CN1691451A - Mobile communication device with protection circuit - Google Patents
Mobile communication device with protection circuit Download PDFInfo
- Publication number
- CN1691451A CN1691451A CN 200410036710 CN200410036710A CN1691451A CN 1691451 A CN1691451 A CN 1691451A CN 200410036710 CN200410036710 CN 200410036710 CN 200410036710 A CN200410036710 A CN 200410036710A CN 1691451 A CN1691451 A CN 1691451A
- Authority
- CN
- China
- Prior art keywords
- circuit
- switch
- loop
- protection
- battery
- 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
Images
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a hand-held electronic apparatus and a method for protecting the system circuit. The hand-held electronic apparatus comprises: a shell, a system circuit, a removable battery and a protecting circuit. Both the system circuit and the protecting circuit are set it the shell. The removable battery is selective combined with the shell. The removable battery has an electric connection with the system circuit and form a circuit to provide power for the system circuit when the removable battery combined with the shell. The protecting circuit comprises a protecting control circuit and a control switch. The control switch is set on the circuit loop. The protecting control circuit will send out a protecting control signal to the control switch when it detects the abnormal voltage or current in the circuit loop to prevent the system circuit for being damaged by the abnormal voltage or current.
Description
Technical field
The present invention relates to a kind of hand-hold electronic device and the wherein guard method of circuit system, particularly a kind of circuit protection device and guard method thereof that is used between a mobile communications device and a detachable battery.
Background technology
The consumer is to the requirement of the mobile communications device of this class of mobile phone, and not only function wants many, and pattern is attractive, and fail safe is important especially.Based on security consideration, the employed battery of mobile communications device generally all has protection mechanism, to prevent undesired use mobile communications device is caused damage.
Protection mechanism in the employed battery of known mobile communications device is broadly divided into three kinds.First kind of protection mechanism is the protective circuit in the battery, and it can stop unusual voltage or electric current to the mobile communications device charge or discharge.Second kind of protection mechanism is thermistor, and when the user used charger to battery charge, cell voltage and battery temperature can constantly raise, and therefore can utilize the temperature-sensitive fuse to stop charging and discharging action.The third protection mechanism is the gas bleeder valve protection design of battery inside.
More than three kinds of protection mechanisms all only be located at inside battery.But many dealers have used assembly inferior to replace the internal protection assembly of former factory battery in order to save cost.The user uses former factory device collocation non-original factory battery may cause safety problem.On the other hand, the user can't guarantee really whether battery is provided with protection mechanism.In addition, the user may use unsettled charger to battery charge.The battery of assembly inferior is added unsettled charger, and user's safety extremely threatens.
Summary of the invention
Therefore main purpose of the present invention is to provide a kind of hand-hold electronic device and the wherein guard method of circuit system, when battery to hand-held charge electronic devices or discharge the time, hand-hold electronic device can be avoided unusual voltage or electric current to produce and cause damage.
A purpose of the present invention provides a kind of hand-hold electronic device and the wherein guard method of circuit system, in order to solve the problem of known technology.
Another object of the present invention provides a kind of hand-hold electronic device and the wherein guard method of circuit system, in order to prevent the user under unwitting situation, misapply battery inferior reach the charger that do not have protective device the unsafe problems that may cause.
Another object of the present invention provides a kind of hand-hold electronic device and the wherein guard method of circuit system, in order to forming the duplicate protection of device end and battery-end, with prevent to use former factory device arrange in pairs or groups the non-original factory battery the unsafe problems that may cause.
The present invention provides a kind of hand-hold electronic device and the wherein guard method of circuit system.Hand-hold electronic device comprises a housing, a circuit system, a detachable battery and one first protective circuit.The circuit system and first protective circuit all are arranged in the housing.Detachable battery optionally combines with housing.When detachable battery combined with housing, detachable battery and circuit system electrically connect to be forming a loop, required electric energy so that the circuit system running to be provided.First protective circuit includes the first protection control circuit and first control switch.First control switch is arranged on the loop.When the first protection control circuit detects when abnormal voltage or electric current are arranged on the loop, can send first protection and control signal to first control switch, the loop is become open circuit, come the protection system circuit to avoid being subjected to the infringement of unusual voltage or electric current.
