CN106058958A - Charger - Google Patents
Charger Download PDFInfo
- Publication number
- CN106058958A CN106058958A CN201610371850.1A CN201610371850A CN106058958A CN 106058958 A CN106058958 A CN 106058958A CN 201610371850 A CN201610371850 A CN 201610371850A CN 106058958 A CN106058958 A CN 106058958A
- Authority
- CN
- China
- Prior art keywords
- logic level
- pin
- control unit
- charging
- charger
- 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
- 238000000034 method Methods 0.000 claims abstract description 13
- 230000008569 process Effects 0.000 claims abstract description 11
- 230000007704 transition Effects 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 8
- 230000005669 field effect Effects 0.000 claims description 2
- 108010001267 Protein Subunits Proteins 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 230000008859 change Effects 0.000 description 9
- 230000005611 electricity Effects 0.000 description 4
- 230000003044 adaptive effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
Classifications
-
- H02J7/0091—
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The embodiment of the invention provides a charger. A charging adapter is internally provided with a line control unit; and a charging line is internally provided with a temperature control unit which can sense the ambient temperature, when the ambient temperature exceeds a critical temperature, the temperature control unit can control the breaking of a line where a configuration channel (CC) is located, and the line control unit can capture the breaking of the CC so as to control the closing of a Vbus, and when the Vbus is closed, a charging loop between the charger and a mobile terminal is cut off so as to play an effect on over-temperature protection, prevent the charger, even the mobile terminal from being burnt caused by over temperature, reduce the damage of the charger and the mobile terminal and improve the safety in the charging process.
Description
Technical field
The embodiment of the present invention belongs to electronic technology field, particularly relates to a kind of charger.
Background technology
At present, the charger type that big multi-mobile-terminal such as smart mobile phone uses mainly includes USB (universal serial bus)
The charger of (UniversalSerialBus is called for short USB) interface and the charger of c-type Type-C interface.
In actual use, the problem entered due to design problem or the foreign body of charger interface, it is easy to lead
Cause the phenomenon that burn-back mouth occurs in charging process.In order to reduce the burn-out rate of charging inlet, when designing charging inlet, all adopt
With in main loop of power circuit i.e. bus power source Vbus institute on the line, by critesistor (Positive Temperature
Coefficient, is called for short PTC) carry out excess temperature protection.
Inventor, during realizing the present invention, finds that prior art has following defects that owing to charger often makes
Being charged charging equipment by the mode of large current charge, in order to increase through-current capability, PTC encapsulation is bigger so that PTC feels
Temperature ability, when charging inlet occurs that temperature steeply rises, rate of rise in temperature has exceeded PTC response speed, causes PTC to prevent
Protect inefficacy, the problem that burn-back mouth occurs the most in a large number.
Summary of the invention
The embodiment of the present invention provides a kind of charger, and the mode protected for solving existing charger excess temperature exists works as interface
In the case of rate of rise in temperature is more than PTC response speed, the problem that PTC protection was lost efficacy.
To achieve these goals, embodiments provide a kind of charger to include:
The charging adapter of Type-C interface and two ends are the charging wire of Type-C interface, wherein, described adaptive charging
It is provided with line control unit on device, described charging wire is provided with temperature control unit；Wherein, described line control unit divides
It is not connected with the pin of collocation channel CC and the pin of bus power source Vbus；
Described line control unit, for detecting the variable condition of the logic level of the pin of described CC, when described change
State representation from the logic level transition that charged state is corresponding be logic level corresponding to vacant state time, control to close described
Vbus；
Described temperature control unit, in charging process, when perceiving ambient temperature and exceeding critical temperature, disconnects
The connection of the pin of described charging wire and described CC, so that the logic level of the pin of described CC changes.
The charger that the embodiment of the present invention provides, by being provided with line control unit, in charging in charging adapter
Being provided with temperature control unit in line, temperature control unit can be with sense ambient temperature, when ambient temperature exceedes critical temperature,
Controlling the disconnection of collocation channel CC place circuit in charging wire, line control unit can capture the disconnection of collocation channel CC,
And then control to close Vbus.After Vbus is closed, be equivalent to the charge circuit being disconnected between charger and mobile terminal, from
And the effect of excess temperature protection can be played, it is to avoid excess temperature causes charger even mobile terminal to be burned out, and reduces charger and shifting
The damage of dynamic terminal, improves the safety in charging process.
Accompanying drawing explanation
The structural representation of the charger that Fig. 1 provides for the embodiment of the present invention one；
The structural representation of the charger that Fig. 2 provides for the embodiment of the present invention two；
The circuit diagram of the charger that Fig. 3 provides for the embodiment of the present invention three.
Detailed description of the invention
The charger provided the embodiment of the present invention below in conjunction with the accompanying drawings is described in detail.
Embodiment one
Fig. 1, the structural representation of its charger provided for the embodiment of the present invention one.This charger includes: adaptive charging
Device 1 and charging wire 2.Wherein, the charging inlet of charging adapter 1 is Type-C interface, and the two ends charging inlet of charging wire 2 is
Type-C interface.
It is provided with line control unit 11 on charging adapter 1, charging wire 2 is provided with temperature control unit 21.Wherein,
Line control unit 11 is connected with the pin of collocation channel CC and the pin of bus power source Vbus respectively.
As it is shown in figure 1, charging adapter 1 is provided with pin 1 and pin 2, herein it is to be appreciated that pin 1 is logical for configuration
The pin of road CC, pin 2 is the pin of bus power source Vbus.In charging adapter 1 and charging wire 2, other pins do not make and change,
It is not described in detail herein.
Line control unit 11, for detecting the variable condition of the logic level of the pin of collocation channel CC, when described change
Change state representation logic level transition corresponding from charged state when being logic level corresponding to vacant state, control to close
Vbus。
Temperature control unit 21, in charging process, when perceiving ambient temperature and exceeding critical temperature, disconnection is filled
The connection of the pin of electric wire and collocation channel CC, so that the logic level of the pin of collocation channel CC changes.
Generally, when charging adapter is in vacant state, when i.e. can not form charge circuit, collocation channel CC
Logic level corresponding to pin be high level, this high level can represent with 1.When the logic that the pin of collocation channel CC is corresponding
When level is 1, the Vbus on charging adapter 1 can't be to charging wire 2 out-put supply.When using charger, mobile terminal is entered
Row charging time, charging wire 2 is inserted respectively in the charging inlet of charging adapter 1 and mobile terminal, now charging adapter 1,
Just constituting a charge circuit between charging wire 2 and mobile terminal, the logic level that the pin of collocation channel CC is corresponding will
Being changing into the logic level under the logic level under charged state, charged state is low level, and this low level can represent with 0.
Now, the Vbus place circuit in charging adapter 1 will start to be charged to mobile terminal.
In charging process, along with temperature liter often occur in the increase in charging interval, mobile terminal and charging adapter 1
High phenomenon, causes the damage to charger interface, charger or mobile terminal, the present embodiment in order to avoid temperature is too high
In, collocation channel CC adds a temperature control unit 21, controls to disconnect charging wire 2 by this temperature control unit 21
Middle collocation channel CC place circuit, after collocation channel CC place circuit is disconnected, the logic level of the pin of collocation channel CC
Can change.Specifically, temperature control unit 21 when perceiving ambient temperature and exceeding self critical temperature, just control
System disconnects the connection between charging wire 2 and the pin of collocation channel CC, so that the logic level of the pin of collocation channel CC occurs
Change.
Collocation channel CC place circuit is converted into off-state from conducting state, is equivalent to collocation channel CC from charged state
Being changed into vacant state, now, the logic level of the pin of collocation channel CC is by the logic level transition corresponding from charged state
For the logic level that vacant state is corresponding, i.e. it is converted into high level 1 from low level 0.
The charger that the embodiment of the present invention provides, is provided with line control unit in charging adapter, and this circuit controls
Unit, can capture the variable condition of the logic level of the pin of collocation channel CC, when variable condition can represent from charging
When logic level transition corresponding to state becomes logic level corresponding to vacant state, control to close Vbus.After Vbus is closed,
Be equivalent to the charge circuit being disconnected between charger and mobile terminal such that it is able to play the effect of excess temperature protection, it is to avoid mistake
Temperature causes charger even mobile terminal to be burned out, and reduces charger and the damage of mobile terminal, improves the peace in charging process
Quan Xing.
Embodiment two
Fig. 2, the structural representation of its charger provided for the embodiment of the present invention two.This charger includes above-described embodiment
Charging adapter 1 in one and charging wire 2.Wherein, the charging inlet of charging adapter 1 is Type-C interface, the two of charging wire 2
End charging inlet is Type-C interface.
As in figure 2 it is shown, charging adapter 1 is provided with pin 1 and pin 2, herein it is to be appreciated that pin 1 is logical for configuration
The pin of road CC, pin 2 is the pin of bus power source Vbus.In charging adapter 1 and charging wire 2, other pins do not make and change,
It is not described in detail herein.
It is provided with line control unit 11 on charging adapter 1, charging wire 2 is provided with temperature control unit 21.Wherein,
Line control unit 11 is connected with the pin of collocation channel CC and the pin of bus power source Vbus respectively.
