CN108879907A - A kind of connector with charge prompting function - Google Patents
A kind of connector with charge prompting function Download PDFInfo
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- CN108879907A CN108879907A CN201810968345.4A CN201810968345A CN108879907A CN 108879907 A CN108879907 A CN 108879907A CN 201810968345 A CN201810968345 A CN 201810968345A CN 108879907 A CN108879907 A CN 108879907A
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- 239000003990 capacitor Substances 0.000 claims abstract description 99
- 239000004065 semiconductor Substances 0.000 claims abstract description 46
- 230000005611 electricity Effects 0.000 claims description 12
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000000087 stabilizing effect Effects 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
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Classifications
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- 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
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
- H02J7/04—Regulation of charging current or voltage
- H02J7/06—Regulation of charging current or voltage using discharge tubes or semiconductor devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
- H01R13/6675—Structural association with built-in electrical component with built-in electronic circuit with built-in power supply
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- H02J7/027—
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- H02J2007/10—
-
- 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
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
- H02J7/0049—Detection of fully charged condition
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of connectors with charge prompting function, including power connector, charging circuit and charge cable, charge cable is equipped with USB interface, one end of power connector and the power output end of charging circuit connect, the other end of power connector is connect with USB interface, and power connector is built-in with current-sensing circuit；Current-sensing circuit includes the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, first resistor, second resistance, first capacitor, the second capacitor, battery and driving circuit；Charging circuit includes first diode, third capacitor, 3rd resistor to the 5th resistance, the second diode, third diode, the 4th capacitor, the 5th capacitor, the first triode, the 6th capacitor, the 7th capacitor, the 4th diode, the second triode, transformer, the 5th diode, the 6th light emitting diode and power output end.The present invention has the function of that charge prompting, capable of protecting battery, so that it will not the charge lifetimes of battery are reduced because of recharge.
Description
Technical field
The present invention relates to field of connectors, in particular to a kind of connector with charge prompting function.
Background technique
The mobile devices such as mobile phone and portable product can carry battery currently on the market, on such end product
Battery, at present commonly using 5V rechargeable battery.And such end product generally can all be filled by charging cable to it
Electricity, general charging cable are all the cables of the interface needed for USB interface and terminal to realize that charging circuit is mobile to mobile phone etc. eventually
The battery of end and portable product carries out continuing charging.And common cable persistently persistently charges to battery, due to not filling
Electric prompt facility, may result in the accumulator super-charge of the mobile terminals such as mobile phone, also will affect its service life.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the above drawbacks of the prior art, providing one kind, there is charging to mention
Show that function, capable of protecting battery, so that it will not reduce the charge lifetimes of battery because of recharge to have the function of charge prompting
Connector.
The technical solution adopted by the present invention to solve the technical problems is：Construct a kind of connection with charge prompting function
Device, including power connector, charging circuit and charge cable, the charge cable are equipped with USB interface, the power connector
One end connect with the power output end of the charging circuit, the other end of the power connector is connect with the USB interface,
The power connector is built-in with current-sensing circuit；
The current-sensing circuit includes the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, first resistor, second resistance, first capacitor, the
The grid of two capacitors, battery and driving circuit, the grid of first metal-oxide-semiconductor and the second metal-oxide-semiconductor with the driving circuit
