CN107579567A - A kind of alternating-current charging pile circuit of low-power consumption - Google Patents
A kind of alternating-current charging pile circuit of low-power consumption Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
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Abstract
The invention discloses a kind of alternating-current charging pile circuit of low-power consumption, including：Control module, charging module, detection module；The main control module, the signal that electricity and vehicle for acquisition testing module detection vehicle are connected with charging module, main control module are simultaneously instructed accordingly by being sent to induction signal to charging module；The detection module includes electric power detection unit, vehicle connecting detection unit；The electric power detection unit is used for the electricity for detecting Vehicular battery, and detection electric quantity signal is fed back into main control module；The vehicle connecting detection unit, whether the charging end for detecting vehicle is connected with charging module, and the signal after detection is fed back into main control module.The present invention have circuit simple, bottom power consumption, stably, it is safe the advantages of, and there is extensive production and application value in new energy charging pile field.
Description
Technical field
The present invention relates to the alternating-current charging pile electricity of new energy charging pile technical field, more particularly to a kind of low-power consumption
Road.
Background technology
With the consumption of fossil energy, various countries carry out the research of new energy technology already, find new energy resource supply mode,
Advocate energy-saving and emission-reduction.For China, due to the application of new technology, car ownership rises appreciably, and drastically increases life
Convenience, but also bring some side effects simultaneously, the problems such as causing environmental pollution and traffic congestion.Therefore, it is domestic at present
Progressively carry out many kinds of measures to alleviate the problem, input substantial contribution researches and develops new-energy automobile, and suitably to new energy in policy
Source automobile steering tilts, and encourages people's purchase and uses new-energy automobile.Wherein, Development of Electric Vehicles is particularly quick, popularity rate
Also step up, thus require certain charging auxiliary facility, be i.e. charging pile.
Existing charging pile, itself loss to electric energy of charging pile is bigger, and such charging pile easily generates heat, to car
Charging voltage it is also very unstable；Other charging pile is typically no that Vehicular charging electricity is supervised when to Vehicular charging
Control, so easily causes the reciprocal charging of Vehicular battery and influences the service life of battery and the loss to electric energy；Charging simultaneously
During can also have potential safety hazard.
The content of the invention
Defect present in for more than, the present invention provide a kind of simple circuit, bottom power consumption, stably, the low-power consumption of safety hands over
Current charge stake circuit.
Technical scheme is as follows：A kind of alternating-current charging pile circuit of low-power consumption, including：Main control module, charging mould
Block, detection module；
The main control module, the letter that electricity and vehicle for acquisition testing module detection vehicle are connected with charging module
Number, main control module is simultaneously instructed accordingly by being sent to induction signal to charging module；
The detection module includes electric power detection unit, vehicle connecting detection unit；The electric power detection unit is used to examine
The electricity of Vehicular battery is surveyed, and detection electric quantity signal is fed back into main control module；The vehicle connecting detection unit, for detecting
Whether the charging end of vehicle is connected with charging module, and the signal after detection is fed back into main control module；
The charging module, the charging module include first switch unit, second switch unit, the 3rd switch element,
Alternating current input block；The corresponding output end of the input connection main control module of the first switch unit, first switch unit
The corresponding control terminal of output the 3rd switch element of connection；The correspondence of the input connection main control module of the second switch unit is another
Output end, the corresponding control terminal of output the 3rd switch element of connection of second switch unit；The alternating current input block and
The input connection of three switch elements；The 3rd switch element output end is connected with Vehicular charging end；
After the main control module detects signal by vehicle connecting detection unit or electric power detection unit；Main control module is defeated
Go out command signal, control the closure of first switch unit or second switch unit, and logical first switch unit or second switch list
The closure of member, to control the closure of the 3rd switch element or disconnection；And alternating current input block is when the 3rd switch element closes,
Output exchange supplies electricity to Vehicular charging end.
Preferably, it is described when vehicle connecting detection unit is detecting vehicle connection end and the 3rd switch element output end company
When connecing；Main control module output signal, control first switch unit closure, while the 3rd switch element closes, alternating current input is single
First voltage is through the 3rd switch element to Vehicular charging；First switch unit disconnects under master control module controls simultaneously；It is described to work as electricity
When amount detection unit detection vehicle electricity is full of, when main control module output signal control second switch unit closes；3rd switch
Unit disconnects, while AC input cell disconnects and gives vehicle input voltage；Electric power detection unit disconnects under master control module controls.