The one of line control unit 11 frame mode alternatively in the present embodiment, including: logic level detection sub-unit
111 and control subelement 112.
Logic level detection sub-unit 111 is connected with controlling subelement 112, logic level detection sub-unit 111 and configuration
The pin of channel C C connects, and controls subelement 12 and is connected with the pin of Vbus.
Logic level detection sub-unit 111, for detecting the variable condition of the logic level of the pin of collocation channel CC.
Control subelement 112, represent from filling for the described variable condition detected in logic level detection sub-unit 111
When the logic electricity that electricity condition is corresponding is changed into logic level corresponding to vacant state, control to close Vbus.
About line control unit 11 and the concrete principle of temperature control unit 21, can be found in above-described embodiment one
Relevant record, here is omitted.
The charger that the embodiment of the present invention provides, by being provided with line control unit, in charging in charging adapter
Being provided with temperature control unit in line, temperature control unit can be with sense ambient temperature, when ambient temperature exceedes critical temperature,
Control the disconnection of collocation channel CC in charging wire, cause the pin of collocation channel CC to become high level from low transition, and circuit
Control unit can capture the variable condition of the logic level of the pin of collocation channel CC, when variable condition can represent from filling
When the logic level transition that electricity condition is corresponding is logic level corresponding to vacant state, control to close Vbus.When Vbus is closed
After, be equivalent to the charge circuit being disconnected between charger and mobile terminal such that it is able to play the effect of excess temperature protection, it is to avoid
Excess temperature causes charger even mobile terminal to be burned out, and reduces charger and the damage of mobile terminal, improves in charging process
Safety.
Embodiment three
Fig. 3, the structural representation of its charger provided for the embodiment of the present invention three.This charger includes above-described embodiment
In charging adapter 1 and charging wire 2.Wherein, the charging inlet of charging adapter 1 is Type-C interface, the two ends of charging wire 2
Charging inlet is Type-C interface.
It is provided with line control unit 11 on charging adapter 1, charging wire 2 is provided with temperature control unit 21.Wherein,
Line control unit 11 respectively with the pin of collocation channel CC and being connected with the pin of bus power source Vbus.
In order to realize charge circuit, the most also include mobile terminal 3, the wherein output of collocation channel CC in charger
End connects the input of the collocation channel CC of mobile terminal, the i.e. pin of mobile terminal configuration channel C C, Vbus in charger
Outfan connects the Vbus input of mobile terminal, the i.e. pin of mobile terminal Vbus.When charging process is normally carried out, charging
A charge circuit is formed between adapter 1, charging wire 2 and mobile terminal 3.
In the present embodiment, the another kind of line control unit 11 frame mode alternatively includes: microprocessor 113 and P-channel
Metal oxide semiconductor field-effect (Positive Channel Metal Oxide Semiconductor is called for short PMOS) is brilliant
Body pipe 114.
Wherein, the microprocessor 113 in charging adapter 1 can perform logic level in above-described embodiment two and check subelement
The function of 111, i.e. for detecting the variable condition of the logic level of the pin of collocation channel CC.
Microprocessor 113 is connected with the pin of collocation channel CC, is also connected with PMOS transistor 114.
PMOS transistor, the described variable condition detected for described microprocessor represents from corresponding the patrolling of charged state
When volume level transitions is logic level corresponding to vacant state, control to close described Vbus.
Wherein, the grid s of PMOS transistor is connected with microprocessor subelement 113, the source electrode d of PMOS transistor and power supply
Input connects, and the pin of drain electrode s with Vbus of PMOS transistor is connected.
Wherein, temperature control unit 21 is that (Positive Temperature Coefficient is called for short critesistor
PTC).PTC can be with sensing external environment temperature, and it has the spy constantly increased along with the liter high value of ambient temperature
Property.When ambient temperature increases above its critical temperature, the resistance of PTC is equivalent to infinity, ultimately results in collocation channel
The disconnection of CC, and then cause the logic level of CC pin to change.
Owing to PMOS transistor 114 turns on for low level, and high level disconnects, when microprocessor 113 detects change shape
State represent from the logic level transition that charged state is corresponding be logic level corresponding to vacant state time, to PMOS transistor 114
The i.e. grid s in control pole send a high level, it is possible to cause source electrode d and drain electrode s between disconnection.As source electrode d and drain electrode s
After disconnection, power supply just cannot be input to Vbus pin, is equivalent to close Vbus so that originally charge circuit disconnects, Vbus institute
Would not power to mobile terminal again at circuit, and then play the effect of overheat protector.
