CN107046308A - A kind of charge protector and electronic equipment - Google Patents
A kind of charge protector and electronic equipment Download PDFInfo
- Publication number
- CN107046308A CN107046308A CN201710124404.5A CN201710124404A CN107046308A CN 107046308 A CN107046308 A CN 107046308A CN 201710124404 A CN201710124404 A CN 201710124404A CN 107046308 A CN107046308 A CN 107046308A
- Authority
- CN
- China
- Prior art keywords
- battery
- unit
- pin
- connection
- circuit
- 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.)
- Pending
Links
- 230000001012 protector Effects 0.000 title claims abstract description 29
- 238000007600 charging Methods 0.000 claims abstract description 28
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 230000005611 electricity Effects 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 2
- 101000746134 Homo sapiens DNA endonuclease RBBP8 Proteins 0.000 description 5
- 101000969031 Homo sapiens Nuclear protein 1 Proteins 0.000 description 5
- 102100021133 Nuclear protein 1 Human genes 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 102100039435 C-X-C motif chemokine 17 Human genes 0.000 description 1
- 101000889048 Homo sapiens C-X-C motif chemokine 17 Proteins 0.000 description 1
- 101100489713 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) GND1 gene Proteins 0.000 description 1
- 101100489717 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) GND2 gene Proteins 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- H02J7/0026—
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of charge protector and electronic equipment; the circuit includes battery unit, charhing unit, switch element, detection unit and processor; battery unit includes at least two battery circuits being connected in parallel; charhing unit is connected by switch element with the battery unit, is formed as the connection line of battery unit charging；The connection status signal that detection unit is arranged to be used for the connection status of battery circuit in the collection reflection battery unit is provided to the processor；Processor is arranged to when judging that there is percentage of batteries circuit breaks from battery unit according to connection status signal, and control switch unit connection line.The electronic equipment includes the charge protector according to the present invention.
Description
Technical field
The present invention relates to charge control technical field, more particularly it relates to a kind of charge protector and have
The electronic equipment of this kind of charge protector.
Background technology
At present, the battery that electronic equipment is generally come with battery unit, and battery unit uses what wire was welded substantially
The mode of mode either buckle carries out circuit connection.
In order to improve the capacity of battery unit, the battery units of some electronic equipments generally includes two or more (including two
It is individual) battery, and be connected in parallel between each battery.Accordingly, the charging current of the charger matched is substantially with reference to each
The maximum current sum that battery can bear calculates what is obtained.So, if which part battery is because of failure welding or accident
The reason such as come off is broken from battery unit, and the charging current that remaining power each gets is may result in during charging and exceedes and can hold
The scope received, and then bring potential danger.So that battery unit includes two 50mAH batteries used in parallel as an example, charger is set
The charging current put is 100mA, and under normal circumstances, when charger charges to battery unit, the electric current that each battery is got is
50mA, but if one of battery is broken from battery unit, then when being charged using charger, 100mA charging current
It will all be applied on a battery, this seriously exceeds nominal range, thus will bring the accidents such as generation battery explosion
Great risk, reduce the safety in utilization of product.
The content of the invention
One purpose of the embodiment of the present invention, which is to provide, a kind of can improve the new technical scheme of battery charging security.
According to the first aspect of the invention there is provided a kind of charge protector, it include battery unit, charhing unit,
Switch element, detection unit and processor, the battery unit include at least two battery circuits being connected in parallel, the charging
Unit is connected by the switch element with the battery unit, is formed as the connection line of the battery unit charging；It is described
The connection status signal that detection unit is arranged to be used for the connection status of battery circuit in the collection reflection battery unit is carried
It is supplied to the processor；The processor be arranged to according to the connection status signal judge exist percentage of batteries circuit from
When the battery unit is broken, the switch element is controlled to disconnect the connection line.
Optionally, the switch element includes single pole double throw analog switch, and single pole double throw analog switch has the
One connection pin, the second connection pin, commonly connected pin and gating control pin；The charge power supply output of the charhing unit
End is connected with the commonly connected pin, and the first connection pin is connected with the positive pole of the battery unit, and described second connects
Adapter pin is suspended；The gating control pin is connected with the processor, and the processor is arranged to by the gating
Control pin output gating described second connects the signal of pin to control the switch element to disconnect the connection line.
Optionally, the charhing unit includes USB interface, and the charhing unit is arranged to by the USB interface
Charge power supply outside connection.
Optionally, each battery circuit includes battery and the resistance being connected in series with the battery.
Optionally, the connection status signal includes the voltage signal at the resistance two ends of each battery circuit.
Optionally, the battery unit includes two battery circuits being connected in parallel, the electricity of each battery circuit
Resistance be connected between the positive pole of the battery unit and the positive pole of corresponding battery, the negative pole of the battery of each battery circuit and
The negative pole connection of the battery unit；The detection unit includes difference amplifier, and the battery of one of battery circuit is just
Pole is connected with the first input pin of the difference amplifier, the positive pole of the battery of another battery circuit and the differential amplification
The second input pin connection of device, the pressure difference signal that the difference amplifier exports two batteries is used as the connection status signal
There is provided to the processor.
Optionally, the charge protector also includes alarm unit, and the processor is arranged in basis
The connection status signal judge to exist percentage of batteries circuit from the battery unit break when, control the alarm list
Member output alarm signal.
According to the second aspect of the invention, a kind of electronic equipment is additionally provided, it is included according to the first aspect of the invention
Described charge protector.
Optionally, the electronic equipment is bluetooth earphone.
Optionally, the processor of the charge protector is the Bluetooth chip of the bluetooth earphone.
The beneficial effect of the present invention is that charge protector of the invention can detect in battery unit whether have
Percentage of batteries circuit because welding battery is bad or the unexpected reason such as come off is disconnected, and detected percentage of batteries circuit from
When battery unit is broken, the company that will be controlled switch unit when electronic product charges between charhing unit and battery unit
Link, to prevent the battery of remaining power circuit from occurring danger because of large current charge, and then ensures the charging of electronic product
Security.
Brief description of the drawings
The accompanying drawing for being combined in the description and constituting a part for specification shows embodiments of the invention, and even
It is used for the principle for explaining the present invention together with its explanation.
Fig. 1 is a kind of frame principle figure of embodiment according to charge protector of the present invention；
Fig. 2 is the circuit theory diagrams of a specific example of charge protector in Fig. 1.
Description of reference numerals：
U1：Switch element； U2：Detection unit；
U3：Processor； U4：Charhing unit；
U5：Battery unit； U501：First battery circuit；
U502：Second battery circuit；R4~R7：Resistance；
U201：Difference amplifier； VCC1、VCC2:Power pin；
GND1、GND2：Ground pin； IN+：Homophase input pin；
IN-：Anti-phase input pin； OUT：Output pin；
U101：Single pole double throw analog is switched； IN1：Gating control pin；
NO1：First connection pin； NC1：Second connection pin；
COM1：Commonly connected pin； BAT：Power end；
B1、B2：Battery.
Embodiment
The various exemplary embodiments of the present invention are described in detail now with reference to accompanying drawing.It should be noted that：Unless had in addition
Body illustrates that the part and the positioned opposite of step, numerical expression and numerical value otherwise illustrated in these embodiments does not limit this
The scope of invention.
The description only actually at least one exemplary embodiment is illustrative below, never as to the present invention
And its any limitation applied or used.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as a part for specification.
In shown here and discussion all examples, any occurrence should be construed as merely exemplary, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent accompanying drawing in individual accompanying drawing.
Fig. 1 is a kind of frame principle figure of embodiment of charge protector of the present invention.
According to Fig. 1, charge protector of the present invention includes battery unit U5, charhing unit U4, switch element U1, inspection
Survey unit U2 and processor U3.
Battery unit U5 includes at least two battery circuits being connected in parallel, and each battery circuit includes at least one electricity
Pond.After each battery circuit is connected in parallel, the positive pole and negative pole for a little forming battery unit U5 are connected in parallel in two.
In the embodiment shown in fig. 1, battery unit U5 includes two battery circuits U501, U502 being connected in parallel.
Charhing unit U4 is connected by switch element U1 with battery unit U5, and it is battery list to be formed via charhing unit U4
The connection line of first U5 chargings.
Charhing unit U4 includes charging circuit and the charging inlet for connecting external charging power supply.
The charging circuit can be integrated in power management chip.
