CN206992956U - A kind of paralleling switch power supply - Google Patents
A kind of paralleling switch power supply Download PDFInfo
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- CN206992956U CN206992956U CN201720948543.5U CN201720948543U CN206992956U CN 206992956 U CN206992956 U CN 206992956U CN 201720948543 U CN201720948543 U CN 201720948543U CN 206992956 U CN206992956 U CN 206992956U
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- current sampling
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Abstract
Power technique fields are the utility model is related to, more particularly to a kind of paralleling switch power supply, including DC/DC parallel connections voltage reduction module, voltage x current sampling module, control and display module and auxiliary power module；DC/DC parallel connections voltage reduction module is connected with voltage x current sampling module, control and display module connect DC/DC parallel connections voltage reduction module, voltage x current sampling module and auxiliary power module respectively, and auxiliary power module connects DC/DC parallel connections voltage reduction module, control and display module and voltage x current sampling module respectively.The paralleling switch power supply precision is high, stability is good, and output voltage error is less than 0.6%；The output current ratio of two-way DC/DC voltage reduction modules is arbitrarily distributed, and error is less than 0.1%；Efficiency high is up to 93%；Complete machine structure is simple, human-computer interaction interface is friendly.
Description
Technical field
The utility model belongs to power technique fields, more particularly to a kind of paralleling switch power supply.
Background technology
Power supply is the important component of various electronic equipments, and it is just as the heart of human body, for all electric kind equipments just
Often operation provides power.With the fast development of various electronic equipments, electrical equipment, to the quality power of high efficiency, stable performance
There is great demand.And Switching Power Supply is set with small-sized, light weight and efficient the feature almost all of electronics that is widely used
It is standby, it is that current electronics and information industry develops rapidly a kind of indispensable power mode.But in such as space station, base station, calculating
Machine server etc. is needed in the power-supply system occasion of high-power, high-precision uninterrupted power supply, and single switch power supply can not
Meet the normal power supply demand of equipment.Using the technology of multiple switch power sources in parallel as the important of high-power distributed power source
Part.But the high-precision paralleling switch power supply that current ratio arbitrarily distributes can not realized.
Utility model content
The purpose of this utility model is to provide the paralleling switch power supply that a kind of current ratio arbitrarily distributes, and has efficiency more
The characteristics of high, stability has been managed.
To achieve the above object, the technical solution adopted in the utility model is：A kind of paralleling switch power supply, including DC/DC
Voltage reduction module in parallel, voltage x current sampling module, control and display module and auxiliary power module；DC/DC parallel connection voltage reduction modules
It is connected with voltage x current sampling module, control and display module connect DC/DC parallel connections voltage reduction module, voltage x current sampling mould respectively
Block and auxiliary power module, auxiliary power module connect DC/DC parallel connections voltage reduction module, control and display module and voltage electricity respectively
Flow sampling module.
In above-mentioned paralleling switch power supply, DC/DC parallel connections voltage reduction module is in parallel using two synchronous BUCK reduction voltage circuits.
In above-mentioned paralleling switch power supply, synchronous BUCK reduction voltage circuits include half-bridge driver IRS21867 and drive two
Metal-oxide-semiconductor.
In above-mentioned paralleling switch power supply, voltage x current sampling module uses ADS1256 chips.
In above-mentioned paralleling switch power supply, auxiliary power module uses decompression chip LT8631, TI of Linear companies
The power module PTN78060WAH and voltage stabilizing chip LM117-3.3 of company, obtain 12V, 5V and 3.3V electricity needed for system work
Pressure output.
The beneficial effects of the utility model：Precision is high, stability is good, and output voltage error is less than 0.6%；Two-way DC/DC drops
The output current ratio of die block is arbitrarily distributed, and error is less than 0.1%；Efficiency high is up to 93%；Complete machine structure is simple, man-machine friendship
Mutual friendly interface.
Brief description of the drawings
Fig. 1 is the utility model one embodiment circuit module block diagram.
Embodiment
Embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings.
