CN2671223Y - Laser impulse power supply without main transformer - Google Patents
Laser impulse power supply without main transformer Download PDFInfo
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- CN2671223Y CN2671223Y CN 200320123289 CN200320123289U CN2671223Y CN 2671223 Y CN2671223 Y CN 2671223Y CN 200320123289 CN200320123289 CN 200320123289 CN 200320123289 U CN200320123289 U CN 200320123289U CN 2671223 Y CN2671223 Y CN 2671223Y
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Abstract
The model utility discloses a laser impulse power supply without main transformer, comprising a rectifying diode (4) and an energy storage capacitor (6) which are electrically connected with an alternating current supply (1). In particular, the positive end of the rectifying diode (4) is electrically connected with one end of the energy storage capacitor (6) and one end of the alternating current supply (1), and the negative end of the rectifying diode (4) is electrically connected with the other end of the alternating current supply (1) through a capacitor (3). A controlled silicon (5) is connected in series between the negative end of the rectifying diode (4) and the other end of the energy storage capacitor (6). A pulse trigger (2) is crossed between the both ends of the alternating current supply (1), and the output end of the pulse trigger (2) is electrically connected with the gate electrode of the controlled silicon (5) to make the controlled silicon (5) be conducted at the maximum valve of the negative half circle of the alternating current supply (1). The utility model has simple structure, small volume and strong shock resistance ability; the utility model can adjust the charging voltage of the alternating current supply within the 0-2**times of the supply voltage and can be used as the pulse power source of a solid laser.
Description
Technical field the utility model relates to a kind of pulse power, especially dereliction transformer type laser pulse power supply.
Background technology is present, and people are the pulse-triggered power supplys that use in various forms of solid state lasers more, and as commercially available, it mainly is made of the transformer that is electrically connected, rectifier diode, inductor, energy storage capacitor etc.During work, utilize transformer that the power frequency ac voltage of 50Hz is boosted and the isolation of realization and electrical network, rectifier diode is transformed into direct current with ac high-voltage, is sent to energy storage capacitor again after the inductor current limliting.But, Industrial Frequency Transformer heaviness, costliness when this pulse-triggered power supply exists high-power output, and the not high deficiency of efficient.For addressing this problem, have and utilize the directly technical scheme of resonant charging again behind bridge rectifier of three phase network voltage, but have the upper limit of discharge voltage to be subjected to strict restriction, promptly only be about the shortcoming of 900V; Also have and directly line voltage is carried out the phase place Regulation Control with controllable silicon earlier, promote the voltage of phase modulation with the voltage multiplying rectifier mode again, so that it reaches the scheme of the charging voltage upper limit,, this kind scheme is bigger to impact, the interference of electrical network, and the discharge frequency of energy storage capacitor again must with the 50Hz Frequency Synchronization of electrical network, make it be difficult to replace existing triggering power supply.
The summary of the invention the technical problems to be solved in the utility model provides dereliction transformer type laser pulse power supply a kind of simple in structure, practical, easy to use for overcoming weak point of the prior art.
The technical scheme that is adopted comprises rectifier diode and the energy storage capacitor that is electrically connected with AC power, an end of the anode of said rectifier diode and said energy storage capacitor particularly, and an end of said AC power is electrically connected, the negative terminal of said rectifier diode is connected through capacitor electrode with the other end of said AC power, be serially connected with controllable silicon between the negative terminal of said rectifier diode and the other end of said energy storage capacitor, the two ends span of said AC power is connected to pulse trigger, the output of said pulse trigger is electrically connected with said silicon controlled gate pole, so that controllable silicon conducting when AC power negative half period maximum.
Further improvement as technical scheme, described pulse trigger is by the alternating voltage sampled part of electricity serial connection successively, frequency division parts and time delay part constitute, said alternating voltage sampled part is made up of voltage divider and half-wave shaping circuit, wherein, by resistance R 1, the two ends cross-over connection of the voltage divider that R2 composes in series is on AC power, with by resistance R 1, the contact place of R2 obtains the alternating voltage signal of AC power, by diode D1, the base stage of resistance R 3 and triode BG1 is connected in series mutually and constitutes the half-wave shaping circuit, be used for the alternating voltage conversion of signals of voltage divider output is become square-wave signal, said frequency division parts are the CD4520 integrated package, wherein, 1. the input pin of CD4520 integrated package connects the output of alternating voltage sampled part, 3.～6. pin is output, pin meets VCC, pin is ground connection 8., be used to set charge frequency with respect to ac power frequency, said time delay part is by CD4538 integrated package and variable resistor RW1, capacitor C 1 is formed, wherein, 4. the input pin of CD4538 integrated package connects the output of frequency division parts, 10. pin is output, 1. with between VCC pin is connected in series capacitor C 1 and variable resistor RW1,2. pin joins with the contact of capacitor C 1 and variable resistor RW1, pin meets VCC, pin is ground connection 8., delay time when being used for determining with respect to AC power output zero crossing, and when this delay time arrives the output width greater than the trigger impulse between the zero-sum AC power half period; 1. and be serially connected with the amplifier that is made of triode BG2 and resistance R 5 between the output of alternating voltage sampled part the input pin of the CD4520 integrated package of described frequency division parts; 10. the output pin of CD45 38 integrated packages of described time delay part connects amplifier; But be serially connected with stopcock between the contact of described capacitor and rectifier diode negative terminal and the controllable silicon, the two ends cross-over connection of energy storage capacitor has charging voltage controller, but the control end of the said stopcock of output termination of said charging voltage controller; But described stopcock is a high-power MOSFET tube; Described charging voltage controller is that the input of comparison circuit is electrically connected with sample circuit and voltage setting device, output is serially connected with amplifying circuit and buffer circuit, the input cross-over connection of said sample circuit is in the two ends of energy storage capacitor, but the output of said buffer circuit is electrically connected with the control end of stopcock.