Hand-hold electronic device of the present invention and wherein in the guard method of circuit system, owing to have protection control circuit and control switch in the housing, but the protection system circuit avoids being subjected to the infringement of unusual voltage or electric current.When the present invention is applied to this class mobile communications device of mobile phone, can form the duplicate protection of mobile phone end and battery-end.Even when using hand-hold electronic device of the present invention, the battery that misuse is inferior and/or do not have the charger of protective device, circuit system also can be protected to avoid being subjected to the abnormal voltage or the infringement of electric current.
Can be further understood by the following detailed description and accompanying drawings about the advantages and spirit of the present invention.
Description of drawings
Fig. 1 is the schematic diagram of hand-hold electronic device of the present invention.
Fig. 2 is the circuit diagram of an embodiment of first protective circuit of Fig. 1.
Fig. 3 is the schematic diagram of first protective circuit the first transistor switch control charge circuit in charging process among Fig. 2.
Fig. 4 is the method step flow chart of hand-hold electronic device shown in Figure 1 protection system circuit when charging.
Fig. 5 is the method step flow chart of hand-hold electronic device shown in Figure 1 protection system circuit when discharge.
The reference numeral explanation
20: hand-hold electronic device 21: adapter
22: housing 24: circuit system
25: charge circuit 26: detachable battery
27: 28: the first protective circuits of discharge loop
30: 31: the first electric currents in loop
33: the second electric currents of 32: the first protection control circuits
Control switch 35 in 34: the first: the first transistor switch
36: transistor seconds switch 37: indicator circuit
38: the first protection control signals protection in 40: the first control signal
42: the second protective circuits protection in 44: the second control circuit
46: the three transistor switches of 45: the second protection control signals
48: the four transistor switches of 47: the second control switchs
49: the second protection control signals
Embodiment
Please refer to Fig. 1, Fig. 1 is the schematic diagram for hand-hold electronic device 20 of the present invention.Hand-hold electronic device 20 of the present invention comprises a housing 22, a circuit system 24, one detachable battery 26 and one first protective circuit 28.The circuit system 24 and first protective circuit 28 all are arranged in the housing 22.Detachable battery 26 optionally combines with housing 22.When detachable battery 26 combined with housing 22, detachable battery 26 and circuit system 24 electrically connects to be forming a loop 30, required electric energy so that circuit system 24 runnings to be provided.In Fig. 1, other has an adapter 21 that the required electric energy of circuit system 24 of hand-hold electronic device 20 can be provided.
First protective circuit 28 includes one first protection control circuit 32, one first control switch 34 and an indicator circuit (open circuit indicator) 37.First control switch 34 comprises a first transistor switch 35 and a transistor seconds switch 36 all is arranged on the loop 30.The first transistor switch 35 and transistor seconds switch 36 can be a P type MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor) switch and a N type MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor) switch respectively.
Circuit system 24 includes a charge circuit (charging loop) 25 and one discharge loop (discharging loop) 27 with detachable battery 26 formed loops 30, the first transistor switch 35 is that series connection is arranged in the charge circuit 25, and transistor seconds switch 36 is to connect to be arranged in the discharge loop 27.
See also Fig. 2, Fig. 2 is the circuit diagram of an embodiment of first protective circuit 28 of Fig. 1.In the embodiment shown in Figure 2; when charging, the electric current of the charge circuit 25 that loop 30 is comprised is counterclockwise to carry out, when excessive charging by P+ to P-; the first protection control circuit 32 can be to send the first protection control signal 38 to the first transistor switch 35, to stop charging.And forward current still can carry out to circuit system 24 via the left side of the first transistor switch 35.When discharge, the electric current of the discharge loop 27 that loop 30 is comprised is to be carried out in a clockwise direction by P+ to P-, and when excessive discharge, the first protection control circuit 32 can be to send the first protection control signal 40 to transistor seconds switch 36, to stop discharge.And backward current still can carry out to detachable battery 26 via the left side of transistor seconds switch 36.
