CN209676121U - A kind of five tunnels output non-isolated power supply - Google Patents
A kind of five tunnels output non-isolated power supply Download PDFInfo
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- CN209676121U CN209676121U CN201821989272.9U CN201821989272U CN209676121U CN 209676121 U CN209676121 U CN 209676121U CN 201821989272 U CN201821989272 U CN 201821989272U CN 209676121 U CN209676121 U CN 209676121U
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Abstract
The utility model discloses a kind of five tunnels to export non-isolated power supply, including shell, is fixed with power circuit in shell；Shell includes shell, is electrically connected with the first output line, the first common ground line, the second output line, the second common ground line, third output line, the 4th output line, the 5th output line, shell terminals, third common ground line and input line in the end of shell；Power circuit includes the first power circuit, second source circuit, third power circuit, the 4th power circuit and the 5th power circuit；First power circuit, second source circuit, third power circuit, the circuit structure of the 4th power circuit and the 5th power circuit are consistent；The case where five tunnels output non-isolated power supply can provide multiple power supplies, can provide different supply voltages according to actual needs, meet multiple-purpose electric appliance multivoltage.
Description
Technical field
The utility model relates to power technique fields, and in particular to a kind of five tunnels output non-isolated power supply.
Background technique
As power electronic equipment is using more and more extensive, requirement of the electronic load to power supply be also more and more diversified.
In communication and computer system, the voltage of multiple grades is generally required in same system while being powered.Ring is used in special
Border needs the power supply of multiple voltages, and existing isolated power supply is all single supply output, and adaptation range is smaller, is not able to satisfy
The needs of more power conditions.
The method generallyd use at present is to access independent a whole set of power-supply system in the place for needing power supply.Such method
Although being well positioned to meet the requirement of load, circuit is complicated, and low efficiency, volume is big, at high cost.
Accordingly, it is desirable to provide a kind of multiple power supplies, can provide multiple power supplies, and each power supply being capable of root simultaneously
The case where different supply voltages is provided according to actual needs, meets multiple-purpose electric appliance multivoltage.
Utility model content
The purpose of this utility model is to provide a kind of five tunnels to export non-isolated power supply, cannot be same to solve existing power supply
When multiple supply voltages, the low problem of Power integrity are provided.
To achieve the above object, the technical solution of the utility model are as follows:
Five tunnels of one kind export non-isolated power supply, including shell, are fixed with power circuit in Yu Suoshu shell；The shell packet
Shell is included in the end of the shell to be electrically connected with the first output line, the first common ground line, the second output line, second public connect
Ground wire, third output line, the 4th output line, the 5th output line, shell terminals, third common ground line and input line；
The power circuit include the first power circuit, second source circuit, third power circuit, the 4th power circuit and
5th power circuit；First power circuit, second source circuit, third power circuit, the 4th power circuit and the 5th electricity
The circuit structure of source circuit is consistent.
Preferably, first power circuit includes input filter circuit, regulator, rectification circuit, output
Filter circuit, feed circuit and under-voltage feed circuit；Each power circuit is electrically connected first output line, described second
Output line, the third output line, the 4th output line and the 5th output line；The output end of the input filter circuit
Connect the regulator；The output of the regulator terminates the rectification circuit；The rectification circuit
Output termination output filter circuit；The reversed current feed circuit of the output end of the output filter circuit；The output end of the feed circuit
Connect regulator.
Preferably, it is 2A that the output voltage of first output line, which is+3.3V corresponding current,；Second output line it is defeated
It is 2A that voltage, which is+2.5V corresponding current, out；It is 2A that the output voltage of the third output line, which is+1.8V corresponding current,；Described
The output voltage of four output lines is that+1.2V corresponding current is 2A；The output voltage of 5th output line is that+1V corresponding current is
2A。
Preferably, the first common ground line, the second common ground line and the third common ground line connect
Ground.
Preferably, the input line connects input power.
