CN204376753U - unipolar pulse power supply - Google Patents
unipolar pulse power supply Download PDFInfo
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- CN204376753U CN204376753U CN201420867995.7U CN201420867995U CN204376753U CN 204376753 U CN204376753 U CN 204376753U CN 201420867995 U CN201420867995 U CN 201420867995U CN 204376753 U CN204376753 U CN 204376753U
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Abstract
The utility model discloses unipolar pulse power supply, comprise input setup unit, central control unit, rectification circuit, filter circuit, Chopper driving circuit, load circuit, signal acquisition circuit and delay angle, the signal output part of described input setup unit connects the signal input part of central control unit, the signal output part of central control unit is connected with the signal input part of rectification circuit, the signal output part of rectification circuit is connected with the input of filter circuit, the signal output part of filter circuit is connected with Chopper driving circuit signal input, Chopper driving circuit signal output connects load circuit, load circuit is connected with the signal input part of signal acquisition circuit, the output of signal acquisition circuit connects the signal input part of central control unit, described delay angle is connected between central control unit and rectification circuit.The utility model can realize output pulse width, frequency and amplitude continuously adjustabe.
Description
Technical field
The utility model relates to a kind of power supply, is specifically related to a kind of unipolar pulse power supply.
Background technology
The pulse power refers to that the load of user needs intermittently to power up, and namely according to regular hour rule, powers up the regular hour to load, then power-off regular hour again, and break-make once forms one-period, so repeatedly performs, and just forms the pulse power.The pulse power is mainly used in the fields such as plasma heat treatment, pulse plating, arc welding, electrobrightening, high-frequency impulse induction heating, liquid discharge-induced explosion.In different application scenarios, different to the requirement of the output voltage of power supply, output current and switching frequency etc.
The development of the pulse power is limited by the development of switching device, and especially great power pulse power source depends on the development of switching device especially.Along with the appearance of the self-turn-off devices such as GTO, create the chopper-type pulse power, the chopper-type pulse power be by the direct current of prime through high-power switch device control after, output cycle and duty ratio are by switching device control impuls, decision highpowerpulse exports, but this kind of power supply exports with input not isolated, excessive to the pressure of electrical network.If increase input isolating transformer, because power is excessive, make volume of transformer huge.Add that switching device is subject to the restriction of operating frequency, make the output frequency of the pulse power very low.Along with pulse power application is more and more extensive, pulse power main development direction is inverse type great power pulse power source, the appearance of some new devices, can improve the performance of pulse power system but can not change the inverter main circuit topology of power-supply system.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of unipolar pulse power supply, can realize output pulse width, frequency and amplitude continuously adjustabe.
Unipolar pulse power supply, comprise input setup unit, central control unit, rectification circuit, filter circuit, Chopper driving circuit, load circuit, signal acquisition circuit and delay angle, the signal output part of described input setup unit connects the signal input part of central control unit, the signal output part of central control unit is connected with the signal input part of rectification circuit, the signal output part of rectification circuit is connected with the input of filter circuit, the signal output part of filter circuit is connected with Chopper driving circuit signal input, Chopper driving circuit signal output connects load circuit, load circuit is connected with the signal input part of signal acquisition circuit, the output of signal acquisition circuit connects the signal input part of central control unit.
Described delay angle is connected between central control unit and rectification circuit.
Further, the signal input part of described central control unit is also connected with temperature detecting unit, current detecting unit and short-circuit protection unit, is unimpeded in order to better protective circuit.
Further, the signal output part of described central control unit is also connected with display unit, clearly can check the instantaneous value of input set point and output.
Preferably, described central control unit is DSP microcontroller, is to utilize DSP fast response time, judge the advantages such as accurate, for the operation of whole system provides safeguard.
The beneficial effects of the utility model are: the utility model three-phase alternating current converts direct current to through rectification circuit and exports with impulse form, carry out after determination processing through central controller, within the specific limits can output pulse width, frequency and amplitude continuously adjustabe.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the utility model unipolar pulse power supply.
Embodiment
Accompanying drawing discloses concrete structure of the present utility model without limitation, and below in conjunction with accompanying drawing, the utility model will be further described.
As shown in Figure 1, unipolar pulse power supply, comprise input setup unit, central control unit, rectification circuit, filter circuit, Chopper driving circuit, load circuit, signal acquisition circuit and delay angle, the signal output part of described input setup unit connects the signal input part of central control unit, the signal output part of central control unit is connected with the signal input part of rectification circuit, the signal output part of rectification circuit is connected with the input of filter circuit, the signal output part of filter circuit is connected with Chopper driving circuit signal input, Chopper driving circuit signal output connects load circuit, load circuit is connected with the signal input part of signal acquisition circuit, the output of signal acquisition circuit connects the signal input part of central control unit, described delay angle is connected between central control unit and rectification circuit.The signal input part of described central control unit is also connected with temperature detecting unit, current detecting unit and short-circuit protection unit.The signal output part of described central control unit is also connected with display unit.Described central control unit is DSP microcontroller.
The utility model is using DSP microcontroller as the control core of whole system, three-phase alternating current converts direct current to through rectification circuit and exports with impulse form, input setup unit input set point, DSP microcontroller is after calculating and waiting process, control the normal work of rectification unit, and then control delay angle, delay angle again by current amplitude signal feedback to DSP microcontroller, after DSP microcontroller processes, export the pulse current of different amplitude, reach output current amplitude adjustable, pulse duration and frequency then input DSP microcontroller by analog voltage, the A/D converter built-in through DSP microcontroller converts thereof into digital signal, and then determine output current pulse duration and frequency, the use of filter circuit makes output voltage smooth-out, voltage Chopper driving circuit load circuit output again again, synchronous signal Acquisition Circuit Real-time Collection outputs signal, and live signal feedback is sent into DSP microcontroller, guarantees that output valve reaches the set point of expection.
Claims (4)
1. unipolar pulse power supply, comprise input setup unit, central control unit, rectification circuit, filter circuit, Chopper driving circuit, load circuit, signal acquisition circuit and delay angle, it is characterized in that: the signal output part of described input setup unit connects the signal input part of central control unit, the signal output part of central control unit is connected with the signal input part of rectification circuit, the signal output part of rectification circuit is connected with the input of filter circuit, the signal output part of filter circuit is connected with Chopper driving circuit signal input, Chopper driving circuit signal output connects load circuit, load circuit is connected with the signal input part of signal acquisition circuit, the output of signal acquisition circuit connects the signal input part of central control unit, described delay angle is connected between central control unit and rectification circuit.
2. unipolar pulse power supply according to claim 1, is characterized in that: the signal input part of described central control unit is also connected with temperature detecting unit, current detecting unit and short-circuit protection unit.
3. unipolar pulse power supply according to claim 1, is characterized in that: the signal output part of described central control unit is also connected with display unit.
4. unipolar pulse power supply according to claim 1, is characterized in that: described central control unit is DSP microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420867995.7U CN204376753U (en) | 2014-12-31 | 2014-12-31 | unipolar pulse power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420867995.7U CN204376753U (en) | 2014-12-31 | 2014-12-31 | unipolar pulse power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204376753U true CN204376753U (en) | 2015-06-03 |
Family
ID=53332930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420867995.7U Expired - Fee Related CN204376753U (en) | 2014-12-31 | 2014-12-31 | unipolar pulse power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204376753U (en) |
-
2014
- 2014-12-31 CN CN201420867995.7U patent/CN204376753U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20151231 |
|
| EXPY | Termination of patent right or utility model |