CN106992569A - Charge-discharge control circuit - Google Patents
Charge-discharge control circuit Download PDFInfo
- Publication number
- CN106992569A CN106992569A CN201710312321.9A CN201710312321A CN106992569A CN 106992569 A CN106992569 A CN 106992569A CN 201710312321 A CN201710312321 A CN 201710312321A CN 106992569 A CN106992569 A CN 106992569A
- Authority
- CN
- China
- Prior art keywords
- control
- circuit
- control signal
- charge
- discharge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004065 semiconductor Substances 0.000 claims abstract description 29
- 238000002955 isolation Methods 0.000 claims abstract description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000003321 amplification Effects 0.000 claims 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims 3
- 238000007599 discharging Methods 0.000 abstract description 12
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 150000004706 metal oxides Chemical class 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005622 photoelectricity Effects 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
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
-
- 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
-
- 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
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electronic Switches (AREA)
Abstract
The invention discloses a charge-discharge control circuit capable of rapidly switching charge and discharge without noise during switching, which comprises: the charging and discharging control circuit comprises a charging and discharging control signal generating circuit, two charging control signal amplifying circuits, two discharging control signal amplifying circuits, a charging on-off control circuit and a discharging on-off control circuit, wherein control signal input ends of the two charging control signal amplifying circuits and the two discharging control signal amplifying circuits are respectively connected with corresponding output ends of the charging and discharging control signal generating circuit, and each of the charging and discharging on-off control circuit comprises an MOS (metal oxide semiconductor) tube group for on-off control positioned on two sides of a charging and discharging load; the control signal output ends of the two charging control signal amplifying circuits and the control signal output ends of the two discharging control signal amplifying circuits are respectively connected with the control ends of the corresponding on-off control MOS tubes through the isolation circuits. The charge and discharge control circuit can be widely applied to the charge and discharge circuit of the storage battery.
Description
Technical field
Circuit is controlled the present invention relates to one kind, and in particular to the electricity being controlled to a kind of break-make to charging and discharging circuit
Road.
Background technology
In traditional large current density electric equipment, output side switch is generally using high current contactor to charging and discharging circuit
Break-make be controlled.In actual use, due to contactor adhesive and shut-off be required to certain time (generally 1 second with
On), this is allowed for, and electric current is exported, cut off, charging, electric discharge can not carry out high speed switching.Further, since the body of high-power contactor
Product is larger, and the noise produced during adhesive is larger, has influence on the physical and mental health of operator.
The content of the invention
The technical problems to be solved by the invention are：There is provided a kind of charge and discharge can be switched fast and not have noise when switching
Charge-discharge control circuit.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of charge-discharge control circuit, including：Fill
Discharge control signal generative circuit, two-way charging control signal amplifying circuit, two-way discharge control signal amplifying circuit, Yi Jichong
Electric on-off control circuit and electric discharge on-off control circuit, the control signal input of two-way charging control signal amplifying circuit, two
The control signal input of road discharge control signal amplifying circuit is corresponding to the charge and discharge control signal generating circuit respectively
Output end is connected, and described charging on-off control circuit includes：Each break-make positioned at charge and discharge electric loading both sides controls to use
Metal-oxide-semiconductor group, described electric discharge on-off control circuit includes：Each break-make positioned at the charge and discharge electric loading both sides controls to use
Metal-oxide-semiconductor group, each break-make control metal-oxide-semiconductor group includes two the first power MOS pipes being serially connected and the second power MOS
Manage, its connection method is：The drain electrode of first power MOS pipe is used as a make break contact, the source electrode of the first power MOS pipe and second
The drain electrode of power MOS pipe is connected, and the source electrode of the second power MOS pipe is used as another make break contact, the grid of the first power MOS pipe
With the grid of the second power MOS pipe and connecing, as the control end of the break-make control metal-oxide-semiconductor group；Two-way charging control signal is put
Control signal output, the control signal output of two-way discharge control signal amplifying circuit of big circuit are electric by isolating respectively
Road is connected with corresponding break-make control with the control end of metal-oxide-semiconductor group.
As a kind of preferred scheme, in a kind of described charge-discharge control circuit, the two-way charging control signal is put
The control signal output of big circuit, the control signal output of two-way discharge control signal amplifying circuit respectively by photoelectricity every
It is connected from circuit with corresponding break-make control with the control end of metal-oxide-semiconductor group.
As a kind of preferred scheme, in a kind of described charge-discharge control circuit, the one of described photoelectric isolating circuit
Planting concrete structure includes：Optocoupler and its peripheral circuit.
It is used as a kind of preferred scheme, in a kind of described charge-discharge control circuit, the preferred model of described power MOS pipe
For IRF3205 metal-oxide-semiconductor.