Connection, the drain electrode of first metal-oxide-semiconductor are connect with the charge cable, the source electrode ground connection of second metal-oxide-semiconductor, and described first
The source electrode of metal-oxide-semiconductor is connect with the drain electrode of second metal-oxide-semiconductor, the anode of battery and one end of first resistor respectively, and described
The other end of one resistance detects pin with the first of one end of the second resistance, one end of the second capacitor and driving circuit respectively
Connection, the cathode of the battery respectively with the other end of the second resistance, the other end of the second capacitor and first capacitor
One end connection, the other end ground connection of the first capacitor；
The charging circuit includes first diode, third capacitor, 3rd resistor, the second diode, third diode,
Four capacitors, the 5th capacitor, the first triode, the 6th capacitor, the 7th capacitor, the 4th diode, the 4th resistance, the second triode,
The anode of 5th resistance, transformer, the 5th diode, the 6th light emitting diode and power output end, the first diode connects
Connect one end of 220V alternating current, the cathode of the first diode respectively with one end of the third capacitor, 3rd resistor one
End, the 4th resistance one end connect with one end of the primary coil of transformer, described in the other end of the third capacitor connects
The other end of 220V alternating current, the other end of the 3rd resistor respectively with the cathode of second diode, the 5th capacitor
One end of one end, the collector of the first triode and the 7th capacitor connects, the other end and the described 2nd 3 of the 7th capacitor
The base stage of pole pipe connects, the anode of second diode anode with one end of the 4th capacitor and third diode respectively
Connection, the other end of the 4th capacitor are connect with the emitter of the other end of the third capacitor and the first triode respectively,
The cathode of the third diode is connect with one end of the other end of the 5th capacitor and the feedback coil of transformer respectively；
The other end of 4th resistance respectively with the primary coil of the collector of second triode and transformer
Other end connection, the base stage of first triode are connect with the cathode of the 4th diode, the sun of the 4th diode
Pole is connect with one end of the emitter of second triode and the 5th resistance respectively, the other end of the 5th resistance respectively with
The emitter of first triode is connected with the other end of the feedback coil of transformer, and the one of the secondary coil of the transformer
End is connect with the anode of the 5th diode, the cathode of the 5th diode respectively with one end of the 6th capacitor, the
The anode of six diodes, the anode of battery are connected with power output end, the other end difference of the primary coil of the transformer
It is connect with the other end, the cathode of the 6th diode and the cathode of battery of the 6th capacitor, the 6th light emitting diode
Model ZX-35288W42-1.
In the connector of the present invention with charge prompting function, one end of the power connector is equipped with USB
Male connector, the USB male joint are connect with the power output end of the charging circuit, and the other end of the power connector is equipped with USB
The drain electrode of base, first metal-oxide-semiconductor is connect by the USB female seat with the USB interface.
In the connector of the present invention with charge prompting function, the charging circuit further includes the 7th capacitor,
One end of 7th capacitor is connect with the collector of first triode, the other end and described second of the 7th capacitor
The base stage of triode connects, and the capacitance of the 7th capacitor is 500pF.
In the connector of the present invention with charge prompting function, the charging circuit further includes the seven or two pole
Pipe, the anode of the 7th diode connect with one end of the 3rd resistor, the cathode of the 7th diode and described the
One end of four resistance connects, the model S-822T of the 7th diode.
In the connector of the present invention with charge prompting function, the charging circuit further includes the 6th resistance,
One end of 6th resistance is connect with one end of the feedback coil of the transformer, the other end of the 6th resistance with it is described
The other end of 5th capacitor connects, and the resistance value of the 6th resistance is 43k Ω.
In the connector of the present invention with charge prompting function, first metal-oxide-semiconductor and the second metal-oxide-semiconductor are
N-channel MOS pipe, first triode and the second triode are NPN type triode.
