CN104348233B - Battery protecting circuit and system - Google Patents
Battery protecting circuit and system Download PDFInfo
- Publication number
- CN104348233B CN104348233B CN201410666105.0A CN201410666105A CN104348233B CN 104348233 B CN104348233 B CN 104348233B CN 201410666105 A CN201410666105 A CN 201410666105A CN 104348233 B CN104348233 B CN 104348233B
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- battery
- discharge
- switch pipe
- circuit
- protecting circuit
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00304—Overcurrent protection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00308—Overvoltage protection
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present embodiments relate to a kind of battery protecting circuit and system, including：Functional switch pipe, it is connected between battery core negative pole and charge and discharge electro-detection control circuit, wherein, battery includes battery core and battery protecting circuit；Charger detection circuit, for whether detecting battery by access charger, when being not detected by battery by access charger, output discharge and recharge cut-off signals；When detecting battery by access charger, the first discharge and recharge activation signal is exported；Programmable circuit, for when receiving discharge and recharge cut-off signals, exporting original state signal；When receiving the first discharge and recharge activation signal, original state signal is rewritten as the second discharge and recharge activation signal；Charge and discharge electro-detection control circuit, for when receiving original state signal, closing function switching tube, forbidding battery charging and discharging；When receiving the second discharge and recharge activation signal, opening function switching tube, battery charging and discharging is controlled, and detect the charging and discharging state of battery.Thus, it is possible to solve the problems, such as that existing battery is just depleted using preceding placement a period of time.
Description
Technical field
The present invention relates to battery protection technical field, more particularly to a kind of battery protecting circuit and system.
Background technology
Existing battery typically allows to discharge, therefore battery may contact conductor in transportation and put because of misconnection
Electricity；In addition, battery is mounted to electronic equipment (e.g., the portable electric appts such as bluetooth earphone, smart mobile phone or tablet personal computer)
In, even if electronic equipment is not started shooting, usually because leakage path in electronic equipment be present and consume battery；Furthermore electricity
The situation that key is accessible and opens by mistake machine power consumption may also occur in transportation in sub- equipment.
As can be seen here, the problem of existing battery after placement a period of time before using in the presence of just being depleted, thus cause
When selling electronic equipment, due to the situation that battery has been consumed and cannot be started up, and charging temporarily needs the long period, this influence
The Experience Degree of client.
The content of the invention
The embodiments of the invention provide a kind of battery protecting circuit and system, can solve existing battery using preceding putting
Put the problem of just being depleted after a period of time.
The invention provides a kind of battery protecting circuit, the battery protecting circuit includes：Functional switch pipe, charger detection
Circuit, programmable circuit and charge and discharge electro-detection control circuit；
The functional switch pipe is connected between battery core negative pole and the charge and discharge electro-detection control circuit, wherein, battery bag
Include battery core and battery protecting circuit；
The charger detection circuit, for whether detecting the battery by access charger, when being not detected by the electricity
When pond is by access charger, discharge and recharge cut-off signals are exported；When detecting the battery by access charger, output first is filled
Discharge activation signal；
The programmable circuit, it is connected with the charger detection circuit, the discharge and recharge shut-off is received for working as
During signal, original state signal is exported；When receiving the first discharge and recharge activation signal, the original state signal is changed
It is written as the second discharge and recharge activation signal；
The charge and discharge electro-detection control circuit, is connected with the programmable circuit, and the initial shape is received for working as
During state signal, the functional switch pipe is closed, forbids the battery charging and discharging；When receiving the second discharge and recharge activation signal
When, the functional switch pipe is opened, controls the battery charging and discharging, and detects the charging and discharging state of the battery.
Present invention also offers a kind of battery protection system, the system includes first resistor, second resistance, electric capacity and Ben Fa
Battery protecting circuit described in bright embodiment；
One end of the first resistor is connected with the positive pole of battery, and the other end is connected with one end of the electric capacity, institute
The other end for stating electric capacity is connected with the battery protecting circuit, and the second resistance is connected to the battery core negative pole and the electricity
Between the protection circuit of pond；Wherein, battery includes battery core and battery protecting circuit.
Battery protecting circuit provided in an embodiment of the present invention and system, before use, forbidding battery charging and discharging；And when detection
To battery by after access charger, by sending activation signal come the charging/discharging function of activated batteries, it is possible thereby to avoid battery
Using it is preceding placement a period of time after just depleted the problem of, so as to improve the Experience Degree of user.
Brief description of the drawings
Fig. 1 is the circuit diagram of battery protecting circuit provided in an embodiment of the present invention；
Fig. 2 is a kind of circuit theory diagrams of charger detection circuit provided in an embodiment of the present invention；
Fig. 3 is the circuit theory diagrams of another charger detection circuit provided in an embodiment of the present invention；
A kind of Fig. 4 circuit theory diagrams of programmable circuit provided in an embodiment of the present invention；
The circuit theory diagrams of Fig. 5 another programmable circuits provided in an embodiment of the present invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
For ease of the understanding to the embodiment of the present invention, it is further explained below in conjunction with accompanying drawing with specific embodiment
Bright, embodiment does not form the restriction to the embodiment of the present invention.
The battery protecting circuit and system of the present invention goes in the electronic equipment using lithium battery, such as available for
In the portable electric appts such as bluetooth earphone, smart mobile phone or tablet personal computer.
Fig. 1 is the circuit diagram of battery protecting circuit provided in an embodiment of the present invention, as shown in figure 1, the battery protecting circuit
Including：Functional switch pipe 101, charger detection circuit 102, programmable circuit 103 and charge and discharge electro-detection control circuit 104.
Functional switch pipe 101 is connected between battery core negative pole and charge and discharge electro-detection control circuit 104, wherein, battery includes
Battery core and battery protecting circuit.
Charger detection circuit 102, for whether detecting the battery by access charger, when being not detected by the battery
During by access charger, discharge and recharge cut-off signals are exported；When detecting the battery by access charger, the first charge and discharge is exported
Electrically activate signal.
Programmable circuit 103, it is connected with charger detection circuit 102, the discharge and recharge shut-off letter is received for working as
Number when, export original state signal；When receiving the first discharge and recharge activation signal, the original state signal is rewritten
For the second discharge and recharge activation signal.
Preferably, programmable circuit 103 is disposable programmable circuit, thus is avoided that battery is compiled by mistake again after being activated
Journey.
Charge and discharge electro-detection control circuit 104, is connected with programmable circuit 103, and the original state is received for working as
During signal, closing function switching tube 101, forbid the battery charging and discharging；When receiving the second discharge and recharge cut-off signals,
Closing function switching tube 101, forbid the battery charging and discharging.
The normal work function of charge and discharge electro-detection control circuit 104 includes charging overvoltage detection defencive function, electric discharge overvoltage
Detect defencive function and electric discharge over-current detection defencive function.In some applications, charging over-current detection protection work(can also be included
Defencive function etc. can be detected with charger overvoltage.
The discharge and recharge cut-off signals are that the first output signal CHG is low level signal, the first charge and discharge electrical activation
Signal is the signal that the first output signal CHG is high level；The original state signal is that the second output signal act is low level
Signal；The second discharge and recharge activation signal is the signal that the second output signal act is high level.
Alternatively, functional switch pipe 101 includes the first nmos switch pipe MD and the second nmos switch pipe MC, and the first NMOS is opened
The source electrode for closing pipe MD is connected with the negative pole of battery, the first nmos switch pipe MD drain electrode and the second nmos switch pipe MC drain electrode
It is connected, the second nmos switch pipe MC source electrode is connected to battery core negative pole VM, the first nmos switch pipe MD grid, the 2nd NMOS
Switching tube MC grid is connected with charge and discharge electro-detection control circuit 104 respectively.Wherein, the first nmos switch pipe MD grid with
After charge and discharge electro-detection control circuit 104 connects, the first output voltage DO of charge and discharge electro-detection control circuit 104 can be received；The
After two nmos switch pipe MC grid is connected with charge and discharge electro-detection control circuit 104, charge and discharge electro-detection control circuit can be received
104 the second output voltage CO.
