CN207926442U - Transformer and the phase shift power supply exported around rectification redundancy - Google Patents
Transformer and the phase shift power supply exported around rectification redundancy Download PDFInfo
- Publication number
- CN207926442U CN207926442U CN201721363633.4U CN201721363633U CN207926442U CN 207926442 U CN207926442 U CN 207926442U CN 201721363633 U CN201721363633 U CN 201721363633U CN 207926442 U CN207926442 U CN 207926442U
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- China
- Prior art keywords
- transformer
- power supply
- output
- unit
- redundancy
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- 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.)
- Expired - Fee Related
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Abstract
The utility model is related to a kind of transformer and around the phase shift power supply of rectification redundancy output, pass through novel design of transformer, two similar windings are taken in outlet side, share output current, a common end is shared between two windings, output connects the independent rectified power pipe of two-way, and the output of the independent rectified power pipe of two-way is connected together, the common output power supply for electrical equipment for giving power supply.Transformer output is divided into 2 windings, the electric current of each winding will be the 1/2 of output, be conducive to the coiling of transformer；Each winding exports the independent rectified power pipe connect, because the reduction of electric current facilitates the type selecting of device；When independent rectified power pipe breaks down all the way, another way is unaffected when having, and ensure that the output reliability service of power supply.
Description
Technical field
The phase shift power supply that the utility model is originally related to a kind of transformer and is exported around rectification redundancy belongs to high-frequency and high-voltage isolation
The technical field of type DC DC (DC-DC) power supply.
Background technology
In mixed dynamic, electric car power supply, vehicle-mounted DC/DC is used to the voltage of high tension battery being converted into low pressure, to
It charges to low tension battery, while powering load.Because automobile storage battery supply voltage is relatively low, power grade is continuously improved,
Power density requirements are big, the problems such as bringing loss and heat dissipation therewith, in order to improve the efficiency of DC/DC, reduce volume, reduce at
This takes many novel methods while application soft switch technique on transformer winding and reliably protecting.
Utility model content
The purpose of this utility model is to provide a kind of power supply of low cost and high reliability, to solve transformer cost mistake
Height, it is not easy to manufacture, and output power supply trouble when have redundancy can online backup the problem of.
To achieve the above object, the embodiment of the utility model includes：
A kind of transformer simultaneously becomes around the phase-shifting full-bridge power supply of rectification redundancy output, including full-bridge phase shifting unit, high-frequency isolation
Depressor unit, diode, output filter unit, the full-bridge phase shifting unit connection high voltage dc bus become with high-frequency isolation
Depressor unit, diode connect high-frequency isolation transformer unit and output filter unit, output filter unit connection load
Accumulator.
Further, the full-bridge phase shifting unit realizes the duty ratio switch-mode regulation of busbar voltage；The high-frequency isolation becomes
Depressor unit realizes electrical isolation and voltage change ratio；The diode realizes the rectification of AC-to DC；The output filter
Wave unit realizes the filtering of output voltage.
Further, the high-frequency isolation transformer unit is integrated output winding parallel structure.
Further, the two-way diode rectifier circuit is mutual indepedent, while powering load.
Further, the load battery tension is 12V.
Further, the high voltage dc bus voltage is 360V.
The utility model has the advantages that：Cost can be reduced, and can drop with the making of very convenient transformer
The failure rate of low power supply, makes that there are power supplys when failure risk to remain to powering load.
Description of the drawings
Fig. 1 is the principle of device structural schematic diagram of the utility model.
Specific implementation mode
The utility model is described in more detail below in conjunction with the accompanying drawings.
Such as Fig. 1, the utility model is a kind of transformer and the phase-shifting full-bridge power supply exported around rectification redundancy, including full-bridge moves
Phase element, high-frequency isolation transformer unit, diode, output filter unit, the full-bridge phase shifting unit connect high straightening
Busbar and high-frequency isolation transformer unit are flowed, diode connects high-frequency isolation transformer unit and output filter unit, defeated
Go out filter unit connection load accumulator.
This power supply is applied in mixed dynamic, electric vehicle, inputs as high voltage dc bus, voltage 360V, by phase-shifting full-bridge,
12V is rectified into after isolating transformer decompression to charge a battery.This power supply is different from the power supply in present similar application, general electricity
Isolating transformer is directly applied in source, takes single first winding and secondary winding transformation, then the simple side of single rectification output
Formula, not only relatively high in cost, failure rate is also relatively high.
As other embodiment, phase-shifting full-bridge unit and output filter unit can also use other types Switching Power Supply
Topology knot, accumulator can also be other kinds of accumulator in addition to lead-acid accumulator.
High-frequency isolation transformer primary still uses line around mode because electric current is little.Secondary was originally taken because electric current is bigger
Compare thick copper sheet coiling, is divided into two groups with than relatively thin copper sheet coiling in this method, the center line of two groups of copper sheets is connected to one
It rises, 5 interfaces of secondary outlet connect corresponding diode rectification unit, are original half by current reduction, and be conducive to
The redundancy protecting circuit of rear end.
Diode is divided into two groups of independent units, and each unit is correspondingly connected with one group of secondary of high-frequency isolation transformer
Output, it is in parallel after rectification respectively to give load storage battery power supply together.The method can not only reduce electric current, be conducive to selection diode list
Member simultaneously reduce cost, the reliability of power supply can also be increased, if there is one group of diode damages, another group it is unaffected after
Continue and give load accumulator charging, while electric current is shared the temperature of rear diode and can reduced, and diode is more advantageous to
Service life.
Claims (5)
1. a kind of transformer and around rectification redundancy output phase shift power supply, which is characterized in that including full-bridge phase shifting unit, high frequency every
From transformer unit, diode, output filter unit, full-bridge phase shifting unit connection high voltage dc bus and high frequency every
From transformer unit, diode connects high-frequency isolation transformer unit and output filter unit, output filter unit connection
Load accumulator；
The full-bridge phase shifting unit realizes the duty ratio switch-mode regulation of busbar voltage；The high-frequency isolation transformer unit realizes electricity
Air bound from and voltage change ratio；The diode realizes the rectification of AC-to DC；The output filter unit realizes output
The filtering of voltage.
2. transformer according to claim 1 and the phase shift power supply exported around rectification redundancy, which is characterized in that the high frequency
Isolating transformer unit is the output winding parallel structure integrated.
3. transformer according to claim 1 and the phase shift power supply exported around rectification redundancy, which is characterized in that two pole
Pipe unit, two-way diode rectifier circuit is mutual indepedent, while powering load.
4. transformer according to claim 3 and the phase shift power supply exported around rectification redundancy, which is characterized in that the load
Battery tension is 12V.
5. transformer according to claim 4 and the phase shift power supply exported around rectification redundancy, which is characterized in that the high pressure
DC bus-bar voltage is 360V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721363633.4U CN207926442U (en) | 2017-10-23 | 2017-10-23 | Transformer and the phase shift power supply exported around rectification redundancy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721363633.4U CN207926442U (en) | 2017-10-23 | 2017-10-23 | Transformer and the phase shift power supply exported around rectification redundancy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207926442U true CN207926442U (en) | 2018-09-28 |
Family
ID=63612946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721363633.4U Expired - Fee Related CN207926442U (en) | 2017-10-23 | 2017-10-23 | Transformer and the phase shift power supply exported around rectification redundancy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207926442U (en) |
-
2017
- 2017-10-23 CN CN201721363633.4U patent/CN207926442U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20180928 Termination date: 20191023 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |