CN208597023U - Bidirectional DC-DC converter and bidirectional DC-DC converter system - Google Patents
Bidirectional DC-DC converter and bidirectional DC-DC converter system Download PDFInfo
- Publication number
- CN208597023U CN208597023U CN201920156934.2U CN201920156934U CN208597023U CN 208597023 U CN208597023 U CN 208597023U CN 201920156934 U CN201920156934 U CN 201920156934U CN 208597023 U CN208597023 U CN 208597023U
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- Prior art keywords
- bidirectional
- chopper circuit
- converter
- module
- power supply
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Dc-Dc Converters (AREA)
Abstract
The utility model relates to a kind of bidirectional DC-DC converter and bidirectional DC-DC converter system, this bidirectional DC-DC converter includes: DC decompression chopper circuit, DC boosting chopper circuit and the battery module that processor module and the processor module are electrical connected；Wherein the processor module is suitable for controlling the DC decompression chopper circuit and will be supplied to load after voltage step-down that power supply line provides and/or charge to the battery module；And the processor module is further adapted for controlling the DC boosting chopper circuit for power output in the battery module to load；The bidirectional DC-DC converter includes: the supply voltage detection module being arranged in power supply line；When the supply voltage detection module detects that supply voltage is in preset value, the processor module is suitable for controlling the DC decompression chopper circuit and is powered to load；The utility model, which realizes, automatically switches the function that working condition carries out stable power-supplying, improves the efficiency of present apparatus charge and discharge.
Description
Technical field
The utility model relates to a kind of field of power conversion more particularly to a kind of bidirectional DC-DC converters and bi-directional DC-DC
Transformation system.
Background technique
With the development of society and the progress of science and technology, the sustainable development of the energy and environment is the important class of the world today
Topic.Bidirectional DC-DC converter is widely applied in fields such as energy automobile, elevator operation, solar power generations.Electric car
Rapidly developed as green energy resource automobile, lithium-ion-power cell because energy density is high, more than small in size, cycle-index due to
As preferred electric powered motor source.Traditional bidirectional DC-DC converter uses H-type full-bridge type, and switching device is more, controls
Complexity, it is at high cost.
Therefore, need to develop a kind of bidirectional DC-DC converter and bidirectional DC-DC converter system, to solve the above problems.
Utility model content
The purpose of the utility model is to provide a kind of bidirectional DC-DC converter and bidirectional DC-DC converter systems, to solve such as
The problem of what converting electrical energy is supplied to load.
In order to solve the above-mentioned technical problem, the utility model provides a kind of bidirectional DC-DC converter comprising: processing
Device module, DC decompression chopper circuit, DC boosting chopper circuit and the battery module being electrical connected with the processor module；
Wherein the processor module is suitable for controlling the DC decompression chopper circuit and will provide after voltage step-down that power supply line provides
It charges to load and/or to the battery module；And the processor module is further adapted for controlling the DC boosting and cuts
Wave circuit extremely loads power output in the battery module；The bidirectional DC-DC converter includes: to be arranged in power supply line
Supply voltage detection module；When the supply voltage detection module detects that supply voltage is in preset value, the processing
Device module is suitable for controlling the DC decompression chopper circuit and is powered to load.
Further, the bidirectional DC-DC converter includes: battery voltage sensing module；If the battery voltage detection mould
When block detects battery module voltages value lower than setting amplitude limit value, the processor module controls the DC decompression chopper circuit
It charges to the battery module.
Further, when the supply voltage detection module detects supply voltage beyond preset value, the processor die
Block controls DC decompression chopper circuit and disconnects, and starts the battery module to load by the DC boosting chopper circuit
It is powered.
Further, the bidirectional DC-DC converter includes: to be separately positioned on the DC decompression chopper circuit, described straight
Flow the first field-effect tube, the second field-effect tube in boost chopper；First field-effect tube, the second field-effect tube with
The processor module is electrical connected；The processor module is suitable for by controlling direct current described in the first field-effect tube start and stop
Buck circuit works；And the processor module is suitable for by controlling described in the second field-effect tube start and stop directly
Stream boost chopper works.
On the other hand, the utility model provides a kind of bidirectional DC-DC converter system comprising: such as above-mentioned bi-directional DC-DC
Converter, power supply line；The bidirectional DC-DC converter is adapted to the power supply line, and the power supply line is suitable for power supply.
Further, the power supply line includes: D.C. regulated power supply.
The utility model has the beneficial effects that the utility model after the voltage step-down that provides power supply line by being supplied to
It loads and charges to battery module, and load is powered by battery module in power supply line's power failure or failure,
It realizes and automatically switches the function that working condition carries out stable power-supplying, improve the efficiency of present apparatus charge and discharge.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the functional block diagram of the utility model bidirectional DC-DC converter.
Specific embodiment
The utility model is described in further detail presently in connection with attached drawing.These attached drawings are simplified schematic diagram,
Only illustrate the basic structure of the utility model in a schematic way, therefore it only shows composition related with the utility model.
Embodiment 1
Fig. 1 is the functional block diagram of the utility model bidirectional DC-DC converter.
In the present embodiment, as shown in Figure 1, present embodiments providing a kind of bidirectional DC-DC converter comprising: processing
Device module, DC decompression chopper circuit, DC boosting chopper circuit and the battery module being electrical connected with the processor module；
Wherein the processor module is suitable for controlling the DC decompression chopper circuit and will provide after voltage step-down that power supply line provides
It charges to load and/or to the battery module；And the processor module is further adapted for controlling the DC boosting and cuts
Wave circuit extremely loads power output in the battery module；The bidirectional DC-DC converter includes: to be arranged in power supply line
Supply voltage detection module；When the supply voltage detection module detects that supply voltage is in preset value, the processing
Device module is suitable for controlling the DC decompression chopper circuit and is powered to load.
In the present embodiment, the present embodiment is by being supplied to load and to battery after the voltage step-down that provides power supply line
Module charges, and is powered by battery module to load in power supply line's power failure or failure, realizes and cuts automatically
The state that changes jobs carries out the function of stable power-supplying, improves the efficiency of present apparatus charge and discharge.
In the present embodiment, the processor module can use but be not limited to STC89C51 processor of single chip computer.
In order to charge in battery module not enough power supply to battery module, the bidirectional DC-DC converter includes: electricity
Cell voltage detection module；If the battery voltage sensing module detects battery module voltages value lower than setting amplitude limit value, institute
The processor module control DC decompression chopper circuit is stated to charge to the battery module.
In order to carry out power supply free of discontinuities to load when power supply line has a power failure or breaks down, when the supply voltage detects
When module detects supply voltage beyond preset value, the processor module control DC decompression chopper circuit is disconnected, and passes through
The DC boosting chopper circuit starts the battery module to be powered to load.
In the present embodiment, battery voltage sensing module includes: to acquire the current sensor of battery module voltages value (at this
It can be used in embodiment but be not limited to WCS2702 type current sensor)；Supply voltage detection module includes: acquisition power supply
The current sensor (can use in the present embodiment but be not limited to WCS2702 type current sensor) of voltage.
In the present embodiment, battery module includes: battery pack.
In order to complete the switching of power supply line's powered operation mode or battery-powered operation mode, the bi-directional DC-DC becomes
Parallel operation include: be separately positioned on the DC decompression chopper circuit, the first field-effect tube in the DC boosting chopper circuit,
Second field-effect tube；First field-effect tube, the second field-effect tube are electrical connected with the processor module；The processing
Device module is suitable for working by controlling DC decompression chopper circuit described in the first field-effect tube start and stop；And the place
Reason device module is suitable for working by controlling DC boosting chopper circuit described in the second field-effect tube start and stop.
Embodiment 2
On the basis of embodiment 1, the present embodiment provides a kind of bidirectional DC-DC converter systems comprising: such as above-mentioned pair
To DC-DC converter, power supply line；The bidirectional DC-DC converter is adapted to the power supply line, and the power supply line is suitable
In power supply.