After battery is assembled for the first time, before not accessing charger (namely before being not used), charger detection
It is low level signal that circuit 102, which exports the first output signal CHG, and it is low that programmable circuit 103, which exports the second output signal act,
The signal (i.e. original state signal) of level, the second output signal act are that low level signal can control charge and discharge electro-detection control
Circuit 104 processed is stopped, and charge and discharge electro-detection control circuit 104 is closed as far as possible and reduces its current drain.It is preferred that
Ground, above-mentioned current drain are less than 0.1 milliampere by smaller.It can also be controlled in addition, the second output signal act is low level signal
First output voltage DO of charge and discharge electro-detection control circuit 104 is not less than ground voltage (G node voltages), the first nmos switch pipe MD
In cut-off state, the cut-out to discharge path is achieved in that, forbids battery discharge, after forbidding battery discharge, even if battery is deposited
In discharge path, the energy content of battery can not be also consumed；It can also be controlled likewise, the second output signal act is low level signal
Second output voltage CO of charge and discharge electro-detection control circuit 104 is not less than the input terminal voltage of charger detection circuit, i.e. VMI electricity
Pressure, the second nmos switch pipe MC are in cut-off state, are achieved in that the cut-out to charging path, forbid battery to charge.
After battery after assembling accesses charger for the first time, charger detection circuit 102 detects that battery is accessed and filled
During electrical equipment, it exports the signal that the first output signal CHG is high level, namely its first output signal CHG is changed into from low level
High level, the original state signal that is exported to it of control programmable circuit 103 are rewritten, by its second output signal act by
Low level is rewritten as high level, and the second output signal act is that the signal of high level can activate charge and discharge electro-detection control circuit
104.In addition, the signal that the second output signal act is high level can also control the first defeated of charge and discharge electro-detection control circuit 104
Go out voltage DO and be less than ground voltage, the first nmos switch pipe MD conductings are achieved in that the connection to discharge path, and control battery is put
Electricity, and detect the discharge condition of battery；Likewise, the signal that the second output signal act is high level can also control discharge and recharge
Second output voltage CO of detection control circuit 104 is less than VMI voltages, the second nmos switch pipe MC conductings, is achieved in that to putting
The connection of electric pathway, control battery charging, and detect the charged state of battery.
Fig. 2 is a kind of circuit theory diagrams of charger detection circuit provided in an embodiment of the present invention, as shown in Fig. 2 this fills
Electrical Testing circuit includes：Current source I201, the 3rd nmos switch pipe MN202 and phase inverter INV203.Current source I201's is defeated
Entering end input analog power voltage VDDA, current source I201 output end is connected with the 3rd nmos switch pipe MN202 drain electrode,
3rd nmos switch pipe MN202 source electrode input VMI voltages, grid input ground voltage, drain electrode and phase inverter INV203 input
End is connected, and phase inverter INV203 output end exports the first output signal CHG.
When in Fig. 2, not accessing before charger, namely being not detected by battery by access charger, VMI voltages are not less than
Ground voltage, so the 3rd nmos switch pipe MN202 is in cut-off state, analog power voltage VDDA is after current source I201 to anti-
Phase device INV203 input, namely phase inverter INV203 input signal is high level, then its first output signal CHG is low
Level；For the first time after access charger, namely when detecting battery by access charger, due to when battery is initial in forbidding filling
The state of electric discharge, the voltage of GND can be electrically charged device and be pulled low to less than ground voltage, cause VMI voltages also below ground voltage,
So the 3rd nmos switch pipe MN202 is turned on, it is changed into low level so as to phase inverter INV203 input signal, its first output letter
Number CHG is changed into high level.
Preferably, above-mentioned current source I201 current value is 0.1 milliampere.
Fig. 3 is the circuit theory diagrams of another charger detection circuit provided in an embodiment of the present invention, as shown in figure 3, should
Charger detection circuit includes：Resistance R301, the 3rd nmos switch pipe MN302 and phase inverter INV303.Resistance R301 one end
Analog power voltage VDDA is inputted, the other end is connected with the 3rd nmos switch pipe MN202 drain electrode, the 3rd nmos switch pipe
MN302 source electrode input VMI voltages, grid input ground voltage, drain electrode are connected with phase inverter INV303 input, phase inverter
INV303 output end exports the first output signal CHG.
In Fig. 3, its first output signal CHG also can according to whether access charger and be changed into low and high level accordingly, its
In the first output signal CHG variation pattern it is similar to the variation pattern of the first output signal CHG in Fig. 2, therefore not to repeat here.
Preferably, above-mentioned resistance R301 resistance value is more than 1 megohm.
Fig. 4 a kind of circuit theory diagrams of programmable circuit provided in an embodiment of the present invention, as shown in figure 4, the programmable electricity
Road includes：Switching tube K401, trim unit F 402, reverser INV403 and current source I404.Switching tube K401 one end is with repairing
Unit F 402 is adjusted to be connected, other end input VMI voltages, control terminal is connected with charger detection circuit, trims unit F 402
One end input analog power voltage VDDA, the other end is connected with reverser INV403 input, switching tube K401 one end
Connect, be grounded after connection by current source I404, reverser INV404 output end exports the second output signal act.
