CN105826964A - Charging protection circuit, terminal and charging power supply - Google Patents
Charging protection circuit, terminal and charging power supply Download PDFInfo
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- CN105826964A CN105826964A CN201510583166.5A CN201510583166A CN105826964A CN 105826964 A CN105826964 A CN 105826964A CN 201510583166 A CN201510583166 A CN 201510583166A CN 105826964 A CN105826964 A CN 105826964A
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Abstract
The invention provides a charging protection circuit, a terminal and a charging power supply, and relates to the charging field for terminals, which solves the problem in the prior art that a handset might be damaged due to the overheating phenomenon of the handset during the charging process. The charging protection circuit comprises a control circuit for detecting the temperature of the charging socket of a terminal, and outputting a first voltage signal to a charging power supply connected with the charging socket of the terminal when the temperature of the charging socket of the terminal is larger than a predetermined threshold value so as to enable the charging power supply to switch off a charging circuit based on the first voltage signal. Otherwise, the control circuit outputs a second voltage signal to the charging power supply connected with the charging socket of the terminal so as to enable the charging power supply to switch on the charging circuit based on the second voltage signal. According to the technical scheme of the invention, when the temperature of the charging socket of the terminal is larger than the predetermined threshold value, the control circuit outputs the first voltage signal to the charging socket of the terminal. Therefore, the charging power supply is enabled to switch off the charging circuit based on the first voltage signal. As a result, when the terminal is overheated during the charging process, the terminal is effectively prevented from being burnt.
Description
Technical field
The present invention relates to terminal charge field, particularly relate to a kind of charge protector, terminal and charge power supply.
Background technology
The security incident that mobile phone charging now causes gets more and more, and principal phenomena is that mobile phone or charging wire are burnt out by the time of charging, and along with filling, dodge the enforcement of large current charge schemes such as filling soon, this phenomenon will be increasingly severe.
Existing security protection scheme: as depicted in figs. 1 and 2; terminal 1 is connected by charging wire 3 foundation with charge power supply 2; critesistor (positivetemperaturecoefficient is increased at charging wire 3 on the charging pins of one end plug being typically connected with terminal 1; PTC); abnormal if there is charging, cause the heating of this end plug serious and reach some temperature nodes, now PTC shows high impedance; charge loop is cut off, thus protects terminal.But PTC manufacturing process is difficult, cost is high, and when room temperature, impedance is relatively big, and the more specific values of temperature protection node, uses underaction.It addition, PTC needs to be placed on above little hardboard, it is embedded into inside the plug of charging wire 3 the most again; complex process, limited space, and resistance to mechanical poor performance; bending or falling to make PTC rupture, thus when terminal charge heating is serious, it is impossible to terminal is played a protective role.
Summary of the invention
The purpose of the embodiment of the present invention is to provide a kind of charge protector, terminal and charge power supply, it is intended to solve owing to mobile phone charging heating is serious, and causes the problem that mobile phone damages.
To achieve these goals, The embodiment provides a kind of charge protector, be applied to terminal, including:
Control circuit, for detecting the temperature of the charging socket of terminal, and when the temperature of the charging socket of described terminal is more than a predetermined threshold value, export the first voltage signal to the charge power supply being connected with the charging socket of described terminal, described charge power supply is made to disconnect charging circuit according to described first voltage signal, otherwise, export the second voltage signal to the charge power supply that is connected with the charging socket of described terminal, make described charge power supply according to the described second voltage signal described charging circuit of unlatching.
For solving above-mentioned technical problem, the embodiment of the present invention additionally provides a kind of terminal, including printed circuit board (PCB), also includes the charge protector as above being arranged on described printed circuit board (PCB).
For solving above-mentioned technical problem, the embodiment of the present invention additionally provides a kind of charge protector, is applied to charge power supply, including:
The protection circuit being connected with the charging socket of charge power supply, turns off charging circuit for receiving the first voltage signal of the charging socket transmission of described charge power supply, or charging circuit is opened by the second voltage signal.
For solving above-mentioned technical problem, the embodiment of the present invention additionally provides a kind of charge power supply, including charging circuit, also includes the charge protector as above being connected with described charging circuit.