See also Fig. 3, Fig. 3 is the schematic diagram of first protective circuit 28 the first transistor switch 35 control charge circuits 25 in charging process among Fig. 2.In Fig. 3, charge circuit 25 comprises one first electric current 31 and one second electric current 33.When in the process of charging (during charging); when if the first protection control circuit 32 detects unusual voltage or the generation of the situation of electric current; can send the first protection control signal 38 to the first transistor switch 35; first electric current 31 is become open circuit, open circuit so that circuit system 24 becomes with detachable battery 26 formed charge circuits 25.But at this moment, still continue to exist because of second electric current 33.Therefore circuit system 24 (being presented among Fig. 1) still maintains electric energy because of the existence of second electric current 33.And indicator circuit 37 can be switched on and indicate the information that opens circuit and produced.For unusual voltage or the scope of electric current is to be known according to the stable measured of the electric heart of battery 26 by known industry.In one embodiment, unusual voltage or electric current have been meant that voltage range is lower than 2.75 volts or when being higher than 4.32 volts, or current range is greater than 2.5 ampere-hours.
In one embodiment, indicator circuit 37 be a light-emitting diode (light emitting diode, LED).When circuit system 24 and detachable battery 26 formed charge circuits 25 become when opening circuit, indicator circuit 37 can indicate the information that opens circuit and produced.That is to say that the light-emitting diode cognition of indicator circuit 37 is switched on and is luminous, to indicate the information that opens circuit and produced.
Hand-hold electronic device 20 of the present invention has first protective circuit 32.When the first protection control circuit 32 detects when on the loop 30 abnormal voltage or electric current being arranged; can send the first protection control signal 38 or 40 to corresponding the first transistor switch 35 and transistor seconds switch 36; loop 30 is become open circuit, come protection system circuit 24 to avoid being subjected to the abnormal voltage or the infringement of electric current.
Please consult Fig. 1 again.In one embodiment of this invention, detachable battery 26 is a lithium ion battery (Li-ion battery) or lithium polymer battery (Li-Polymer battery), and it comprises one second protective circuit 42.Second protective circuit 42 includes one second protection control circuit 44 and one second control switch 47.Second control switch 47 comprises one the 3rd transistor switch 46 and one the 4th transistor switch 48.When in the charging or the process of discharge; when the second protection control circuit 44 detects unusual voltage or the generation of the situation of electric current; can send one second protection control signal 45 or one second protection control signal 49 to the 3rd transistor switches 46 and the 4th transistor switch 48; circuit system 24 and detachable battery 26 formed loops 30 are become open circuit, come protection system circuit 24 and detachable battery 26 to avoid being subjected to this unusual voltage or the infringement of electric current.At this, during charging, if when detecting unusual voltage or the situation of electric current and producing, the second protection control circuit, 44 controls the 3rd transistor switch 46 becomes circuit system 24 and detachable battery 26 formed loops 30 to open circuit.And when discharge, if when detecting unusual voltage or the situation of electric current and producing, the second protection control circuit, 44 controls the 4th transistor switch 48 becomes circuit system 24 and detachable battery 26 formed loops 30 to open circuit.
Hand-hold electronic device 20 of the present invention has the first protection control circuit 32 and the second protection control circuit 44; That is to say to have duplicate protection mechanism, be subjected to the infringement of unusual voltage or electric current to avoid hand-hold electronic device 20 at device end and battery-end.Even the user is at hand-hold electronic device 20 misuse battery inferior and/or do not have the charger of protective device, circuit system 24 also can be protected to avoid being subjected to the abnormal voltage or the infringement of electric current.
When hand-hold electronic device 20 of the present invention is applied to this class mobile communications device of mobile phone, the right-hand member of Fig. 1 middle shell 22 is the battery connector (battery connector) of mobile phone, and the left end of battery 26 is the contact point (battery pad) of battery among Fig. 1.First protective circuit 28 and second protective circuit 42 can form the duplicate protection of mobile phone end and battery-end.Use mobile phone of the present invention; because mobile phone inside has protective circuit; the circuit system of mobile phone is protected to avoid being subjected to the abnormal voltage or the infringement of electric current; and can when unusual condition, warn the user by indicator circuit; can effectively reduce the worry of user's secure context, thus the user need not worry to use non-original factory battery and/or non-original factory charger the time the unsafe problems that may cause.
See also Fig. 4, Fig. 4 is the method step flow chart of hand-hold electronic device 20 shown in Figure 1 protection system circuit 24 when charging.。The present invention also provides a kind of guard method of circuit system of hand-hold electronic device.This hand-hold electronic device comprises a housing, a detachable battery, and a circuit system (maincircuit) is arranged in this housing.And when this detachable battery combined with this housing, this detachable battery and this circuit system electrically connect to be forming a loop (loop), required electric energy so that this circuit system running to be provided.The present invention can protect this circuit system to avoid being subjected to the infringement of unusual voltage or electric current.
