CN107719273B - Charging battery of electric vehicle protects circuit - Google Patents
Charging battery of electric vehicle protects circuit Download PDFInfo
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- CN107719273B CN107719273B CN201710833825.5A CN201710833825A CN107719273B CN 107719273 B CN107719273 B CN 107719273B CN 201710833825 A CN201710833825 A CN 201710833825A CN 107719273 B CN107719273 B CN 107719273B
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- triode
- resistance
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- voltage
- relay
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
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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
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The present invention provides charging battery of electric vehicle and protects circuit; it is related to battery charging field; including input terminal 1, input terminal 2, output end 3 and output end 4; the input terminal 1 is connected to 2 feet of relay J1-1, and the output end 3 is connected to one end of one end of resistance R1,3 feet of relay J1-1, one end of resistance R4, one end of resistance R7, the collector of triode Q2, the collector of triode Q3, the collector of triode Q5, one end of resistance R11 and relay J1；The present invention is charged normal in electric car charger to battery, after a certain time, battery will be filled, and then electric car charger continues to carry out constant-current charge to battery, that is, enter battery float state, until battery is completely filled with electricity, make disconnecting with battery for electric car charger, so that battery charging connection is disconnected, it is automatic after keeping battery fully charged to disconnect charging, it prevents that battery is overcharged and is generated heat, extends the service life of battery.
Description
Technical field
The present invention relates to battery of electric vehicle fields, and in particular to charging battery of electric vehicle protects circuit.
Background technique
Electric car is, by motor drive traveling, no longer to generate new pollution using electricity as the energy, is no longer generated easy
Combustion, explosive hidden danger are to solve current energy shortages important means contradictory with economic development.With electric vehicle engineering into
Step, electric car society ownership are continuously increased, for asking for the security performance of electric car, especially charging secure context
Topic is more concerned.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides charging battery of electric vehicle to protect circuit, prevents battery excessive
It charges and generates heat.
In order to achieve the above object, the present invention is achieved by the following technical programs: charging battery of electric vehicle protects circuit,
Including input terminal 1, input terminal 2, output end 3 and output end 4, the input terminal 1 is connected to 2 feet of relay J1-1, described defeated
Outlet 3 is connected to one end of resistance R1,3 feet of relay J1-1, one end of resistance R4, one end of resistance R7, triode Q2
Collector, the collector of triode Q3, the collector of triode Q5, one end of resistance R11 and relay J1 one end, the electricity
Resistance R4 the other end be connected to one end of resistance R3,8 feet of voltage comparator ic 1, zener diode VD1 cathode, it is described defeated
Outlet 4 is connected respectively to the other end of resistance R3 and 2 feet of voltage comparator ic 1 after resistance R5；The resistance R1's is another
End is connected to 3 feet of one end of resistance R2, voltage comparator ic 1, and the input terminal 2 is connected to the another of output end 4 and resistance R2
One end, 1 foot of the voltage comparator ic 1 are connected to the base stage of triode Q1, the collector of the triode Q1 through resistance R6
It is connected to the other end of resistance R7, the base stage of triode Q2, the emitter of the triode Q2 is connected to triode through resistance R8
The base stage of Q3, the emitter of the triode Q3 are connected to the base stage of triode Q5, the transmitting of the triode Q5 through resistance R9
Pole is connected to the base stage of triode Q6 through resistance R10, and the collector of the triode Q6 is connected to the other end and three of resistance R11
The base stage of pole pipe Q7, the collector of the triode Q7 are connected to the other end of relay J1 and the collector of triode Q4, institute
The base stage for stating triode Q4 is connected to 1 foot of relay J1-1.
Preferably, the model LM393 of the voltage comparator ic 1.
Preferably, the output end 4 is grounded, the 4 feet ground connection of the voltage comparator ic 1, the triode Q1, triode
The emitter ground connection of Q4, triode Q6, triode Q7, the emitter of the triode Q2 are connected to capacitor C1 anode and pass through electricity
Hold C1 ground connection, the plus earth of the zener diode VD1.
Preferably, the output end 3 and output end 4 are connected on the anode and negative terminal of the battery in electric vehicle, institute
It states input terminal 1 and input terminal 2 is connected to the 48V charging plug of electric car charger.
Preferably, 1 foot of the relay J1-1 is normally opened contact, and 3 feet are normally-closed contact.
