CN108282010A - Anticorrosion circuit and charger for charging interface - Google Patents
Anticorrosion circuit and charger for charging interface Download PDFInfo
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- CN108282010A CN108282010A CN201810182698.1A CN201810182698A CN108282010A CN 108282010 A CN108282010 A CN 108282010A CN 201810182698 A CN201810182698 A CN 201810182698A CN 108282010 A CN108282010 A CN 108282010A
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- power supply
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- 239000004065 semiconductor Substances 0.000 claims description 51
- 230000005611 electricity Effects 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The disclosure provides a kind of anticorrosion circuit and charger for charging interface, the anticorrosion circuit includes first switch and the second switch, the control terminal of first switch is connected with the data terminal of charging interface, the input terminal of first switch is connected with the first end of power supply, and be connected with the first power end of charging interface, the output end of first switch is connected with the control terminal of second switch；The input terminal of second switch is connected with the second end of power supply, and the output end of second switch is connected with the second source end of charging interface；When charging interface is hanging, first switch and the second switch is turned off, so that the current potential all same of data terminal, the first power end and second source end.The charging interface of the disclosure is when no charging equipment accesses, without pressure difference between each pin of charging interface, the case where avoiding each pin from generating galvano-cautery.
Description
Technical field
This disclosure relates to charge field more particularly to a kind of anticorrosion circuit and charger for charging interface.
Background technology
The ground terminal and power supply interface of the voltage input end of existing charging interface and the anode of power supply, charging interface
Cathode be connected directly.In the environment of high temperature and humidity, since charging interface charges, copper atom is lived with the oxygen atom in air
Property enhancing, be easier in conjunction with and charging interface caused to aoxidize, eventually leading to charging interface gets rusty, charging it is bad.It is demonstrate,proved by realizing
It is bright, since charging interface charges, even if copper foot is electroplated thicker layer gold and will be produced standby 2 hours in the environment of high temperature and humidity
Raw serious corrosion.(for example, the voltage input end of charging interface and the ends D- are connected due to oxidation) may cause to fill when serious
The soft short circuit of electrical interface generates, and further results in the short circuit of device to be charged.
Currently, there is not yet the design of industry agreement for charging interface aging.PD agreements (Power Delivery, work(
Rate transport protocol) it defines in endless or connecting line access, charging interface is not allow for voltage output, but purpose is not
The oxidation of charging interface is prevented, nor can prevent connecting line from aoxidizing.At present charger is alsied specify in output voltage to be less than
When 3V or so, protected mode need to be entered, but this is only the supplement to one of which failure mode, can not prevent interface fails.
Invention content
The disclosure provides a kind of anticorrosion circuit and charger for charging interface.
Specifically, the disclosure is achieved by the following technical solution：
According to the disclosure in a first aspect, provide a kind of anticorrosion circuit for charging interface, including first switch with
Second switch, the control terminal of the first switch with the data terminal of charging interface to be connected, the input terminal of the first switch
To be connected with the first end of power supply, and be connected with the first power end of the charging interface, the first switch it is defeated
Outlet is connected with the control terminal of the second switch, and the input terminal of the second switch is to the second end phase with power supply
Even, the output end of the second switch with the second source end of the charging interface being connected；When the charging interface is hanging,
The first switch and the second switch are turned off, so that the data terminal, first power end and the second source
The current potential all same at end.
In one embodiment, when the charging interface is plugged with charging equipment, the data terminal of the charging interface is through institute
It states the modulation of charging equipment and exports the control terminal for making the signal of the first switch conducting to the first switch, it is described
The output end of first switch exports the control terminal for making the signal of the second switch conducting to the second switch；Described first
Switch and the second switch are both turned on so that the charging interface is connected with the power supply.
In one embodiment, the first switch is triode, and the base stage of the triode is the control of the first switch
End processed.
In one embodiment, further include first resistor, the base stage of the triode described in first resistor connection through filling
The data terminal of electrical interface.
In one embodiment, the input terminal of the extremely described first switch of the current collection of the triode, the hair of the triode
Emitter-base bandgap grading is the output end of the first switch, and first power end is the ground terminal of the charging interface, and the first end is
The cathode of power supply.