The beneficial effects of the invention are as follows：As a result of MOSFET as switch, and switch mosfet frequency can reach
More than 100K, after drive signal output or closing, output loop can be rapidly switched on or off in 10us, for being cut using switch
The equipment for changing charging and discharging circuit, can break through because of the bottleneck for the conversion speed that switch switch speed is brought slowly, charging greatly improved
With the conversion speed of electric discharge；Further, since MOSFET itself conducting internal resistance very little, can as little as below 1m Ω, so as to logical
The occasion that multiple MOSFET modes in parallel are applied to different electric currents is crossed, application scenario widely, is particularly suitable for low pressure big
The occasion of electric current output；Further, since there is no any sound and mechanical shock when opening, when solving big contactor adhesive compared with
Big adhesive sound gives people the sense of discomfort brought, and mechanical shock when solving big contactor adhesive may to equipment remainder
The damage brought.
Brief description of the drawings
Fig. 1 is the theory diagram of charge-discharge control circuit of the present invention.
Fig. 2 is that being switched fast for output loop switchs major loop connection, drive circuit schematic diagram.
Embodiment
Below in conjunction with the accompanying drawings, a kind of discharge and recharge of the present invention is described in detail exemplified by using battery as charge and discharge electric loading
Control the specific embodiment of circuit.
As shown in figure 1, a kind of charge-discharge control circuit of the present invention, including：For installing as charge and discharge control
The MCU (microprocessor) of signal generating circuit master board, put for installing two-way charging control signal amplifying circuit, two-way
Electric control signal amplifying circuit and the drive signal trigger board and charging on-off control circuit of photoelectric isolating circuit and electric discharge are logical
Disconnected control circuit, the control signal input of two-way charging control signal amplifying circuit, two-way discharge control signal amplifying circuit
Corresponding output end of the control signal input respectively with the charge and discharge control signal generating circuit be connected, described charging is led to
Disconnected control circuit includes：Each break-make control metal-oxide-semiconductor positioned at the battery BATTERY both sides as charge and discharge electric loading
Group, i.e.,：By model IRF3205 metal-oxide-semiconductor MQ1 and MQ2 the break-make control metal-oxide-semiconductor group constituted and by model
Another break-make control metal-oxide-semiconductor group that IRF3205 metal-oxide-semiconductor MQ3 and MQ4 is constituted, described electric discharge on-off control circuit bag
Include：Each break-make control metal-oxide-semiconductor group positioned at the battery BATTERY both sides as charge and discharge electric loading, i.e.,：By model
For IRF3205 metal-oxide-semiconductor MQ5 and MQ6 the break-make control metal-oxide-semiconductor group constituted and the MOS by model IRF3205
Another break-make control metal-oxide-semiconductor group that pipe MQ7 and MQ8 are constituted, this all four connections of break-make control in metal-oxide-semiconductor group
Structure is identical, as shown in Fig. 2 by taking the break-make control metal-oxide-semiconductor group that MQ1 and MQ2 are constituted as an example, being used as the first power
The MQ1 of metal-oxide-semiconductor drain electrode is connected as a make break contact, MQ1 source electrode with the drain electrode of the MQ2 as the second power MOS pipe,
MQ2 source electrode is as another make break contact, and MQ1 and MQ2 grid simultaneously connect, as the control of the break-make control metal-oxide-semiconductor group
End；Two-way charging control signal amplifying circuit, two-way discharge control signal amplifying circuit are respectively by by optocoupler and its periphery electricity
Photoelectric isolating circuit and corresponding break-make control metal-oxide-semiconductor that road (belong to the conventional techniques of this area, figure not shown in) is constituted
The control end of group is connected.
During practical application, as shown in Fig. 2 G1~G4 is the anode of switching drive signal, S1~S4 is switching drive signal
Negative terminal, 10 Ω resistance provide the charging current needed for MOSFET gate capacitance charges when MOSFET is opened, make MOSFET fast
Speed is open-minded, discharge current when 5.1K Ω resistance provides MOSFET shut-offs needed for grid capacitance electric discharge, rapidly switches off MOSFET,
1 Ω resistance be used for multigroup MOSFET it is used in parallel when, prevent electric current pass through driving circuit S poles flow.
The present invention the course of work be：When charging is required, the MCU output charge switch signals in master board extremely drive
Signal trigger board, drive signal plate amplifies signal, and after light-coupled isolation, exports the He of charge switch signal 1 of 2 groups of isolation
2, wherein, two MOSFET (MQ1 and MQ2) of one group of charge switch signal output to output loop anode, another group of charging is opened
OFF signal is exported to two MOSFET (MQ3 and MQ4) of output loop negative terminal, and the MOSFET of charge circuit is turned on therewith, entirely
Charge circuit is open-minded, and charge power supply charges to battery BATTERY, in charging process, MCU control charging output loops
Output current.When needing to close down charging, MCU control charge power supplies stop output current, then, and MCU stops charge switch letter
Number output, 2 groups of charge switch signals of drive signal trigger board output stop output, charging 2 groups of output loop therewith
MOSFET (MQ1, MQ2, MQ3 and MQ4) is turned off, and whole charging output loop is disconnected with load.Shut-off is opened during electric discharge
With charging similarly, it will not be repeated here.