The present invention provides charging battery of electric vehicle to protect circuit, and electric car charger is charged normal to battery, certain
After time, battery will be filled, and then electric car charger continues to carry out constant-current charge to battery, that is, enter battery float shape
State makes disconnecting with battery for electric car charger, to disconnect battery charging connection, makes battery until battery is completely filled with electricity
It is automatic after fully charged to disconnect charging, it prevents battery to be overcharged and generate heat, extends the service life of battery.
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 electrical block diagram of the invention.
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 description of the invention, it should be noted that the orientation of the instructions such as term "vertical", "upper", "lower", "horizontal" or
Person's positional relationship is orientation based on the figure or positional relationship, is merely for convenience of this practical and simplified description of description,
Rather than the device or element of instruction or hint meaning must have a particular orientation, and are constructed and grasped with specific orientation
Make, therefore is not considered as limiting the invention.In addition, " first ", " second ", " third ", " the 4th " are only used for description mesh
, and should not be understood as indicating or implying relative importance.
In description of the invention, it is also necessary to explanation, unless otherwise specific regulation and limitation, term " setting ", " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection, can be mechanical connection, is also possible to be electrically connected, can be and be directly connected to, and be also possible to be connected by intermediary, can
To be the connection inside two elements.For the ordinary skill in the art, can understand as the case may be above-mentioned
The concrete meaning of term in the present invention.
Embodiment 1:
As shown in Figure 1, charging battery of electric vehicle protects circuit, including input terminal 1, input terminal 2, output end 3 and output end
4, the input terminal 1 is connected to 2 feet of relay J1-1, and the output end 3 is connected to one end of resistance R1, relay J1-1
3 feet, one end of resistance R4, one end of resistance R7, the collector of triode Q2, the collector of triode Q3, triode Q5 collection
Electrode, one end of resistance R11 and relay J1 one end, the other end of the resistance R4 is connected to one end of resistance R3, voltage
The cathode of 8 feet of comparator IC1, zener diode VD1, the output end 4 are connected respectively to the another of resistance R3 after resistance R5
2 feet of one end and voltage comparator ic 1；The other end of the resistance R1 is connected to one end of resistance R2, voltage comparator ic 1
3 feet, the input terminal 2 are connected to the other end of output end 4 and resistance R2, and 1 foot of the voltage comparator ic 1 connects through resistance R6
It is connected to the base stage of triode Q1, the collector of the triode Q1 is connected to the base stage of the other end of resistance R7, triode Q2, institute
The emitter for stating triode Q2 is connected to the base stage of triode Q3 through resistance R8, and the emitter of the triode Q3 connects through resistance R9
It is connected to the base stage of triode Q5, the emitter of the triode Q5 is connected to the base stage of triode Q6, three pole through resistance R10
The collector of pipe Q6 is connected to the other end of resistance R11 and the base stage of triode Q7, and the collector of the triode Q7 is connected to
The base stage of the other end of relay J1 and the collector of triode Q4, the triode Q4 is connected to 1 foot of relay J1-1.
Preferably, the model LM393 of the voltage comparator ic 1.
Preferably, the output end 4 is grounded, the 4 feet ground connection of the voltage comparator ic 1, the triode Q1, triode
The emitter ground connection of Q4, triode Q6, triode Q7, the emitter of the triode Q2 are connected to capacitor C1 anode and pass through electricity
Hold C1 ground connection, the plus earth of the zener diode VD1.
Preferably, the output end 3 and output end 4 are connected on the anode and negative terminal of the battery in electric vehicle, institute
It states input terminal 1 and input terminal 2 is connected to the 48V charging plug of electric car charger.
Preferably, 1 foot of the relay J1-1 is normally opened contact, and 3 feet are normally-closed contact.
The present invention provides charging battery of electric vehicle to protect circuit, and electric car charger is charged normal to battery, certain
After time, battery will be filled, and then electric car charger continues to carry out constant-current charge to battery, that is, enter battery float shape
State makes disconnecting with battery for electric car charger, to disconnect battery charging connection, makes battery until battery is completely filled with electricity
It is automatic after fully charged to disconnect charging, it prevents battery to be overcharged and generate heat, extends the service life of battery.
