WO2017219491A1 - Circuit de protection voltmétrique de batterie - Google Patents

Circuit de protection voltmétrique de batterie Download PDF

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Publication number
WO2017219491A1
WO2017219491A1 PCT/CN2016/097333 CN2016097333W WO2017219491A1 WO 2017219491 A1 WO2017219491 A1 WO 2017219491A1 CN 2016097333 W CN2016097333 W CN 2016097333W WO 2017219491 A1 WO2017219491 A1 WO 2017219491A1
Authority
WO
WIPO (PCT)
Prior art keywords
voltage
battery voltage
protection circuit
battery
turned
Prior art date
Application number
PCT/CN2016/097333
Other languages
English (en)
Chinese (zh)
Inventor
朱智会
张万春
Original Assignee
广东森维绿联科技有限公司
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 广东森维绿联科技有限公司 filed Critical 广东森维绿联科技有限公司
Publication of WO2017219491A1 publication Critical patent/WO2017219491A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/24—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to undervoltage or no-voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/18—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteries; for accumulators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the utility model relates to a battery voltage protection circuit, in particular to a built-in battery voltage protection circuit of a portable low power consumption product.
  • the technical problem to be solved by the utility model is to overcome the above technical problems and provide a battery balancing circuit with high reliability.
  • the technical solution of the present invention provides a battery voltage protection circuit including a voltage output terminal VOUT, a voltage input terminal VIN, and a battery voltage determining unit.
  • the battery voltage determining unit includes a low voltage determination switch V1, a high voltage determination switch V2, and a triode.
  • the high voltage determination switch V1 and the low voltage determination switch V2 when the battery voltage reaches the first voltage interval, the high voltage determination switch V1 and the low voltage determination switch V2 are turned on, Q2 is turned on, and VOUT is the battery voltage; when the battery voltage is lower than the first voltage interval and higher than the second voltage interval, The low voltage determination switch V1 is turned on, the high voltage determination switch V2 is turned off, Q2 is turned on, and VOUT is the battery voltage; when the battery voltage is lower than the low voltage determination value, the low voltage determination switch V1 and the high voltage determination switch V2 are turned off, V1 is turned off, and the battery enters the charging stage. When the battery voltage returns to the high voltage determination value, VOUT is the battery voltage.
  • the V1 and V2 are NPN type transistors, which are flow control type originals, and the transistor Q2 is a field effect transistor.
  • the current flowing through the C poles of V1 and V2 is multiplied by the current of the B pole.
  • the V1 and V2 are respectively provided with a bias circuit.
  • the B pole current of the V1 and V2 is one tenth of the bias circuit.
  • the utility model also provides a battery voltage protection circuit, comprising a voltage output terminal VOUT and a voltage input terminal VIN, characterized in that it further comprises a triode Q2, filter capacitors C9, C10, C11, resistors R10, R13, R14, R15, R16.
  • the capacitors C9 and C11 are filter capacitors.
  • the capacitor C10 is used to avoid the conduction and current changes of Q2 when the battery voltage is shaken.
  • the value of the resistor R10 is 100k, and the Q2 conduction speed can be adjusted.
  • the specific advantages of the utility model are as follows: 1. Fully protect the battery, prevent the battery from sinking into a weak discharge area, and provide a strong power region for the subsequent load. 2. Using discrete components, the conduction current can be well adjusted. When different loads are used, different field effect transistors can be replaced, and the protection voltage range requirements can be adjusted accordingly. 3, the use of discrete components, maintenance needs to pay a small price.
  • FIG. 1 is a circuit diagram of a battery voltage determining unit according to an embodiment of the invention
  • NPN type transistor V1, V2 NPN type transistor
  • the utility model relates to a battery voltage protection circuit, which comprises a voltage output terminal VOUT and a voltage input terminal VIN, which is characterized in that it further comprises a triode Q2, a filter capacitor C9, C10, C11, a resistor R10, R13, R14, R15, R16, NPN type transistors V1, V2, the gate of the transistor Q2, one end of the resistors R10, R14, one end of the capacitor C10, C11 are connected to the VIN; the source of the transistor Q2, the capacitor C9 One end, resistor R13 One end is connected to VOUT; the base of the NPN-type transistors V1 and V2 is connected to the drain of Q2, one end of the capacitor C10, and one end of the resistor R10; the collector of the NPN-type transistor V1 is connected to one end of the resistors R13 and R15; The collector of the NPN transistor V2 is connected to one end of the resistors R14 and R16; the emitter of
  • V1 and V2 are battery voltage determination switches, V2 is a high voltage determination switch, and V1 is a low voltage determination switch.
  • V1 is a low voltage determination switch.
  • VOUT is the lithium battery voltage.
  • the battery voltage is gradually discharged, the battery voltage is lower than the first voltage zone value of 4.2v, but V1 is turned on when the second voltage zone value is 3.2v, V2 is turned off, Q2 is turned on, and VOUT is still the battery voltage.
  • the battery voltage is lower than the second voltage zone value of 3.2v, V1, V2, and Q2 are cut off. At this time, the battery VIN can no longer supply power to the subsequent load, only charging, when the battery voltage returns to the first voltage zone value 4.2v again. VOUT continues to provide power for subsequent loads.
  • the V1 and V2 are NPN type triodes, which are flow control type originals.
  • the current flowing through the C poles of V1 and V2 is multiplied by the current of the B pole, usually between 40 and 80 times, and the B pole of V1 and V2.
  • the current is typically one tenth of the bias circuit.
  • I1 is the bias current of V1
  • Select 100k which is related to the bias circuit we set. Another function of R10 can adjust the speed of Q2 conduction.
  • C10 The purpose of C10 is to avoid the conduction and current changes of Q2 when the battery voltage is shaken.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Protection Of Static Devices (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

