CN204615668U - A kind of high-power numerical control driving power based on surge protection circuit - Google Patents
A kind of high-power numerical control driving power based on surge protection circuit Download PDFInfo
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- CN204615668U CN204615668U CN201520331185.4U CN201520331185U CN204615668U CN 204615668 U CN204615668 U CN 204615668U CN 201520331185 U CN201520331185 U CN 201520331185U CN 204615668 U CN204615668 U CN 204615668U
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- 238000001914 filtration Methods 0.000 claims description 18
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- 238000012545 processing Methods 0.000 abstract description 10
- 230000004044 response Effects 0.000 abstract description 6
- 238000013459 approach Methods 0.000 abstract description 5
- 238000003698 laser cutting Methods 0.000 abstract description 5
- 238000012913 prioritisation Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 4
- 230000007774 longterm Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
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- 238000003754 machining Methods 0.000 description 2
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- 238000006243 chemical reaction Methods 0.000 description 1
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- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010147 laser engraving Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
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Abstract
The utility model discloses a kind of high-power numerical control driving power based on surge protection circuit, comprise filter rectifier, surge protection circuit, accessory power supply for subsequent use, numerical control module, boosting inverter circuit, feedback circuit and comparator; Wherein filter rectifier, surge protection circuit, accessory power supply for subsequent use, numerical control module, boosting inverter circuit are connected successively, and described boosting inverter circuit is also connected with numerical control module by feedback module connected successively, comparator; The utility model, based on the digital control approach of CPLD, can be competent at the control impuls of 10kb/s in laser processing, can complete the engraving of gradient engraving and small character well.In Laser cutting, can ensure at the lower stable power stage that works long hours; Accessory power supply VIPer22 A for subsequent use, adopts the accessory power supply for subsequent use based on VIPer22 A converter and Switch Power Transformer, and output voltage waveforms is stable without larger spike; Frequency response is high, control is accurate and output current ripple is little.
Description
Technical field
The utility model discloses a kind of high-power numerical control driving power based on surge protection circuit, relate to Power Management Design technical field.
Background technology
Some industrial equipments, such as laser process equipment are very high to the requirement of power supply, and power supply is the basis that equipment runs, and does not have power supply not all right, as long as but also and do not mean that power supply is just applicable to metal laser cutting machine and uses.Power supply has certain potential safety hazard, demand fulfillment ask for something simultaneously, and such as, control between+10%--15% by the electric wave of electrical network, China's power supply, due to technical reason, qualitatively Shortcomings, adds human factor, the more difficult control of this fluctuation range.
Laser processing mainly utilizes CO, and laser beam focus makes material melt at material surface, blows away the material be melted with the Compressed Gas coaxial with laser beam simultaneously, has come the cutting of required trace graphics or the engraving of corresponding handicraft surface.Laser processing belongs to noncontact processing, has that processing method is many, strong adaptability, machining accuracy are high, quality good and working (machining) efficiency advantages of higher.Laser Driven power supply is as the direct control unit of laser, and the highest frequency of its optical switch response and light power are stablized directly can affect final processing effect with reliability.
The patent No. is CN103606811A, patent name is the pulse optical fiber driving power control system based on CPLD, this patent improves the stability of laser power, but do not control from power unit, the unsteadiness of power supply still can affect the stability of laser, so this patent does not solve this technical problem from root.
The patent No. is CN201717507U, patent name is a kind of Laser Power Devices, not do not control for the stability of power supply and jitter in the power supply designed in this patent, the problem that the switch just simply improving power supply causes, and the insufficiency of function of this power supply is to support the needs of existing laser processing.
In sum, the stability of existing Laser Driven power supply all can not get good solution at present, has become current problem in urgent need to solve.