In Fig. 4, before not accessing charger (namely before being not used), charging that switching tube K401 control terminal receives
First output signal CHG of device detection circuit is low level, namely receives discharge and recharge cut-off signals, and switching tube K401 keeps closing
It is disconnected, trim unit F 402 and show as short circuit, analog power voltage VDDA is defeated to phase inverter INV403 after trimming unit F 402
Enter end, namely phase inverter INV403 input signal is high level, then the second output signal act is low level；Access for the first time
After charger, the first output signal CHG of the charger detection circuit that switching tube K401 control terminal receives is high level,
The first discharge and recharge activation signal is received, switching tube K401 conductings, high current will be from VDDA by trimming unit F 402, and passes through
Cross switching tube K401 and flow to VMI, cause to trim unit F 402 and blown by excessive electric current, form open circuit, reverser INV403's
Input signal is changed into low level, then its second output signal act is changed into high level.
It is it should be noted that above-mentioned trim after unit F 402 is blown, then no longer valid, namely battery in the present invention is only
It can be activated once, thus, it is possible to by judging whether battery was activated, to judge whether the battery is previously used.
Preferably, above-mentioned current source I404 current value is 0.1 milliampere.
The circuit theory diagrams of Fig. 5 another programmable circuits provided in an embodiment of the present invention, as shown in figure 5, this is programmable
Circuit includes：Switching tube K501, trim unit F 502, reverser INV503 and resistance R504.Switching tube K501 one end is with repairing
Unit F 502 is adjusted to be connected, other end input VMI voltages, control terminal is connected with charger detection circuit, trims unit F 502
One end input analog power voltage (VDDA), the other end is connected with reverser INV503 input, and passes through resistance
R504 is grounded, and reverser INV503 output end exports the second output signal act.
In Fig. 5, its second output signal act also can according to whether access charger and be changed into low and high level accordingly, its
In the second output signal act variation pattern it is similar to the variation pattern of the second output signal act in Fig. 4, therefore not to repeat here.
Preferably, above-mentioned resistance R504 resistance value is more than 1 megohm.In addition, the present invention can also provide a kind of battery
Protection system, the system include the battery protection electricity described in first resistor R1, second resistance R2, electric capacity C1 and above-described embodiment
Road, first resistor R1 one end are connected with the positive pole of battery, and the other end is connected with electric capacity C1 one end, and electric capacity C1's is another
End is connected with battery protecting circuit, and second resistance R2 is connected between battery core negative pole and battery protecting circuit, wherein, battery bag
Include battery core and battery protecting circuit.
To sum up, battery protecting circuit provided in an embodiment of the present invention and system, before use, forbidding battery charging and discharging；And
After battery is detected by access charger, by sending activation signal come the charging/discharging function of activated batteries, it is possible thereby to keep away
Exempt from battery using it is preceding placement a period of time after just depleted the problem of, so as to improve the Experience Degree of user.It is further, since electric
Whether pond is not using being activated preceding, it is possible to be activated judgement electronic equipment and battery by judging battery
Whether it is new product.
Above-described embodiment, the purpose of the present invention, technical scheme and beneficial effect are carried out further
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., all should include
Within protection scope of the present invention.
Claims (11)
1. a kind of battery protecting circuit, it is characterised in that the battery protecting circuit includes：Functional switch pipe, charger detection
Circuit, programmable circuit and charge and discharge electro-detection control circuit；
The functional switch pipe is connected between battery core negative pole and the charge and discharge electro-detection control circuit, wherein, battery includes institute
State battery core and the battery protecting circuit；
The charger detection circuit, for whether detecting the battery by access charger, when being not detected by the battery quilt
When accessing charger, discharge and recharge cut-off signals are exported；When detecting the battery by access charger, the first discharge and recharge is exported
Activation signal；
The programmable circuit, it is connected with the charger detection circuit, the discharge and recharge cut-off signals is received for working as
When, export original state signal；When receiving the first discharge and recharge activation signal, the original state signal is rewritten as
Second discharge and recharge activation signal；
The charge and discharge electro-detection control circuit, is connected with the programmable circuit, and the original state letter is received for working as
Number when, close the functional switch pipe, forbid the battery charging and discharging；When receiving the second discharge and recharge activation signal,
The functional switch pipe is opened, controls the battery charging and discharging, and detects the charging and discharging state of the battery.
