CN206517303U - A kind of high-performance direct current stabilized current supply - Google Patents
A kind of high-performance direct current stabilized current supply Download PDFInfo
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- CN206517303U CN206517303U CN201720259376.3U CN201720259376U CN206517303U CN 206517303 U CN206517303 U CN 206517303U CN 201720259376 U CN201720259376 U CN 201720259376U CN 206517303 U CN206517303 U CN 206517303U
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Abstract
The utility model is related to a kind of high-performance direct current stabilized current supply, belongs to power electronic equipment technical field.Technical scheme is：Include phase whole-bridging circuit（11）, automatic discharging loop（12）And output filter（13）, the automatic discharging loop（12）With phase whole-bridging circuit（11）Output end interconnect, output filter（13）It is arranged on phase whole-bridging circuit（11）Current sensor front end.The beneficial effects of the utility model are：By adding automatic discharge circuit so that when main circuit is stopped, the voltage on output filter capacitor is bled off as early as possible；Add relay protecting function so that during circuit irregular working, cut off input voltage, be so effectively guaranteed the safety of the person and equipment；And in design, LEM is put after the filter so that the electric current for entering LEM is smoother, so as to ensure that the stabilization of current sampling signal so that circuit performance is more stablized, output current ripple reduces.
Description
Technical field
The utility model is related to a kind of high-performance direct current stabilized current supply, belongs to power electronic equipment technical field.
Background technology
With the development and progress of society, the application of power supply also more and more extensively, in actual applications, for ensure the person and
The safety of equipment is, it is necessary to try to improve the performance indications of power supply.
Utility model content
The utility model purpose is to provide a kind of high-performance direct current stabilized current supply, by adding automatic discharge circuit so that
When main circuit is stopped, the voltage on output filter capacitor is bled off as early as possible, while adding relay protecting function so that electricity
During the irregular working of road, input voltage is cut off, the safety of the person and equipment is so effectively guaranteed, efficiently solves the back of the body
Above mentioned problem present in scape technology.
The technical solution of the utility model is：A kind of high-performance direct current stabilized current supply, comprising phase whole-bridging circuit, automatically puts
The output end of electrical circuit and output filter, the automatic discharging loop and phase whole-bridging circuit is interconnected, output filter
It is arranged on the front end of the current sensor of phase whole-bridging circuit.
Relay protecting function circuit is provided with the phase whole-bridging circuit.
The beneficial effects of the utility model are：By adding automatic discharge circuit so that when main circuit is stopped, as early as possible
Bleed off the voltage on output filter capacitor；Add relay protecting function so that during circuit irregular working, cut-out input electricity
Pressure, is so effectively guaranteed the safety of the person and equipment；And in design, LEM is put after the filter so that enter
The electric current for entering LEM is smoother, so as to ensure that the stabilization of current sampling signal so that circuit performance is more stablized, output electricity
Flow liner ripple reduces.
Brief description of the drawings
Fig. 1 is circuit structure diagram of the present utility model；
Fig. 2 is relay protecting function circuit of the present utility model；
In figure：Phase whole-bridging circuit 11, automatic discharging loop 12 and output filter 13.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the utility model is described in further detail.
A kind of high-performance direct current stabilized current supply, includes phase whole-bridging circuit 11, automatic discharging loop 12 and output filter
13, the automatic discharging loop 12 and the output end of phase whole-bridging circuit 11 are interconnected, and output filter 13 is arranged on phase shift
The front end of the current sensor of full-bridge circuit 11.
Relay protecting function circuit is provided with the phase whole-bridging circuit 11.
In actual applications, the utility model uses phase whole-bridging circuit 11, and outlet side adds metal-oxide-semiconductor（Field-effect is brilliant
Body pipe）S5 and resistance R constitute automatic discharging loop 12.When circuit is stopped, i.e. main circuit metal-oxide-semiconductor is stopped
When, metal-oxide-semiconductor S5 is open-minded, makes its work 2 seconds, so the electricity on output filter capacitor is bled off can as early as possible, so as to effectively protect
The personal safety of operator and the safety of equipment are protected.
Output filter is placed on LEM（Current sensor）Before（Output filter is typically all to be placed on after circuit
End）, so effectively reduce the fluctuation into LEM current signal so that the current signal for entering LEM is smoother,
Current sampling signal is stable make it that circuital current output is stable, improves the stability of circuit, and reduce the electric current line of output
Ripple.
Main circuit adds relay protecting function circuit.Referring to Fig. 2, under normal circumstances, CAN（Controller local area network）
Be transmitted through come signal XIN1 be low level, now optocoupler 3,4 pin conducting, now triode Q10 1,2 pin bear it is certain just
To voltage so that triode Q10 is turned on, 24V voltages are added in the 3 of relay, 4 pin, and relay is in closure state.Main circuit electricity
Stream flows through 1 pin of relay, 2 pin.When exporting abnormal, CAN communication transmits a high level signal, and now optocoupler 3,4 pin are not
It can turn on, triode can not be turned on, 24V control electricity can not be added in 3,4 pin of relay so that relay disconnects, that is, cuts off
Input voltage, is effectively protected circuit and personal safety.
Claims (2)
1. a kind of high-performance direct current stabilized current supply, it is characterised in that：Include phase whole-bridging circuit（11）, automatic discharging loop（12）
And output filter（13）, the automatic discharging loop（12）With phase whole-bridging circuit（11）Output end interconnect, output
Wave filter（13）It is arranged on phase whole-bridging circuit（11）Current sensor front end.
2. a kind of high-performance direct current stabilized current supply according to claim 1, it is characterised in that：The phase whole-bridging circuit
（11）In be provided with relay protecting function circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720259376.3U CN206517303U (en) | 2017-03-17 | 2017-03-17 | A kind of high-performance direct current stabilized current supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720259376.3U CN206517303U (en) | 2017-03-17 | 2017-03-17 | A kind of high-performance direct current stabilized current supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206517303U true CN206517303U (en) | 2017-09-22 |
Family
ID=59870509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720259376.3U Active CN206517303U (en) | 2017-03-17 | 2017-03-17 | A kind of high-performance direct current stabilized current supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206517303U (en) |
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2017
- 2017-03-17 CN CN201720259376.3U patent/CN206517303U/en active Active
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