In one embodiment, the second switch is metal-oxide-semiconductor, and the grid of the metal-oxide-semiconductor is the control of the second switch
End, the source electrode of the metal-oxide-semiconductor are the input terminal of the second switch, and the drain electrode of the metal-oxide-semiconductor is the output of the second switch
End, the second source end are the voltage output end of the charging interface, and the second end is the anode of power supply.
In one embodiment, further include second resistance, the emitter of the triode is through described in second resistance connection
The source electrode of metal-oxide-semiconductor.
In one embodiment, the input terminal of the extremely described first switch of transmitting of the triode, the collection of the triode
Electrode be the first switch output end, first power end be the charging interface voltage output end, described first
End is the anode of power supply.
In one embodiment, the second switch is metal-oxide-semiconductor, and the grid of the metal-oxide-semiconductor is the control of the second switch
End, the drain electrode of the metal-oxide-semiconductor are the output end of the second switch, and the source electrode of the metal-oxide-semiconductor is the input of the second switch
End, the second source end are the ground terminal of the charging interface, and the second end is the cathode of power supply.
In one embodiment, further include 3rd resistor, the emitter of the triode is through described in 3rd resistor connection
The anode of power supply.
In one embodiment, further include the 4th resistance, the collector of the triode is through described in the 4th resistance connection
The cathode of power supply.
In one embodiment, further include the 5th resistance, described 5th resistance one end is used to connect the of the charging interface
One power end, the other end are used to connect the second source end of the charging interface.
According to the second aspect of the disclosure, a kind of charger is provided, one end of the charger with power supply matching
It closes, for the other end to coordinate with charging equipment, the charger includes the charging interface to coordinate with charging equipment, institute
It further includes the anticorrosion circuit as described in any one of the above embodiments for charging interface to state charger, wherein the power supply is logical
The anticorrosion circuit is crossed with the charging interface to be connected.
The advantageous effect of the disclosure：Pass through the anticorrosion circuit of the disclosure so that charging interface connects in no charging equipment
Fashionable, each pin (including data terminal, the first power end and second source end) of charging interface preserves identical current potential, each pin
Between pressure difference is not present, to avoid galvano-cautery the case where occurs.It is particularly suitable for that the copper under hot and humid environment is gold-plated to be drawn
Foot avoids the gold-plated terminal of copper from generating galvano-cautery.
It should be understood that above general description and following detailed description is only exemplary and explanatory, not
The disclosure can be limited.
Description of the drawings
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the disclosure
Example, and together with specification for explaining the principles of this disclosure.
Fig. 1 is the structure diagram of the charger shown in one exemplary embodiment of the disclosure；
Fig. 2 is the structure diagram of the charger shown in disclosure another exemplary embodiment；
Fig. 3 is the circuit diagram of the anticorrosion circuit shown in one exemplary embodiment of the disclosure；
Fig. 4 is the circuit diagram of the anticorrosion circuit shown in disclosure another exemplary embodiment.
Reference numeral：
Power supply 100；First end 110；Second end 120；
Charging interface 200；Data terminal 210；First power end 220；Second source end 230；
Anticorrosion circuit 300；First switch 1；The control terminal 11 of first switch；The input terminal 12 of first switch；First opens
The output end 13 of pass；Second switch 2；The control terminal 21 of second switch；The input terminal 22 of second switch；The output end of second switch
23；First resistor R1；Second resistance R2；3rd resistor R3；4th resistance R4；5th resistance R5.
Specific implementation mode
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all implementations consistent with this disclosure.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the disclosure.
It is the purpose only merely for description specific embodiment in the term that the disclosure uses, is not intended to be limiting the disclosure.
The "an" of singulative used in disclosure and the accompanying claims book, " described " and "the" are also intended to including majority
Form, unless context clearly shows that other meanings.It is also understood that term "and/or" used herein refers to and wraps
Containing one or more associated list items purposes, any or all may be combined.
It will be appreciated that though various information, but this may be described using term first, second, third, etc. in the disclosure
A little information should not necessarily be limited by these terms.These terms are only used for same type of information being distinguished from each other out.For example, not departing from
In the case of disclosure range, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as
One information.Depending on context, word as used in this " if " can be construed to " ... when " or " when ...