Preferably, the main control module is set to MCU chip and its peripheral circuit；The pin of the MCU chip include 11 pin,
12 pin, 14 pin, 15 pin；11 pin, 12 pin are the output pin of MCU chip；14 pin, 15 pin are MCU chip
Input pin.
Preferably, the 3rd switch element is set to a magnetic latching relay, and the magnetic latching relay sets 1 end, 5 respectively
End, 6 ends, 8 ends, 9 ends；1 end is the first control terminal, one of the first coil inside the 1 end connection magnetic latching relay
End；8 end is the second control terminal, one end of the second coil inside the 8 end connection magnetic latching relay；The First Line
Circle, the second coil are all connected with 9 ends, and 9 end is the first control power end；6 end and 5 ends connect magnetic latching relay respectively
The both ends of internal switch.
Preferably, the first switch unit is set to first resistor, second resistance, the first release diode, first effect
Should pipe composition switch control circuit；The 12 pin connection of one end connection MCU chip of the first resistor, the other end of first resistor
The node being connected with second resistance, then be connected with the grid of the first FET；The drain electrode and first of first FET
Discharge diode cathode connection node, reconnect magnetic latching relay 1 end connection, the source electrode of first FET with
The other end ground connection of second resistance；The negative pole of the first release diode and 9 ends of magnetic latching relay connect.
Preferably, the second switch unit is set to 3rd resistor, the 4th resistance, the second release diode, second effect
Should pipe composition switch control circuit；11 pin of one end connection MCU chip of the 3rd resistor, the other end of 3rd resistor and the
The node of four resistance connection, then be connected with the grid of the second FET；The drain electrode of second FET and the second release
The node of diode cathode connection, reconnect the 8 ends connection of magnetic latching relay, the source electrode and the 4th of first FET
The other end ground connection of resistance；The negative pole of the first release diode and 9 ends of magnetic latching relay connect.
Preferably, 6 ends of the alternating current input block connection magnetic latching relay；The output of the magnetic latching relay
5 ends are used for connecting exterior vehicle charging end.
Preferably, the electric power detection unit is set to the electricity inspection of the 5th resistance, the 6th resistance, the first photo-coupler composition
Slowdown monitoring circuit；15 pin and the first optical coupling of the second control of 5th resistance one end connection power supply connection, the other end and MCU chip
The output end connection of device；One end connection the second control power supply of 6th resistance, other end connection and Vehicular charging end and the
The input connection of one photo-coupler.
Preferably, the vehicle connecting detection unit is set to the 7th resistance, the 8th resistance, the car of the second photo-coupler composition
Connection detection circuit；14 pin of described 7th resistance one end connection the second control power supply connection, the other end and MCU chip and the
The output end connection of two photo-couplers；One end connection the second control power supply of 8th resistance, other end connection and vehicle
The input of charging end and the second photo-coupler connects.
Such scheme is used, present invention has the advantages that：
(1), the present invention includes main control module, charging module, detection module, charging module therein, the charging module
Including first switch unit, second switch unit, the 3rd switch element, alternating current input block；The first switch unit
The corresponding output end of input connection main control module, the corresponding control terminal of output the 3rd switch element of connection of first switch unit；
Another output end of correspondence of the input connection main control module of the second switch unit, the output connection the 3rd of second switch unit
The corresponding control terminal of switch element；The alternating current input block is connected with the input of the 3rd switch；3rd switch is single
First output end is connected with Vehicular charging end；Such circuit design is simple, and the damage of electric energy is controlled by on-off mode
Consume low, charging pile will not generate heat in charging process in addition, greatly improve the stability of charging pile；
(2), detection module of the invention includes electric power detection unit, vehicle connecting detection unit；The electric power detection list
Member is used for the charge capacity for detecting Vehicular battery, and the electric quantity signal of detection is fed back into main control module；The vehicle connection inspection
Unit is surveyed, whether the charging end for detecting vehicle is connected with charging module, and the signal after detection is fed back into master control mould
Block；Charging of such circuit design to vehicle is monitored, and can effectively remind user to carry out the situation of Vehicular charging
Monitoring and the security for improving charging pile；
(3) after, main control module of the invention detects signal by vehicle connecting detection unit or electric power detection unit；It is main
Module output instruction signal is controlled, controls the closure of first switch unit or second switch unit, and logical first switch unit or the
The closure of two switch elements, to control the closure of the 3rd switch element or disconnection；And alternating current input block is single in the 3rd switch
During member closure, output exchange supplies electricity to Vehicular charging；Such design circuit can be monitored and to vehicle electrical to an electric charging
Pond carries out protective effect, and the loss to electric energy is also than relatively low in addition；Therefore the present invention have circuit simple, bottom power consumption, stably, peace
Full beneficial effect.