The principle of the present apparatus:
The DC48 output end 3 of electric vehicle charge protector and output end 4 are being connected to the battery in electric vehicle just first
On pole and negative terminal, the anode voltage in electric vehicle is depressured through resistance R4 through zener diode VD1 pressure stabilizing all the way at this time
The circuit power supply of 12V voltage service voltage comparator IC1 is exported afterwards, and in addition 12V voltage is defeated after resistance R3 and resistance R5 partial pressure
3V voltage is connected to 2 feet of voltage comparator ic 1 out, and 48V voltage is connected to voltage after R1 resistance and R5 electric resistance partial pressure all the way
3 feet of comparator IC1, at this time because battery of electric vehicle voltage is in 48V~50V, 3 foot voltages of voltage comparator ic 1 are 2.5V, low
Low level is exported in 1 foot of the voltage of its 2 foot, voltage comparator ic 1, makes triode Q1 cut-off, triode Q2 conducting, triode
Q2 emitter exports high level and charges to capacitor C1, while triode Q3 is connected through R8 resistance, the output of triode Q3 emitter
High level is connected to the base stage of triode Q6 through R10 resistance, and triode Q6 is connected, and ends triode Q7, relay J1 is not
It is attracted.
When electric vehicle needs to charge, at this time when the 48V charging plug of electric car charger is connected to the electricity in electric vehicle
After pond input terminal 1 and input terminal 2, the anode of the DC48V voltage of electric car charger is connected to input terminal 1, through relay J1-1
2 foot of normally-closed contact and the connection of 3 feet after be connected to anode output end 3 in electric vehicle, the 48V voltage of electric car charger
Negative input 2 be connected with the output end 4 of battery.Electric car charger is charged normal to battery at this time, in certain time
Afterwards, battery will be filled, and cell voltage will rise to 55V or so at this time, and the voltage on battery is through R1 resistance and R2 electricity at this time
3 feet that 3.5V or so voltage is connected to voltage comparator ic 1 are exported after resistance partial pressure, and 2 foot voltages of voltage comparator ic 1 are solid
Determine that 3V voltage is constant, 1 foot of voltage comparator ic 1 exports high level at this time, is connected to triode Q1 base stage through resistance R6, makes three
Pole pipe Q1 conducting, is connected triode Q2, but be connected to the base of triode Q3 after being fully charged at this time because of capacitor C1 through R8 resistance
Pole electric discharge, is held on triode Q3, triode Q5, triode Q6, triode Q7 is still in off state, and relay J1 is not
It is attracted, makes electric car charger continue to carry out constant-current charge to battery, that is, enter battery float state, be completely filled with battery
Electricity, with the time be one hour after, capacitor C1 electricity discharged, because 1 foot of voltage comparator ic 1 still exports high level, make three
Pole pipe Q1, triode Q2 cut-off end triode Q3, triode Q5 and triode Q6 at this time again because capacitor C1 is discharged,
At this time because triode Q7 is connected in the voltage on resistance R11, relay J1 is attracted, and makes 1 foot of normally opened contact and 2 of relay J1-1
Foot is attracted connection, disconnects 3 foot of normally-closed contact of relay J1-1, makes the 48V cathode voltage and anode of electric car charger
It disconnects, so that battery charging connection is disconnected, it is automatic after keeping battery fully charged to disconnect charging, prevent battery to be overcharged and send out
Heat extends the service life of battery, after the normally opened contact of relay J1-1 is attracted, the high electricity of 1 foot output of relay J1-1
Mean longitude resistance R12 is connected to the base stage of triode Q4, and triode Q4 is connected, and relay J1 is made to keep attracting state, electric vehicle
Battery be not electrically charged.