When " or " in response to determination ".
Below in conjunction with the accompanying drawings, the anticorrosion circuit 300 and charger for charging interface 200 of the disclosure are carried out detailed
Explanation.In the absence of conflict, the feature in following embodiment and embodiment can be combined with each other.
Referring to Fig. 1, the embodiment of the present disclosure provides a kind of charger, one end of the charger to coordinate with power supply,
The other end with charging equipment to coordinate, to charge to charging equipment.The charger may include charging interface 200
With anticorrosion circuit 300.Wherein, charging interface 200 with charging equipment to coordinate, 200 He of charging interface of the present embodiment
Charging equipment is mating.In the present embodiment, power supply 100 is connected by anticorrosion circuit 300 with charging interface 200,
Anticorrosion circuit 300 can be used in preventing each pin of charging interface 200 from generating corrosion.
In the present embodiment, charging interface 200 can be USB interface or other kinds of charging interface 200.The present embodiment is to fill
Electrical interface 200 be USB interface for further illustrate.Wherein, USB interface may include tetra- pins of Vbus, D-, D+ and GND.Its
In, Vbus is the voltage output end of USB interface, D- and two differential signal ends (data terminal is) that D+ is USB, and GND connects for USB
The ground terminal of mouth.
In addition, power supply can be alternating current, or connect the power module (for example, computer) of alternating current.
Referring to Fig. 2, a kind of anticorrosion circuit 300 for charging interface 200 that the embodiment of the present disclosure provides, the anticorrosion
Circuit 300 may include first switch 1 and second switch 2.Wherein, the data of the control terminal 11 and charging interface 200 of first switch 1
End 210 (including D- and D+) be connected, the input terminal 12 of first switch 1 is connected with the first end 110 of power supply 100, and with fill
First power end 220 of electrical interface 200 is connected, and the output end 13 of first switch 1 is connected with the control terminal 21 of second switch 2.The
The input terminal 22 of two switches 2 is connected with the second end 120 of power supply 100, the output end 23 and charging interface of second switch 2
200 second source end 230 is connected.
When charging interface 200 is hanging, first switch 1 and second switch 2 are turned off, so that data terminal 210, the first power end
220 and second source end 230 current potential all same.
Pass through the anticorrosion circuit 300 of the disclosure so that charging interface 200 is when no charging equipment accesses, charging
Each pin (including data terminal 210, the first power end 220 and second source end 230) of mouth 200 preserves identical current potential, respectively draws
Pressure difference is not present between foot, to avoid galvano-cautery the case where occurs, and the copper being particularly suitable under hot and humid environment is gold-plated
Terminal avoids the gold-plated terminal of copper from generating galvano-cautery.
Further, when charging interface 200 is plugged with charging equipment, the data terminal 210 of charging interface 200 is through to be charged
The modulation of equipment and export so that first switch 1 be connected signal to first switch 1 control terminal 11 so that first switch 1 is led
It is logical.Meanwhile the output end 13 of first switch 1 can export the control terminal for making the signal of the conducting of second switch 2 to second switch 2
21 so that second switch 2 is connected.First switch 1 and second switch 2 are both turned on so that charging interface 200 and power supply 100
It connects, so that power supply 100 is connected with charging equipment, and then charging equipment is carried out by power supply 100
Charging.
Optionally, charging equipment is terminal, for example, mobile phone, tablet computer, electronic reader etc..
First switch 1 can be triode (PNP type triode or NPN triode) or metal-oxide-semiconductor (P-channel metal-oxide-semiconductor or N
Channel MOS tube).Second switch 2 or triode (PNP type triode or NPN triode) or metal-oxide-semiconductor (P-channel metal-oxide-semiconductor
Or N-channel MOS pipe).In the present embodiment, in conjunction with Fig. 3 and Fig. 4, first switch 1 is triode, and second switch 2 is metal-oxide-semiconductor.
Embodiment one
Referring to Fig. 3, in the present embodiment, the base stage of triode is the control terminal 11 of first switch 1.The base stage of triode connects
The data terminal 210 of charging interface 200.Further, which may also include first resistor R1.The base of triode
Data terminal 210 of the pole through first resistor R1 connections charging interface 200 prevents data terminal 210 to the carry out current limliting of data terminal 210
It is burnt because electric current is excessive.The triode of the present embodiment is PNP type triode.
