
  • the voltage UL across the load resistor RL switches to 0 V with a time delay.
  • the capacitor C is charged via the first resistor RI and the second resistor R2 and the third transistor T3 blocks.
  • the value of the load resistance RL is constant.
  • the switch S is closed, the control voltage US switches to ⁇ 20 V.
  • the first transistor T1 becomes conductive and the voltage UL over the load resistance RL increases in steps from 0 V to 12 V. The value of the
  • Load resistance RL is constant.
  • the second transistor T2 blocks.
  • the third transistor T3 becomes conductive with a time delay, thereby providing short-circuit protection
  • Switching device activated.
  • the duration of the time delay when closing the third transistor T3 is dependent on the choice of the capacitor C and on the choice of the second resistor R2.
  • Load resistance RL is negligible.
  • the switch S is opened after the short circuit across the load resistor RL has been remedied, as a result of which the value of the load resistor RL increases gradually to the original value.
  • the control voltage US at the switch S is positive and is + 20 V.
  • the supply voltage UV remains constant at 12 V.
  • the voltage UL at the load resistor RL is negligible.
  • the switching device 1 thus changes to a switched-off state, the self-holding of the
  • the switch S is closed, the control voltage US at the switch S is negative and is ⁇ 20 V.
  • the first transistor TI becomes conductive and the voltage UL across the load resistor RL increases in steps from 0 V to 12 V.
  • the value of the load resistance RL is constant.
  • the second transistor T2 blocks.
  • the third transistor T3 becomes conductive with a time delay, thereby activating a short-circuit protection of the switching device.
  • an electrical energy store can be used as voltage source V.
  • an electrical energy store becomes a rechargeable one Energy storage understood, especially an electrochemical
  • Energy storage cell and / or an energy storage module having at least one electrochemical energy storage cell and / or an energy storage pack having at least one energy storage module can be designed as a lithium-based battery cell, in particular a lithium-ion battery cell. Alternatively, it is
  • Energy storage cell designed as a lithium-polymer battery cell or nickel-metal hydride battery cell or lead-acid battery cell or lithium-air battery cell or lithium-sulfur battery cell.

Landscapes

  • Protection Of Static Devices (AREA)
  • Secondary Cells (AREA)

Abstract

L'invention concerne un dispositif de commutation (1) servant à relier de manière électroconductrice une source de tension (V) à une résistance de charge (RL), un système électrique accumulateur d'énergie, un dispositif et/ou un véhicule et un procédé servant à relier une source de tension (V) à une résistance de charge (RL) au moyen d'un dispositif de commutation (1). Le dispositif de commutation (1) est caractérisé en ce qu'il comporte : un premier transistor (T1) ; un deuxième transistor (T2) ; un troisième transistor (T3) ; une capacité (C) ; et un commutateur (S). La source de tension (V) peut être reliée au moyen du premier transistor (T1) de manière électroconductrice à la résistance de charge (RL). Le premier transistor (T1) peut être commuté au moyen du commutateur (S) ou au moyen du deuxième et du troisième transistor (T2, T3). Le troisième transistor (T3) peut être commuté au moyen de la capacité (C). Le deuxième transistor (T2) est disposé de telle manière qu'il commute lors d'un court-circuit de la résistance de charge (RL).
PCT/EP2019/068513 2018-07-31 2019-07-10 Dispositif de commutation, système électrique accumulateur d'énergie, dispositif et/ou véhicule et procédé servant à relier une source de tension à une résistance de charge au moyen d'un dispositif de commutation WO2020025271A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201980050941.7A CN112470402A (zh) 2018-07-31 2019-07-10 开关装置、电的储能***、装置和/或车辆和用于将电压源与负载电阻连接起来的方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018212708.5 2018-07-31
DE102018212708.5A DE102018212708A1 (de) 2018-07-31 2018-07-31 Schaltvorrichtung, elektrisches Energiespeichersystem, Vorrichtung und/oder Fahrzeug und Verfahren zum Verbinden einer Spannungsquelle mit einem Lastwiderstand mittels einer Schaltvorrichtung

Publications (1)

Publication Number Publication Date
WO2020025271A1 true WO2020025271A1 (fr) 2020-02-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2019/068513 WO2020025271A1 (fr) 2018-07-31 2019-07-10 Dispositif de commutation, système électrique accumulateur d'énergie, dispositif et/ou véhicule et procédé servant à relier une source de tension à une résistance de charge au moyen d'un dispositif de commutation

Country Status (3)

Country Link
CN (1) CN112470402A (fr)
DE (1) DE102018212708A1 (fr)
WO (1) WO2020025271A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114325466B (zh) * 2021-11-25 2022-11-18 中国大唐集团科学技术研究院有限公司火力发电技术研究院 一种发电机出口互感器匝间短路自检***

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070127180A1 (en) * 2005-12-05 2007-06-07 Yingjie Lin Short circuit protection for vehicle driver circuit
DE102011005708A1 (de) * 2011-03-17 2012-09-20 Sb Limotive Company Ltd. Vorrichtung zum Abschalten eines Leistungs-Transistors
CN103474967A (zh) 2012-06-07 2013-12-25 苏州赛芯电子科技有限公司 一种高集成度电池保护电路
US20150180091A1 (en) 2012-06-12 2015-06-25 Commissariat à I'énergie atomique et aux énergies alternatives Accumulator battery protected against external short-circuits
DE102014205116A1 (de) * 2014-03-19 2015-09-24 Robert Bosch Gmbh Batteriezelleinrichtung mit einer Batteriezelle und einer Strombegrenzungsschaltung und Verfahren zum Begrenzen eines über die Batteriezelle und die Batteriezellanschlüsse der Batteriezelle fließenden Stromes

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3536925A1 (de) * 1985-10-17 1987-04-23 Balluff Gebhard Feinmech Zweidraht-schalter mit einem leistungstranistor
DE19914466C1 (de) * 1999-03-30 2000-09-14 Siemens Ag Treiberstufe zum Schalten einer Last
DE19936857A1 (de) * 1999-08-05 2001-02-15 Siemens Ag Schutzschaltung für ein elektrisches Schaltelement
DE202006002762U1 (de) * 2006-02-21 2006-05-04 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Schaltung zum Schalten eines spannungsgesteuerten Transistors

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070127180A1 (en) * 2005-12-05 2007-06-07 Yingjie Lin Short circuit protection for vehicle driver circuit
DE102011005708A1 (de) * 2011-03-17 2012-09-20 Sb Limotive Company Ltd. Vorrichtung zum Abschalten eines Leistungs-Transistors
CN103474967A (zh) 2012-06-07 2013-12-25 苏州赛芯电子科技有限公司 一种高集成度电池保护电路
US20150180091A1 (en) 2012-06-12 2015-06-25 Commissariat à I'énergie atomique et aux énergies alternatives Accumulator battery protected against external short-circuits
DE102014205116A1 (de) * 2014-03-19 2015-09-24 Robert Bosch Gmbh Batteriezelleinrichtung mit einer Batteriezelle und einer Strombegrenzungsschaltung und Verfahren zum Begrenzen eines über die Batteriezelle und die Batteriezellanschlüsse der Batteriezelle fließenden Stromes

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Publication number Publication date
DE102018212708A1 (de) 2020-02-06
CN112470402A (zh) 2021-03-09

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