Brief description of the drawings
Fig. 1 is the circuit block diagram of the present invention；
Fig. 2 is the circuit theory diagrams of this practical main control module；
Fig. 3 is the circuit theory diagrams of the charging module of the present invention；
Fig. 4 is the circuit theory diagrams of the vehicle connecting detection unit of the present invention；
Fig. 5 is the circuit theory diagrams of the electric power detection unit of the present invention.
Reference；Main control module 1；Charging module 2；First switch unit 211；Alternating current input block 22；3rd opens
Close the second switch unit 24 of unit 23；Vehicle connection end 3；Detection module 4；Electric power detection unit 41；Vehicle connecting detection unit
42；
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail；
As shown in Figures 1 to 5：A kind of alternating-current charging pile circuit of low-power consumption is present embodiments provided,
Technical scheme is as follows：A kind of alternating-current charging pile circuit of low-power consumption, including；Main control module 1, charging mould
Block 2, detection module 4；
The main control module 1, the letter that electricity and vehicle for acquisition testing module detection vehicle are connected with charging module 2
Number, main control module 1 and by sending corresponding instruction to charging module 2 to induction signal；
The detection module 4 includes electric power detection unit 41, vehicle connecting detection unit 42；The electric power detection unit 41
Main control module 1 is fed back to for detecting the electricity of Vehicular battery, and by detection electric quantity signal；The vehicle connecting detection unit
42, for detecting whether Vehicular charging end 3 is connected with charging module 2, and the signal after detection is fed back into main control module 1.
The charging module 2, the charging module 2 includes first switch unit 21, second switch unit the 24, the 3rd switchs
Unit 23, alternating current input block 22；The corresponding output end of the input connection main control module 1 of the first switch unit 21, the
The corresponding control terminal of output the 3rd switch element 23 of connection of one switch element 21；The input connection of the second switch unit 24
Another output end of correspondence of main control module 1, the corresponding control terminal of output the 3rd switch element 23 of connection of second switch unit 24；
The alternating current input block 22 is connected with the input of the 3rd switch element 23；The output end of 3rd switch element 23 and car
Charging end 3 connects；
After the main control module 1 detects signal by vehicle connecting detection unit 42 or electric power detection unit 41；Master control
The closure of the output instruction signal of module 1, control first switch unit 21 or second switch unit 24, and logical first switch unit 21
Or the closure of second switch unit 24, to control the closure of the 3rd switch element 23 or disconnection；And alternating current input block 22 exists
When 3rd switch element 23 closes, output exchange supplies electricity to Vehicular charging end 3.
It is described when vehicle connecting detection unit 42 is detecting that Vehicular charging end 3 is connected with the output end of the 3rd switch element 23
When；The output signal of main control module 1, control first switch unit 21 closes, while the 3rd switch element 23 closes, alternating current input
Unit 22 exports AC220V through the 3rd switch element to Vehicular charging end 3；First switch unit 21 controls in main control module 1 simultaneously
Lower disconnection；It is described when electric power detection unit 41 detect vehicle electricity be full of when, the output signal of main control module 1 control second switch list
When member 24 closes；3rd switch element 23 disconnects, while AC input cell 3 disconnects and inputs AC220V to vehicle；Electric power detection
Unit 41 disconnects under the control of main control module 1.
The main control module 1 is set to MCU chip U3 and its peripheral circuit；The pin of the MCU chip U3 includes 11 pin, 12
Pin, 14 pin, 15 pin；11 pin, 12 pin are MCU chip U3 output pin；14 pin, 15 pin are MCU chip U3
Input pin.