Utility model content
Technical problem to be solved in the utility model is: for the defect of prior art; a kind of high-power numerical control driving power based on surge protection circuit is provided; based on the digital control approach of CPLD; the control impuls of 10kb/s can be competent in laser processing, the engraving of gradient engraving and small character can be completed well.In Laser cutting, because the duty ratio of the driving pulse of digital control module output is by the impact of outside non-control signal, can ensure at the lower stable power stage that works long hours; Accessory power supply VIPer22 A for subsequent use, adopts the accessory power supply for subsequent use based on VIPer22 A converter and Switch Power Transformer, and output voltage waveforms is stable without larger spike; Frequency response is high, control is accurate and output current ripple is little, can ensure the work of laser long-term stability.
The utility model is for solving the problems of the technologies described above by the following technical solutions:
Based on a high-power numerical control driving power for surge protection circuit, comprise filter rectifier, surge protection circuit, accessory power supply for subsequent use, numerical control module, boosting inverter circuit, feedback circuit and comparator;
Wherein, described filter rectifier, surge protection circuit, accessory power supply for subsequent use, numerical control module, boosting inverter circuit are connected successively, and described boosting inverter circuit is also connected with numerical control module by feedback module connected successively, comparator;
AC power produces direct voltage after rectification circuit after filtering, described direct voltage is respectively boosting inverter circuit and accessory power supply for subsequent use provides voltage after treatment through surge protection circuit, accessory power supply for subsequent use provides reference voltage for digital control part and feedback fraction, the electric current of feedback circuit sampling boosting inverter circuit output end, the control command exported with numerical control module is compared by comparator thus controls the output current of boosting inverter circuit;
Boosting inverter circuit comprises half-bridge inversion circuit, series resonant circuit, and the input of wherein said half-bridge inversion circuit is connected with the output of surge protection circuit, and the output of described half-bridge inversion circuit is connected with described series resonant circuit;
Described surge protection circuit comprises the first resistance, the second resistance, inductance and diode; the output head anode of described rectification filtering module is connected with one end of inductance, one end of the second resistance respectively; the other end of inductance is connected with the negative pole of diode; the positive pole of diode is connected with one end of the first resistance, and the other end of the first resistance is connected with the negative pole of output end of rectification filtering module, the other end of the second resistance respectively.
As further prioritization scheme of the present utility model, described numerical control module is CPLD digital control module.
As further prioritization scheme of the present utility model, the chip model that auxiliary power module for subsequent use adopts is VIPer22 A.
As further prioritization scheme of the present utility model, also comprise filtration module, the input of described filtration module is connected with the output of described accessory power supply for subsequent use, and the output of described filtration module is connected with CPLD digital control module.
As further prioritization scheme of the present utility model, the chip model that described CPLD digital control module adopts is FLEX601.
The utility model adopts above technical scheme compared with prior art, there is following technique effect: the utility model is based on the digital control approach of CPLD, the control impuls of 10kb/s can be competent in laser processing, the engraving of gradient engraving and small character can be completed well.In Laser cutting, because the duty ratio of the driving pulse of digital control module output is by the impact of outside non-control signal, can ensure at the lower stable power stage that works long hours; Accessory power supply VIPer22 A for subsequent use, adopts the accessory power supply for subsequent use based on VIPer22 A converter and Switch Power Transformer, and output voltage waveforms is stable without larger spike; Frequency response is high, control is accurate and output current ripple is little, can ensure the work of laser long-term stability.
Accompanying drawing explanation
Fig. 1 is modular structure schematic diagram of the present utility model.
Embodiment
Be described below in detail execution mode of the present utility model, the example of described execution mode is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the execution mode be described with reference to the drawings, only for explaining the utility model, and can not being interpreted as restriction of the present utility model.