The charger that the embodiment of the present invention provides, by being provided with line control unit, in charging in charging adapter
Being provided with temperature control unit in line, temperature control unit can be with sense ambient temperature, when ambient temperature exceedes critical temperature,
Control the disconnection of collocation channel CC in charging wire, cause the pin of collocation channel CC to become high level from low transition, and circuit
Control unit can capture the variable condition of the logic level of the pin of collocation channel CC, when variable condition can represent from filling
When the logic level transition that electricity condition is corresponding is logic level corresponding to vacant state, control to close Vbus.When Vbus is closed
After, be equivalent to the charge circuit being disconnected between charger and mobile terminal such that it is able to play the effect of excess temperature protection, it is to avoid
Excess temperature causes charger even mobile terminal to be burned out, and reduces charger and the damage of mobile terminal, improves in charging process
Safety.
One of ordinary skill in the art will appreciate that: all or part of step realizing above-mentioned each method embodiment can be led to
The hardware crossing programmed instruction relevant completes.Aforesaid program can be stored in a computer read/write memory medium.This journey
Sequence upon execution, performs to include the step of above-mentioned each method embodiment；And aforesaid storage medium includes: ROM, RAM, magnetic disc or
The various media that can store program code such as person's CD.
Last it is noted that various embodiments above is only in order to illustrate the technical scheme of the embodiment of the present invention, rather than to it
Limit；Although the embodiment of the present invention being described in detail with reference to foregoing embodiments, those of ordinary skill in the art
It is understood that the technical scheme described in foregoing embodiments still can be modified by it, or to wherein part or
All technical characteristic carries out equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from this
The scope of bright each embodiment technical scheme.
Claims (4)
1. a charger, it is characterised in that including: the charging adapter of Type-C interface and two ends are Type-C interface
Charging wire, wherein, described charging adapter is provided with line control unit, described charging wire is provided with temperature and controls single
Unit；Wherein, described line control unit is connected with the pin of collocation channel CC and the pin of bus power source Vbus respectively；
Described line control unit, for detecting the variable condition of the logic level of the pin of described CC, when described variable condition
Represent from the logic level transition that charged state is corresponding be logic level corresponding to vacant state time, control to close described Vbus；
Described temperature control unit, in charging process, when perceiving ambient temperature and exceeding critical temperature, disconnects described
The connection of the pin of charging wire and described CC, so that the logic level of the pin of described CC changes.
Charger the most according to claim 1, it is characterised in that described line control unit, including: logic level detects
Subelement and control subelement；Described logic level detection sub-unit is connected with described control subelement, and described logic level is examined
Surveying subelement to be connected with the pin of described CC, described control subelement is connected with the pin of described Vbus；
Described logic level detection sub-unit, for detecting the variable condition of the logic level of the pin of described CC；
Described control subelement, represents from charging for the described variable condition detected in described logic level detection sub-unit
When logic level transition corresponding to state is logic level corresponding to vacant state, control to close described Vbus.
Charger the most according to claim 1, it is characterised in that described line control unit, including: microprocessor and P
NMOS N-channel MOS N field effect PMOS transistor；
Described microprocessor, for detecting the variable condition of the logic level of the pin of described CC；
Described PMOS transistor, the described variable condition detected for described microprocessor represents from corresponding the patrolling of charged state
When volume level transitions is logic level corresponding to vacant state, control to close described Vbus；
Wherein, described microprocessor is connected with the grid s of the pin of described CC and described PMOS transistor respectively, and described PMOS is brilliant
The source electrode d of body pipe is connected with power input, and the pin of drain electrode s and the described Vbus of described PMOS transistor is connected.