Below will utilize Fig. 1 that the inventive method is described simultaneously.In the guard method of the circuit system 24 of hand-hold electronic device 20 of the present invention, provide first protective circuit 28 that is arranged on housing 22.In the guard method of the circuit system 24 of hand-hold electronic device 20, first protective circuit 28 comprises the following step in the method for hand-hold electronic device 20 protection system circuit 24 when detecting abnormal voltage or electric current in the charging process:
Step S50: beginning;
Step S52: send the first protection control signal 38 to the first transistor switch 35, in the process that is shown in charging, the first protection control circuit 32 has detected abnormal voltage or electric current;
Step S54: close the first transistor switch 35 so that first electric current 31 becomes opens circuit, circuit system 24 and detachable battery 26 formed charge circuits 25 are become open circuit;
Step S56: conducting indicator circuit 37, to indicate the information that opens circuit and produced; And
Step S58: finish.
See also Fig. 5, Fig. 5 is the method step flow chart of hand-hold electronic device 20 shown in Figure 1 protection system circuit 24 when discharge.In the guard method of the circuit system 24 of hand-hold electronic device 20 of the present invention, first protective circuit 28 comprises the following step in the method for hand-hold electronic device 20 protection system circuit 24 when detecting abnormal voltage or electric current in the discharge process:
Step S60: beginning;
Step S62: send the first protection control signal 40 to transistor seconds switch 36, detect abnormal voltage or electric current with (during discharging) in the process that is shown in discharge first protection control circuit 32;
Step S64: close transistor seconds switch 36 so that circuit system 24 becomes with detachable battery 26 formed discharge loops 27 opens circuit; And
Step S66: finish.
Compared to known technology, hand-hold electronic device of the present invention and wherein in the guard method of circuit system, owing to have protection control circuit and control switch in the electronic installation, but the protection system circuit avoids being subjected to the infringement of unusual voltage or electric current.When the present invention is applied to this class mobile communications device of mobile phone, can form the duplicate protection of mobile phone end and battery-end.Even when using hand-hold electronic device of the present invention, the battery that misuse is inferior and/or do not have the charger of protective device, circuit system also can be protected to avoid being subjected to the abnormal voltage or the infringement of electric current.
By the above detailed description of preferred embodiments, be to wish to know more to describe feature of the present invention and spirit, and be not to come category of the present invention is limited with above-mentioned disclosed preferred embodiment.On the contrary, its objective is that hope can contain in the category of claim of being arranged in of various changes and tool equality institute of the present invention desire application.
Claims (20)
1. hand-hold electronic device comprises:
One housing;
One circuit system is arranged in this housing;
One detachable battery optionally combines with this housing, and when this detachable battery combined with this housing, this detachable battery and this circuit system electrically connect to be forming a loop, required electric energy so that this circuit system running to be provided; And
One first protective circuit is arranged in this housing, and this first protective circuit includes one first protection control circuit and one first control switch, and this first control switch is arranged on this loop; And
Wherein, when this first protection control circuit detects when on this loop abnormal voltage or electric current being arranged; can send one first protection and control signal to this first control switch, this loop be become open circuit, protect this circuit system to avoid being subjected to this unusual voltage or the infringement of electric current.
2. hand-hold electronic device as claimed in claim 1, wherein, this first control switch includes a P type MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor) switch and a N type MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor) switch, is serially connected in respectively on this loop.
3. hand-hold electronic device as claimed in claim 1, wherein, this circuit system includes a charge circuit and a discharge loop with this formed loop of detachable battery, this first control switch includes a first transistor switch and a transistor seconds switch, this the first transistor switch is that series connection is arranged in this charge circuit, and this transistor seconds switch is to connect to be arranged in this discharge loop.
4. hand-hold electronic device as claimed in claim 3; wherein; when if this first protection control circuit detects unusual voltage or the generation of the situation of electric current in the process of charging; can send this first protection and control signal to this first transistor switch, open circuit so that this circuit system becomes with the formed charge circuit of this detachable battery.
5. hand-hold electronic device as claimed in claim 3; wherein; when if this first protection control circuit detects unusual voltage or the generation of the situation of electric current in the process of discharge; can send this first protection and control signal to this transistor seconds switch, open circuit so that this circuit system becomes with the formed discharge loop of this detachable battery.
