CN104578890A - High-voltage pulse generation device based on digital control - Google Patents
High-voltage pulse generation device based on digital control Download PDFInfo
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- CN104578890A CN104578890A CN201510029433.4A CN201510029433A CN104578890A CN 104578890 A CN104578890 A CN 104578890A CN 201510029433 A CN201510029433 A CN 201510029433A CN 104578890 A CN104578890 A CN 104578890A
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- 239000004065 semiconductor Substances 0.000 claims abstract description 27
- 230000007704 transition Effects 0.000 claims description 15
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 230000000737 periodic effect Effects 0.000 claims description 6
- 238000007726 management method Methods 0.000 description 44
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 19
- 229910052744 lithium Inorganic materials 0.000 description 19
- 238000010891 electric arc Methods 0.000 description 14
- 238000010586 diagram Methods 0.000 description 8
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013499 data model Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The invention discloses a high-voltage pulse generation device based on digital control. The device comprises a power supply module, a digital control circuit electrically connected with the power supply module, a transformer generating high-voltage pulses under control of the digital control circuit. The digital control circuit comprises a power supply management module, a signal generating module, a driver and a semiconductor switch, the input end of the power supply management module is electrically connected with the output end of the power supply module, the power supply management module supplies power to the signal generating module, the driver and the transformer, the signal generating module, the driver and the semiconductor switch are sequentially and electrically connected, the signal generating module is used for generating drive signals, the driver is used for amplifying the drive signals so that the semiconductor switch can be turned on, and the semiconductor switch is electrically connected with the transformer. When the high-voltage pulse generation device works, noise which makes a user feel uncomfortable is not generated, and the high-voltage pulse generation device can continuously work for a long time.
Description
Technical field
The present invention relates to pulses generation field, particularly relate to a kind of based on numerically controlled high voltage pulse generator.
Background technology
The circuit diagram of current the most widely used a kind of low-power high-voltage pulse generating device as shown in Figure 1, for generation of electric arc, its circuit structure is simple, with low cost, and electric arc produces the transformer T that circuit needs a resistance R, an electric capacity C, one triode Q and band feedback coil.By simulation triode RC vibration, the direct voltage that lithium battery E exports is converted to pulse voltage, then becomes high-voltage pulse by transformer T-shaped, puncture air by high-voltage pulse, produce electric arc.
But this high voltage pulse generator operating frequency is about 10kHz ~ 15kHz, this operating frequency, within human auditory system scope, therefore can produce the high-frequency noise allowing user not feel well.On the other hand, because the pressure drop VCE between collector electrode when triode Q works and emitter is comparatively large, therefore electric energy loss is larger, triode Q generates heat serious, generally, each continuous operation of this high voltage pulse generator more than 10 seconds, otherwise can not will burn out triode Q.
Vibrated by the triode RC of simulation in prior art, the direct voltage that lithium battery exports is converted to pulse voltage, and then become high-voltage pulse by transformer T-shaped, high-voltage pulse punctures air, produces electric arc.The operating frequency of this high voltage pulse generator is about 10kHz ~ 15kHz, within human auditory system scope, therefore can produce the high-frequency noise allowing people not feel well, cause noise pollution to surrounding environment, if things go on like this can produce serious harm to the sense of hearing of user.And high voltage pulse generator of the present invention is programmed by signal generator module; produce various different drive singal; and utilize driver to amplify drive singal; then semiconductor switch is driven; semiconductor switch is connected with the primary coil of transformer T; secondary coil voltage is affected by the primary voltage of transformer T during work; then high-voltage pulse is produced at secondary coil; puncture air; produce electric arc; make high voltage pulse generator of the present invention can not produce noise within the scope of human auditory system, can not noise pollution be produced, protect the sense of hearing of user.
In order to ensure that high voltage pulse generator of the present invention punctures the noise that can not produce in the process of air and make people not feel well at generation high-voltage pulse, the drive singal that signal generator module produces makes the operating frequency of this device remain on 20 more than kHz.
