CN109980738A - A kind of intelligence DC-DC charger - Google Patents
A kind of intelligence DC-DC charger Download PDFInfo
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- CN109980738A CN109980738A CN201910276688.9A CN201910276688A CN109980738A CN 109980738 A CN109980738 A CN 109980738A CN 201910276688 A CN201910276688 A CN 201910276688A CN 109980738 A CN109980738 A CN 109980738A
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- 229910052744 lithium Inorganic materials 0.000 claims abstract description 27
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 24
- 230000004224 protection Effects 0.000 claims abstract description 18
- 238000004891 communication Methods 0.000 claims abstract description 7
- 101100190527 Arabidopsis thaliana PIN5 gene Proteins 0.000 claims description 10
- 108010059419 NIMA-Interacting Peptidylprolyl Isomerase Proteins 0.000 claims description 7
- 101150011456 PIN8 gene Proteins 0.000 claims description 7
- 102100026114 Peptidyl-prolyl cis-trans isomerase NIMA-interacting 1 Human genes 0.000 claims description 7
- 101150087393 PIN3 gene Proteins 0.000 claims description 6
- 102000007315 Telomeric Repeat Binding Protein 1 Human genes 0.000 claims description 4
- 108010033711 Telomeric Repeat Binding Protein 1 Proteins 0.000 claims description 4
- 101100190528 Arabidopsis thaliana PIN6 gene Proteins 0.000 claims description 3
- 101100190529 Arabidopsis thaliana PIN7 gene Proteins 0.000 claims description 3
- 101100190530 Arabidopsis thaliana PIN8 gene Proteins 0.000 claims description 3
- 102220555063 Holliday junction recognition protein_R25A_mutation Human genes 0.000 claims description 3
- 108010037490 Peptidyl-Prolyl Cis-Trans Isomerase NIMA-Interacting 4 Proteins 0.000 claims description 3
- 102100031653 Peptidyl-prolyl cis-trans isomerase NIMA-interacting 4 Human genes 0.000 claims description 3
- 230000032683 aging Effects 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 101000746134 Homo sapiens DNA endonuclease RBBP8 Proteins 0.000 description 1
- 101000969031 Homo sapiens Nuclear protein 1 Proteins 0.000 description 1
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 102100021133 Nuclear protein 1 Human genes 0.000 description 1
- 101100190532 Oryza sativa subsp. japonica PIN9 gene Proteins 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00036—Charger exchanging data with battery
-
- 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
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00038—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange using passive battery identification means, e.g. resistors or capacitors
- H02J7/00041—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange using passive battery identification means, e.g. resistors or capacitors in response to measured battery parameters, e.g. voltage, current or temperature profile
-
- 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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
-
- H02J7/0026—
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention discloses a kind of intelligence DC-DC charger, includes DC-DC module and single chip machine controlling circuit；The DC-DC module is exported the DC power supply 6V-18V 12-30V for changing into constant pressure and flow using cheap TL494 chip；The single chip machine controlling circuit connects between DC-DC module and lithium battery protection board, realizes and lithium battery protection board charge protocol is docked, while controlling charging voltage and charging current.DC-DC boosting constant pressure and flow output is realized by using cheap TL494 chip, charging voltage and charging current can be adjusted using mcu programming control simultaneously, with being shaken hands between battery pack using communications protocol, guarantee charger in this way will not be misapplied charger.It can easily realize that 6V-18V direct current inputs, the constant pressure and flow output of 12V-30V.Charging current can be adjusted from the electrodeless intelligence of 100mA-2400mA simultaneously.When this product is able to solve outdoor electric tool operation, battery pack is out of power, and in the case where lacking alternating current, is charged using other power supplys that can use, to not dally over one's work.
Description
Technical field
The present invention relates to charger field technologies, refer in particular to a kind of intelligence DC-DC charger.
Background technique
It by lithium metal or lithium alloy is negative electrode material, using the battery of non-aqueous electrolytic solution that " lithium battery ", which is a kind of,.
Lithium metal battery is proposed and is studied by Gilbert N.Lewis earliest within 1912.When the 1970s,
M.S.Whittingham is proposed and the lithium ion battery that begins one's study.Since the chemical characteristic of lithium metal is very active, so that lithium is golden
Processing, preservation, the use of category, it is very high to environmental requirement.With the development of science and technology, present lithium battery has become master
Stream.