3rd switch element 23 is set to a magnetic latching relay JK2, the magnetic latching relay JK2 set respectively 1 end,
5 ends, 6 ends, 8 ends, 9 ends；1 end is the first control terminal, the first coil inside the 1 end connection magnetic latching relay JK2
One end；8 end is the second control terminal, one end of the second coil inside the 8 end connection magnetic latching relay JK2；Institute
State first coil, the second coil is all connected with 9 ends, 9 end is that first to control power supply terminal voltage be DC2V；6 end and 5 ends point
Not Lian Jie magnetic latching relay JK2 internal switches both ends；
The first switch unit 21 is set to first resistor R3, second resistance R4, the first release diode D2, first effect
Should pipe Q2 composition switch control circuit；One end connection MCU chip U3 of the first resistor R3 12 pin connection, first resistor R3
The node that is connected with second resistance R4 of the other end, then be connected with the first FET Q2 grid；First FET
The node that Q2 drain electrode is connected with the first release diode D2 positive poles, magnetic latching relay JK2 1 end connection is reconnected, it is described
First FET Q2 source electrode is grounded with the second resistance R4 other end；The negative pole of the first release diode D2 is protected with magnetic
Hold relay JK2 9 ends connection.
The second switch unit 4 is set to 3rd resistor R6, the 4th resistance R5, the second release diode D3, second effect
Should pipe Q3 composition switch control circuit；11 pin of one end connection MCU chip of the 3rd resistor R6,3rd resistor R6's is another
The node being connected with the 4th resistance R5 is held, then is connected with the second FET Q3 grid；The leakage of the second FET Q3
The node that pole is connected with the second release diode D3 positive poles, 8 ends for reconnecting magnetic latching relay JK2 connect, described first
Effect pipe Q3 source electrode and the 4th resistance R5 other end are grounded；The negative pole of the first release diode D3 keeps relay with magnetic
Device JK2 9 ends connection.
The alternating current input block 22 connects magnetic latching relay JK2 6 ends；The magnetic latching relay Jk2's is defeated
Go out 5 ends to be used for connecting exterior vehicle charging end 3.
The electric power detection unit 41 is set to the 5th resistance R25, the 6th resistance R26, the electricity of the first photo-coupler U7 compositions
Amount detection circuit；The second control of 5th resistance R25 one end connection power supply DC5V connections, the other end and the 15 of MCU chip U3
Pin and the first photo-coupler U7 output end connect；One end connection second of the 6th resistance R26 controls power supply DC5V, another
End connection is connected with the photo-coupler U7 of Vehicular charging end 3 and first input.
The vehicle connecting detection unit 42 is set to the 7th resistance R16, the 8th resistance R17, the second photo-coupler U6 compositions
Vehicle connection detection circuit；The second control of 7th resistance R16 one end connection power supply DC5V connections, the other end and MCU core
Piece U3 14 pin and the second photo-coupler U6 an output end connect；One end connection the second control electricity of the 8th resistance R17
Source DC5V, other end connection are connected with the photo-coupler U6 of Vehicular charging end 3 and second input.
Embodiment 1：
As shown in Figures 1 to 5：The operation principle of the present invention is as follows；
(1), when magnetic latching relay JK2 5 ends are connected with Vehicular charging end 3, the of vehicle connecting detection unit 42
The electric signal of eight resistance R17 access vehicle connections；Second photo-coupler U6 conductings simultaneously, the second control power supply DC5V is through the 7th electricity
14 pin for hindering R16 to MCU chip U3 provide high level；MCU chip U3 12 pin output high level, and through first switch unit 21
First resistor R3 be input to the first FET Q2 grid；First FET Q2 saturation conductions；
(2) while magnetic latching relay JK2 9 pin and the electric current of 1 pin flow through first coil, in magnetic latching relay JK2
6 ends of portion's switch are connected with 5 ends closure；Alternating current input block 22 inputs AC220V through magnetic latching relay Jk2 6 ends and 5
End, exports and is carried out to vehicle connection end to Vehicular charging；Worked 3 seconds or so time in first coil, MCU chip U3 14 pin
Be changed into low level, do not need MCU chip U3 14 pin be high level voltage under, the magnetic latching relay JK2 end of internal switch 6
On-state is still remained closed with 5 ends；Simultaneously first coil when power is off caused pulse voltage through the pole of the first afterflow two
Pipe D2 is absorbed；
(3), when vehicle is fully charged, the 6th resistance R26 one end and the second photo-coupler U7 high electricity of input access
It is flat；Second photo-coupler U7 is turned on, and the second control power supply DC5V provides high electricity through the 5th resistance R25 to MCU chip U3 15 pin
It is flat；MCU chip U3 11 pin output is high level simultaneously, and the 3rd resistor R6 through second switch unit 24, the second field-effect
During pipe Q3 grids；Second FET Q3 is turned on,
(4), magnetic latching relay JK2 9 ends and the electric current at 3 ends flow through the second coil, while magnetic latching relay JK2
The end of internal switch 6 and 5 ends disconnect, and now the AC220V of alternating current input block 22 stops powering to vehicle；
(4), MCU chip U3 11 pin export high level after 3 seconds or so, and MCU chip U3 11 pin level are reduced to low level；
When not needing MCU chip U3 11 pin output to be high level, 6 ends and 5 ends of magnetic latching relay JK2 internal switch are still
Remain off；In the second coil blackout, caused pulse voltage is absorbed through the second sustained diode 3.