The device that can be used for producing drive singal in prior art is a lot, and single-chip microcomputer is because flexible in programming, easily produces various different drive singal and is used widely.Therefore the present invention utilizes single-chip microcomputer by the frequency upgrading of signal to 20kHz, to avoid producing the noise within the scope of human auditory system.
As preferably, described power module comprises USB interface, battery powered managing module and rechargeable battery E, and described USB interface connects external power source, is that rechargeable battery E charges by battery powered managing module.
Wherein, the rechargeable battery E that market is supplied is of a great variety, and lithium battery is one of battery variety be most widely used at present, there is the advantages such as voltage platform is high, energy density is high, lightweight, select lithium battery to make this device performance more superior as supplying cell.Therefore can prioritizing selection lithium battery be circuit supply as supplying cell.
As preferably, described semiconductor switch is NMOS tube M, and the grid of described NMOS tube M is connected with driver signal output, and drain electrode is connected with the primary coil of transformer, source ground.
Under the conduction voltage drop of NMOS tube, conducting resistance is little, and raster data model does not need electric current, and loss is little, and drive circuit is simple.Utilize NMOS tube as switching tube, energy loss can be reduced, reduce heating, make high voltage pulse generator more energy-conservation.
Although but NMOS tube performance is good, consume energy low, its price is higher, and relative to energy consumption, the cost of what certain user more focused on is device.Now, triode can be selected as semiconductor switch, and be connected with driver signal output by transistor base, collector electrode is connected with transformer.
As preferably, described power supply management module comprises the first power supply management module and the second power supply management module, and described first power supply management module is the power supply of signal generator module coupling, and described second power supply management module is the power supply of driver coupling.Transformer T is then directly powered by rechargeable battery.At the secondary generation high-voltage pulse of transformer T during work, puncture air, produce electric arc.
To arrange the first power supply management module and the second power supply management module be respectively that signal generator module powers with driver is because signal generator module is different with the rated operational voltage of driver, to need the voltage transitions of rechargeable battery to different values again for their are powered.Therefore the present invention arranges the first power supply management module and the second power supply management module, their power supplies are respectively again, to make signal generator module and driver in optimum Working work after the voltage of rechargeable battery being converted to respectively the rated operational voltage of signal generator module and driver.
As preferably, described drive singal is periodic drive signal, and described periodic drive signal successively comprises several drive singal being not less than 20kHz and several are not more than the drive singal of 7kHz in each cycle.
Now transformer T is directly powered by rechargeable battery, and device is comparatively simple, reduces production cost.But in this case, if drive singal remains on more than 20kHz always, if electric arc surprisingly extinguishes, electric arc can not resume combustion.Therefore this device produces after several are not less than the drive singal of 20kHz, produce the drive singal that several frequencies are not more than 7kHz, the drive singal that these two frequencies are lower makes that the primary coil of transformer T ON time in a switch periods is elongated, storage power increases, therefore can reliably produce high-voltage pulse and puncture air, make device can produce electric arc always.
And persist effect according to human vision, in order to make people can not discover arc extinction mistake, the time that the interior generation of each cycle is not less than the drive singal of 20kHz is not more than 0.1s.
When the number of the drive singal being not more than 7kHz is two, the electric arc of generation can be made to be particularly suitable for actual needs, resume combustion best results.Certainly its number is one, three or other is also passable, and the present invention does not do unique restriction, but when its number is one, can make stored energy deficiency, when its number is three or more, ON time can be made relatively long.
As preferably, described power supply management module also comprises the 3rd power supply management module, and described 3rd power supply management module is that transformer T mates power supply.
Further, described drive singal is the drive singal of single-frequency, and described frequency is not less than 20kHz.
Be transformer T primary supplies after now utilizing the 3rd power supply management module to be promoted by cell voltage.In this mode of operation, signal generator module only need provide the single-frequency drive singal of more than 20kHz, just can produce good electric arc, and electric arc can not extinguish, and also can not produce any noise.