L'invention concerne un circuit de protection voltmétrique de batterie. Lorsqu'une tension de batterie atteint deux tensions d'intervalle d'une unité de détermination de tension, une détermination de tension correspondante est effectuée, et un commutateur de détermination de basse tension (V1), un commutateur de détermination de haute tension (V2), et un transistor (Q2) réalisent une opération d'activation ou de désactivation pour protéger la batterie en l'empêchant d'atteindre une région de décharge faible.
PCT/CN2016/097333 2016-06-24 2016-08-30 Circuit de protection voltmétrique de batterie WO2017219491A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201620630576.0 2016-06-24
CN201620630576.0U CN206023261U (zh) 2016-06-24 2016-06-24 一种电池电压保护电路

Publications (1)

Publication Number Publication Date
WO2017219491A1 true WO2017219491A1 (fr) 2017-12-28

Family

ID=58243037

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/097333 WO2017219491A1 (fr) 2016-06-24 2016-08-30 Circuit de protection voltmétrique de batterie

Country Status (2)

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CN (1) CN206023261U (fr)
WO (1) WO2017219491A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107896061B (zh) * 2017-11-30 2020-04-21 云顶科技（江苏）有限公司 一种用于新型清洁能源设备中的供电保护系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05174874A (ja) * 1991-12-24 1993-07-13 Matsushita Electric Ind Co Ltd 蓄電池パックの保護装置
CN201319558Y (zh) * 2008-11-24 2009-09-30 中兴通讯股份有限公司 欠压锁定电路
CN105226760A (zh) * 2015-10-28 2016-01-06 福建奥通迈胜电力科技有限公司 一种用于故障指示器通信终端的低功耗低电压关断电路
GB2530494A (en) * 2014-09-19 2016-03-30 Murata Manufacturing Co An undervoltage-lockout circuit
CN205178544U (zh) * 2015-10-28 2016-04-20 福建奥通迈胜电力科技有限公司 一种用于故障指示器通信终端的低功耗低电压关断电路

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05174874A (ja) * 1991-12-24 1993-07-13 Matsushita Electric Ind Co Ltd 蓄電池パックの保護装置
CN201319558Y (zh) * 2008-11-24 2009-09-30 中兴通讯股份有限公司 欠压锁定电路
GB2530494A (en) * 2014-09-19 2016-03-30 Murata Manufacturing Co An undervoltage-lockout circuit
CN105226760A (zh) * 2015-10-28 2016-01-06 福建奥通迈胜电力科技有限公司 一种用于故障指示器通信终端的低功耗低电压关断电路
CN205178544U (zh) * 2015-10-28 2016-04-20 福建奥通迈胜电力科技有限公司 一种用于故障指示器通信终端的低功耗低电压关断电路

Also Published As

Publication number Publication date
CN206023261U (zh) 2017-03-15

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