6. hand-hold electronic device as claimed in claim 3; wherein; this first protective circuit includes an indicator circuit in addition, and when this circuit system and formed this charge circuit of this detachable battery become when opening circuit, this indicator circuit can indicate the information that opens circuit and produced.
7. hand-hold electronic device as claimed in claim 6, wherein, this indicator circuit is a light-emitting diode, and this charge circuit that is become with this detachable battery when this circuit system becomes when opening circuit, and this light-emitting diode can be switched on and indicate the information that opens circuit and produced.
8. hand-hold electronic device as claimed in claim 1, wherein, this unusual voltage range is lower than 2.75 volts or be higher than 4.32 volts.
9. hand-hold electronic device as claimed in claim 1, wherein, this unusual current range is greater than 2.5 amperes.
10. hand-hold electronic device as claimed in claim 1; wherein; this detachable battery is a lithium ion battery or a lithium polymer battery; comprise the design of one second protective circuit in this battery-end; this second protective circuit includes one second protection control circuit and one second control switch; when in the charging or the process of discharge; when this second protection control circuit detects unusual voltage or the generation of the situation of electric current; can send one second protection and control signal to this second control switch; this circuit system and this formed loop of detachable battery are become open circuit, protect this circuit system and this battery to avoid being subjected to this unusual voltage or the infringement of electric current.
11. the guard method of the circuit system of a hand-hold electronic device, this hand-hold electronic device comprises a housing, one detachable battery, and one circuit system be arranged in this housing, and when this detachable battery combines with this housing, this detachable battery and this circuit system electrically connect to be forming a loop, required electric energy so that this circuit system running to be provided; This guard method comprises the following step: one first protective circuit that is arranged on this housing is provided, and this first protective circuit includes one first protection control circuit and one first control switch, and this first control switch is arranged on this loop;
Detect the voltage on this loop or the situation of electric current with this first protection control circuit;
When this first protection control circuit detects when on this loop abnormal voltage or electric current being arranged, send one first protection and control signal to this first control switch; And
Close this first control switch so that this loop becomes opens circuit, protect this circuit system to avoid being subjected to this unusual voltage or the infringement of electric current.
12. guard method as claimed in claim 11, wherein, this first control switch includes a P type MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor) switch and a N type MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor) switch, is serially connected in respectively on this loop.
13. guard method as claimed in claim 11; wherein; this circuit system includes a charge circuit and a discharge loop with this formed loop of detachable battery; this first control switch includes a first transistor switch and a transistor seconds switch; this the first transistor switch is that series connection is arranged in this charge circuit, and this transistor seconds switch is to connect to be arranged in this discharge loop.
14. guard method as claimed in claim 13; wherein; when if this first protection control circuit detects unusual voltage or the generation of the situation of electric current in the process of charging; can send this first protection and control signal to this first MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor) switch, open circuit so that this circuit system becomes with the formed charge circuit of this detachable battery.
15. guard method as claimed in claim 13; wherein; when if this first protection control circuit detects unusual voltage or the generation of the situation of electric current in the process of discharge; can send this first protection and control signal to this second MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor) switch, open circuit so that this circuit system becomes with the formed discharge loop of this detachable battery.
16. guard method as claimed in claim 13; wherein; this first protective circuit includes an indicator circuit in addition, and when this circuit system and formed this charge circuit of this detachable battery become when opening circuit, this indicator circuit can indicate the information that opens circuit and produced.
17. guard method as claimed in claim 16; wherein; this indicator circuit is a light-emitting diode, and when this circuit system and formed this charge circuit of this detachable battery become when opening circuit, this light-emitting diode can be switched on and indicate the information that opens circuit and produced.
18. guard method as claimed in claim 11, wherein, this unusual voltage range is lower than 2.75 volts or be higher than 4.32 volts.
19. guard method as claimed in claim 11, wherein, this unusual current range is greater than 2.5 amperes.