As preferably, described first power supply management module is that the power supply of signal generator module coupling is specially: when the voltage of rechargeable battery E is the rated operational voltage of signal generator module, by rechargeable battery E directly for signal generator module is powered, when the voltage of rechargeable battery E does not conform to the voltage of signal generator module, by after the voltage transitions of rechargeable battery E to the rated operational voltage of signal generator module for signal generator module is powered; Described second power supply management module be driver coupling power supply be specially: by after the voltage transitions of rechargeable battery E to the rated operational voltage of driver for driver is powered; Described 3rd power supply management module is that the power supply of transformer coupling is specially: will be transformer-supplied after the voltage transitions of rechargeable battery E.
Particularly, the first power supply management module described in the present invention, the second power supply management module and the 3rd power supply management module utilize dc-dc to carry out voltage transitions.
Certainly, other voltage conversion device also can be utilized rechargeable battery voltage transitions, such as charge pump, and the present invention does not do unique restriction.
Beneficial effect of the present invention: utilize signal generator module to programme and produce various different drive singal, improve the operating frequency of high voltage pulse generator to more than 20kHz, operationally can not produce the noise within the scope of human auditory system, can not noise pollution be produced, protect the sense of hearing of user; And high voltage pulse generator energy of the present invention continuous operation, produces electric arc always.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides and a kind ofly user can not be allowed when producing electric arc not feel well the high voltage pulse generator of noise, the technical scheme of employing is as follows:
A kind of based on numerically controlled high voltage pulse generator, comprise power module, the digital control circuit be electrically connected with power module and produce the transformer T of high-voltage pulse under digital control circuit controls, described digital control circuit comprises power supply management module, signal generator module, driver and semiconductor switch, described power supply management module input is electrically connected with power module outlet, described power supply management module is respectively signal generator module, driver and transformer T power, and signal generator module, driver and semiconductor switch are electrically connected successively, wherein, described signal generator module is for generation of drive singal, driver is for amplifying drive singal, thus unlatching semiconductor switch, described semiconductor switch is electrically connected with transformer T.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of existing high voltage pulse generator;
Fig. 2 is circuit diagram of the present invention;
Fig. 3 is the circuit diagram one of the embodiment of the present invention 1;
Fig. 4 is the circuit diagram two of the embodiment of the present invention 1;
Fig. 5 is the drive singal schematic diagram that in the embodiment of the present invention 1, single-chip microcomputer produces;
Fig. 6 is the circuit diagram one of the embodiment of the present invention 3;
Fig. 7 is the circuit diagram two of the embodiment of the present invention 3.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
Embodiment 1:
As shown in Figure 2:
A kind of based on numerically controlled high voltage pulse generator, comprise power module 7, the digital control circuit be electrically connected with power module 7 and produce the transformer T of high-voltage pulse under digital control circuit controls, described digital control circuit comprises power supply management module 3, signal generator module 4, driver 5 and semiconductor switch 6, the input of described power supply management module 3 is electrically connected with the output of power module 7, described power supply management module 3 is respectively signal generator module 4, driver 5 and transformer T power, and signal generator module 4, driver 5 and semiconductor switch 6 are electrically connected successively, wherein, described signal generator module 4 is for generation of drive singal, driver 5 is for amplifying drive singal, thus open semiconductor switch 6, described semiconductor switch 6 is electrically connected with transformer T.
In the present embodiment, described drive singal makes the operating frequency of this device be 20kHz.