Embodiment 2：
As shown in Figures 1 to 5：Power consumption of the present invention in charging process is as follows；
(1), magnetic latching relay JK2 end points power consumption：P1=IL*IL*Rcd, IL represent to flow through the exchange of relay end points
Electric current, Rcd represent the contact impedance at magnetic latching relay JK2 ends, and the general very little of end points impedance is milliohm level, and power consumption is zero point
Several watts, contact loss is not very big；
(2), magnetic latching relay JK2 coil power dissipations：P2=12V*12V/Rxq, 12V are the supply voltage of coil, and Rxq is
Magnetic latching relay JK2 coil resistance, resistance are usually tens Europe to hundred Europe, because the coil electricity time is very short only 3 seconds
Clock or so, no matter it is off or connects, all only 3 seconds or so, therefore power consumption is fairly small, be can be ignored；
(3), total power consumption is：P=P1+P2=IL*IL*Rcd+12V*12V/Rxq
P2 ignores, P=P1, main power consumption on magnetic latching relay JK2 contact, greatly reduce magnetic keep after
Power consumptions of the electrical equipment JK2 in charging process, reduce caused heat in charging pile charging process, ensure that the safety of charging pile
Property, stability.
These are only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
All any modification, equivalent and improvement made within principle etc., should be included in the scope of the protection.
Claims (9)
- A kind of 1. alternating-current charging pile circuit of low-power consumption, it is characterised in that including：Main control module, charging module, detection module；The main control module, the signal that electricity and vehicle for acquisition testing module detection vehicle are connected with charging module are main Control module and by sending corresponding instruction to charging module to induction signal；The detection module includes electric power detection unit, vehicle connecting detection unit；The electric power detection unit is used to detect car The electricity of battery, and detection electric quantity signal is fed back into main control module；The vehicle connecting detection unit, for detecting vehicle Charging end whether be connected with charging module, and the signal after detection is fed back into main control module；The charging module, the charging module include first switch unit, second switch unit, the 3rd switch element, exchange Electric input block；The corresponding output end of the input connection main control module of the first switch unit, the output of first switch unit Connect the corresponding control terminal of the 3rd switch element；Another output of correspondence of the input connection main control module of the second switch unit End, the corresponding control terminal of output the 3rd switch element of connection of second switch unit；The alternating current input block is opened with the 3rd Close the input connection of unit；The 3rd switch element output end is connected with Vehicular charging end；After the main control module detects signal by vehicle connecting detection unit or electric power detection unit, main control module output refers to Make signal, control the closure of first switch unit or second switch unit, and logical first switch unit or second switch unit Closure, to control the closure of the 3rd switch element, disconnection, and alternating current input block respectively when the 3rd switch element closes, Output exchange supplies electricity to Vehicular charging end.
- 2. the alternating-current charging pile circuit of low-power consumption according to claim 1, it is characterised in that：It is described to work as vehicle connecting detection Unit is when detecting that vehicle connection end is connected with the 3rd switch element output end, main control module output signal, and control first is opened Unit closure is closed, while the 3rd switch element closes, alternating current input block voltage is through the 3rd switch element to Vehicular charging；Together When first switch unit disconnected under master control module controls；It is described when electric power detection unit detection vehicle electricity be full of when, master control During module output signal control second switch unit closure；3rd switch element is disconnected, while AC input cell is disconnected to car Input voltage；Electric power detection unit disconnects under master control module controls.