Specifically, the power supply line includes: D.C. regulated power supply.
In conclusion the utility model is by being supplied to load and to battery mould after the voltage step-down that provides power supply line
Block charges, and is powered by battery module to load in power supply line's power failure or failure, realizes automatic switchover
Working condition carries out the function of stable power-supplying, improves the efficiency of present apparatus charge and discharge；The present apparatus realizes bidirectional DC power supply
Digital Control purpose.
It is enlightenment, through the above description, related work people with the above-mentioned desirable embodiment according to the utility model
Member can carry out various changes and amendments in the range of without departing from this item utility model technical idea completely.This item is real
It is not limited to the contents of the specification with novel technical scope, it is necessary to its technology is determined according to scope of the claims
Property range.
Claims (6)
1. a kind of bidirectional DC-DC converter characterized by comprising
Processor module, the DC decompression chopper circuit being electrical connected with the processor module, DC boosting chopper circuit and
Battery module；Wherein
The processor module, which is suitable for controlling the DC decompression chopper circuit, to be provided after voltage step-down that power supply line provides
It charges to load and/or to the battery module；And
The processor module is further adapted for controlling the DC boosting chopper circuit for power output in the battery module to negative
It carries；
The bidirectional DC-DC converter includes: the supply voltage detection module being arranged in power supply line；
When the supply voltage detection module detects that supply voltage is in preset value, the processor module is suitable for control institute
DC decompression chopper circuit is stated to be powered load.
2. bidirectional DC-DC converter as described in claim 1, which is characterized in that
The bidirectional DC-DC converter includes: battery voltage sensing module；
If the battery voltage sensing module detects battery module voltages value lower than setting amplitude limit value, the processor module
The DC decompression chopper circuit is controlled to charge to the battery module.
3. bidirectional DC-DC converter as claimed in claim 2, which is characterized in that
When the supply voltage detection module detects supply voltage beyond preset value, the processor module control direct current drop
It presses chopper circuit to disconnect, and the battery module is started to be powered to load by the DC boosting chopper circuit.
4. bidirectional DC-DC converter as claimed in claim 3, which is characterized in that
The bidirectional DC-DC converter includes: to be separately positioned on the DC decompression chopper circuit, DC boosting copped wave electricity
The first field-effect tube, the second field-effect tube in road；
First field-effect tube, the second field-effect tube are electrical connected with the processor module；
The processor module is suitable for carrying out work by controlling DC decompression chopper circuit described in the first field-effect tube start and stop
Make；And
The processor module is suitable for carrying out work by controlling DC boosting chopper circuit described in the second field-effect tube start and stop
Make.
5. a kind of bidirectional DC-DC converter system characterized by comprising
Bidirectional DC-DC converter according to any one of claims 1-4, power supply line；
The bidirectional DC-DC converter is adapted to the power supply line, and the power supply line is suitable for power supply.
6. bidirectional DC-DC converter system as claimed in claim 5, which is characterized in that
The power supply line includes: D.C. regulated power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920156934.2U CN208597023U (en) | 2019-01-30 | 2019-01-30 | Bidirectional DC-DC converter and bidirectional DC-DC converter system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920156934.2U CN208597023U (en) | 2019-01-30 | 2019-01-30 | Bidirectional DC-DC converter and bidirectional DC-DC converter system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208597023U true CN208597023U (en) | 2019-03-12 |
Family
ID=65605703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920156934.2U Expired - Fee Related CN208597023U (en) | 2019-01-30 | 2019-01-30 | Bidirectional DC-DC converter and bidirectional DC-DC converter system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208597023U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114400697A (en) * | 2021-12-01 | 2022-04-26 | 深圳市海和科技股份有限公司 | Two-way mobile power generation circuit and two-way mobile power generation terminal equipment |
-
2019
- 2019-01-30 CN CN201920156934.2U patent/CN208597023U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114400697A (en) * | 2021-12-01 | 2022-04-26 | 深圳市海和科技股份有限公司 | Two-way mobile power generation circuit and two-way mobile power generation terminal equipment |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190312 Termination date: 20200130 |