As shown in Figure 3 and Figure 4, signal generator module 4 described in the present embodiment is single-chip microcomputer 41; Described power module 7 comprises usb 1, battery charging management module 2 and lithium battery E, and the supply power voltage of lithium battery E is 3.7V, and described usb 1 is charged for lithium battery E by battery charging management module 2; Described semiconductor switch 6 is NMOS tube M, and the grid of described NMOS tube M is connected with driver signal output, and drain electrode is connected with transformer, source ground.Described power supply management module 3 comprises the first power supply management module 31 and the second power supply management module 32, described first power supply management module 31 is that signal generator module 4 mates power supply, be specially: when the rated operational voltage of signal generator module 4 is 3.7 volts, directly powered for signal generator module 4 by lithium battery E, when the rated operational voltage of signal generator module 4 is 5.0V, booster type dc-dc 311 is utilized to power after lithium battery E voltage transitions to 5.0V for signal generator module 4 again; Described second power supply management module 32 is that driver 5 mates power supply, is specially: utilize booster type dc-dc 322 voltage transitions of lithium battery E to be powered for driver 5 to the rated operational voltage 8.0V of driver 5; Transformer T is then directly powered by lithium battery E.
As shown in Figure 5, drive singal described in the present embodiment is periodic drive signal, and each cycle successively comprises the drive singal of 2000 20kHz and the drive singal of two frequency 5kHz.
Embodiment 2:
Except described drive singal is periodic drive signal, each cycle successively comprises outside the drive singal of 2000 20kHz and the drive singal of two frequency 7kHz, and other is identical with embodiment 1.
Embodiment 3:
As shown in Figure 2:
A kind of based on numerically controlled high voltage pulse generator, comprise power module 7, the digital control circuit be electrically connected with power module 7 and produce the transformer T of high-voltage pulse under digital control circuit controls, described digital control circuit comprises power supply management module 3, signal generator module 4, driver 5 and semiconductor switch 6, the input of described power supply management module 3 is electrically connected with the output of power module 7, described power supply management module 3 is respectively signal generator module 4, driver 5 and transformer T power, and signal generator module 4, driver 5 and semiconductor switch 6 are electrically connected successively, wherein, described signal generator module 4 is for generation of drive singal, driver 5 is for amplifying drive singal, thus open semiconductor switch 6, described semiconductor switch 6 is electrically connected with transformer T.
As shown in Figure 6 and Figure 7, signal generator module described in the present embodiment is single-chip microcomputer 41, and utilize single-chip microcomputer 41 to produce the single-frequency drive singal of 20kHz, the operating frequency making high voltage pulse generator is 20kHz, avoids producing the noise within the scope of human auditory system; Described power module 7 comprises usb 1, battery charging management module 2 and lithium battery E, and the supply power voltage of lithium battery E is 3.7V, and described usb 1 is charged for lithium battery E by battery charging management module 2; Described semiconductor switch 6 is NMOS tube M, and the grid of described NMOS tube M is connected with driver 5 signal output part, and drain electrode is connected with transformer T primary coil, source ground; Described power supply management module 3 comprises the first power supply management module 31, second power supply management module 32 and the 3rd power supply management module 33, described first power supply management module 31 is the power supply of signal generator module coupling, be specially: when the rated operational voltage of signal generator module is 3.7 volts, directly powered for signal generator module 4 by lithium battery E, when the rated operational voltage of signal generator module 4 is 5.0V, booster type dc-dc 311 is utilized to power after the voltage transitions of lithium battery E to 5.0V for signal generator module 4 again; Described second power supply management module 32 is that driver 5 mates power supply, is specially: utilize booster type dc-dc 322 voltage transitions of lithium battery E to be powered for driver 5 to the rated operational voltage 8.0V of driver 5; Described 3rd power supply management module 33 be transformer T mate power supply, be specially: utilize booster type dc-dc 333 by after the voltage transitions of lithium battery E to 15.0V for transformer T powers.
Claims (10)
1. one kind based on numerically controlled high voltage pulse generator, comprise power module, the digital control circuit be electrically connected with power module and produce the transformer of high-voltage pulse under digital control circuit controls, it is characterized in that, described digital control circuit comprises power supply management module, signal generator module, driver and semiconductor switch, described power supply management module input is electrically connected with power module outlet, described power supply management module is respectively signal generator module, driver and transformer-supplied, and signal generator module, driver and semiconductor switch are electrically connected successively, wherein, described signal generator module is for generation of drive singal, driver is for amplifying drive singal, thus unlatching semiconductor switch, described semiconductor switch is electrically connected with transformer.