Implement the connector with charge prompting function of the invention, has the advantages that：Connect due to being equipped with power supply
Device, charging circuit and charge cable are connect, power connector is built-in with current-sensing circuit, and current-sensing circuit includes the first MOS
Pipe, the second metal-oxide-semiconductor, first resistor, second resistance, first capacitor, the second capacitor, battery and driving circuit；Charging circuit packet
Include first diode, third capacitor, 3rd resistor, the second diode, third diode, the 4th capacitor, the 5th capacitor, the one or three
Pole pipe, the 6th capacitor, the 7th capacitor, the 4th diode, the 4th resistance, the second triode, the 5th resistance, transformer, the five or two
Pole pipe, the 6th light emitting diode and power output end, power connector have the function of that prompt and detecting current, the present invention can mention
Show just in charging, after battery is fully charged, the present invention can be automatically stopped power supply, while have visual effect prompt to have been filled with
Electricity will not continue to power to battery again after battery is completely filled with, so that playing protection battery will not be because of recharge
And battery charge lifetimes are reduced, under the action of the first metal-oxide-semiconductor and the second metal-oxide-semiconductor, instruction can be assigned to driving circuit, driven
Dynamic 6th lumination of light emitting diode plays the role of display to make a response, meanwhile, the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, the
One triode and the cooperation of the second triode can be with the distribution of driving current, therefore have the function of charge prompting, can protect battery
So that it will not the charge lifetimes of battery are reduced because of recharge.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the present invention with the structural schematic diagram in connector one embodiment of charge prompting function；
Fig. 2 is the circuit diagram of current-sensing circuit in the embodiment；
Fig. 3 is the circuit diagram of charging circuit in the embodiment.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the connector embodiment that the present invention has charge prompting function, this has the connector of charge prompting function
Structural schematic diagram is as shown in Figure 1.In Fig. 1, it includes power connector 1, charging circuit 2 that this, which has the connector of charge prompting function,
With charge cable 3 (i.e. charging power cord), wherein charge cable 3 is equipped with USB interface (not shown), power connector 1
One end connect with the power output end of charging circuit 2, the USB interface on the other end of power connector 1 and charge cable 3 connects
It connects, power connector 1 is built-in with current-sensing circuit 11, and current-sensing circuit 11, charging circuit 2 and charge cable 3 constitute tool
There are charge prompting and the fully charged rear connector for stopping charging of battery.Current-sensing circuit 11 has display and detecting charging electricity
The effect of stream, that is, have the function of charge prompting, and in charging process or being completely filled with prompt and stopping after electricity
The function of charging, in other words, the prompt that current-sensing circuit 11 can carry out the prompt of charging process and be full of guarantees simultaneously
No longer lasting charging after charging complete.
Fig. 2 is the circuit diagram of current-sensing circuit in the present embodiment；In Fig. 2, which includes the
One metal-oxide-semiconductor M1, the second metal-oxide-semiconductor M2, first resistor R1, second resistance R2, first capacitor C1, the second capacitor C2, battery BAT and
Driving circuit U1, driving circuit U1 include driving chip, the grid of the grid of the first metal-oxide-semiconductor M1 and the second metal-oxide-semiconductor M2 with drive
Dynamic circuit U 1 connects, and the drain electrode of the first metal-oxide-semiconductor M1 is connect with charge cable 3, the source electrode ground connection of the second metal-oxide-semiconductor M2, the first metal-oxide-semiconductor
The source electrode of M1 is connect with one end of the drain electrode of the second metal-oxide-semiconductor M2, the anode of battery BAT and first resistor R1 respectively, the first electricity
The other end of R1 detects pin H1 with the first of one end of second resistance R2, one end of the second capacitor C2 and driving circuit U1 respectively
Connection, the cathode of battery BAT respectively with the other end of second resistance R2, the other end of the second capacitor C2 and first capacitor C1
One end connection, the other end ground connection of first capacitor C1.
In the present embodiment, one end of power connector 1 is equipped with USB male joint 12, the power supply of USB male joint 12 and charging circuit 2
Output end connection, the other end of power connector 1 are equipped with USB female seat 13, the drain electrode of the first metal-oxide-semiconductor M1 by USB female seat 13 with
USB interface connection.