As the development of lithium battery technology, the especially development of lithium dynamical battery technology, lithium battery are widely used in electronic
Automobile, electric bicycle, electric tool etc..Lithium battery electric power needs to charge using charger after having consumed, currently, traditional
The charger of AC-DC (alternating current turns direct current) is very universal, but the charging of DC-DC (DC voltage turns DC voltage)
Device technology is also immature, and more convenience cannot be provided for user.Therefore, it is necessary to study a kind of schemes to solve above-mentioned ask
Topic.
Summary of the invention
In view of this, in view of the deficiencies of the prior art, the present invention aims to provide a kind of intelligence DC-DC to fill
Electric appliance, when being able to solve outdoor electric tool operation, battery pack is out of power, and in the case where lacking alternating current, utilization is other
It can use power supply to charge, to not dally over one's work.
To achieve the above object, the present invention is using following technical solution:
A kind of intelligence DC-DC charger, includes DC-DC module and single chip machine controlling circuit；The DC-DC module uses
Cheap TL494 chip exports the DC power supply 6V-18V 12-30V for changing into constant pressure and flow；The single chip machine controlling circuit connects
It connects between DC-DC module and lithium battery protection board, realizes and lithium battery protection board charge protocol is docked, while controlling charging
Voltage and charging current.
Preferably, the VIN, GND terminal of the DC-DC module are 12V DC voltage leading-in terminals, are made into voltage DC6-
The both ends that 18V, VIN, GND terminal are separately connected diode D1 prevent input reverse-connection.
Preferably, general EMC and filter circuit are made of in the DC-DC module LF1, EC1 and EC1A.
Preferably, the periphery rest part IC1TL494 circuit, L1, D3, D3A form boost switching in the DC-DC module
Electric power loop.
Preferably, R17, Q6, R16, R18, C16 and the pairs of battery pack voltage of single-chip microcontroller PIN11 group in the DC-DC module
The circuit of detecting.
Preferably, Q3, R25, R25A, Q4, R26, R19 and 12 foot of single-chip microcontroller form charge switch in the DC-DC module
Circuit.
Preferably, in the DC-DC module IC1TL494 PIN1, PIN2, PIN15, PIN16, two-way operation electric discharge is outer
Add the resistance capacitance on periphery to be formed, realize current constant control all the way, realize Isobarically Control all the way, cooperates R38, RJ02 and single-chip microcontroller
PIN10 realizes current constant control.
Preferably, it is that input 12V changes into 5V that IC2 and periphery circuit, which are LDO linear voltage decreasing, in the DC-DC module, to single
The power supply of piece machine.
Preferably, U1 is single-chip microcontroller in the single chip machine controlling circuit, using 8 conjunction Thailand single-chip microcontroller HT66F0182.
Preferably, single-chip microcontroller PIN16 is VDD in the single chip machine controlling circuit, and PIN1 VSS, PIN4 is as charger
Volume production aging is used, and PIN3 and PIN5 are burning program mouth, this PIN3 detects agreement simultaneously, also as A/D detecting communication foot COM electricity
It pressing to judge state, PIN6 and PIN7 are used to control LED light, and PIN8 controls charging voltage, and PIN10 controls charging current,
PIN11 detects battery voltage, control foot of the PIN12 as main switch PMOS tube Q3, PIN13 and PIN15 conduct and lithium battery
The communications protocol of protection board is docked, and PIN14 detects the charging current of entire charger.
The present invention has obvious advantages and beneficial effects compared with the existing technology, specifically, by above-mentioned technical proposal
Known to:
DC-DC boosting constant pressure and flow output is realized by using cheap TL494 chip, while utilizing mcu programming
Control can adjust charging voltage and charging current, and charger is guaranteed in this way with being shaken hands between battery pack using communications protocol
Charger will not be misapplied.It can easily realize that 6V-18V direct current inputs, the constant pressure and flow output of 12V-30V.It realizes and is gone here and there to 4-7
Lithium battery intelligent charging.Charging current can be adjusted from the electrodeless intelligence of 100mA-2400mA simultaneously.This product fills up current lithium
Battery, which charges, depends merely on the power supply-charging technology of AC-DC a kind of, and when being able to solve outdoor electric tool operation, battery pack is out of power,
In the case where lacking alternating current again, charged using other power supplys that can use, to not dally over one's work.