2. one according to claim 1 is based on numerically controlled high voltage pulse generator, it is characterized in that, described drive singal makes the operating frequency of this device be not less than 20kHz.
3. one according to claim 2 is based on numerically controlled high voltage pulse generator, it is characterized in that, described power module comprises USB interface, battery charging management module and rechargeable battery, described USB interface connects external power source, and is rechargeable battery charging by battery powered managing module.
4. one according to claim 2 is based on numerically controlled high voltage pulse generator, it is characterized in that, described semiconductor switch is NMOS tube, and the grid of described NMOS tube is connected with driver signal output, drain electrode is connected with the primary coil of transformer, source ground.
5. one according to claim 2 is based on numerically controlled high voltage pulse generator, it is characterized in that, described power supply management module comprises the first power supply management module and the second power supply management module, described first power supply management module is the power supply of signal generator module coupling, and described second power supply management module is the power supply of driver coupling.
6. one according to claim 5 is based on numerically controlled high voltage pulse generator, it is characterized in that, described drive singal is periodic drive signal, and described periodic drive signal successively comprises several drive singal being not less than 20kHz and several are not more than the drive singal of 7kHz in each cycle.
7. one according to claim 5 is based on numerically controlled high voltage pulse generator, it is characterized in that, described power supply management module also comprises the 3rd power supply management module, and described 3rd power supply management module is the power supply of transformer coupling.
8. one according to claim 7 is based on numerically controlled high voltage pulse generator, it is characterized in that, described drive singal is the drive singal of single-frequency, and described frequency is not less than 20kHz.
9. one according to claim 8 is based on numerically controlled high voltage pulse generator, it is characterized in that, described first power supply management module utilizes rechargeable battery directly to power for signal generator module, or by after rechargeable battery voltage transitions to the rated operational voltage of signal generator module for signal generator module is powered; Described second power supply management module by after rechargeable battery voltage transitions to the rated operational voltage of driver for driver is powered; Described 3rd power supply management module will be transformer-supplied after rechargeable battery voltage transitions.
10. one according to claim 9 is based on numerically controlled high voltage pulse generator, it is characterized in that, described first power supply management module, the second power supply management module and the 3rd power supply management module utilize dc-dc to carry out voltage transitions.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510029433.4A CN104578890A (en) | 2015-01-21 | 2015-01-21 | High-voltage pulse generation device based on digital control |
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| CN201510029433.4A CN104578890A (en) | 2015-01-21 | 2015-01-21 | High-voltage pulse generation device based on digital control |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201066798Y (en) * | 2007-04-25 | 2008-05-28 | 郑德明 | An impulse energy constant charging device |
| CN101459352A (en) * | 2008-12-25 | 2009-06-17 | 中国海洋石油总公司 | High density electric energy transmission device |
| CN203562978U (en) * | 2013-10-28 | 2014-04-23 | 重庆大学 | Transformer oil purifier based on high-voltage pulse superposition direct-current electric field generation technology |
| CN103858853A (en) * | 2014-03-18 | 2014-06-18 | 河南科技学院 | Device for eliminating crop soil insects by physical electric field |
-
2015
- 2015-01-21 CN CN201510029433.4A patent/CN104578890A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201066798Y (en) * | 2007-04-25 | 2008-05-28 | 郑德明 | An impulse energy constant charging device |
| CN101459352A (en) * | 2008-12-25 | 2009-06-17 | 中国海洋石油总公司 | High density electric energy transmission device |
| CN203562978U (en) * | 2013-10-28 | 2014-04-23 | 重庆大学 | Transformer oil purifier based on high-voltage pulse superposition direct-current electric field generation technology |
| CN103858853A (en) * | 2014-03-18 | 2014-06-18 | 河南科技学院 | Device for eliminating crop soil insects by physical electric field |
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Application publication date: 20150429 |