Charhing unit U4 charging inlet can be configured to connect by USB for USB interface, i.e. charhing unit U4
Charge power supply outside mouth connection.
After charge power supply outside charhing unit U4 is connected by charging inlet, charge power supply, charhing unit U4, switch
Unit U1 and battery unit U5 just connect to form charge circuit.
Detection unit U2 is arranged to be used for the connection of the connection status of battery circuit in collection reflection battery unit U5
Status signal is provided to processor U3.
Processor U3 is arranged to：Receive the connection status signal that detection unit U2 is provided；According to the connection status
Signal judges whether that percentage of batteries circuit is broken from the battery unit；And, according to exist percentage of batteries circuit from
The judged result that battery unit is broken, controlling switch unit U1 disconnects above-mentioned connection line, and then disconnects external power source
Charge circuit afterwards, realizes charge protection control.In this manner it is possible to eliminate charging potential safety hazard that may be present, it is to avoid occur
Battery in battery circuit effectively improves the charging security of electronic product because charging current is excessive and occurs the accidents such as blast.
In the electronic device, charhing unit U4 is after charging inlet connection external power source, and external power source is all the way through overcharging
Electric unit U4 and switch element U1 charges for battery unit U5, and another road will connect the power end of electronic equipment by power supply unit
BAT, thinks that the electricity consumption device of electronic equipment is powered.
The power supply unit can be including voltage conversion chip etc..
When processor U3 controlling switch units U1 disconnects the above-mentioned connection line being located on charge circuit, electricity is had no effect on
Pool unit U5 or external power source are powered by power supply unit for the power end BAT of electronic equipment.
The charge protector can further include alarm unit (not shown).
The alarm unit can include at least one of indicator lamp, vibrating device and boom unit.
Therefore, above-mentioned processor U3 can also be further arranged to：Judging exist according to the connection status signal
Percentage of batteries circuit from the battery unit break when, control the alarm unit export alarm signal, for example control
Indicator lamp processed is lighted or flashed.
The charge protector can further include charging protection switch unit (not shown).
The charging protection switch unit can include physical button circuit, touch screen circuitry etc..
Therefore, above-mentioned processor U3 can also be further arranged to：Exported according to the charging protection switch unit
Signal judges whether to open charging protection function, and only carries out above-mentioned charge protection control when opening charging protection function.
Fig. 2 is a kind of circuit theory diagrams of specific example of charge protector in Fig. 1.
According to Fig. 2, above-mentioned switch element U1 can include single pole double throw analog and switch U101.The single pole double throw analog
Switching U101 has the first connection pin N01, the second connection pin NC1, commonly connected pin COM1 and gating control pin
IN1。
Above-mentioned charhing unit U4 charge power supply output end is connected with commonly connected pin COM1；First connection pin NO1
It is connected with battery unit U5 positive pole；Second connection pin NC1 suspensions；Gating control pin IN1 is connected with processor U3, is used for
The gate control signal Sig2 that reception processing device U3 is sent.
Above-mentioned processor U3 can specifically be arranged to：By gating the second connecting tube to gating control pin IN1 outputs
The connection line that pin NC1 signal comes between controlling switch unit U1 disconnections charhing unit U4 and battery unit U5.
Commonly connected pin COM1 is connected with the gate control signal Sig2 gatings of high level and is connected pin NO1 with first,
It is above-mentioned and the commonly connected pin COM1 of low level gate control signal Sig2 gatings connection is connected with second exemplified by pin NC1
The signal that gating second connects pin NC1 is then low level signal.
Above-mentioned battery unit U5 each battery circuit U501, U502 can include battery and be connected in series with the battery
Resistance.
In the embodiment shown in Figure 2, battery circuit U501 includes battery B1 and the resistance R4 being connected in series with battery B1,
Wherein, resistance R4 is connected between battery unit U5 positive pole and battery B1 positive pole A, battery B1 negative pole and battery unit U5
Negative pole be connected to earth terminal.Battery circuit U502 includes battery B2 and the resistance R5 being connected in series with battery B2, wherein, resistance
R5 is connected between battery unit U5 positive pole and battery B2 positive pole, and battery B2 negative pole is connected with battery unit U5 negative pole
To earth terminal.