2. battery protecting circuit according to claim 1, it is characterised in that the functional switch pipe is opened including the first NMOS
Close pipe (MD) and the second nmos switch pipe (MC)；
The source electrode of the first nmos switch pipe (MD) is connected with the negative pole of the battery, the first nmos switch pipe (MD)
Drain electrode be connected with the drain electrode of the second nmos switch pipe (MC), the source electrode of the second nmos switch pipe (MC) is connected to
The battery core negative pole, the grid of the first nmos switch pipe (MD), the second nmos switch pipe (MC) grid respectively with
The charge and discharge electro-detection control circuit is connected.
3. battery protecting circuit according to claim 1 or 2, it is characterised in that the charger detection circuit includes：The
One current source (I1), the 3rd nmos switch pipe (MN1) and the first phase inverter (INV1)；
The input input analog power voltage (VDDA) of first current source (I1), the output of first current source (I1)
End is connected with the drain electrode of the 3rd nmos switch pipe (MN1), the source electrode input charging of the 3rd nmos switch pipe (MN1)
The input terminal voltage (VMI) of device detection circuit, the grid input ground voltage of the 3rd nmos switch pipe (MN1), the described 3rd
The drain electrode of nmos switch pipe (MN1) is connected with the input of first phase inverter (INV1), first phase inverter
(INV1) output end exports the first output signal (CHG).
4. battery protecting circuit according to claim 3, it is characterised in that the current value of first current source (I1) is
0.1 milliampere.
5. battery protecting circuit according to claim 3, it is characterised in that first current source (I1) is replaced with
Three resistance (R3).
6. battery protecting circuit according to claim 5, it is characterised in that the resistance value of the 3rd resistor (R3) is more than
1 megohm.
7. battery protecting circuit according to claim 3, it is characterised in that the programmable circuit includes：Switching tube
(K1) unit (F1), the second phase inverter (INV2) and the second current source (I2), are trimmed；
One end of the switching tube (K1) is connected with the unit (F1) that trims, other end input VMI voltages, the switching tube
(K1) control terminal is connected with the charger detection circuit, one end input analog power voltage for trimming unit (F1)
(VDDA), the other end is connected with the input of second phase inverter (INV2), one end of the switching tube (K1), after connection
It is grounded by second current source (I2), the output end of second phase inverter (INV2) exports the second output signal (act)；
When the control terminal of the switching tube (K1) receives the discharge and recharge cut-off signals, the switching tube (K1) keeps closing
Disconnected, the unit (F1) that trims forms short circuit, and the input signal of second phase inverter (INV2) is high level, and described second is defeated
It is low level to go out signal (act)；
When the control terminal of the switching tube (K1) receives the first discharge and recharge activation signal, the switching tube (K1) is led
It is logical, unit (F1) is trimmed described in high current process, the unit (F1) that trims is blown, and forms open circuit, second phase inverter
(INV2) input signal is low level, and second output signal (act) is high level.
8. battery protecting circuit according to claim 7, it is characterised in that the current value of second current source (I2) is
0.1 milliampere.
9. battery protecting circuit according to claim 7, it is characterised in that second current source (I2) is replaced with
Four resistance (R4).
10. battery protecting circuit according to claim 9, it is characterised in that the resistance value of the 4th resistance (R4) is big
In 1 megohm.