In the present embodiment, first resistor R1 and second resistance R2 are thermistor, enable the voltage at the both ends battery BAT be
UB, the internal resistance R of battery BATB, the electric current for flowing through battery BAT is IB, K=R2/ (R1+R2), 11 work of current-sensing circuit
When making, driving circuit U1 passes through the voltage of the detecting both ends second resistance R2 H1, H2, to obtain the voltage at the both ends second resistance R2
Poor UR2, then the electric current for flowing through battery BAT is IB=UR2/K*RB.It is upper with temperature when the current-sensing circuit 11 works
It rises, the internal resistance R of battery BATBIt will become larger, and in calculating process, the internal resistance R of battery BATBIt is a fixed value, causes
The internal resistance R of battery BATBActual size be greater than the size in its calculating process so that flowing through of detecting of driving circuit U1
The electric current I of battery BATBGreater than the electric current for actually flowing through battery BAT.And it can be seen from formula in battery BAT
Hinder RBIn the case where becoming larger, the value for reducing K can then compensate the internal resistance R of battery BAT to a certain extentBThe bring that becomes larger shadow
It rings, so the second resistance R2 of negative temperature coefficient is placed near battery BAT, with the raising of battery BAT temperature, second
The resistance value of resistance R2 will reduce, i.e., in the internal resistance R of battery BATBIn the case where becoming larger, the purpose for reducing the value of K is realized,
To reduce the electric current I for flowing through battery BAT that driving circuit U1 is detectedBError.The current-sensing circuit 11 passes through subzero temperature
The second resistance R2 of degree coefficient carrys out compensation temperature and increases the internal resistance R for leading to battery BATBBecome larger, to reduce driving circuit
U1 detects the error for flowing through the current value of battery BAT.
Fig. 3 is the circuit diagram of charging circuit in the present embodiment, which includes first diode D1, third
Capacitor C3,3rd resistor R3, the second diode D2 (the second diode D2 is zener diode), third diode D3, the 4th electricity
Hold C4, the 5th capacitor C5, the first triode Q1, the 6th capacitor C6, the 7th capacitor C7, the 4th diode D4, the 4th resistance R4, the
Two triode Q2, the 5th resistance R5, transformer T, the 5th diode D5, the 6th light emitting diode D6 and power output end Vo,
In, one end of the anode of first diode D1 connection 220V alternating current, the cathode of first diode D1 respectively with third capacitor C3
One end, one end of 3rd resistor R3, one end of the 4th resistance R4 connected with one end of the primary coil of transformer T, third electricity
Hold the other end of the other end connection 220V alternating current of C3, the other end of the 3rd resistor R3 yin with the second diode D2 respectively
One end connection of pole, one end of the 5th capacitor C5, the collector of the first triode Q1 and the 7th capacitor C7, the 7th capacitor C7's is another
One end is connect with the base stage of the second triode Q2, the anode of the second diode D2 one end and the three or two with the 4th capacitor C4 respectively
The anode of pole pipe D3 connects, the other end of the 4th capacitor C4 hair with the other end of third capacitor C3 and the first triode Q1 respectively
Emitter-base bandgap grading connection, the cathode of third diode D3 respectively with the other end of the 5th capacitor C5 and the feedback coil N2 of transformer T one
End connection.
The other end of 4th resistance R4 is another with the primary coil of the collector of the second triode Q2 and transformer T respectively
End connection, the base stage of the first triode Q1 connect with the cathode of the 4th diode D4, and the anode of the 4th diode D4 is respectively with the
The connection of one end of the emitter of two triode Q2 and the 5th resistance R5, the other end of the 5th resistance R5 respectively with the first triode Q1
Emitter connected with the other end of the feedback coil N2 of transformer T, one end of the secondary coil N3 of transformer T and the five or two pole
The anode of pipe D5 connects, the cathode of the 5th diode D5 respectively with one end of the 6th capacitor C6, the 6th diode D6 anode, store
The anode of battery BAT is connected with power output end Vo, and the other end of the primary coil of transformer T is another with the 6th capacitor C6 respectively
One end, the 6th diode D6 cathode connected with the cathode of battery BAT.In the present embodiment, the type of the 6th light emitting diode D6
Number be ZX-35288W42-1, certainly, in practical applications, the 6th light emitting diode D6 can also using other models have class
Like the light emitting diode of function.