20. guard method as claimed in claim 11; wherein; this detachable battery is a lithium ion battery or a lithium polymer battery); comprise the design of one second protective circuit in this battery-end; this second protective circuit includes one second protection control circuit and one second control switch; when in the charging or the process of discharge; when this second protection control circuit detects unusual voltage or the generation of the situation of electric current; can send one second protection and control signal to this second control switch; this circuit system and this formed loop of detachable battery are become open circuit, protect this circuit system and this battery to avoid being subjected to this unusual voltage or the infringement of electric current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410036710 CN1691451A (en) | 2004-04-27 | 2004-04-27 | Mobile communication device with protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410036710 CN1691451A (en) | 2004-04-27 | 2004-04-27 | Mobile communication device with protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1691451A true CN1691451A (en) | 2005-11-02 |
Family
ID=35346665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410036710 Pending CN1691451A (en) | 2004-04-27 | 2004-04-27 | Mobile communication device with protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1691451A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101212135B (en) * | 2006-12-27 | 2011-07-27 | 鸿富锦精密工业（深圳）有限公司 | Battery protection circuit and battery using the same |
| CN104124670A (en) * | 2013-04-27 | 2014-10-29 | 深圳市海洋王照明工程有限公司 | Double protection circuit for lithium battery |
| WO2017201734A1 (en) * | 2016-05-27 | 2017-11-30 | 广东欧珀移动通信有限公司 | Battery protection board, battery, and mobile terminal |
| US10122190B2 (en) | 2014-01-28 | 2018-11-06 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Power adapter, terminal, and method for processing impedance exception of charging loop |
| US10644520B2 (en) | 2016-05-27 | 2020-05-05 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Battery protection board, battery and mobile terminal |
-
2004
- 2004-04-27 CN CN 200410036710 patent/CN1691451A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101212135B (en) * | 2006-12-27 | 2011-07-27 | 鸿富锦精密工业（深圳）有限公司 | Battery protection circuit and battery using the same |
| CN104124670A (en) * | 2013-04-27 | 2014-10-29 | 深圳市海洋王照明工程有限公司 | Double protection circuit for lithium battery |
| CN104124670B (en) * | 2013-04-27 | 2018-04-17 | 深圳市海洋王照明工程有限公司 | A kind of dual-protection circuit of lithium battery |
| US10122190B2 (en) | 2014-01-28 | 2018-11-06 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Power adapter, terminal, and method for processing impedance exception of charging loop |
| US10320206B2 (en) | 2014-01-28 | 2019-06-11 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Power adapter, terminal, and method for processing impedance anomalies in charging circuit |
| US11631981B2 (en) | 2014-01-28 | 2023-04-18 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Power adapter, terminal, and method for processing impedance anomalies in charging loop |
| WO2017201734A1 (en) * | 2016-05-27 | 2017-11-30 | 广东欧珀移动通信有限公司 | Battery protection board, battery, and mobile terminal |
| US10644520B2 (en) | 2016-05-27 | 2020-05-05 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Battery protection board, battery and mobile terminal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2672548B1 (en) | Battery pack having improved safety | |
| CN106300499B (en) | Battery pack and charge control system for electric vehicle including the same | |
| CN1532988A (en) | Battery group with charging control function | |
| CN1178328C (en) | Protective circuit and device for protecting secondary battery | |
| EP2741391B1 (en) | Battery pack with improved safety | |
| JP6613997B2 (en) | Power supply | |
| KR101262524B1 (en) | Overcurrent protection apparatus for secondary bettery, protection method and battery pack | |
| CN1424786A (en) | Batteries and cordless electric tool with the same batteries as power supply | |
| JP2008099541A (en) | Battery management system, and drive method therefor | |
| CN1300458A (en) | Rechargeable battery control circuit | |
| CN1322029A (en) | Method for replacing secondary cell | |
| KR20180023647A (en) | Battery management system | |
| CN101047321A (en) | Lithium battery pack | |
| US9240694B2 (en) | Method for charging battery and charge control device for battery | |
| US7528578B2 (en) | Power supply apparatus | |
| CN1595704A (en) | Battery pack, electrical device connectable to battery pack, and method of identifying battery pack type | |
| KR20180037812A (en) | Apparatus and methode for fuse diagnosis using voltage distribution | |
| KR20150116269A (en) | Protection apparutus for rechargeable battery | |
| JP6722080B2 (en) | Vehicle power supply | |
| CN1691451A (en) | Mobile communication device with protection circuit | |
| CN101075667A (en) | Lithium-cell protector and its protection | |
| JP2002084669A (en) | Condition monitor for combined battery set | |
| CN201594570U (en) | Rechargeable battery equalization management system | |
| CN2798321Y (en) | Safety once lithium cell | |
| JP6844460B2 (en) | Rechargeable battery system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |