CN204244057U - Switching dc power supply modules in parallel - Google Patents
Switching dc power supply modules in parallel Download PDFInfo
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- CN204244057U CN204244057U CN201420672717.6U CN201420672717U CN204244057U CN 204244057 U CN204244057 U CN 204244057U CN 201420672717 U CN201420672717 U CN 201420672717U CN 204244057 U CN204244057 U CN 204244057U
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Abstract
The utility model belongs to source current technical field, specifically a kind of switching dc power supply modules in parallel.The utility model comprises parallel circuits, and described output given circuit is connected with parallel circuits effect.Described parallel circuits and pwm control circuit, inverter power circuit, current sampling circuit are connected in series.Circuit of the present utility model avoids the problem that special sharing control chip needs to set up complex peripheral circuit, carries out self-output current control, finally realize the effect of current-sharing between parallel power module by power modules self current collection circuit that configures.In addition, the utility model structure is simple, and practical, the utility model is adapted at correlative technology field and applies.
Description
Technical field
The utility model belongs to source current technical field, specifically a kind of switching dc power supply modules in parallel.
Background technology
Switching dc power supply has become the main flow of DC power supply industry, now for the requirement of the type power supply be more volume as far as possible little, power density as far as possible high, single-machine capacity is as far as possible large.Under above-mentioned requirements, the parallel connection of power modules certainly will will be carried out in stand-alone type DC power supply inside, and greatest problem in parallel is current-sharing.
Utility model content
The purpose of this utility model is to solve deficiency of the prior art, provides a kind of switching dc power supply modules in parallel.
The utility model comprises parallel circuits, and described output given circuit is connected with parallel circuits effect.
Preferably, described parallel circuits is connected with pwm control circuit.
Preferably, described circuit also comprises inverter power circuit.
Preferably, described circuit also comprises current sampling circuit.
Feature of the present utility model is that circuit is simple, avoids the problem that special sharing control chip needs to set up complex peripheral circuit.It carries out self-output current control by power modules self current collection circuit that configures, and finally realizes the effect of current-sharing between parallel power module.In addition, the utility model structure is simple, and practical, the utility model is adapted at correlative technology field and applies.
Accompanying drawing explanation
Fig. 1 is the utility model schematic diagram.
Embodiment
Below with reference to accompanying drawings the utility model is described in more detail, which show preferred embodiment of the present utility model, should be appreciated that those skilled in the art can revise the utility model described here and still realize advantageous effects of the present utility model.Therefore, following description is appreciated that extensively knowing for those skilled in the art, and not as to restriction of the present utility model.
In order to clear, whole features of practical embodiments are not described.They in the following description, are not described in detail known function and structure, because can make the utility model chaotic due to unnecessary details.Will be understood that in the exploitation of any practical embodiments, a large amount of implementation detail must be made to realize the specific objective of developer, such as, according to regarding system or the restriction about business, change into another embodiment by an embodiment.In addition, will be understood that this development may be complicated and time-consuming, but be only routine work to those skilled in the art.
For making the purpose of this utility model, feature becomes apparent, and is further described embodiment of the present utility model below in conjunction with accompanying drawing.It should be noted that, accompanying drawing all adopts the form that simplifies very much and all uses non-ratio accurately, only in order to object that is convenient, aid illustration the utility model embodiment lucidly.
As shown in Figure 1, the utility model comprises parallel circuits 2, and described output given circuit 1 acts on parallel circuits 2 and being connected.
Parallel circuits 2 of the present utility model is connected with pwm control circuit 3, and described circuit also comprises inverter power circuit 4.
Circuit of the present utility model also comprises current sampling circuit 5.
Feature of the present utility model is that circuit is simple, avoids the problem that special sharing control chip needs to set up complex peripheral circuit.It carries out self-output current control by power modules self current collection circuit that configures, and finally realizes the effect of current-sharing between parallel power module.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model embodiment.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from the spirit or scope of the utility model embodiment, can realize in other embodiments.Therefore, the utility model embodiment can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
These are only the preferred embodiment of the utility model embodiment; not in order to limit the utility model embodiment; within all spirit in the utility model embodiment and principle; any amendment of doing, equivalent replacement, improvement etc., within the protection range that all should be included in the utility model embodiment.
Claims (4)
1. switching dc power supply modules in parallel, comprises parallel circuits, it is characterized in that exporting given circuit is connected with parallel circuits effect.
2. switching dc power supply modules in parallel according to claim 1, is characterized in that described parallel circuits is connected with pwm control circuit.
3. switching dc power supply modules in parallel according to claim 2, is characterized in that described circuit also comprises inverter power circuit.
4. switching dc power supply modules in parallel according to claim 3, is characterized in that described circuit also comprises current sampling circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420672717.6U CN204244057U (en) | 2014-11-12 | 2014-11-12 | Switching dc power supply modules in parallel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420672717.6U CN204244057U (en) | 2014-11-12 | 2014-11-12 | Switching dc power supply modules in parallel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204244057U true CN204244057U (en) | 2015-04-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420672717.6U Active CN204244057U (en) | 2014-11-12 | 2014-11-12 | Switching dc power supply modules in parallel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204244057U (en) |
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2014
- 2014-11-12 CN CN201420672717.6U patent/CN204244057U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |