CN101572497B - Method for building industrial AC/DC wide range input power module - Google Patents
Method for building industrial AC/DC wide range input power module Download PDFInfo
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- CN101572497B CN101572497B CN2009100517163A CN200910051716A CN101572497B CN 101572497 B CN101572497 B CN 101572497B CN 2009100517163 A CN2009100517163 A CN 2009100517163A CN 200910051716 A CN200910051716 A CN 200910051716A CN 101572497 B CN101572497 B CN 101572497B
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Abstract
The invention relates to a method for building an industrial AC/DC wide range input power module, which comprises the following steps: connecting an AC input and a DC input to the input end of a bridge circuit first, wherein the input end and the output end of an AC input high-frequency transformer are connected with the output end of the bridge circuit and the input end of a DC input channel respectively. The method is characterized is characterized in that the input end of a DC input high-frequency transformer is connected with the output end of the bridge circuit through an input switch, sothat the bridge circuit forms two paths of outputs; and two ends of a switch controller with the switch and the output end of the bridge circuit are respectively for driving the switch, and simultane ously, the enable end and the power supply end of the switch controller are respectively connected with the AC input high-frequency transformer. The method has the advantages that the alternating current and the direct current share an interface input, have no polar requirement after rectification by a rectifier bridge and reduce the complexity of user wiring, the power supply conversion efficiency is improved, and the system loss is reduced. The wide range voltage input capacity enhances the system application level.
Description
Technical field
The present invention relates to a kind of method of building industrial AC/DC wide range input power module, adopt the nonpolarity wide region input of shared interface alternating current-direct current power supply.
Background technology
Common AC/DC wide range input power supply has following two kinds of framework modes:
As shown in Figure 1, alternating current-direct current adopts two-way independently to import: the one tunnel exports after exchanging input process rectifier bridge and isolating converter, and the direct current input is directly parallel on the output channel through diode by other interface.This method framework is simple, does not need passage control.But needing increases a connector, simultaneously input is had the requirement of polarity.
As shown in Figure 2, the shared input interface of alternating current-direct current: interface adopts the tripod input, must define in strict accordance with input pin during the alternating current-direct current input, and wherein a pin is the shared grounding pin simultaneously.This framework only adopts single input interface, and is simple in structure.Shortcoming is the requirement that input is had polarity equally, and power-efficient is lower during the direct current input.
These two kinds industrial power supply framework modes are ripe technically, can satisfy the needs of industrial system power supply design in certain application, but under the nonpolarity wide region alternating current-direct current input of industry spot requires, can not satisfy the requirement of system design.
Summary of the invention
The purpose of this invention is to provide a kind of module architectures method that can satisfy the nonpolarity wide region alternating current-direct current input of industry spot requirement.
In order to achieve the above object, technical scheme of the present invention has provided a kind of method of building industrial AC/DC wide range input power module, the steps include:
Step 1, will exchange the input that input and direct current input insert bridge circuit, exchange on the input of the input of input high frequency transformer and output that output is connected to bridge circuit and direct current output channel, it is characterized in that,
The input of step 2, direct current input high frequency transformer makes bridge circuit form two-way output by the output of input diverter switch access bridge circuit;
After the start, on-off controller is judged input voltage range, exchanges under the input condition not Closing Switch, exchanges input translator work.In direct current when input, be the control its switch closure then, makes input voltage switch to the work of DC converter passage, and closes the communication channel transducer, to improve the conversion efficiency of power supply, reduces loss.
The invention has the advantages that: the input of alternating current-direct current shared interface, through nonpolarity requirement after the rectifier bridge rectification, reduced the complexity of terminal block.On-off controller control alternating current-direct current passage automaticallyes switch, and has improved power supply conversion efficiency, has reduced system loss.The wide-range voltage input capability has strengthened the system applies level.
Description of drawings
Fig. 1 is that existing alternating current-direct current two-way is independently imported the power supply structure schematic diagram;
Fig. 2 has polarity input power supply structure schematic diagram for existing alternating current-direct current shared interface;
Fig. 3 is the nonpolarity input power supply structure of an a kind of shared interface provided by the invention schematic diagram;
Fig. 4 is the circuit diagram of on-off controller among the present invention;
Fig. 5 A is for exchanging the coiling schematic diagram of input high frequency transformer among the present invention;
Fig. 5 B is the coiling schematic diagram of direct current input high frequency transformer among the present invention.