Further, the input terminal 12 of the current collection of triode extremely first switch 1, the transmitting extremely first switch of triode
1 output end 13.Further, the grid of metal-oxide-semiconductor is the control terminal 21 of second switch 2, and the source electrode of metal-oxide-semiconductor is second switch
2 input terminal 22, the drain electrode of metal-oxide-semiconductor are the output end 23 of second switch 2.In addition, the first power end 220 is charging interface 200
Ground terminal, second source end 230 be charging interface 200 voltage output end.First end 110 is the cathode of power supply 100,
Second end 120 is the anode of power supply 100.Specifically, the grid of the emitter connection metal-oxide-semiconductor of triode, the source of metal-oxide-semiconductor
Pole connects the anode of power supply 100, the voltage output end of the drain electrode connection charging interface 200 of metal-oxide-semiconductor.The collector of triode
The cathode of power supply 100 is connected, and connects the ground terminal of charging interface 200.
The operation principle of the anticorrosion circuit 300 is：
It is accessed without charging equipment in charging interface 200, i.e., when charging interface 200 is hanging, data terminal 210 is in hanging shape
State (voltage of data terminal 210 is zero at this time), triode without pressure difference between base stage and emitter due to being in cut-off state.Hair
The voltage of emitter-base bandgap grading is zero, and metal-oxide-semiconductor is also at cut-off state, and anode and the voltage output end of power supply 100 disconnect, voltage output
Hold Non voltage output (i.e. the voltage of voltage output end is zero).Cathode of the ground terminal due to connecting power supply 100, therefore ground terminal
Voltage be also zero.Data terminal 210, voltage output end, ground terminal three voltage be 0, charging interface 200 is not charged.
When charging interface 200 is plugged with charging equipment, charging equipment can to the data terminal 210 of charging interface 200 into
Row modulation (resistance in the base stage and charging equipment of triode forms access), so that data terminal 210 exports about 0-0.8V
Voltage.The pressure difference more than 0.7V, triode ON can be generated between the base stage and emitter of triode.The grid of metal-oxide-semiconductor
There are input voltages so that the drain electrode of metal-oxide-semiconductor and source electrode generate the pressure difference that metal-oxide-semiconductor can be made to be connected, and metal-oxide-semiconductor is connected, and voltage is defeated
Outlet and the anode of power supply 100 are connected, and pressure difference, voltage output end output electricity are formed between voltage output end and ground terminal
Pressure, to charge to charging equipment.
Again referring to Fig. 3, which may also include second resistance R2, and the emitter of triode is through second resistance
The source electrode of R2 connection metal-oxide-semiconductors, to improve the voltage that metal-oxide-semiconductor can be made to close for the grid of metal-oxide-semiconductor.
Further, which may also include the 5th resistance R5.One end of 5th resistance R5 connects charging
Mouthfuls 200 voltage input end, the other end connect the ground terminal of charging interface 200, are released voltage output by the 5th resistance R5
The remaining capacity at end ensures that the voltage that voltage output end is exported when metal-oxide-semiconductor ends is zero.
Embodiment two
Referring to Fig. 4, in the present embodiment, the base stage of triode is the control terminal 11 of first switch 1.The base stage of triode connects
The data terminal 210 of charging interface 200.Further, which may also include first resistor R1.The base of triode
Data terminal 210 of the pole through first resistor R1 connections charging interface 200 prevents data terminal 210 to the carry out current limliting of data terminal 210
It is burnt because electric current is excessive.The triode of the present embodiment is PNP type triode.
Further, the input terminal 12 of the transmitting extremely first switch 1 of triode, the current collection extremely first switch of triode
1 output end 13.Further, the grid of metal-oxide-semiconductor is the control terminal 21 of second switch 2, and the drain electrode of metal-oxide-semiconductor is second switch
2 output end 23, the source electrode of metal-oxide-semiconductor are the input terminal 22 of second switch 2.First power end 220 is the voltage of charging interface 200
Output end, second source end 230 are the ground terminal of charging interface 200.First end 110 is the anode of power supply 100, second end
120 be the cathode of power supply 100.Specifically, the anode of the emitter connection power supply 100 of triode, and connect charging
The voltage output end of interface 200, the grid of the collector connection metal-oxide-semiconductor of triode.The source electrode of metal-oxide-semiconductor connects power supply 100
Cathode, metal-oxide-semiconductor drain electrode connection charging interface 200 ground terminal.