After pulling out the 48V output plug of electric car charger, triode Q4 cut-off, at this time as battery of electric vehicle is lower than
When 55V or less, when 3 feet of voltage comparator ic 1 are lower than 3V, 1 foot of voltage comparator ic 1 will export low level, make triode
Q1 cut-off, keeps triode Q2, triode Q3, triode Q5, triode Q6 in the conductive state, ends triode Q7, relay
Device J1 is not attracted, and charges normal battery of electric vehicle.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (5)
1. charging battery of electric vehicle protects circuit, which is characterized in that including input terminal 1, input terminal 2, output end 3 and output end 4,
The input terminal 1 is connected to 2 feet of relay J1-1, the output end 3 be connected to one end of resistance R1, relay J1-1 3
Foot, one end of resistance R4, one end of resistance R7, the collector of triode Q2, the collector of triode Q3, triode Q5 current collection
Pole, one end of resistance R11 and relay J1 one end, the other end of the resistance R4 is connected to one end of resistance R3, voltage ratio
The cathode of 8 feet, zener diode VD1 compared with device IC1, the output end 4 are connected respectively to the another of resistance R3 after resistance R5
2 feet at end and voltage comparator ic 1；The other end of the resistance R1 be connected to one end of resistance R2, voltage comparator ic 13
Foot, the input terminal 2 are connected to the other end of output end 4 and resistance R2, and 1 foot of the voltage comparator ic 1 connects through resistance R6
It is connected to the base stage of triode Q1, the collector of the triode Q1 is connected to the base stage of the other end of resistance R7, triode Q2, institute
The emitter for stating triode Q2 is connected to the base stage of triode Q3 through resistance R8, and the emitter of the triode Q3 connects through resistance R9
It is connected to the base stage of triode Q5, the emitter of the triode Q5 is connected to the base stage of triode Q6, three pole through resistance R10
The collector of pipe Q6 is connected to the other end of resistance R11 and the base stage of triode Q7, and the collector of the triode Q7 is connected to
The base stage of the other end of relay J1 and the collector of triode Q4, the triode Q4 is connected to 1 foot of relay J1-1；
First by the DC48 output end 3 of electric vehicle charge protector and output end 4 be connected to anode in electric vehicle and
On negative terminal, the anode voltage in electric vehicle is defeated after zener diode VD1 pressure stabilizing through resistance R4 decompression all the way at this time
The circuit power supply of 12V voltage service voltage comparator IC1 out, in addition 12V voltage exports 3V after resistance R3 and resistance R5 partial pressure
Voltage is connected to 2 feet of voltage comparator ic 1, and 48V voltage is connected to voltage after R1 resistance and R5 electric resistance partial pressure and compares all the way
3 feet of device IC1, at this time because battery of electric vehicle voltage is in 48V~50V, 3 foot voltages of voltage comparator ic 1 are 2.5V, are lower than it
1 foot of the voltage of 2 feet, voltage comparator ic 1 exports low level, makes triode Q1 cut-off, triode Q2 conducting, triode Q2 hair
Emitter-base bandgap grading exports high level and charges to capacitor C1, while triode Q3 is connected through R8 resistance, the high electricity of triode Q3 emitter output
Mean longitude R10 resistance is connected to the base stage of triode Q6, and triode Q6 is connected, and ends triode Q7, and relay J1 is not attracted；
When electric vehicle needs to charge, at this time when to be connected to the battery in electric vehicle defeated for the 48V charging plug of electric car charger
After entering end 1 and input terminal 2, the anode of the DC48V voltage of electric car charger is connected to input terminal 1, through the normal of relay J1-1
The anode output end 3 being connected in electric vehicle after 2 foot of closed contact and the connection of 3 feet, the 48V voltage of electric car charger are born
Pole input terminal 2 is connected with the output end 4 of battery；Electric car charger is charged normal to battery at this time, after a certain time, electricity
Pond will be filled, and cell voltage will rise to 55V or so at this time, and the voltage on battery is through R1 resistance and R2 electric resistance partial pressure at this time
3 feet that 3.5V or so voltage is connected to voltage comparator ic 1 are exported afterwards, and 2 foot voltages of voltage comparator ic 1 are fixed 3V electricity
Press it is constant, at this time voltage comparator ic 11 foot export high level, be connected to triode Q1 base stage through resistance R6, make triode Q1
Triode Q2 is connected in conducting, but the base stage for being connected to triode Q3 through R8 resistance after being fully charged at this time because of capacitor C1 is discharged,
It is held on triode Q3, triode Q5, triode Q6, triode Q7 is not attracted, makes still in off state, relay J1
Electric car charger continue to battery carry out constant-current charge, that is, enter battery float state, so that battery is completely filled with electricity, with when
Between for after one hour, the electricity of capacitor C1 is discharged, because 1 foot of voltage comparator ic 1 still exports high level, make triode Q1, three
Pole pipe Q2 cut-off ends triode Q3, triode Q5 and triode Q6, at this time because of electricity at this time again because capacitor C1 is discharged
Triode Q7 is connected in voltage on resistance R11, and relay J1 is attracted, and is attracted 1 foot of normally opened contact of relay J1-1 and 2 feet and connects
It connects, disconnects 3 foot of normally-closed contact of relay J1-1, disconnect the 48V cathode voltage of electric car charger and anode, thus
Battery charging connection is disconnected, it is automatic after keeping battery fully charged to disconnect charging, it prevents battery to be overcharged and generate heat, extends electricity
The service life in pond, after the normally opened contact of relay J1-1 is attracted, the 1 foot output high level of relay J1-1 is through resistance R12
It is connected to the base stage of triode Q4, triode Q4 is connected, relay J1 is made to keep attracting state, battery of electric vehicle is not being filled
Electricity；
After pulling out the 48V output plug of electric car charger, triode Q4 cut-off, at this time as battery of electric vehicle lower than 55V with
When lower, when 3 feet of voltage comparator ic 1 are lower than 3V, 1 foot of voltage comparator ic 1 will export low level, cut triode Q1
Only, make triode Q2, triode Q3, triode Q5, triode Q6 in the conductive state, end triode Q7, relay J1
It is not attracted, charges normal battery of electric vehicle.