The utility model has the advantages that
Five tunnel exports non-isolated power supply and is used to provide multi-channel dc power supply function to microwave components, provides according to actual needs
Different supply voltages meets multiple-purpose electric appliance multivoltage needs；
Five tunnel output non-isolated power supply is made of five groups of power supplys, through regulator after input voltage input filter
Rectification filters output again, and output voltage feeds back to regulator；
The regulator uses pwm pulse width modulation technology, is cut into input direct-current voltage by " copped wave "
Pulse voltage, regulator is by output voltage feedback regulation duty ratio size, when output voltage is lower than voltage rating
When, regulator increases duty ratio, to increase output voltage；When output voltage is higher than voltage rating, switch electricity
Adjuster is pressed to reduce duty ratio, to reduce output voltage, to realize dynamic equilibrium.
Detailed description of the invention
Fig. 1 is the main view of the shell of the five tunnels output non-isolated power supply of utility model.
Fig. 2 is the schematic diagram of power circuit in utility model.
In figure: the first output line of 1-；2- the first common ground line；The second output line of 3-；4- the second common ground line；5-
Three output lines；The 4th output line of 6-；The 5th output line of 7-；8- shell terminals；9- third common ground line；10- input line；
11- shell.
Specific embodiment
The following examples illustrate the utility model, but is not intended to limit the scope of the present invention.
Embodiment
Five tunnels of the present embodiment export non-isolated power supply, are fixed with power circuit in Yu Suoshu shell；The shell includes
Shell 11 is electrically connected with the first output line 1, the first common ground line 2, the second output line 3, second in the end of the shell 11
Common ground line 4, third output line 5, the 4th output line 6, the 5th output line 7, shell terminals 8,9 and of third common ground line
Input line 10；
The power circuit include the first power circuit, second source circuit, third power circuit, the 4th power circuit and
5th power circuit；First power circuit, second source circuit, third power circuit, the 4th power circuit and the 5th electricity
The circuit structure of source circuit is consistent.
First power circuit includes input filter circuit, regulator, rectification circuit, output filtered electrical
Road, feed circuit and under-voltage feed circuit；
Each power circuit is electrically connected first output line 1, second output line 3, the third output line
5, the 4th output line 6 and the 5th output line 7；
The output of the input filter circuit terminates the regulator；The output of the regulator
Terminate the rectification circuit；The output of the rectification circuit terminates output filter circuit；The output end of the output filter circuit
Reversed current feed circuit；The output of the feed circuit terminates regulator.
It is 2A that the output voltage of first output line 1, which is+3.3V corresponding current,；The output electricity of second output line 3
Pressure is that+2.5V corresponding current is 2A；It is 2A that the output voltage of the third output line 5, which is+1.8V corresponding current,；Described 4th is defeated
The output voltage of outlet 6 is that+1.2V corresponding current is 2A；The output voltage of 5th output line 7 is that+1V corresponding current is
2A。
The first common ground line 2, the second common ground line 4 and the third common ground line 9 are grounded.Institute
It states input line 10 and connects input power.
Five tunnel exports non-isolated power supply and is used to provide multi-channel dc power supply function to microwave components.Five tunnel output is non-isolated
Power supply is made of five groups of power supplys, filters output, output voltage again through regulator rectification after input voltage input filter
Feed back to regulator.
The regulator uses pwm pulse width modulation technology, is cut into input direct-current voltage by " copped wave "
Pulse voltage, regulator is by output voltage feedback regulation duty ratio size, when output voltage is lower than voltage rating
When, regulator increases duty ratio, to increase output voltage；When output voltage is higher than voltage rating, switch electricity
Adjuster is pressed to reduce duty ratio, to reduce output voltage, to realize dynamic equilibrium.
Component selected by five tunnel output non-isolated power supply can be purchased, and required test equipment and instrument are complete.Using PCB
Surface mount process, metal shell cover the parallel soldering and sealing encapsulation of plate.
Five tunnel output non-isolated power supply output be respectively+3.3V/2A ,+2.5V/2A ,+1.8V/2A ,+1.2V/2A ,+
The DC/DC non-isolated power supply of 1.0V/2A.
The utility model uses pwm pulse width modulation technology, and input direct-current voltage is cut into pulse electricity by " copped wave "
Pressure, adjuster adjusts duty ratio, then obtains required DC voltage by rectification, filtering.