Further, according to Fig. 2, above-mentioned detection unit U2 can include difference amplifier U201, battery circuit
U501 battery B1 positive pole A and difference amplifier U201 the first input pin IN- (anti-phase input pin) are connected, battery electricity
Road U502 battery B2 positive pole B and difference amplifier U201 the second input pin IN+ (homophase input pin) are connected, difference
The pressure difference signal that amplifier U201 exports two batteries B1, B2 is provided to processor U3 as connection status signal Sig1.
If the connection of two battery circuits is normal, the pressure difference between battery B1, B2 is smaller, typically smaller than 0.5V,
If one of battery circuit is disconnected, the pressure difference between battery B1, B2 will be significantly more than normal pressure difference.
Therefore, in this embodiment, processor U3 determines whether percentage of batteries circuit according to connection status signal Sig1
Can be from the battery unit U5 methods broken：Judge whether connection status signal Sig1 current voltage value exceedes setting
Value, wherein, the setting value is mapped in above-mentioned normal pressure difference according to difference amplifier U201 magnification ratio, in this way, it is determined that deposit
Broken in percentage of batteries circuit from battery unit U5, if not, determining that the connection of all battery circuits is normal.
Specifically, battery B1 positive pole A can be connected by resistance R7 with the first input pin IN-, battery B2 positive pole B
It can be connected by resistance R6 with the second input pin IN+, difference amplifier U201 output pin OUT is through resistance R8 and first
Input pin IN- connections, form negative-feedback.
In a further embodiment, connection status signal Sig1 can include resistance R4, R5 two ends of each battery circuit
Voltage signal, processor U3 can be judged according to the voltage signal correspondence battery circuit whether broken from battery unit U5.
By battery circuit U501 exemplified by battery unit U5 is broken, the magnitude of voltage at resistance R4 two ends will be 0, and therefore, processor U3 can
With the magnitude of voltage according to the voltage signal whether be 0 judge correspondence battery circuit whether broken from battery unit U5.In the reality
Apply in example, above-mentioned detection unit U2 includes above resistance R4 and resistance R5.
In a further embodiment, above-mentioned switch element U1 can realize on-off action using metal-oxide-semiconductor or transistor etc..
A kind of electronic equipment is additionally provided according to another aspect of the present invention, and the electronic equipment has appointing according to the present invention
A kind of charge protector.
The electronic equipment is, for example, bluetooth earphone.
In the embodiment that electronic equipment is bluetooth earphone, above-mentioned processor U3 can be the Bluetooth chip of bluetooth earphone.
In the embodiment that electronic equipment is bluetooth earphone, at least a portion of above-mentioned charhing unit U4 charging circuit can
To be integrated in Bluetooth chip.
The various embodiments described above primary focus describes the difference with other embodiment, but those skilled in the art should be clear
Chu, the various embodiments described above can be used alone or be combined with each other as needed.
Although some specific embodiments of the present invention are described in detail by example, the skill of this area
Art personnel are it should be understood that example above is merely to illustrate, the scope being not intended to be limiting of the invention.The skill of this area
Art personnel to above example it should be understood that can modify without departing from the scope and spirit of the present invention.This hair
Bright scope is defined by the following claims.
Claims (10)
1. a kind of charge protector, it is characterised in that including battery unit, charhing unit, switch element, detection unit and place
Device is managed, the battery unit includes at least two battery circuits being connected in parallel, and the charhing unit passes through the switch element
It is connected with the battery unit, is formed as the connection line of the battery unit charging；The detection unit is arranged to be used for
The connection status signal of the connection status of battery circuit is provided to the processor in the collection reflection battery unit；The place
Reason device is arranged to when judging that there is percentage of batteries circuit breaks from the battery unit according to the connection status signal,
The switch element is controlled to disconnect the connection line.
2. charge protector according to claim 1, it is characterised in that the switch element includes single pole double throw analog
Switch, the single pole double throw analog switch has the first connection pin, the second connection pin, commonly connected pin and gating control
Pin；The charge power supply output end of the charhing unit is connected with the commonly connected pin, the first connection pin and institute
State the positive pole connection of battery unit, the second connection pin suspension；The gating control pin is connected with the processor, institute
State processor and be arranged to the signal by controlling pin output gating the second connection pin to the gating to control
State switch element and disconnect the connection line.