2. charging battery of electric vehicle as described in claim 1 protects circuit, which is characterized in that the voltage comparator ic 1
Model LM393.
3. charging battery of electric vehicle as described in claim 1 protects circuit, which is characterized in that the output end 4 is grounded, described
4 feet of voltage comparator ic 1 are grounded, the emitter ground connection of the triode Q1, triode Q4, triode Q6, triode Q7, institute
The emitter for stating triode Q2 is connected to capacitor C1 anode and is grounded by capacitor C1, and the anode of the zener diode VD1 connects
Ground.
4. charging battery of electric vehicle as described in claim 1 protects circuit, which is characterized in that the output end 3 and output end 4
It is connected on the anode and negative terminal of the battery in electric vehicle, the input terminal 1 and input terminal 2 are connected to electric car charger
48V charging plug.
5. charging battery of electric vehicle as described in claim 1 protects circuit, which is characterized in that 1 foot of the relay J1-1
For normally opened contact, 3 feet are normally-closed contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710833825.5A CN107719273B (en) | 2017-09-15 | 2017-09-15 | Charging battery of electric vehicle protects circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710833825.5A CN107719273B (en) | 2017-09-15 | 2017-09-15 | Charging battery of electric vehicle protects circuit |
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| Publication Number | Publication Date |
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| CN107719273A CN107719273A (en) | 2018-02-23 |
| CN107719273B true CN107719273B (en) | 2019-05-14 |
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| CN201710833825.5A Active CN107719273B (en) | 2017-09-15 | 2017-09-15 | Charging battery of electric vehicle protects circuit |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038733B (en) * | 2018-08-07 | 2020-04-28 | 六安市同心畅能电子科技有限公司 | 5VUSB data line with full-charge automatic power-off function |
| CN110112798B (en) * | 2019-04-03 | 2020-12-18 | 六安市同心畅能电子科技有限公司 | Electric vehicle battery charging protector circuit |
| CN111953036B (en) * | 2020-07-20 | 2022-04-12 | 浙江吉智新能源汽车科技有限公司 | Charging connection control system and battery replacement station |
| CN114336819B (en) * | 2021-11-19 | 2023-10-20 | 宁波中车新能源科技有限公司 | Two-stage active equalization circuit, method, module and device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9018931B2 (en) * | 2012-12-19 | 2015-04-28 | Solidstate Controls, Llc | Control system for providing circuit protection to a power supply |
| CN104518527A (en) * | 2013-09-26 | 2015-04-15 | 深圳市海洋王照明工程有限公司 | Battery charging circuit and battery charger |
| JP6626741B2 (en) * | 2016-03-01 | 2019-12-25 | 矢崎総業株式会社 | Battery system controller |
| CN205355895U (en) * | 2016-03-03 | 2016-06-29 | 东莞新能德科技有限公司 | Battery protection circuit |
| CN206226083U (en) * | 2016-12-09 | 2017-06-06 | 惠州市德合盛科技有限公司 | A kind of grading system battery charging overvoltage protection circuit |
| CN207234457U (en) * | 2017-09-15 | 2018-04-13 | 六安市同心畅能电子科技有限公司 | Charging battery of electric vehicle protects circuit |
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