The example of the embodiment is shown in the drawings, wherein same or similar label represents identical or class from beginning to end
As element or with same or like function element.The embodiments described below with reference to the accompanying drawings are exemplary, only
For explaining the utility model, and can not be construed to limitation of the present utility model.
Following disclosure provides many different embodiments or example is used for realizing different structure of the present utility model.For
Simplify disclosure of the present utility model, hereinafter the part and setting of specific examples are described.They are only example, and
And purpose does not lie in limitation the utility model.In addition, the utility model can in different examples repeat reference numerals and/or word
It is female.This repetition is for purposes of simplicity and clarity, between itself not indicating discussed various embodiments and/or setting
Relation.In addition, the utility model provides the example of various specific techniques and material, but those of ordinary skill in the art can
To recognize the use of the applicability of other techniques and/or other materials.In addition, fisrt feature described below is special second
Levy it " on " structure can include the first and second features and be formed as the embodiment that directly contacts, other spy can also be included
The embodiment that sign is formed between the first and second features, such first and second feature may not be direct contact.
, it is necessary to which explanation, unless otherwise prescribed and is limited, term " connected " " connection " should in description of the present utility model
It is interpreted broadly, for example, it may be mechanical connection or electrical connection or the connection of two element internals, can be direct
It is connected, can also be indirectly connected by intermediary, can be according to specific feelings for those of ordinary skill in the related art
Condition understands the concrete meaning of above-mentioned term.
The utility model realizes that a kind of paralleling switch power supply, including DC/DC parallel connections are dropped using following technical scheme
Die block, voltage x current sampling module, control and display module and auxiliary power module；DC/DC parallel connections voltage reduction module and voltage
Current sample module connects, and control and display module connect DC/DC parallel connections voltage reduction module, voltage x current sampling module and auxiliary respectively
Power module is helped, auxiliary power module connects DC/DC parallel connections voltage reduction module, control and display module and voltage x current sampling respectively
Module.
Further, DC/DC parallel connections voltage reduction module is in parallel using two synchronous BUCK reduction voltage circuits.
Further, synchronous BUCK reduction voltage circuits include half-bridge driver IRS21867 two metal-oxide-semiconductors of driving.
Further, voltage x current sampling module uses ADS1256 chips.
Further, auxiliary power module uses the power module of decompression chip LT8631, TI companies of Linear companies
PTN78060WAH and voltage stabilizing chip LM117-3.3, obtain 12V, 5V and 3.3V voltage output needed for system work.
When it is implemented, as shown in figure 1, a kind of paralleling switch power supply, including DC/DC parallel connections voltage reduction module, voltage x current
The functional module such as sampling module, control and display module and auxiliary power module；
Wherein, DC/DC parallel connections voltage reduction module, voltage x current sampling module, control and display module are sequentially connected, the control
System and display module be connected with DC/DC parallel connection voltage reduction modules, the auxiliary power module respectively voltage reduction module in parallel with DC/DC,
Voltage x current sampling module, control and display module connection.
Moreover, DC/DC parallel connections voltage reduction module is composed in parallel using two synchronous BUCK reduction voltage circuits, in four road PWM ripples
24V input voltages are reduced to 8V output voltages by lower realize of control.Synchronous BUCK reduction voltage circuits are driven by half-bridge driver IRS21867
Dynamic two metal-oxide-semiconductors are formed.
Moreover, voltage x current sampling module is sampled using ADS1256 chips to voltage signal and current signal, and will
Sampled data gives control and display module.Voltage signal after output voltage partial pressure to obtaining.Current signal is to pass through health
Output current is converted to voltage signal and the input sample chip after the amplification of INA282 chips by copper wire sampling resistor
ADS1256, give sampled data to control and display module.
Moreover, the setting regulation that control and display module are keyed in using the sampled data and keyboard of voltage x current sampling module
The dutycycle of four road PWM ripples of DC/DC parallel connection voltage reduction modules controls DC/DC parallel connection voltage reduction module current sharing ratios and stably
Output voltage, and the sampled data of voltage x current sampling module is included on LCD.