The utility model uses 10# steel shell, and cover board is encapsulated using parallel soldering and sealing, hermetically sealed, dustproof and waterproof, moisture-proof anti-
It is wet etc., different zones varying environment requirement can be met, power supply can be worked normally, is not damaged.
The utility model uses bottom shell radiating mode, and power-efficient can meet 85 DEG C of rings of high temperature up to 94% or more
Under border, full load continuously operates normally 48h, volume 40*20*9.25mm3。
The utility model has self-checking function: output overcurrent protection, current-limiting type；Output short circuit protection turns off formula；Input is owed
Pressure protection, turns off formula.
The utility model dustproof and waterproof, small in size while moisture-proof damp proof, multiple-channel output, it is also necessary to meet 85 DEG C of high temperature
Under environment, full load continuously operates normally 48h, and key point is how to meet the output of five tunnels under conditions of hermetically sealed small size
And cooling requirements.
The utility model conducts the heat of heat-generating components inside to outer casing bottom, by heater in limited areal
The mode of part rational deployment realizes the requirement of high temperature continuous work.
Although above having made detailed description to the utility model with generality explanation and specific embodiment,
On the basis of the utility model, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, these modifications or improvements on the basis of without departing from the spirit of the present invention, belong to the utility model and want
Seek the range of protection.
Claims (5)
1. a kind of five tunnels export non-isolated power supply, which is characterized in that including shell, be fixed with power circuit in Yu Suoshu shell；
The shell includes shell (11), and the end of Yu Suoshu shell (11) is electrically connected with the first output line (1), the first common ground line
(2), the second output line (3), the second common ground line (4), third output line (5), the 4th output line (6), the 5th output line
(7), shell terminals (8), third common ground line (9) and input line (10)；
The power circuit includes the first power circuit, second source circuit, third power circuit, the 4th power circuit and the 5th
Power circuit；First power circuit, second source circuit, third power circuit, the 4th power circuit and the 5th power supply electricity
The circuit structure on road is consistent.
2. five tunnel according to claim 1 exports non-isolated power supply, which is characterized in that first power circuit includes defeated
Enter filter circuit, regulator, rectification circuit, output filter circuit, feed circuit and under-voltage feed circuit；
Each power circuit is electrically connected first output line (1), second output line (3), the third output line
(5), the 4th output line (6) and the 5th output line (7)；
The output of the input filter circuit terminates the regulator；The output of the regulator terminates
The rectification circuit；The output of the rectification circuit terminates output filter circuit；The output end of the output filter circuit is reversed
Current feed circuit；The output of the feed circuit terminates regulator.
3. five tunnel according to claim 1 exports non-isolated power supply, which is characterized in that first output line (1) it is defeated
It is 2A that voltage, which is+3.3V corresponding current, out；It is 2A that the output voltage of second output line (3), which is+2.5V corresponding current,；It is described
It is 2A that the output voltage of third output line (5), which is+1.8V corresponding current,；The output voltage of 4th output line (6) is+1.2V
Corresponding current is 2A；It is 2A that the output voltage of 5th output line (7), which is+1V corresponding current,.
4. five tunnel according to claim 1 exports non-isolated power supply, which is characterized in that the first common ground line (2),
The second common ground line (4) and the third common ground line (9) are grounded.
5. five tunnel according to claim 1 exports non-isolated power supply, which is characterized in that the input line (10) connects input electricity
Source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821989272.9U CN209676121U (en) | 2018-11-29 | 2018-11-29 | A kind of five tunnels output non-isolated power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821989272.9U CN209676121U (en) | 2018-11-29 | 2018-11-29 | A kind of five tunnels output non-isolated power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209676121U true CN209676121U (en) | 2019-11-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821989272.9U Active CN209676121U (en) | 2018-11-29 | 2018-11-29 | A kind of five tunnels output non-isolated power supply |
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| CN (1) | CN209676121U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113067478A (en) * | 2020-01-02 | 2021-07-02 | 中车株洲电力机车研究所有限公司 | Power supply device and power module driving system |
-
2018
- 2018-11-29 CN CN201821989272.9U patent/CN209676121U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113067478A (en) * | 2020-01-02 | 2021-07-02 | 中车株洲电力机车研究所有限公司 | Power supply device and power module driving system |
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