Having the beneficial effect that of the technique scheme of the embodiment of the present invention:
The technique scheme of the embodiment of the present invention, the temperature of the charging socket of control circuit detection terminal, and when the temperature of the charging socket of described terminal is more than a predetermined threshold value, export the first voltage signal to the terminal supplying power being connected with the charging socket of described terminal, otherwise, export the charge power supply that the second voltage signal connects to the charging socket of described terminal, the charge power supply being connected with the charging socket of described terminal is made to disconnect charging circuit according to described first voltage signal or open charging circuit according to the second voltage signal, and then make the present invention when terminal charge heating is serious, charging circuit can be cut off, terminal is effectively prevented to be burned.
Accompanying drawing explanation
Fig. 1 is the connection diagram of terminal, charging wire and charge power supply in prior art；
Fig. 2 is the structural representation of the plug that charging wire is connected with terminal；
Fig. 3 is the structured flowchart of charge protector of the present invention；
Fig. 4 is the first circuit diagram of charge protector of the present invention；
Fig. 5 is the second circuit schematic diagram of charge protector of the present invention；
Fig. 6 is the first connection diagram of terminal of the present invention and charge power supply；
Fig. 7 is the second connection diagram of terminal of the present invention and charge power supply；
Fig. 8 is the first workflow diagram of charge protector of the present invention；
Fig. 9 is the tertiary circuit schematic diagram of charge protector of the present invention；
Figure 10 is the 3rd connection diagram of terminal of the present invention and charge power supply.
Detailed description of the invention
For making the technical problem to be solved in the present invention, technical scheme and advantage clearer, it is described in detail below in conjunction with the accompanying drawings and the specific embodiments.
The embodiment provides a kind of charge protector, terminal and charge power supply, solve owing to mobile phone charging heating is serious, and cause the problem that mobile phone damages.
First embodiment:
This charge protector, is applied to terminal, including:
Control circuit, for detecting the temperature of the charging socket of terminal, and when the temperature of the charging socket of terminal is more than a predetermined threshold value, export the first voltage signal to the charge power supply being connected with the charging socket of above-mentioned terminal, described charge power supply is made to disconnect charging circuit according to described first voltage signal, otherwise, export the second voltage signal to the charge power supply that is connected with the charging socket of above-mentioned terminal, make described charge power supply according to the described second voltage signal described charging circuit of unlatching.
In the embodiment of the present invention, the temperature of the charging socket of control circuit detection terminal, and when the temperature of the charging socket of described terminal is more than a predetermined threshold value, export first voltage signal charging socket to described terminal, otherwise, export second voltage signal charging socket to described terminal, the charge power supply being connected with the charging socket of described terminal is made to disconnect charging circuit according to described first voltage signal or open charging circuit according to the second voltage signal, make the present invention when terminal charge heating is serious, charging circuit can be cut off, effectively prevent terminal to be burned.
Second embodiment:
As it is shown on figure 3, this charge protector, including:
Temperature-control circuit 11 and bleeder circuit 12；
Wherein, one end of temperature-control circuit 11 is connected with the charging socket of terminal, and the other end of temperature-control circuit 11 is connected with one end of bleeder circuit 12, the other end ground connection of bleeder circuit 12；
Temperature-control circuit 11 is for detecting the temperature of the charging socket of terminal, and when the temperature of the charging socket of terminal is more than a predetermined threshold value, control bleeder circuit 12 and export the first voltage signal to the charge power supply being connected with the charging socket of terminal, described charge power supply is made to disconnect described charging circuit according to described first voltage signal, otherwise control bleeder circuit 12 and export the second voltage signal to the charge power supply that is connected with the charging socket of terminal, make described charge power supply according to the described second voltage signal described charging circuit of unlatching.
The charge protector of the embodiment of the present invention, temperature by the charging socket of temperature-control circuit detection terminal, and when the temperature of the charging socket of above-mentioned terminal is more than predetermined threshold value, control above-mentioned bleeder circuit and export the first voltage signal to the charging socket of terminal, otherwise control above-mentioned bleeder circuit and export the second voltage signal to the charging socket of terminal, the charge power supply making the charging socket with this terminal be connected disconnects charging circuit according to this first voltage signal or opens charging circuit according to the second voltage signal, thus when terminal charge heating is serious, charging circuit is cut off, terminal is effectively prevented to be burned.