11. a kind of battery protection system, it is characterised in that the system includes first resistor (R1), second resistance (R2), electric capacity
And the battery protecting circuit as described in any one of claim 1~10 (C1)；
One end of the first resistor (R1) is connected with the positive pole of battery, and the other end is connected with the one end of the electric capacity (C1)
Connect, the other end of the electric capacity (C1) is connected with the battery protecting circuit, and the second resistance (R2) is connected to the electricity
Between core negative pole and the battery protecting circuit；Wherein, battery includes the battery core and the battery protecting circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410666105.0A CN104348233B (en) | 2014-11-19 | 2014-11-19 | Battery protecting circuit and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410666105.0A CN104348233B (en) | 2014-11-19 | 2014-11-19 | Battery protecting circuit and system |
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| Publication Number | Publication Date |
|---|---|
| CN104348233A CN104348233A (en) | 2015-02-11 |
| CN104348233B true CN104348233B (en) | 2017-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410666105.0A Active CN104348233B (en) | 2014-11-19 | 2014-11-19 | Battery protecting circuit and system |
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| CN (1) | CN104348233B (en) |
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| CN104617643B (en) * | 2015-03-09 | 2018-01-16 | 广东欧珀移动通信有限公司 | Charging method, charging equipment, power supply unit and charging system |
| CN104779589B (en) * | 2015-03-31 | 2018-03-23 | 无锡中感微电子股份有限公司 | Battery protecting circuit and system |
| WO2016154997A1 (en) * | 2015-04-03 | 2016-10-06 | Shanghai Sim-Bcd Semiconductor Manufacturing Co., Ltd. | Embedded battery protection system |
| US10305271B2 (en) * | 2016-06-30 | 2019-05-28 | Microsoft Technology Licensing, Llc | Multi-pack and component connectivity detection |
| WO2018068275A1 (en) * | 2016-10-13 | 2018-04-19 | 深圳易马达科技有限公司 | Storage battery and protection device thereof |
| CN109698534A (en) * | 2019-01-25 | 2019-04-30 | 银隆新能源股份有限公司 | Battery protecting plate circuit and balance car |
| CN110146824B (en) * | 2019-06-03 | 2024-07-02 | 长沙优力电驱动系统有限公司 | Battery cell charge and discharge information detection device |
| CN113495203B (en) * | 2020-04-03 | 2022-05-03 | 长鑫存储技术有限公司 | Test circuit and semiconductor test method |
| CN111564889B (en) * | 2020-06-30 | 2021-12-24 | 无锡睿勤科技有限公司 | Circuit for preventing battery assembly from live operation |
| CN112039152B (en) * | 2020-08-27 | 2022-10-21 | 西安稳先半导体科技有限责任公司 | Bluetooth earphone |
| CN111987773B (en) * | 2020-08-27 | 2022-05-20 | 西安稳先半导体科技有限责任公司 | On-chip system, battery pack and electronic device |
| CN112271772B (en) * | 2020-10-15 | 2022-02-22 | 西安稳先半导体科技有限责任公司 | Battery protection circuit, battery pack, test system and electronic device |
| CN111987772B (en) * | 2020-08-27 | 2022-05-20 | 西安稳先半导体科技有限责任公司 | On-chip system, battery pack and electronic device |
| CN112383106A (en) * | 2020-11-11 | 2021-02-19 | 湖北华中光电科技有限公司 | Self-activated battery protection circuit and self-activated method during battery installation |
| CN114142577B (en) * | 2022-01-29 | 2022-07-19 | 深圳市创芯微微电子有限公司 | Battery protection circuit, system and method for battery standby control |
| CN117791824A (en) * | 2024-02-23 | 2024-03-29 | 英诺赛科(苏州)半导体有限公司 | Protection circuit of battery pack, battery pack and charge-discharge protection method of battery pack |
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| JP4616222B2 (en) * | 2006-08-11 | 2011-01-19 | セイコーインスツル株式会社 | Charge / discharge control circuit and rechargeable power supply |
| KR100943576B1 (en) * | 2007-10-30 | 2010-02-23 | 삼성에스디아이 주식회사 | Battery pack |
| CN101483335A (en) * | 2009-02-03 | 2009-07-15 | 赛芯微电子（苏州）有限公司 | Highly integrated battery protection circuit |
| US9805890B2 (en) * | 2011-11-07 | 2017-10-31 | Cooper Technologies Company | Electronic device state detection for zero power charger control, systems and methods |
| JP5974500B2 (en) * | 2012-01-25 | 2016-08-23 | ミツミ電機株式会社 | Charge control device with protection function and battery pack |
| CN204376434U (en) * | 2014-11-19 | 2015-06-03 | 无锡中星微电子有限公司 | Battery protecting circuit |
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2014
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Address after: 214135 Jiangsu province Wuxi District Qingyuan Road No. 18 Taihu International Science Park sensor network university science and Technology Park 530 building A1001 Applicant after: WUXI ZHONGGAN MICROELECTRONIC CO., LTD. Address before: A 530 Taihu international science and Technology Park building 214135 Qingyuan Road in Jiangsu province Wuxi City District 10 layer Applicant before: Wuxi Vimicro Co., Ltd. |
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