The DC voltage that 220V alternating current obtains about 300V after first diode D1 is rectified and third capacitor C3 is filtered adds
On the primary coil N1 of transformer T, while this voltage leads it after 3rd resistor R3 adds biasing to the second triode Q2
It is logical, there is electric current to flow through the primary coil N1 of transformer T, while forming positive voltage on the feedback coil N2 of transformer T, this voltage warp
5th capacitor C5 feeds back to the second triode Q2, it is connected more, or even saturation, finally with the reduction of feedback current, the two or three
Pole pipe Q2 exits rapidly saturation and ends, and so circulation forms oscillation, induces on the secondary coil N3 of transformer T required
Output voltage.The feedback coil N2 of transformer T is simultaneously also together with third diode D3, the second diode D2, the 4th capacitor C4
Form voltage regulator circuit.When transformer T secondary coil N3 after the 5th diode D5 rectification voltage liter on the 6th capacitor C6
Gao Hou, while also showing as voltage of the feedback coil N2 of transformer T after third diode D4 rectification on the 4th capacitor C4
It is lower, when be down to about the second diode D2 pressure stabilizing value when, the second diode D2 conducting, make the second triode Q2 by base stage to
Ground, turns off the second triode Q2, and output voltage reduces.
The 5th resistance R5, the 4th diode D4 and the first triode Q1V form current foldback circuit in charging circuit 2.When
The operating current of second triode Q2 greatly too when, the voltage generated on the 5th resistance R5 adds to the one or three pole through the 4th diode D4
The base stage of pipe Q1, the first triode Q1 conducting, the base voltage decline of the second triode Q2 subtract the electric current of the second triode Q2
It is small.To change output voltage, as long as replacing the second diode D2 of different pressure stabilizing values, pressure stabilizing is worth smaller, output voltage
It is lower, it is on the contrary then higher.
In the present embodiment, under the action of the first metal-oxide-semiconductor M1 and the second metal-oxide-semiconductor M2, finger can be assigned to driving circuit U1
It enabling, the 6th light emitting diode D6 of driving shines, to make a response, play the role of display, meanwhile, the first metal-oxide-semiconductor M1, second
Metal-oxide-semiconductor M2, the first triode Q1 and the second triode Q2 cooperation can be with the distribution of driving current, therefore have charge prompting function
Energy, capable of protecting battery, so that it will not the charge lifetimes of battery BAT are reduced because of recharge.
The connector with charge prompting function has timing to stop charging, display charging and the function full of rear turn-off current
Energy.When the present invention charges to the battery in the terminals such as mobile phone to charging circuit for current charging cable, as long as by charge cable
Being connected to this connector with charge prompting function can be carried out charging, and common cable constantly charges, and will affect
The deficiency of its service life, there is the connector of charge prompting function can make phase according to the difference of detecting current charging situation for this
The display and power down function answered.
In the present embodiment, the first metal-oxide-semiconductor M1 and the second metal-oxide-semiconductor M2 are N-channel MOS pipe, the first triode Q1 and second
Triode Q2 is NPN type triode.Certainly, in practical applications, the first metal-oxide-semiconductor M1 and the second metal-oxide-semiconductor M2 can also be P
Channel MOS tube, the first triode Q1 and the second triode Q2 can also be PNP type triode, but the at this moment structure of circuit
It accordingly to change.
In the present embodiment, which further includes the 7th capacitor C7, one end of the 7th capacitor C7 and the first triode Q1
Collector connection, the other end of the 7th capacitor C7 connect with the base stage of the second triode Q2.7th capacitor C7 is coupled capacitor,
For preventing the interference between the first triode Q1 and the second triode Q2, to further enhance the safety of circuit and reliable
Property.It is noted that the capacitance of the 7th capacitor C7 is 500pF in the present embodiment, certainly, in practical applications, the 7th electricity
The capacitance for holding C7 can adjust accordingly as the case may be, that is, the capacitance of the 7th capacitor C7 can be according to specific
Situation is increased accordingly or is reduced.