3rd embodiment:
As shown in Figure 4, this charge protector, including:
Temperature-control circuit 11 and bleeder circuit 12；One end of temperature-control circuit 11 is connected with the charging socket of terminal, and the other end of temperature-control circuit 11 is connected with one end of bleeder circuit 12, the other end ground connection of bleeder circuit 12；
Wherein, temperature-control circuit 11 includes: the first resistance R1, and one end of this first resistance R1 is connected with the charging pins of the charging socket of terminal；
Further, described bleeder circuit includes: the second resistance R2；One end of this second resistance R2 is connected with the other end of the first resistance R1, and export the first voltage signal or the second voltage signal to the charge power supply being connected with the charging socket of terminal, described charge power supply is made to disconnect described charging circuit according to described first voltage signal or open described charging circuit, the other end ground connection of the second resistance R2 according to described second voltage signal.
Concrete, the first resistance R1 in the embodiment of the present invention is the adjustable negative tempperature coefficient thermistor of resistance.
In this embodiment, under normal temperature, first resistance R1 is high value, the partial pressure value of the second resistance R2 output is low voltage signal, and when the temperature increases, the partial pressure value of the second resistance R2 output raises, when temperature reaches preset value, the partial pressure value of the second resistance R2 output is above-mentioned first voltage signal, makes charge power supply turn off charging circuit according to this first voltage signal, thus prevents mobile phone to be burned.
It addition, above-mentioned preset value can be configured by the resistance changing the first resistance R1, when being 100 DEG C such as above-mentioned preset value, the resistance of the first resistance R1 can be set to 10k Ω, the resistance of the second resistance R2 can be specially 10k Ω.
Further, as shown in Figure 4, in this embodiment, one end of the second resistance R2 is also connected with the data transmission pin of the charging socket of terminal, and the second resistance exports the first voltage signal or the second voltage signal by the data transmission pin of the charging socket of terminal.
Wherein, the data transmission pin of the charging socket of above-mentioned terminal can be particularly as follows: ID pin, D+ or D-pin, the charging pins of the charging socket of terminal can be specially VCHARGE pin or the GND pin of terminal, and the most above-mentioned VCHARGE pin is positive source, and magnitude of voltage can be specially 5V.
The charge protector of the embodiment of the present invention; temperature protection node can be set voluntarily by the resistance changing the first resistance R1; flexible and convenient to use; and the charge protector of the embodiment of the present invention; without increasing critesistor in the charging wire plug of limited space; reduce technology difficulty, reduce cost simultaneously.
Accordingly; charge protector due to the embodiment of the present invention; it is applied to terminal; therefore, the embodiment of the present invention additionally provides a kind of terminal, including printed circuit board (PCB); the charge protector as above being also provided on printed circuit board (PCB); wherein, the described of above-mentioned charge protector realizes embodiment all be applicable to the embodiment of this terminal, also can reach identical technique effect.
4th embodiment:
This charge protector, is applied to charge power supply, including:
The protection circuit being connected with the charging socket of charge power supply, turns off charging circuit for receiving the first voltage signal of the charging socket transmission of charge power supply, or charging circuit is opened by the second voltage signal.
The charge protector of the embodiment of the present invention; charging circuit is turned off by the first voltage signal of the charging socket transmission receiving charge power supply, or charging circuit is opened by the second voltage signal, thus when terminal charge heating is serious; charging circuit is cut off, effectively prevents terminal to be burned.
5th embodiment:
As it is shown in figure 5, this charge protector, including:
First field-effect transistor Q1, the data of the grid of described first field-effect transistor Q1 and the charging socket of charge power supply transmit pin and are connected, and the source electrode of the first field-effect transistor Q1 and the charging pins with the charging socket of charge power supply respectively that drains are connected.
Wherein, the data transmission pin of the charging socket of above-mentioned charge power supply can be specially the ID pin of charge power supply, D+ or D-pin, the charging pins of the charging socket of above-mentioned charge power supply can be specially GND pin or the VCHARGE pin of charge power supply, and in this embodiment, the source electrode of the first field-effect transistor Q1 and drain electrode both can be connected with the GND pin of charge power supply, it is possible to be connected with the VCHARGE pin of charge power supply.
Further, in this embodiment, charge protector also includes:
3rd resistance R3, one end of the 3rd resistance R3 is connected with the grid of the first field-effect transistor Q1, the other end ground connection of the 3rd resistance R3.
In this embodiment, the resistance of the 3rd resistance R3 can be specially 10k Ω, and the 3rd resistance plays the effect of current limliting, it is possible to effectively prevents problem that is too high due to the grid current of the first field-effect transistor Q1 and that cause the first field-effect transistor Q1 to damage.
The charge protector of the embodiment of the present invention; receive the first voltage signal of the charging socket transmission of charge power supply; this first voltage signal is unsatisfactory for the unlatching threshold voltage of the first field-effect transistor Q1; therefore; the source electrode of the first field-effect transistor Q1 and drain electrode turn off; now, charging circuit disconnects, and effectively prevents terminal to be burned.
Above-described embodiment is specifically described below realizes process.
As shown in Figure 6 and Figure 7, terminal 1 ' and charge power supply 2 ' are set up and are connected, concrete, the data transmission pin of the charging socket of terminal 1 ' transmits pin with the data of the charging socket of charge power supply 2 ' and connects one to one, and the charging pins of terminal 1 connects one to one with the charging pins of charge power supply 2 '.As it is shown in fig. 7, the control circuit in terminal 1 ' specifically includes: above-mentioned first resistance R1 and the above-mentioned second resistance R2 being connected with the first resistance R1.
Under normal temperature, first resistance R1 is high value, the partial pressure value at the second resistance R2 two ends is low voltage signal, now, second resistance R2 output partial pressure value (the second voltage signal) gives data transmission pin (the ID pin of terminal, D+ or D-pin), and by these data transmission pin, the second voltage signal is transferred to charge power supply 2 ' by terminal 1 ', now, the grid of the first field-effect transistor Q1 receives above-mentioned second voltage signal by the data transmission pin of charge power supply 2 ', owing to the second voltage signal reaches the unlatching threshold voltage of the first field-effect transistor Q1, therefore, the source electrode of the first field-effect transistor Q1 and drain electrode conducting, charging circuit is opened, and terminal 1 ' is charged；
When the temperature increases, the partial pressure value of the second resistance R2 output raises, when temperature reaches preset value, the partial pressure value of the second resistance R2 output is above-mentioned first voltage signal, first voltage signal is transferred to charge power supply 2 ' by data transmission pin by terminal 1 ', now, the grid of the first field-effect transistor Q1 transmits pin by the data of charge power supply 2 ' and receives the first voltage signal, owing to the first voltage signal is unsatisfactory for the unlatching threshold voltage of the first field-effect transistor Q1, therefore, source electrode and the drain electrode of the first field-effect transistor Q1 are not turned on, charging circuit turns off, and stop terminal 1 ' is charged.
Concrete, as shown in Figure 8, technique scheme includes:
Step S1: under normal temperature, the first resistance R1 is high value, and the partial pressure value at the second resistance R2 two ends is low voltage signal, now, the transmission of the ID/D+/D-pin of terminal for low-voltage；
Step S2: the grid of the first field-effect transistor Q1 and the ID/D+/D-pin of terminal are connected by data wire, the grid of the first field-effect transistor Q1 is low-voltage, now, the source electrode of the first field-effect transistor Q1 shows as high voltage, meet the unlocking condition of the first field-effect transistor Q1, the source electrode of the first field-effect transistor Q1 and drain electrode conducting, normally work；
Step S3: the temperature of the charging socket of terminal raises, the first resistance R1 resistance step-down, the voltage of the grid of the first field-effect transistor Q1 raises；
Step S4: the temperature of the charging socket of terminal reaches certain value, is unsatisfactory for the unlocking condition of the first field-effect transistor Q1, the source electrode of the first field-effect transistor Q1 and drain electrode and turns off；
Step S5: charging circuit is cut off, and plays a protective role terminal.
In this embodiment; the charging pins of charge power supply increases field-effect transistor as switch; and switch Enable Pin is communicated by the data transmission pin of charge power supply, under normal circumstances, field-effect transistor is opened; when terminal charge heating is serious time; the resistance of the first resistance R1 of end side changes so that the grid voltage of field-effect transistor does not meets the unlocking condition of field-effect transistor, and then makes field-effect transistor close; charge circuit cuts off, and plays a protective role terminal.
Sixth embodiment:
As it is shown in figure 9, this charge protector, including:
Second field-effect transistor Q2, the data of the grid of described second field-effect transistor Q2 and the charging socket of charge power supply transmit pin and are connected, and the source electrode of the second field-effect transistor Q2 and the first charging pins with the charging socket of charge power supply respectively that drains are connected；
3rd field-effect transistor Q3, the data of the grid of the 3rd field-effect transistor Q3 and the charging socket of charge power supply transmit pin and are connected, and the source electrode of the 3rd field-effect transistor Q3 and the second charging pins with the charging socket of charge power supply respectively that drains are connected.
Further, this charging includes that circuit also includes:
4th resistance R4, one end of the 4th resistance R4 is connected with the grid of the second field-effect transistor Q2, the other end ground connection of described 4th resistance R4；
5th resistance R5, described one end of 5th resistance R5 is connected with the grid of the 3rd field-effect transistor Q3, the other end ground connection of the 5th resistance R5.
This embodiment is with the difference of above-mentioned 5th embodiment, increases a field-effect transistor and current-limiting resistance respectively so that this charge protector can more reliably protect terminal on two charging pins of the charging socket of charge power supply.
As shown in Figure 10; terminal 1 ' is set up with charge power supply 2 ' and is connected; when the charging socket temperature of terminal 1 ' is too high; any one in second field-effect transistor Q2 and the 3rd field-effect transistor Q3 turns off; all can cut off the charging circuit between terminal 1 ' and charge power supply 2 ', terminal 1 ' is played a protective role.
The charge protector of the embodiment of the present invention can freely arrange temperature nodes; flexible and convenient to use; and the present invention protects from charger source; more efficient; in additionally the charge protector of the present invention is arranged on terminal or charge power supply; reduce technology difficulty and cost, meanwhile, there is good anti-bending performance.
Charge protector due to the embodiment of the present invention; it is applied to charge power supply; therefore; the embodiment of the present invention additionally provides a kind of charge power supply; including charging circuit, also include the charge protector as above being connected with described charging circuit, wherein; the described of above-mentioned charge protector realizes embodiment all be applicable to the embodiment of this terminal, also can reach identical technique effect.
The above is the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, on the premise of without departing from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (13)
1. a charge protector, is applied to terminal, it is characterised in that including:
Control circuit, for detecting the temperature of the charging socket of terminal, and when the temperature of the charging socket of described terminal is more than a predetermined threshold value, export the first voltage signal to the charge power supply being connected with the charging socket of described terminal, described charge power supply is made to disconnect charging circuit according to described first voltage signal, otherwise, export the second voltage signal to the charge power supply that is connected with the charging socket of described terminal, make described charge power supply according to the described second voltage signal described charging circuit of unlatching.
Charge protector the most according to claim 1, it is characterised in that described control circuit includes: temperature-control circuit and bleeder circuit；
Wherein, one end of described temperature-control circuit is connected with the charging socket of described terminal, and the other end of described temperature-control circuit is connected with one end of described bleeder circuit, the other end ground connection of described bleeder circuit；
Described temperature-control circuit is for detecting the temperature of the charging socket of described terminal, and when the temperature of the charging socket of described terminal is more than described predetermined threshold value, control described bleeder circuit and export described first voltage signal to the charge power supply being connected with the charging socket of described terminal, described charge power supply is made to disconnect described charging circuit according to described first voltage signal, otherwise control described bleeder circuit and export described second voltage signal to the charge power supply being connected with the charging socket of described terminal, described charge power supply is made to open described charging circuit according to described second voltage signal.
Charge protector the most according to claim 2, it is characterised in that described temperature-control circuit includes: the first resistance；
One end of described first resistance is connected with the charging pins of the charging socket of described terminal, and the other end of described first resistance is connected with described bleeder circuit.
Charge protector the most according to claim 3, it is characterised in that described first resistance is the adjustable negative tempperature coefficient thermistor of resistance.
Charge protector the most according to claim 3, it is characterised in that described bleeder circuit includes: the second resistance；
One end of described second resistance is connected with described first resistance, and export described first voltage signal or described second voltage signal to the charge power supply being connected with the charging socket of described terminal, described charge power supply is made to disconnect described charging circuit according to described first voltage signal or open described charging circuit, the other end ground connection of described second resistance according to described second voltage signal.