In summary, only presently preferred embodiments of the present invention, not for limiting the scope that the present invention is implemented, it is all according to
The equivalent changes and modifications that shape, construction, feature and spirit described in scope of the invention as claimed are made, all should be included in this
In the right of invention.
Claims (4)
1. a kind of charge-discharge control circuit, including：Charge and discharge control signal generating circuit, two-way charging control signal amplification electricity
Road, two-way discharge control signal amplifying circuit and charging on-off control circuit and electric discharge on-off control circuit, two-way charging control
The control signal input of signal amplification circuit processed, the control signal input of two-way discharge control signal amplifying circuit respectively with
The corresponding output end of the charge and discharge control signal generating circuit is connected, it is characterised in that：Described charging on-off control circuit
Include：Each break-make control metal-oxide-semiconductor group positioned at charge and discharge electric loading both sides, described electric discharge on-off control circuit includes
Have：Each break-make control metal-oxide-semiconductor group positioned at the charge and discharge electric loading both sides, each break-make control metal-oxide-semiconductor group includes
There are two the first power MOS pipes and the second power MOS pipe being serially connected, its connection method is：The leakage of first power MOS pipe
Pole is connected as a make break contact, the source electrode of the first power MOS pipe with the drain electrode of the second power MOS pipe, the second power MOS pipe
Source electrode as another make break contact, the grid of the grid of the first power MOS pipe and the second power MOS pipe simultaneously connects, is used as this
The control end of break-make control metal-oxide-semiconductor group；The control signal output of two-way charging control signal amplifying circuit, two-way electric discharge control
The control signal output of signal amplification circuit processed passes through control of the isolation circuit with corresponding break-make control metal-oxide-semiconductor group respectively
End is connected.
2. charge-discharge control circuit as claimed in claim 1, it is characterised in that：The two-way charging control signal amplifying circuit
Control signal output, the control signal output of two-way discharge control signal amplifying circuit pass through photoelectric isolating circuit respectively
It is connected with corresponding break-make control with the control end of metal-oxide-semiconductor group.
3. charge-discharge control circuit as claimed in claim 2, it is characterised in that：One kind of described photoelectric isolating circuit is specific
Structure includes：Optocoupler and its peripheral circuit.
4. the charge-discharge control circuit as described in claim 1,2 or 3, it is characterised in that：The preferred model of described power MOS pipe
For IRF3205 metal-oxide-semiconductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710312321.9A CN106992569A (en) | 2017-05-05 | 2017-05-05 | Charge-discharge control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710312321.9A CN106992569A (en) | 2017-05-05 | 2017-05-05 | Charge-discharge control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106992569A true CN106992569A (en) | 2017-07-28 |
Family
ID=59418191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710312321.9A Pending CN106992569A (en) | 2017-05-05 | 2017-05-05 | Charge-discharge control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106992569A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110729739A (en) * | 2018-07-17 | 2020-01-24 | 董振隆 | Virtual reactive compensator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1285657A (en) * | 1999-08-20 | 2001-02-28 | Em微电子马林有限公司 | Bidirectional switch control system adoption of two transistors |
| CN202076379U (en) * | 2010-07-30 | 2011-12-14 | 比亚迪股份有限公司 | Heating circuit of battery |
| CN105206449A (en) * | 2009-11-16 | 2015-12-30 | Abb技术有限公司 | Device and method for disconnecting current of power transmission line or power distribution line and current limiting arrangement |
| CN206697983U (en) * | 2017-05-05 | 2017-12-01 | 江苏金帆电源科技有限公司 | Charge-discharge control circuit |
-
2017
- 2017-05-05 CN CN201710312321.9A patent/CN106992569A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1285657A (en) * | 1999-08-20 | 2001-02-28 | Em微电子马林有限公司 | Bidirectional switch control system adoption of two transistors |
| CN105206449A (en) * | 2009-11-16 | 2015-12-30 | Abb技术有限公司 | Device and method for disconnecting current of power transmission line or power distribution line and current limiting arrangement |
| CN202076379U (en) * | 2010-07-30 | 2011-12-14 | 比亚迪股份有限公司 | Heating circuit of battery |
| CN206697983U (en) * | 2017-05-05 | 2017-12-01 | 江苏金帆电源科技有限公司 | Charge-discharge control circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110729739A (en) * | 2018-07-17 | 2020-01-24 | 董振隆 | Virtual reactive compensator |
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