Moreover, auxiliary power module obtains 12V, 5V and 3.3V, it is the chip power supply of each module of system.Auxiliary power module
Using the power module PTN78060WAH and voltage stabilizing chip LM117-3.3 of decompression chip LT8631, TI companies of Linear companies
Accessory power supply is formed, obtains 12V, 5V and 3.3V needed for system work.
The present embodiment realizes a kind of input voltage 24V, output voltage 8V, and maximum output current is 4.5A paralleling switch
Power supply.The paralleling switch power supply realizes the arbitrarily distribution of two-way DC/DC voltage reduction module output currents ratio and keeps output voltage
It is stable.Have the advantage that：Precision is high, stability is good, and output voltage error is less than 0.6%；The output of two-way DC/DC voltage reduction modules
Current ratio arbitrarily distributes, and error is less than 0.1%；Efficiency high is up to 93%；Complete machine structure is simple, human-computer interaction interface is friendly.
The design of the present embodiment paralleling switch power supply uses synchronous BUCK in parallel topological structure.DC/DC decompression moulds in parallel
Block is system core part, and buck functionality is completed using two synchronous BUCK reduction voltage circuits in parallel；Voltage x current sampling module
Output voltage electric current is sampled, and gives sampled data to control and display module；Control and display module utilize sampling
Data and keyboard key in control system, ensure system worked well, while the display system job information on LCD；Accessory power supply
Module is each chip power supply of system.A kind of parallel connection more efficient, that stability is more preferable, current ratio arbitrarily distributes is provided to open
Powered-down source.
It should be appreciated that the part that this specification does not elaborate belongs to prior art.
Although describe specific embodiment of the present utility model, those of ordinary skill in the art above in association with accompanying drawing
It should be appreciated that these are merely illustrative of, various deformation or modification can be made to these embodiments, without departing from this practicality
New principle and essence.The scope of the utility model is only limited by the claims that follow.
Claims (5)
1. a kind of paralleling switch power supply, it is characterized in that, including DC/DC parallel connections voltage reduction module, voltage x current sampling module, control and
Display module and auxiliary power module；DC/DC parallel connections voltage reduction module is connected with voltage x current sampling module, control and display module
DC/DC parallel connections voltage reduction module, voltage x current sampling module and auxiliary power module, auxiliary power module is connected respectively to connect respectively
DC/DC parallel connections voltage reduction module, control and display module and voltage x current sampling module.
2. paralleling switch power supply as claimed in claim 1, it is characterized in that, DC/DC parallel connections voltage reduction module uses two synchronizations
BUCK reduction voltage circuits are in parallel.
3. paralleling switch power supply as claimed in claim 2, it is characterized in that, synchronous BUCK reduction voltage circuits include half-bridge driver
IRS21867 drives two metal-oxide-semiconductors.
4. paralleling switch power supply as claimed in claim 1, it is characterized in that, voltage x current sampling module uses ADS1256 chips.
5. paralleling switch power supply as claimed in claim 1, it is characterized in that, auxiliary power module uses the decompression of Linear companies
The power module PTN78060WAH and voltage stabilizing chip LM117-3.3 of chip LT8631, TI companies, obtain needed for system work
12V, 5V and 3.3V voltage output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720948543.5U CN206992956U (en) | 2017-07-31 | 2017-07-31 | A kind of paralleling switch power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720948543.5U CN206992956U (en) | 2017-07-31 | 2017-07-31 | A kind of paralleling switch power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206992956U true CN206992956U (en) | 2018-02-09 |
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ID=61418284
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720948543.5U Expired - Fee Related CN206992956U (en) | 2017-07-31 | 2017-07-31 | A kind of paralleling switch power supply |
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| Country | Link |
|---|---|
| CN (1) | CN206992956U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112994488A (en) * | 2021-02-26 | 2021-06-18 | 无锡博而远智能装备有限公司 | Electromagnetic welding power supply |
-
2017
- 2017-07-31 CN CN201720948543.5U patent/CN206992956U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112994488A (en) * | 2021-02-26 | 2021-06-18 | 无锡博而远智能装备有限公司 | Electromagnetic welding power supply |
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Legal Events
| 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: 20180209 Termination date: 20200731 |