In order to explain the structural features and functions of the invention more clearly, come with reference to the accompanying drawing with specific embodiment to this hair
It is bright to be described in detail:
Detailed description of the invention
Fig. 1 is the block diagram of the preferred embodiments of the invention；
Fig. 2 is the preferred embodiments of the invention lithium battery protection board-charging process protection flow chart；
Fig. 3 is the line principle schematic diagram of the preferred embodiments of the invention；
Fig. 4 is the partial enlargement diagram of Fig. 3；
Fig. 5 is another partial enlargement diagram of Fig. 3.
Description of drawing identification:
10, DC-DC module 20, single chip machine controlling circuit
Specific embodiment
It please refers to shown in Fig. 1 to Fig. 5, it to include DC-DC that show the specific structures of the preferred embodiments of the invention
Module 10 and single chip machine controlling circuit 20.
DC power supply 6V-18V is changed into the 12- of constant pressure and flow using cheap TL494 chip by the DC-DC module 10
30V output；In the present embodiment, DC12V power supply electricity is changed into 22V/2.4A constant pressure and flow, direct current by 10 function of DC-DC module
Pressure can be adjusted according to load, and 13V-30V output may be implemented in the present embodiment, can be charged and be accomplished from 4 sections -7 to lithium battery
Section series connection.
VIN, the GND terminal of the DC-DC module 10 are 12V DC voltage leading-in terminals, are made into voltage DC6-18V,
The both ends that VIN, GND terminal are separately connected diode D1 prevent input reverse-connection；In the DC-DC module 10 by LF1, EC1 and
EC1A forms general EMC and filter circuit；The periphery rest part IC1TL494 circuit in the DC-DC module 10, L1, D3,
D3A forms Switching Boost Converter Used circuit, belongs to typical Switching Power Supply circuit, safety meet the vehicle-mounted certification of EMARK also comply with GS,
The safety standard of the major countries such as CCC, UL, PSE；R17, Q6, R16, R18, C16 and single-chip microcontroller PIN11 in the DC-DC module
The circuit of the pairs of battery pack detecting voltage of group, when the insertion of VIN DC voltage, Q6 is opened, and battery is surrounded by insertion, single-chip microcontroller at this time
PIN11 will detect cell voltage, and single-chip microcontroller realizes constant-current charge, trickle charge, it is ensured that cell safety according to cell voltage
Efficiently charging, and can rush it is full, when there is no input DC power, this road Q6mos pipe close realize zero current loss；
Q3, R25, R25A, Q4, R26, R19 and 12 foot of single-chip microcontroller form charge switch circuit in the DC-DC module, abnormal when occurring
Situation, for example overshoot, excess temperature, battery single-unit imbalance etc. can close the pass MOS, while Q3 is integrated two double PMOS, route
It connects, is can be realized even if there is PMOS damage all the way above, in addition PMOS also can be realized protection all the way, realize double protections；
PIN1, PIN2, PIN15, PIN16 of IC1TL494 in the DC-DC module, two-way operation are discharged the resistance capacitance on additional periphery
It is formed, realizes current constant control all the way, realize Isobarically Control all the way, R38, RJ02 and single-chip microcontroller PIN10 is cooperated to realize current constant control；
When charger and battery packet protocol successful matching, PIN10 exports high level and realizes maximum current charging, as single-chip microcontroller PIN11
When detecting battery pack voltage and being full of fastly, PIN10 exports PWM duty cycle adjustable current and reduces, and realizes trickle charge, works as appearance,
Cell voltage is too low, and PIN10 exports high-impedance state, and electric current is adjusted to minimum value 100mA, pre- punching 10 minutes, cell voltage not on
It rises, turns off the switch metal-oxide-semiconductor；It is that input 12V changes into 5V that IC2 and periphery circuit, which are LDO linear voltage decreasing, in the DC-DC module 10,
It powers to single-chip microcontroller.
The single chip machine controlling circuit 20 connects between DC-DC module 10 and lithium battery protection board, realization and li-ion cell protection
Plate charge protocol is docked, while controlling charging voltage and charging current.
U1 is single-chip microcontroller in the single chip machine controlling circuit 20, using 8 conjunction Thailand single-chip microcontroller HT66F0182, can also be adopted
With other single-chip microcontroller control models.Single-chip microcontroller PIN16 is VDD, PIN1 VSS, PIN4 work in the single chip machine controlling circuit 20
For charger volume production aging use, PIN3 and PIN5 are burning program mouth, this PIN3 detects agreement simultaneously, also logical as A/D detecting
Foot COM voltage is interrogated to judge state, PIN6 and PIN7 are used to control LED light, and two lamps realize that different conditions include normal
It is bright, flashing, single flashing etc. state, only different conditions of charger respectively, for example charge and singly send out a warning, full of singly giving a green light
Etc., PIN8 controls charging voltage, and PIN10 controls charging current, and PIN11 detects battery voltage, and PIN12 is as main switch
The control foot of PMOS tube Q3, PIN13 and PIN15 are docked as the communications protocol with lithium battery protection board, and PIN14 detecting is entirely filled
The charging current of electric appliance, when charging current is less than 100mA hereinafter, lithium battery protection board charges also when send out charge protocol at this time
Device closes output by force, and LED light shows full state, abnormal conditions is avoided to charge always.