3. charge protector according to claim 1, it is characterised in that the charhing unit includes USB interface, described
Charhing unit is arranged to by the charge power supply outside USB interface connection.
4. charge protector according to claim 1, it is characterised in that each battery circuit include battery and with
The resistance that the battery is connected in series.
5. charge protector according to claim 4, it is characterised in that the connection status signal includes each battery
The voltage signal at the resistance two ends of circuit.
6. charge protector according to claim 4, it is characterised in that the battery unit includes two be connected in parallel
Individual battery circuit, the resistance of each battery circuit be connected to the positive pole of the battery unit and corresponding battery positive pole it
Between, the negative pole of the battery of each battery circuit is connected with the negative pole of the battery unit；The detection unit includes difference
Amplifier, the positive pole of the battery of one of battery circuit is connected with the first input pin of the difference amplifier, another
The positive pole of the battery of battery circuit is connected with the second input pin of the difference amplifier, and the difference amplifier exports two
The pressure difference signal of battery is provided to the processor as the connection status signal.
7. charge protector according to any one of claim 1 to 6, it is characterised in that the charge protector
Also include alarm unit, the processor is arranged to judging there is percentage of batteries electricity according to the connection status signal
Road from the battery unit break when, control alarm unit output alarm signal.
8. a kind of electronic equipment, it is characterised in that including the charge protector any one of claim 1 to 7.
9. electronic equipment according to claim 8, it is characterised in that the electronic equipment is bluetooth earphone.
10. electronic equipment according to claim 9, it is characterised in that the processor of the charge protector is described
The Bluetooth chip of bluetooth earphone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710124404.5A CN107046308A (en) | 2017-03-03 | 2017-03-03 | A kind of charge protector and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710124404.5A CN107046308A (en) | 2017-03-03 | 2017-03-03 | A kind of charge protector and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107046308A true CN107046308A (en) | 2017-08-15 |
Family
ID=59544476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710124404.5A Pending CN107046308A (en) | 2017-03-03 | 2017-03-03 | A kind of charge protector and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107046308A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110581647A (en) * | 2019-09-29 | 2019-12-17 | 北京机械设备研究所 | Signal source circuit based on charger and battery power supply and power supply method |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000116018A (en) * | 1998-09-30 | 2000-04-21 | Sanyo Electric Co Ltd | Charger for charging a plurality of secondary batteries |
| JP2005184898A (en) * | 2003-12-16 | 2005-07-07 | Sanyo Electric Co Ltd | Charging device and method of discharging secondary battery |
| JP2008027658A (en) * | 2006-07-19 | 2008-02-07 | Matsushita Electric Ind Co Ltd | Battery pack and disconnection detection method thereof |
| CN201611792U (en) * | 2010-04-06 | 2010-10-20 | 田丽 | Battery charging safety protection circuit |
| CN102104176A (en) * | 2009-12-22 | 2011-06-22 | 三洋电机株式会社 | Battery system and method for detecting current restriction state in a battery system |
| CN201918770U (en) * | 2011-02-14 | 2011-08-03 | 中国移动通信集团吉林有限公司 | DC charge-discharge system |
| CN102347629A (en) * | 2010-07-30 | 2012-02-08 | 三洋电机株式会社 | Power supply device |
| CN103091636A (en) * | 2011-10-28 | 2013-05-08 | 三洋电机株式会社 | Abnormity determining method for battery pack and battery pack thereof |
| CN103259060A (en) * | 2012-02-21 | 2013-08-21 | 欧姆龙汽车电子株式会社 | Battery pack monitoring apparatus |
| CN103370847A (en) * | 2011-12-09 | 2013-10-23 | 本田技研工业株式会社 | Power control device |
| CN103490389A (en) * | 2013-09-25 | 2014-01-01 | 无锡中星微电子有限公司 | Battery protecting circuit and system |
| JP2014050138A (en) * | 2012-08-29 | 2014-03-17 | Toyota Industries Corp | Battery system and battery |