- 3. the alternating-current charging pile circuit of low-power consumption according to claim 2, it is characterised in that：The main control module is set to MCU chip and its peripheral circuit；The pin of the MCU chip includes 11 pin, 12 pin, 14 pin, 15 pin；11 pin, 12 pin are equal For the output pin of MCU chip；14 pin, 15 pin are the input pin of MCU chip.
- 4. the alternating-current charging pile circuit of low-power consumption according to claim 3, it is characterised in that：3rd switch element is set For a magnetic latching relay, the magnetic latching relay sets 1 end, 5 ends, 6 ends, 8 ends, 9 ends respectively；1 end is the first control End, 1 end connect one end of the first coil inside magnetic latching relay；8 end is the second control terminal, and 8 end connects Connect one end of the second coil inside magnetic latching relay；The first coil, the second coil are all connected with 9 ends, and 9 end is the One control power end；6 end and 5 ends connect the both ends of magnetic latching relay internal switch respectively.
- 5. the alternating-current charging pile circuit of low-power consumption according to claim 4, it is characterised in that：The first switch unit is set The switch control circuit formed for first resistor, second resistance, the first release diode, the first FET；The first resistor One end connection MCU chip the connection of 12 pin, the node that the other end of first resistor is connected with second resistance, then imitated with first Should pipe grid connection；The node that the drain electrode of first FET is connected with the first release diode cathode, reconnects magnetic The 1 end connection of guard relay, the source electrode of first FET and the other end of second resistance are grounded；First release The negative pole of diode and 9 ends of magnetic latching relay connect.
- 6. the alternating-current charging pile circuit of low-power consumption according to claim 5, it is characterised in that：The second switch unit is set The switch control circuit formed for 3rd resistor, the 4th resistance, the second release diode, the second FET；The 3rd resistor One end connection MCU chip 11 pin, the node that the other end of 3rd resistor is connected with the 4th resistance, then with the second FET Grid connection；The node that the drain electrode of second FET is connected with the second release diode cathode, reconnects magnetic and keeps The 8 ends connection of relay, the source electrode of first FET and the other end of the 4th resistance are grounded；First release, two poles The negative pole of pipe and 9 ends of magnetic latching relay connect.
- 7. the alternating-current charging pile circuit of low-power consumption according to claim 6, it is characterised in that：The alternating current input block Connect 6 ends of magnetic latching relay；The end of output 5 of the magnetic latching relay is used for connecting exterior vehicle charging end.
- 8. the alternating-current charging pile circuit of low-power consumption according to claim 7, it is characterised in that：The electric power detection unit is set The electric quantity detecting circuit formed for the 5th resistance, the 6th resistance, the first photo-coupler；The control of 5th resistance one end connection second Power supply connection processed, the output end connection of 15 pin and the first photo-coupler of the other end and MCU chip；One end of 6th resistance The control power supply of connection second, other end connection are connected with the input at Vehicular charging end and the first photo-coupler.
- 9. the alternating-current charging pile circuit of low-power consumption according to claim 8, it is characterised in that：The vehicle connecting detection list Member is set to the 7th resistance, the 8th resistance, the vehicle connection detection circuit of the second photo-coupler composition；Described 7th resistance one end connects Connect the connection of the second control power supply, the output end connection of 14 pin and the second photo-coupler of the other end and MCU chip；Described 8th One end connection the second control power supply of resistance, other end connection are connected with the input at Vehicular charging end and the second photo-coupler.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710885074.1A CN107579567A (en) | 2017-09-26 | 2017-09-26 | A kind of alternating-current charging pile circuit of low-power consumption |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710885074.1A CN107579567A (en) | 2017-09-26 | 2017-09-26 | A kind of alternating-current charging pile circuit of low-power consumption |
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| CN201710885074.1A Pending CN107579567A (en) | 2017-09-26 | 2017-09-26 | A kind of alternating-current charging pile circuit of low-power consumption |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108790895A (en) * | 2018-06-21 | 2018-11-13 | 深圳市核达中远通电源技术股份有限公司 | A kind of structure and control method of alternating-current charging pile that opening control based on relay zero |
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