COM1 and COM2 is in the single chip machine controlling circuit 20 and the docking of battery pack signal, reception battery pack are issued each
Kind instruction, while returning charger and also returning to battery pack pairing situation.It is controlled especially by different agreement, charge, be full of,
Excess temperature, pre- punching, abnormal etc. state.
The working principle that the present embodiment is described in detail is as follows:
Firstly, charger DC power supply powers on, battery pack insertion or charger are first inserted into battery pack and lead to DC electricity, charger
Start to initialize, single-chip microcontroller is started to work, and is flashed into standby mode such as green light.Then, single-chip microcontroller detects battery pack voltage,
It starts simultaneously at and receives the charge protocol that battery pack is sent, while detecting the voltage of agreement and battery pack insertion.Then, it indicates
The lamp main switch metal-oxide-semiconductor that starts to send out a warning out starts to charge to battery pack.Then, charging current and charging are controlled by software algorithm
Voltage, until being full of.Then, when system is always on full of such as green light, to show state, output voltage, pass metal-oxide-semiconductor are dragged down
Complete charging.
Constant current is achieved in that: the PIN15 of IC1 divides to obtain a fixed reference voltage value by 5V, R13 and R14
It is the voltage-contrast of 0.1 Ω sample resistance with PIN16 sampling R21, PIN9, PIN10 of difference control IC1 is exported by amplifier
Reach constant current to control the main switch of DC-DC boost module, when realizing large current charge, the high electricity of single-chip microcontroller PIN10 output
It is flat, by two resistor coupled in parallel of R38 and R13, change the reference voltage of the PIN15 of IC1TL494, to change constant current point.R7,Q5,
R27, R28, single-chip microcontroller PIN8, composition pressure regulation adjust circuit, and when charger and battery protecting plate successful matching, single-chip microcontroller PIN8 is defeated
High level out provides maximum charging voltage.When battery is full of, abnormality, over-temperature condition, standby mode, PIN8 output
Low level, charger output voltage drag down, and will not generate harm to battery main switch damages at this time.
Output voltage adjustment is achieved in that: 5V, R11, R12 form pressure divider circuit and provide benchmark to the PIN2 of TL494,
R5, R6, R7 detect output voltage, access PIN1 by partial pressure, Isobarically Control principle equally passes through as current constant control principle
Q5, R27, R28, single-chip microcontroller PIN8 control reach adjustment output voltage.
Design focal point of the invention is: realizing that DC-DC boosting constant pressure and flow is defeated by using cheap TL494 chip
Out, while using mcu programming control charging voltage and charging current can be adjusted, charger is logical with using between battery pack
Agreement is interrogated to shake hands, guarantee charger in this way will not be misapplied.It can easily realize that 6V-18V direct current inputs, the perseverance of 12V-30V
Press constant current output.Realize the lithium battery intelligent charging gone here and there to 4-7.Charging current can be from the electrodeless intelligence of 100mA-2400mA simultaneously
It adjusts.This product fills up the power supply-charging technology that a kind of AC-DC is depended merely in current lithium battery charging, is able to solve the electronic work of outdoor
When having operation, battery pack is out of power, and in the case where lacking alternating current, is charged using other power supplys that can use, thus not
It dallies over one's work.
The technical principle of the invention is described above in combination with a specific embodiment.These descriptions are intended merely to explain of the invention
Principle, and shall not be construed in any way as a limitation of the scope of protection of the invention.Based on the explanation herein, the technology of this field
Personnel can associate with other specific embodiments of the invention without creative labor, these modes are fallen within
Within protection scope of the present invention.
Claims (10)
1. a kind of intelligence DC-DC charger, it is characterised in that: include DC-DC module and single chip machine controlling circuit；The DC-
DC module is exported the DC power supply 6V-18V 12-30V for changing into constant pressure and flow using cheap TL494 chip；The single-chip microcontroller
Control circuit connects between DC-DC module and lithium battery protection board, realizes and lithium battery protection board charge protocol is docked, together
When control charging voltage and charging current.