4. according to the charger described in any one of claim 1-3, it is characterised in that described temperature control unit is critesistor
PTC。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610371850.1A CN106058958A (en) | 2016-05-30 | 2016-05-30 | Charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610371850.1A CN106058958A (en) | 2016-05-30 | 2016-05-30 | Charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106058958A true CN106058958A (en) | 2016-10-26 |
Family
ID=57171500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610371850.1A Pending CN106058958A (en) | 2016-05-30 | 2016-05-30 | Charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106058958A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106505519A (en) * | 2016-12-29 | 2017-03-15 | 珠海格力电器股份有限公司 | Over-temperature protection method and over-temperature protector |
| CN106972563A (en) * | 2017-04-01 | 2017-07-21 | 重庆市华欣特实业有限公司 | Collection advertisement putting and insert box integral type are autotomyed electric-type charger baby |
| CN108321858A (en) * | 2017-01-16 | 2018-07-24 | 华硕电脑股份有限公司 | Charge protection device and its method |
| CN108733120A (en) * | 2017-04-21 | 2018-11-02 | 立锜科技股份有限公司 | Interface arrangement and interface temperature check device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202696242U (en) * | 2012-08-17 | 2013-01-23 | 惠州市博能新能源有限公司 | Quick-charging mobile power supply |
| CN104767180A (en) * | 2015-03-20 | 2015-07-08 | 深圳市万普拉斯科技有限公司 | Large current charging protection method and system for USB interface |
| CN105098884A (en) * | 2015-07-01 | 2015-11-25 | 小米科技有限责任公司 | Charging device and charging method for mobile terminal |
| CN105098900A (en) * | 2015-08-05 | 2015-11-25 | 青岛海信移动通信技术股份有限公司 | Mobile terminal, direct charging power adapter and charging method |
| US20160141822A1 (en) * | 2014-11-19 | 2016-05-19 | Dell Products L.P. | Information Handling System Multi-Purpose Connector Guide Pin Structure |
-
2016
- 2016-05-30 CN CN201610371850.1A patent/CN106058958A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202696242U (en) * | 2012-08-17 | 2013-01-23 | 惠州市博能新能源有限公司 | Quick-charging mobile power supply |
| US20160141822A1 (en) * | 2014-11-19 | 2016-05-19 | Dell Products L.P. | Information Handling System Multi-Purpose Connector Guide Pin Structure |
| CN104767180A (en) * | 2015-03-20 | 2015-07-08 | 深圳市万普拉斯科技有限公司 | Large current charging protection method and system for USB interface |
| CN105098884A (en) * | 2015-07-01 | 2015-11-25 | 小米科技有限责任公司 | Charging device and charging method for mobile terminal |
| CN105098900A (en) * | 2015-08-05 | 2015-11-25 | 青岛海信移动通信技术股份有限公司 | Mobile terminal, direct charging power adapter and charging method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106505519A (en) * | 2016-12-29 | 2017-03-15 | 珠海格力电器股份有限公司 | Over-temperature protection method and over-temperature protector |
| CN108321858A (en) * | 2017-01-16 | 2018-07-24 | 华硕电脑股份有限公司 | Charge protection device and its method |
| CN108321858B (en) * | 2017-01-16 | 2021-06-29 | 华硕电脑股份有限公司 | Charging protection device and method thereof |
| CN106972563A (en) * | 2017-04-01 | 2017-07-21 | 重庆市华欣特实业有限公司 | Collection advertisement putting and insert box integral type are autotomyed electric-type charger baby |
| CN108733120A (en) * | 2017-04-21 | 2018-11-02 | 立锜科技股份有限公司 | Interface arrangement and interface temperature check device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106058959A (en) | Charging line and charger | |
| CN106058958A (en) | Charger | |
| US8689022B2 (en) | Methods of and apparatus for controlling power drawn by an appliance through a USB port | |
| CN105098884B (en) | The charging equipment and charging method of mobile terminal | |
| CN107112743A (en) | A kind of charge protection method and device | |
| CN105305558B (en) | A kind of battery charge controller and method of adaptive adapter | |
| CN103237189B (en) | Electronic equipment, MHL connector, MHL system and connector detection method | |
| KR101987316B1 (en) | Battery protection circuit, battery protection apparatus and battery pack | |
| WO2018072209A1 (en) | Charging method and electronic device | |
| CN205123326U (en) | Quick charging circuit | |
| CN105449757B (en) | Prevent the method and device that adapter or portable power source disconnect in charging process | |
| CN101123358B (en) | Battery module with mixed voltage balance unit and its charging and discharging method | |
| KR102342841B1 (en) | Battery management apparatus, and battery pack and power system including the same | |
| RU2017102709A (en) | ELECTRONIC CIGARETTE AND CHARGED CONTAINER | |
| CN207200350U (en) | A kind of excess temperature overvoltage crowbar and intelligent terminal | |
| CN203839928U (en) | Lithium battery protection circuit | |
| CN105811506A (en) | Method for charging electronic device and electronic device | |
| CN104377660A (en) | Mobile terminal charging temperature protection method and device | |
| CN105514942A (en) | protection method and protection device for electronic device | |
| CN207199982U (en) | A kind of data wire | |
| CN109167420A (en) | A kind of charging control circuit, charging circuit and charge control method | |
| CN103475065A (en) | Intelligent charging method and system | |
| TW202335392A (en) | Over voltage protection circuit for usb type-c port and related method | |
| CN105826964A (en) | Charging protection circuit, terminal and charging power supply | |
| CN105471018A (en) | Charging/discharging control device and battery device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161026 |