| CN104578307A (en) * | 2015-01-23 | 2015-04-29 | 浙江大学 | Structure of fault-tolerant lithium-ion battery pack and fault detection method |
-
2017
- 2017-03-03 CN CN201710124404.5A patent/CN107046308A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000116018A (en) * | 1998-09-30 | 2000-04-21 | Sanyo Electric Co Ltd | Charger for charging a plurality of secondary batteries |
| JP2005184898A (en) * | 2003-12-16 | 2005-07-07 | Sanyo Electric Co Ltd | Charging device and method of discharging secondary battery |
| JP2008027658A (en) * | 2006-07-19 | 2008-02-07 | Matsushita Electric Ind Co Ltd | Battery pack and disconnection detection method thereof |
| CN102104176A (en) * | 2009-12-22 | 2011-06-22 | 三洋电机株式会社 | Battery system and method for detecting current restriction state in a battery system |
| CN201611792U (en) * | 2010-04-06 | 2010-10-20 | 田丽 | Battery charging safety protection circuit |
| CN102347629A (en) * | 2010-07-30 | 2012-02-08 | 三洋电机株式会社 | Power supply device |
| CN201918770U (en) * | 2011-02-14 | 2011-08-03 | 中国移动通信集团吉林有限公司 | DC charge-discharge system |
| CN103091636A (en) * | 2011-10-28 | 2013-05-08 | 三洋电机株式会社 | Abnormity determining method for battery pack and battery pack thereof |
| CN103370847A (en) * | 2011-12-09 | 2013-10-23 | 本田技研工业株式会社 | Power control device |
| CN103259060A (en) * | 2012-02-21 | 2013-08-21 | 欧姆龙汽车电子株式会社 | Battery pack monitoring apparatus |
| JP2014050138A (en) * | 2012-08-29 | 2014-03-17 | Toyota Industries Corp | Battery system and battery |
| CN103490389A (en) * | 2013-09-25 | 2014-01-01 | 无锡中星微电子有限公司 | Battery protecting circuit and system |
| CN104578307A (en) * | 2015-01-23 | 2015-04-29 | 浙江大学 | Structure of fault-tolerant lithium-ion battery pack and fault detection method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110581647A (en) * | 2019-09-29 | 2019-12-17 | 北京机械设备研究所 | Signal source circuit based on charger and battery power supply and power supply method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103972868B (en) | Protect IC and cell voltage monitoring method | |
| CN101799491B (en) | Multi-cell battery pack protection circuit | |
| CN103746347B (en) | Battery protection chip and battery system | |
| CN101436830B (en) | Power supply device and protection method thereof | |
| CN204407869U (en) | Lithium battery secondary overvoltage protective circuit and lithium battery protection circuit | |
| CN105150963B (en) | A kind of automobile power system of stabilization | |
| CN106560968A (en) | Secondary-battery Protecting Integrated Circuit, Secondary Battery Protection Apparatus, And Battery Pack | |
| CN204668925U (en) | There is the lithium battery protection circuit of overtemperature protection | |
| CN103515937B (en) | Battery protecting circuit with secondary overvoltage and under-voltage protection function | |
| CN103259253B (en) | The battery protecting circuit of cascade and system | |
| CN108736536A (en) | Charge-discharge control circuit and cell apparatus | |
| CN106067684A (en) | Cell apparatus | |
| CN110266082A (en) | Detection method, charging interface detection circuit structure and the electronic equipment of channel impedance | |
| CN104967156A (en) | System capable of releasing overcurrent protection state of battery | |
| CN104300509A (en) | Under-voltage protection load latch circuit applicable to various lithium battery protection schemes | |
| CN104466917A (en) | Electric vehicle lithium battery management system | |
| CN107546797A (en) | Short-circuit protection circuit and electronic product | |
| CN106981902A (en) | A kind of charge-discharge circuit suitable for vehicle-mounted audio host backup nickel-hydrogen battery | |
| CN107046308A (en) | A kind of charge protector and electronic equipment | |
| CN207098704U (en) | The circuit and battery protection system balanced for adjusting two section voltage of serially-connected cells | |
| CN204243735U (en) | A kind of lithium battery management system for electric car | |
| CN102983557A (en) | Battery protective circuit and charging power switch control signal producing circuit thereof | |
| CN105655987A (en) | Cell protection circuit, cell and mobile terminal | |
| CN206498189U (en) | Battery protection integrated circuit | |
| CN106877283A (en) | A kind of electronic equipment and its power protecting circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170815 |