Charge protector the most according to claim 5; it is characterized in that; one end of described second resistance is also connected with the data transmission pin of the charging socket of described terminal, and described second resistance is by data transmission pin described first voltage signal of output of the charging socket of described terminal or described second voltage signal.
7. a terminal, including printed circuit board (PCB), it is characterised in that also include the charge protector as described in any one of claim 1-6 being arranged on described printed circuit board (PCB).
8. a charge protector, is applied to charge power supply, it is characterised in that including:
The protection circuit being connected with the charging socket of charge power supply, turns off charging circuit for receiving the first voltage signal of the charging socket transmission of described charge power supply, or charging circuit is opened by the second voltage signal.
Charge protector the most according to claim 8, it is characterised in that described protection circuit includes:
First field-effect transistor, the data of the grid of described first field-effect transistor and the charging socket of described charge power supply are transmitted pin and are connected, and the source electrode of described first field-effect transistor and the charging pins with the charging socket of described charge power supply respectively that drains are connected.
Charge protector the most according to claim 8, it is characterised in that described protection circuit includes:
Second field-effect transistor, the data of the grid of described second field-effect transistor and the charging socket of described charge power supply are transmitted pin and are connected, and the source electrode of described second field-effect transistor and the first charging pins with the charging socket of described charge power supply respectively that drains are connected；
3rd field-effect transistor, the data of the grid of described 3rd field-effect transistor and the charging socket of described charge power supply are transmitted pin and are connected, and the source electrode of described 3rd field-effect transistor and the second charging pins with the charging socket of described charge power supply respectively that drains are connected.
11. charge protectors according to claim 9, it is characterised in that described protection circuit also includes:
3rd resistance, one end of described 3rd resistance is connected with the grid of described first field-effect transistor, the other end ground connection of described 3rd resistance.
12. charge protectors according to claim 10, it is characterised in that described protection circuit also includes:
4th resistance, one end of described 4th resistance is connected with the grid of described second field-effect transistor, the other end ground connection of described 4th resistance；
5th resistance, one end of described 5th resistance is connected with the grid of described 3rd field-effect transistor, the other end ground connection of described 5th resistance.
13. 1 kinds of charge power supplies, including charging circuit, it is characterised in that also include the charge protector as described in any one of claim 8-12 being connected with described charging circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510583166.5A CN105826964B (en) | 2015-09-14 | 2015-09-14 | A kind of charge protector, terminal and charge power supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510583166.5A CN105826964B (en) | 2015-09-14 | 2015-09-14 | A kind of charge protector, terminal and charge power supply |
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| CN105826964A true CN105826964A (en) | 2016-08-03 |
| CN105826964B CN105826964B (en) | 2017-12-26 |
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| CN201510583166.5A Active CN105826964B (en) | 2015-09-14 | 2015-09-14 | A kind of charge protector, terminal and charge power supply |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106445044A (en) * | 2016-08-18 | 2017-02-22 | 硅谷数模半导体（北京）有限公司 | Data conversion interface protection method and system |
| CN107069843A (en) * | 2017-01-13 | 2017-08-18 | 顺丰科技有限公司 | Short-circuit protection charging inlet and its control method |
| CN111835069A (en) * | 2020-07-24 | 2020-10-27 | 维沃移动通信有限公司 | Charging device |
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| CN104104135A (en) * | 2014-07-07 | 2014-10-15 | 程宇航 | Charging apparatus, charging method and device |
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| CN201616664U (en) * | 2010-01-11 | 2010-10-27 | 李琪 | Mobile phone charger overheating alarm and protection device |
| CN201656433U (en) * | 2010-02-05 | 2010-11-24 | 国基电子（上海）有限公司 | Overheat protection circuit and electronic equipment using overheat protection circuit |
| US20150180245A1 (en) * | 2012-10-31 | 2015-06-25 | Motorola Solutions, Inc | Portable rechargeable battery pack and external adapter for same |
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| CN107069843B (en) * | 2017-01-13 | 2023-08-29 | 顺丰科技有限公司 | Short-circuit protection charging interface and control method thereof |
| CN111835069A (en) * | 2020-07-24 | 2020-10-27 | 维沃移动通信有限公司 | Charging device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105826964B (en) | 2017-12-26 |
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