In the present embodiment, which further includes the 7th diode D7, the anode and 3rd resistor of the 7th diode D7
One end of R3 connects, and the cathode of the 7th diode D7 is connect with one end of the 4th resistance R4.7th diode D7 is two pole of current limliting
Pipe, for carrying out current-limiting protection, further to enhance the safety and reliability of circuit.It is noted that the present embodiment
In, the model S-822T of the 7th diode D7, certainly, in practical applications, the 7th diode D7 can also use its alloytype
Number with similar functions diode.
In the present embodiment, which further includes the 6th resistance R6, and one end of the 6th resistance R6 is anti-with transformer T's
One end of feeder line circle N2 connects, and the other end of the 6th resistance R6 is connect with the other end of the 5th capacitor C5.6th resistance R6 is limited
Leakage resistance, for carrying out current-limiting protection, to further enhance current limitation effect.It is noted that in the present embodiment, the 6th resistance
The resistance value of R6 is 43k Ω, and certainly, in practical applications, the resistance value of the 6th resistance R6 can be adjusted accordingly as the case may be
It is whole, that is, the resistance value of the 6th resistance R6 can be increased accordingly or be reduced as the case may be.
In short, the present invention has the function of stopping charging after visual and detecting current is fully charged, which passes through
The USB male joint 12 of one end is connect with the power output end Vo of charging circuit 2, and the other end provides USB female seat 13, the USB female seat 13
It connect with charge cable 3, charges to battery BAT, in the electric current built in power connector 1 with prompt and detecting current function
Circuit for detecting 11, there is the connector of charge prompting function can prompt just in charging for this；It, should after battery BAT is fully charged
Connector with charge prompting function can be automatically stopped power supply, while have been filled with electricity by visual effect prompt, work as battery
BAT will not continue to power to battery BAT again after being completely filled with, thus play the role of protect battery BAT, so that it will not because
Recharge and the charge lifetimes for reducing battery BAT.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of connector with charge prompting function, which is characterized in that including power connector, charging circuit and charging cable
Cable, the charge cable are equipped with USB interface, the power output end company of one end of the power connector and the charging circuit
It connects, the other end of the power connector is connect with the USB interface, and the power connector is built-in with current-sensing circuit；
The current-sensing circuit includes the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, first resistor, second resistance, first capacitor, the second electricity
Appearance, battery and driving circuit, the grid of first metal-oxide-semiconductor and the grid of the second metal-oxide-semiconductor are connect with the driving circuit,
The drain electrode of first metal-oxide-semiconductor is connect with the charge cable, the source electrode ground connection of second metal-oxide-semiconductor, first metal-oxide-semiconductor
Source electrode is connect with the drain electrode of second metal-oxide-semiconductor, the anode of battery and one end of first resistor respectively, the first resistor
The other end is connect with the first detecting pin of one end of the second resistance, one end of the second capacitor and driving circuit respectively, institute
The cathode for stating battery connects with one end of the other end of the second resistance, the other end of the second capacitor and first capacitor respectively
It connects, the other end ground connection of the first capacitor；
The charging circuit includes first diode, third capacitor, 3rd resistor, the second diode, third diode, the 4th electricity
Appearance, the 5th capacitor, the first triode, the 6th capacitor, the 7th capacitor, the 4th diode, the 4th resistance, the second triode, the 5th
Resistance, transformer, the 5th diode, the 6th light emitting diode and power output end, the anode connection of the first diode
One end of 220V alternating current, the cathode of the first diode respectively with one end of the third capacitor, 3rd resistor one end,
One end of 4th resistance is connected with one end of the primary coil of transformer, and the other end of the third capacitor connects the 220V and hands over
The other end of galvanic electricity, the other end of the 3rd resistor respectively with the cathode of second diode, one end of the 5th capacitor,
The connection of one end of the collector of one triode and the 7th capacitor, the other end of the 7th capacitor and the base of second triode
Pole connection, the anode of second diode are connect with the anode of one end of the 4th capacitor and third diode respectively, institute
The other end for stating the 4th capacitor is connect with the emitter of the other end of the third capacitor and the first triode respectively, the third
The cathode of diode is connect with one end of the other end of the 5th capacitor and the feedback coil of transformer respectively；
The other end of 4th resistance is another with the primary coil of the collector of second triode and transformer respectively
End connection, the base stage of first triode are connect with the cathode of the 4th diode, the anode point of the 4th diode
Do not connect with one end of the emitter of second triode and the 5th resistance, the other end of the 5th resistance respectively with it is described
The other end of the feedback coil of the emitter and transformer of first triode connects, one end of the secondary coil of the transformer with
The anode of 5th diode connects, the cathode of the 5th diode respectively with one end of the 6th capacitor, the six or two
The anode of pole pipe, the anode of battery are connected with power output end, the other end of the primary coil of the transformer respectively with institute
The cathode of the other end, the 6th diode of stating the 6th capacitor is connected with the cathode of battery, the type of the 6th light emitting diode
Number be ZX-35288W42-1.