The operation principle of the anticorrosion circuit 300 is：
It is accessed without charging equipment in charging interface 200, i.e., when charging interface 200 is hanging, data terminal 210 is in hanging shape
State (voltage of data terminal 210 is zero at this time), triode without pressure difference between base stage and emitter due to being in cut-off state.Hair
The voltage of emitter-base bandgap grading is zero, and metal-oxide-semiconductor is also at cut-off state, and the cathode of power supply 100 is disconnected with the ground terminal of charging interface 200
It opens, voltage output end Non voltage output (i.e. the voltage of voltage output end is zero).Data terminal 210, voltage output end, ground terminal three
The voltage of person is 0, and charging interface 200 is not charged.
When charging interface 200 is plugged with charging equipment, charging equipment can to the data terminal 210 of charging interface 200 into
Row modulation (resistance in the base stage and charging equipment of triode forms access), so that data terminal 210 exports about 0-0.8V
Voltage.The pressure difference more than 0.7V, triode ON, ground terminal and power supply can be generated between the base stage and emitter of triode
The cathode of power supply 100 is connected.There are input voltages for the grid of metal-oxide-semiconductor so that the drain electrode of metal-oxide-semiconductor and source electrode generation can make MOS
The pressure difference of pipe conducting, metal-oxide-semiconductor conducting, the ground terminal of charging interface 200 are connected with the cathode of power supply 100, voltage output end
Pressure difference, voltage output end output voltage, to charge to charging equipment are formed between ground terminal.
Again referring to Fig. 4, which may also include 3rd resistor R3.The emitter of triode is through 3rd resistor
The anode of R3 connections power supply 100, to improve the voltage that metal-oxide-semiconductor can be made to close for the grid of metal-oxide-semiconductor.
Further, which may also include the 4th resistance R4.The collector of triode is through the 4th resistance R4
The cathode of power supply 100 is connected, further improves the voltage that metal-oxide-semiconductor can be made to close for the grid of metal-oxide-semiconductor.
Further, which may also include the 5th resistance R5.One end of 5th resistance R5 connects charging
Mouthfuls 200 voltage input end, the other end connect the ground terminal of charging interface 200, are released voltage output by the 5th resistance R5
The remaining capacity at end ensures that the voltage that voltage output end is exported when metal-oxide-semiconductor ends is zero.
The foregoing is merely the preferred embodiments of the disclosure, not limiting the disclosure, all essences in the disclosure
With within principle, any modification, equivalent substitution, improvement and etc. done should be included within the scope of the disclosure protection god.
Claims (13)
1. a kind of anticorrosion circuit for charging interface, which is characterized in that including first switch (1) and second switch (2), institute
The control terminal (11) of first switch (1) is stated to be connected with the data terminal (210) of charging interface (200), the first switch (1)
Input terminal (12) to be connected with the first end (110) of power supply (100), and with the first of the charging interface (200)
Power end (220) is connected, and the output end (13) of the first switch (1) is connected with the control terminal (21) of the second switch (2)；
The input terminal (22) of the second switch (2) with the second end (120) of power supply (100) to be connected, and described second
The output end (23) of (2) is switched to be connected with the second source end (230) of the charging interface (200)；
When the charging interface (200) is hanging, the first switch (1) and the second switch (2) are turned off, so that the number
According to end (210), the current potential all same of first power end (220) and the second source end (230).
2. anticorrosion circuit according to claim 1, which is characterized in that the charging interface (200) is plugged with to be charged
When equipment, the modulation of data terminal (210) through the charging equipment of the charging interface (200) and export so that described first
The signal of (1) conducting is switched to the control terminal (11) of the first switch (1), the output end (13) of the first switch (1) is defeated
Go out the control terminal (21) for making the signal of second switch (2) conducting to the second switch (2)；
The first switch (1) and the second switch (2) are both turned on so that the charging interface (200) and power supply electricity
Source (100) is connected.