Embodiment
Specify the present invention below in conjunction with embodiment.
Embodiment
In conjunction with Fig. 3 a kind of method provided by the invention is described, step is:
Step 1, will exchange the input that input and direct current input insert bridge circuit, exchange on the input of the input of input high frequency transformer and output that output is connected to bridge circuit and direct current output channel DC/DC, it is characterized in that,
The input of step 2, direct current input high frequency transformer is by input diverter switch 1, and diverter switch 1 adopts MOSFET, inserts the output of bridge circuit, makes bridge circuit form two-way output;
As shown in Figure 4, circuit diagram for on-off controller, comprise MCU, the input of MCU connects the output of described bridge circuit, the output of MCU connects the input of diverter switch drive circuit, the base stage that enables output connection triode of MCU, the emitter grounding of triode, the collector electrode of triode connects the input that enables of voltage source and described interchange input high frequency transformer respectively, and wherein MCU selects 8 single-chip microcomputers for use.
Be depicted as the coiling schematic diagram that exchanges input high frequency transformer and direct current input high frequency transformer as Fig. 5 A and Fig. 5 B, the winding mode that exchanges the input high frequency transformer is, former limit main circuit coil 2 and former limit control circuit coil 3 are arranged respectively on former limit, secondary main circuit coil 4 is arranged on secondary.And on the former limit of direct current input high frequency transformer and secondary each around a coil.
The concrete parameter of equipment is in the present embodiment:
Power supply input: 15V-28VDC, 86V-260VAC;
Power supply output: 24VDC;
Conversion efficiency :) 75% (specifically by the decision of load size);
Output voltage ripple:＜± 1%
Output voltage precision:＜± 5%.
Claims (2)
1. the method for a building industrial AC/DC wide range input power module the steps include:
Step 1, will exchange the input that input and direct current input insert bridge circuit, exchange on the input of the input of input high frequency transformer and output that output is connected to bridge circuit and direct current output channel (DC/DC), it is characterized in that,
The input of step 2, direct current input high frequency transformer makes bridge circuit form two-way output by the output of input diverter switch (1) access bridge circuit;
Step 3, the two ends of on-off controller are connected on respectively on the output of diverter switch (1) and bridge circuit, be used for driving diverter switch, simultaneously, the Enable Pin and the power end of on-off controller are connected on the interchange input high frequency transformer, described on-off controller comprises MCU, the input of MCU connects the output of described bridge circuit, the output of MCU connects the input of diverter switch drive circuit, the base stage that enables output connection triode of MCU, the emitter grounding of triode, the collector electrode of triode connect the input that enables of voltage source and described interchange input high frequency transformer respectively.
2. the method for a kind of building industrial AC/DC wide range input power module as claimed in claim 1, it is characterized in that, the winding mode of described interchange input high frequency transformer is, former limit main circuit coil (2) and former limit control circuit coil (3) are arranged respectively on former limit, secondary main circuit coil (4) is arranged on secondary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100517163A CN101572497B (en) | 2009-05-21 | 2009-05-21 | Method for building industrial AC/DC wide range input power module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100517163A CN101572497B (en) | 2009-05-21 | 2009-05-21 | Method for building industrial AC/DC wide range input power module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101572497A CN101572497A (en) | 2009-11-04 |
| CN101572497B true CN101572497B (en) | 2011-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100517163A Expired - Fee Related CN101572497B (en) | 2009-05-21 | 2009-05-21 | Method for building industrial AC/DC wide range input power module |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106208639A (en) * | 2015-05-07 | 2016-12-07 | 中兴通讯股份有限公司 | Input adaptive Switching power |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1596504A (en) * | 2002-09-30 | 2005-03-16 | 罗姆股份有限公司 | DC/AC conversion device and AC power supply method |
| CN1780130A (en) * | 2004-11-24 | 2006-05-31 | 溧阳市华元电源设备厂 | Major-loop series HF switching power supply |
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2009
- 2009-05-21 CN CN2009100517163A patent/CN101572497B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1596504A (en) * | 2002-09-30 | 2005-03-16 | 罗姆股份有限公司 | DC/AC conversion device and AC power supply method |
| CN1780130A (en) * | 2004-11-24 | 2006-05-31 | 溧阳市华元电源设备厂 | Major-loop series HF switching power supply |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2004-64813A 2004.02.26 |
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| CN101572497A (en) | 2009-11-04 |
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