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail:
System configuration schematic diagram of the present utility model as shown in Figure 1, based on a high-power numerical control driving power for surge protection circuit, comprise filter rectifier, surge protection circuit, accessory power supply for subsequent use, numerical control module, boosting inverter circuit, feedback circuit and comparator;
Wherein, described filter rectifier, surge protection circuit, accessory power supply for subsequent use, numerical control module, boosting inverter circuit are connected successively, and described boosting inverter circuit is also connected with numerical control module by feedback module connected successively, comparator;
AC power produces direct voltage after rectification circuit after filtering, described direct voltage is respectively boosting inverter circuit and accessory power supply for subsequent use provides voltage after treatment through surge protection circuit, accessory power supply for subsequent use provides reference voltage for digital control part and feedback fraction, the electric current of feedback circuit sampling boosting inverter circuit output end, the control command exported with numerical control module is compared by comparator thus controls the output current of boosting inverter circuit;
Boosting inverter circuit comprises half-bridge inversion circuit, series resonant circuit, and the input of wherein said half-bridge inversion circuit is connected with the output of surge protection circuit, and the output of described half-bridge inversion circuit is connected with described series resonant circuit;
Described surge protection circuit comprises the first resistance, the second resistance, inductance and diode; the output head anode of described rectification filtering module is connected with one end of inductance, one end of the second resistance respectively; the other end of inductance is connected with the negative pole of diode; the positive pole of diode is connected with one end of the first resistance, and the other end of the first resistance is connected with the negative pole of output end of rectification filtering module, the other end of the second resistance respectively.
Surge protection circuit mainly completes the conversion of input voltage to the direct voltage of 310V of alternating current 220V, and ensures the reliable and stable work under a rational parameter of boosting inverter circuit.
Boosting inverter main circuit will complete the High voltage output of the about 200V that load needs, and feedback circuit mainly plays a protective role, and protects output current to be no more than 30mA, control the scope of output current by the size of current of sampling boosting inverter circuit.
As further prioritization scheme of the present utility model; boosting inverter circuit comprises half-bridge inversion circuit, series resonant circuit; the input of wherein said half-bridge inversion circuit is connected with the output of surge protection circuit; the output of described half-bridge inversion circuit is connected with described series resonant circuit; the direct voltage of 310V obtains high frequency square wave voltage through boosting inverter circuit; in order to ensure the device brightness of low current laser, in inversion circuit, have employed series resonance and parallel resonance technology.The boosting part that high-frequency step-up transformer and high-voltage rectifier are formed is packaged into independently element high voltage package.
Numerical portion adopts CPLD to control, and CPLD completes the logic control of the signals such as switch light, water conservation, overcurrent-overvoltage feedback on the one hand, mainly completes the output of PWM ripple on the other hand.
As further prioritization scheme of the present utility model, the chip model that auxiliary power module for subsequent use adopts is VIPer22 A, and based on the accessory power supply for subsequent use of VIPer22 A converter and Switch Power Transformer, output voltage waveforms is stable without larger spike.
As further prioritization scheme of the present utility model, also comprise filtration module, the input of described filtration module is connected with the output of described accessory power supply for subsequent use, and the output of described filtration module is connected with CPLD digital control module.
As further prioritization scheme of the present utility model, the chip model that described CPLD digital control module adopts is FLEX601.
Because control section have employed the digital control approach based on CPLD, the control impuls of lokb/s can be competent in rapid laser carving, the engraving of gradient engraving and small character can be completed well.In Laser cutting, because the duty ratio of the driving pulse of digital control module output is by the impact of outside non-control signal, can ensure at the lower stable power stage that works long hours.In laser engraving, can the power data of real-time response control system, simultaneously owing to being not linear relationship between the light power of laser and operating current, when the gradient is carved, can, by digital control part correction luminous power, it be made to ensure the requirement to the gradient in the engraving gradient with linear change.
In laser processing application, sometimes have much special processing request, as cutting initial period requires that light power is larger.Digital control approach can carry out satisfied corresponding new demand by update routine easily.
The response of this Laser Driven supply frequency is high, control is accurate and output current ripple is little, can ensure the work of laser long-term stability.