2. a kind of intelligence DC-DC charger as described in claim 1, it is characterised in that: VIN, GND of the DC-DC module
Terminal is 12V DC voltage leading-in terminal, is made into voltage DC6-18V, and the both ends that VIN, GND terminal are separately connected diode D1 are anti-
Only input reverse-connection.
3. a kind of intelligence DC-DC charger as claimed in claim 2, it is characterised in that: in the DC-DC module by LF1,
EC1 and EC1A forms general EMC and filter circuit.
4. a kind of intelligence DC-DC charger as claimed in claim 3, it is characterised in that: rest part in the DC-DC module
The periphery IC1 TL494 circuit, L1, D3, D3A form Switching Boost Converter Used circuit.
5. a kind of intelligence DC-DC charger as described in claim 1, it is characterised in that: R17, Q6 in the DC-DC module,
The circuit of R16, R18, C16 and the pairs of battery pack detecting voltage of single-chip microcontroller PIN11 group.
6. a kind of intelligence DC-DC charger as described in claim 1, it is characterised in that: Q3, R25 in the DC-DC module,
R25A, Q4, R26, R19 and 12 foot of single-chip microcontroller form charge switch circuit.
7. a kind of intelligence DC-DC charger as described in claim 1, it is characterised in that: IC1 in the DC-DC module
PIN1, PIN2, PIN15, PIN16 of TL494, the discharge resistance capacitance on additional periphery of two-way operation are formed, and realize constant current all the way
Isobarically Control is realized in control all the way, and R38, RJ02 and single-chip microcontroller PIN10 is cooperated to realize current constant control.
8. a kind of intelligence DC-DC charger as described in claim 1, it is characterised in that: IC2 and week in the DC-DC module
Side circuit is that LDO linear voltage decreasing is that input 12V changes into 5V, is powered to single-chip microcontroller.
9. a kind of intelligence DC-DC charger as described in claim 1, it is characterised in that: U1 in the single chip machine controlling circuit
It is single-chip microcontroller, using 8 conjunction Thailand single-chip microcontroller HT66F0182.
10. a kind of intelligence DC-DC charger as described in claim 1, it is characterised in that: single in the single chip machine controlling circuit
Piece machine PIN16 is VDD, and PIN1 VSS, PIN4 are used as charger volume production aging, and PIN3 and PIN5 are burning program mouth, this
PIN3 detects agreement simultaneously, and state is also judged as A/D detecting communication foot COM voltage, and PIN6 and PIN7 are used to control LED and refer to
Show that lamp, PIN8 control charging voltage, PIN10 controls charging current, and PIN11 detects battery voltage, and PIN12 is as main switch
The control foot of PMOS tube Q3, PIN13 and PIN15 are docked as the communications protocol with lithium battery protection board, and PIN14 detecting is entirely filled
The charging current of electric appliance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910276688.9A CN109980738A (en) | 2019-04-08 | 2019-04-08 | A kind of intelligence DC-DC charger |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910276688.9A CN109980738A (en) | 2019-04-08 | 2019-04-08 | A kind of intelligence DC-DC charger |
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| CN109980738A true CN109980738A (en) | 2019-07-05 |
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ID=67083374
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| CN201910276688.9A Pending CN109980738A (en) | 2019-04-08 | 2019-04-08 | A kind of intelligence DC-DC charger |
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| CN110365076A (en) * | 2019-07-10 | 2019-10-22 | 东莞启益电器机械有限公司 | Can intelligent measurement charger maximum output charging current charging circuit |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110365076A (en) * | 2019-07-10 | 2019-10-22 | 东莞启益电器机械有限公司 | Can intelligent measurement charger maximum output charging current charging circuit |
| CN110365076B (en) * | 2019-07-10 | 2024-04-16 | 东莞启益电器机械有限公司 | Charging circuit capable of intelligently detecting maximum output charging current of charger |
| CN113497471A (en) * | 2020-03-18 | 2021-10-12 | 苏州宝时得电动工具有限公司 | Direct current power supply |
| CN113497471B (en) * | 2020-03-18 | 2023-12-08 | 苏州宝时得电动工具有限公司 | DC power supply |
| CN112821518A (en) * | 2021-02-24 | 2021-05-18 | 陈锐涛 | Wide-voltage power supply intelligent charging circuit and battery charger thereof |
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Application publication date: 20190705 |