2. the connector according to claim 1 with charge prompting function, which is characterized in that the power connector
One end is equipped with USB male joint, and the USB male joint connect with the power output end of the charging circuit, the power connector it is another
One end is equipped with USB female seat, and the drain electrode of first metal-oxide-semiconductor is connect by the USB female seat with the USB interface.
3. the connector according to claim 2 with charge prompting function, which is characterized in that the charging circuit also wraps
Include the 7th capacitor, one end of the 7th capacitor is connect with the collector of first triode, the 7th capacitor it is another
End is connect with the base stage of second triode, and the capacitance of the 7th capacitor is 500pF.
4. the connector according to claim 3 with charge prompting function, which is characterized in that the charging circuit also wraps
The 7th diode is included, the anode of the 7th diode is connect with one end of the 3rd resistor, the yin of the 7th diode
Pole is connect with one end of the 4th resistance, the model S-822T of the 7th diode.
5. the connector according to claim 4 with charge prompting function, which is characterized in that the charging circuit also wraps
The 6th resistance is included, one end of the 6th resistance is connect with one end of the feedback coil of the transformer, the 6th resistance
The other end is connect with the other end of the 5th capacitor, and the resistance value of the 6th resistance is 43k Ω.
6. according to claim 1 to the connector described in 5 any one with charge prompting function, which is characterized in that described
First metal-oxide-semiconductor and the second metal-oxide-semiconductor are N-channel MOS pipe, and first triode and the second triode are NPN type triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810968345.4A CN108879907A (en) | 2018-08-23 | 2018-08-23 | A kind of connector with charge prompting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810968345.4A CN108879907A (en) | 2018-08-23 | 2018-08-23 | A kind of connector with charge prompting function |
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| Publication Number | Publication Date |
|---|---|
| CN108879907A true CN108879907A (en) | 2018-11-23 |
Family
ID=64321638
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810968345.4A Pending CN108879907A (en) | 2018-08-23 | 2018-08-23 | A kind of connector with charge prompting function |
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| Country | Link |
|---|---|
| CN (1) | CN108879907A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103764A (en) * | 2019-04-19 | 2019-08-09 | 恒大智慧充电科技有限公司 | Charging unit, charging method, computer equipment and storage medium |
| CN112086830A (en) * | 2020-07-23 | 2020-12-15 | 福建联迪商用设备有限公司 | Data line circuit communicating with Apple equipment |
-
2018
- 2018-08-23 CN CN201810968345.4A patent/CN108879907A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103764A (en) * | 2019-04-19 | 2019-08-09 | 恒大智慧充电科技有限公司 | Charging unit, charging method, computer equipment and storage medium |
| CN110103764B (en) * | 2019-04-19 | 2020-11-20 | 恒大智慧充电科技有限公司 | Charging device, charging method, computer device, and storage medium |
| CN112086830A (en) * | 2020-07-23 | 2020-12-15 | 福建联迪商用设备有限公司 | Data line circuit communicating with Apple equipment |
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