By reference to the accompanying drawings execution mode of the present utility model is explained in detail above, but the utility model is not limited to above-mentioned execution mode, in the ken that those of ordinary skill in the art possess, can also make a variety of changes under the prerequisite not departing from the utility model aim.The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, although the utility model discloses as above with preferred embodiment, but and be not used to limit the utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be do not depart from technical solutions of the utility model content, according to technical spirit of the present utility model, within spirit of the present utility model and principle, to any simple amendment that above embodiment is done, equivalent replacement and improvement etc., within the protection range all still belonging to technical solutions of the utility model.
Claims (5)
1. based on a high-power numerical control driving power for surge protection circuit, it is characterized in that: comprise filter rectifier, surge protection circuit, accessory power supply for subsequent use, numerical control module, boosting inverter circuit, feedback circuit and comparator;
Wherein, described filter rectifier, surge protection circuit, accessory power supply for subsequent use, numerical control module, boosting inverter circuit are connected successively, and described boosting inverter circuit is also connected with numerical control module by feedback module connected successively, comparator;
AC power produces direct voltage after rectification circuit after filtering, described direct voltage is respectively boosting inverter circuit and accessory power supply for subsequent use provides voltage after treatment through surge protection circuit, accessory power supply for subsequent use provides reference voltage for digital control part and feedback fraction, the electric current of feedback circuit sampling boosting inverter circuit output end, the control command exported with numerical control module is compared by comparator thus controls the output current of boosting inverter circuit;
Boosting inverter circuit comprises half-bridge inversion circuit, series resonant circuit, and the input of wherein said half-bridge inversion circuit is connected with the output of surge protection circuit, and the output of described half-bridge inversion circuit is connected with described series resonant circuit;
Described surge protection circuit comprises the first resistance, the second resistance, inductance and diode; the output head anode of described rectification filtering module is connected with one end of inductance, one end of the second resistance respectively; the other end of inductance is connected with the negative pole of diode; the positive pole of diode is connected with one end of the first resistance, and the other end of the first resistance is connected with the negative pole of output end of rectification filtering module, the other end of the second resistance respectively.
2. a kind of high-power numerical control driving power based on surge protection circuit as claimed in claim 1, is characterized in that: described numerical control module is CPLD digital control module.
3. a kind of high-power numerical control driving power based on surge protection circuit as claimed in claim 1 or 2, is characterized in that: the chip model that auxiliary power module for subsequent use adopts is VIPer22 A.
4. a kind of high-power numerical control driving power based on surge protection circuit as claimed in claim 2; it is characterized in that: also comprise filtration module; the input of described filtration module is connected with the output of described accessory power supply for subsequent use, and the output of described filtration module is connected with CPLD digital control module.
5. a kind of high-power numerical control driving power based on surge protection circuit as claimed in claim 4, is characterized in that: the chip model that described CPLD digital control module adopts is FLEX601.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520331185.4U CN204615668U (en) | 2015-05-21 | 2015-05-21 | A kind of high-power numerical control driving power based on surge protection circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520331185.4U CN204615668U (en) | 2015-05-21 | 2015-05-21 | A kind of high-power numerical control driving power based on surge protection circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104852597A (en) * | 2015-05-21 | 2015-08-19 | 中科天工电气控股有限公司 | Large-power numerical control driving power supply based on surge protective circuit |
| CN105406699A (en) * | 2015-11-26 | 2016-03-16 | 北京卫星制造厂 | Cold backup module power supply |
-
2015
- 2015-05-21 CN CN201520331185.4U patent/CN204615668U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104852597A (en) * | 2015-05-21 | 2015-08-19 | 中科天工电气控股有限公司 | Large-power numerical control driving power supply based on surge protective circuit |
| CN105406699A (en) * | 2015-11-26 | 2016-03-16 | 北京卫星制造厂 | Cold backup module power supply |
| CN105406699B (en) * | 2015-11-26 | 2018-01-05 | 北京卫星制造厂 | A kind of cold standby modular power source |
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Granted publication date: 20150902 |