3. anticorrosion circuit according to claim 1 or 2, which is characterized in that the first switch (1) is triode, institute
The base stage for stating triode is the control terminal (11) of the first switch (1).
4. circuit according to claim 3, which is characterized in that further include first resistor (R1), the base stage of the triode
The data terminal (210) of the charging interface (200) is connected through the first resistor (R1).
5. anticorrosion circuit according to claim 3, which is characterized in that the current collection of the triode extremely described first is opened
Close the input terminal (12) of (1), the output end (13) of the extremely described first switch (1) of transmitting of the triode, first electricity
Source (220) is the ground terminal of the charging interface (200), and the first end (110) is the cathode of power supply (100).
6. anticorrosion circuit according to claim 5, which is characterized in that the second switch (2) is metal-oxide-semiconductor, the MOS
The grid of pipe is the control terminal (21) of the second switch (2), and the source electrode of the metal-oxide-semiconductor is the input of the second switch (2)
It holds (22), the drain electrode of the metal-oxide-semiconductor is the output end (23) of the second switch (2), and the second source end (230) is described
The voltage output end of charging interface (200), the second end (120) are the anode of power supply (100).
7. anticorrosion circuit according to claim 6, which is characterized in that further include second resistance (R2), the triode
Emitter the source electrode of the metal-oxide-semiconductor is connected through the second resistance (R2).
8. anticorrosion circuit according to claim 3, which is characterized in that the transmitting of the triode extremely described first is opened
Close the input terminal (12) of (1), the output end (13) of the extremely described first switch (1) of current collection of the triode, first electricity
Source (220) be the charging interface (200) voltage output end, the first end (110) be power supply (100) just
Pole.
9. anticorrosion circuit according to claim 8, which is characterized in that the second switch (2) is metal-oxide-semiconductor, the MOS
The grid of pipe is the control terminal (21) of the second switch (2), and the drain electrode of the metal-oxide-semiconductor is the output of the second switch (2)
It holds (23), the source electrode of the metal-oxide-semiconductor is the input terminal (22) of the second switch (2), and the second source end (230) is described
The ground terminal of charging interface (200), the second end (120) are the cathode of power supply (100).
10. anticorrosion circuit according to claim 9, which is characterized in that further include 3rd resistor (R3), the triode
Emitter the anode of the power supply (100) is connected through the 3rd resistor (R3).
11. anticorrosion circuit according to claim 10, which is characterized in that further include the 4th resistance (R4), three pole
The collector of pipe connects the cathode of the power supply (100) through the 4th resistance (R4).
12. anticorrosion circuit according to claim 1, which is characterized in that further include the 5th resistance (R5),
Described 5th resistance (R5) one end is used to connect the first power end (220) of the charging interface (200), and the other end is used for
Connect the second source end (230) of the charging interface (200).
13. a kind of charger, one end of the charger to coordinate with power supply (100), the other end to it is to be charged
Equipment coordinates, and the charger includes the charging interface (200) to coordinate with charging equipment, which is characterized in that described to fill
Electric appliance further includes that claim 1 to 12 any one of them such as is used for the anticorrosion circuit (300) of charging interface (200), wherein
The power supply (100) is connected by the anticorrosion circuit (300) with the charging interface (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810182698.1A CN108282010A (en) | 2018-03-06 | 2018-03-06 | Anticorrosion circuit and charger for charging interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810182698.1A CN108282010A (en) | 2018-03-06 | 2018-03-06 | Anticorrosion circuit and charger for charging interface |
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| CN108282010A true CN108282010A (en) | 2018-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810182698.1A Pending CN108282010A (en) | 2018-03-06 | 2018-03-06 | Anticorrosion circuit and charger for charging interface |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066898A (en) * | 2018-09-13 | 2018-12-21 | 珠海市微半导体有限公司 | Integrate the charging connection and chip and charging connecting device of a variety of fast charge agreements |
| WO2020253606A1 (en) * | 2019-06-18 | 2020-12-24 | 维沃移动通信有限公司 | Connector |
| CN112636409A (en) * | 2020-12-09 | 2021-04-09 | 维沃移动通信有限公司 | Battery charging circuit and electronic equipment |
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