Beneficial effect with respect to prior art is, one, owing to be to utilize reasonable stage that the alternate of AC power rises and falls as the dull charge power supply that rises continuously of a voltage, and the energy of AC power has directly been injected energy storage capacitor, so linear continuously charging module that rises of its similar voltage, both save heavy transformer, make that it is simple in structure, volume is little, low cost of manufacture, practical again, the characteristics that also have strong shock resistance particularly are applicable to the xenon lamp pulsed discharge of solid state laser; Its two, but the shutoff by the control stopcock constantly, can carry out effectively and accurately control the charging voltage of energy storage capacitor, makes that it can be in AC supply voltage
Regulate arbitrarily doubly, if AC power is 220V or 380V, the crest voltage that then charges can reach 620V or 1074V, this is enough to satisfy considerable YAG pulse laser to the demand of excitation power source, simultaneously, charging error and magnitude of a voltage fluctuation are all very little, through actual measurement that 7 charging voltage values setting are divided into groups, survey 10 times for every group, its result is: the charging error as the difference of setting voltage and actual charging voltage mean value only is-0.3～0.3v, and the charging voltage fluctuation of calculating by the variance of every group of data statistics also only is 0.77～1.35V; Its three, power supply grid is not had any impact and interference, and can in the frequency of AC power, do to adjust arbitrarily the charge frequency of energy storage capacitor.
Description of drawings is described in further detail optimal way of the present utility model below in conjunction with accompanying drawing.
Fig. 1 is a kind of embodiment circuit structure diagram of the present utility model;
Fig. 2 is the circuit theory diagrams of the pulse trigger among Fig. 1;
Fig. 3 is the utility model charging trigger impulse sequential chart, wherein, a figure is the alternating voltage waveform of AC power, b figure is the waveform after the alternating voltage sampled part sampling shaping in the pulse trigger, c figure is the waveform behind the frequency division parts frequency division in the pulse trigger, charge frequency is herein elected 12.5Hz as, and d figure is the waveform after the time delay part in the pulse trigger is delayed time, and e figure is the charge waveforms of energy storage capacitor; Ordinate among the figure is voltage, and abscissa is the time.
Embodiment is referring to Fig. 1, one end of AC power 1, pulse trigger 2, energy storage capacitor 6 all is electrically connected with the anode of rectifier diode 4, the other end of AC power 1 and pulse trigger 2 is electrically connected through the negative terminal of capacitor 3 with rectifier diode 4, but be serially connected with stopcock 7 and controllable silicon 5 between the other end of the negative terminal of rectifier diode 4 and energy storage capacitor 6 successively, the two ends cross-over connection of energy storage capacitor 6 has charging voltage controller 8; Wherein, the gate pole of controllable silicon 5 is electrically connected with the output of pulse trigger 2, but the control end of the output termination stopcock 7 of charging voltage controller 8.But aforesaid stopcock 7 is selected high-power MOSFET tube for use; Charging voltage controller 8 is for the input of comparison circuit is electrically connected with sample circuit and voltage setting device, output is serially connected with amplifying circuit and buffer circuit, wherein, the input cross-over connection of sample circuit is in the two ends of energy storage capacitor 6, but the output of buffer circuit is electrically connected with the control end of stopcock 7.
Referring to Fig. 2, pulse trigger 2 is by alternating voltage sampled part 21, frequency division parts 22 and the time delay part 23 etc. of electricity serial connection constitute successively.Wherein:
Alternating voltage sampled part 21 is made up of voltage divider and half-wave shaping circuit; Wherein, the two ends cross-over connection of the voltage divider that is composed in series by resistance R 1, R2 is on AC power 1, be connected in series mutually by the base stage of diode D1, resistance R 3 and triode BG1 and constitute the half-wave shaping circuit, the alternating voltage conversion of signals that is used for AC power 1 that the contact place by resistance R 1, R2 is obtained becomes square-wave signal.
For making square-wave signal enough strong, at the output of half-wave shaping circuit, promptly the contact place of the collector electrode of triode BG1 and resistance R 4 is serially connected with cross-over connection amplifier between power supply VCC and ground, that be made of triode BG2 and resistance R 5.
Frequency division parts 22 are the CD4520 integrated package; Wherein, 3.～6. output, pin that 1. the input pin of CD4520 integrated package connects aforementioned amplifier connect 8. ground connection of VCC, pin for output, pin , are used to set the charge frequency with respect to AC power 1 frequency; The charge frequency of She Dinging can be elected 3.0625Hz or 6.125Hz or 12.5Hz or 25Hz respectively as herein.
Time delay part 23 is made up of CD4538 integrated package and variable resistor RW1, capacitor C 1, wherein, 1. with between VCC 10. the output, pin that 4. the input pin of CD4538 integrated package connects frequency division parts 22 be connected in series that 2. capacitor C 1 and variable resistor RW1, pin join with the contact of capacitor C 1 and variable resistor RW1, pin connects 8. ground connection of VCC, pin for output, pin, delay time when being used for determining with respect to AC power 1 output zero crossing, and when this delay time arrives the output width greater than the trigger impulse of zero-sum AC power between 1 half period; Herein, selecting the parameter of variable resistor RW1 and capacitor C 1 is the time trigger that trigger impulse is being set.
10. and be serially connected with amplifier 24 between the gate pole of controllable silicon 5 for promoting the promotion power of trigger impulse, at the output of time delay part 23, promptly the pin of CD4538 integrated package.
Now get AC power 1 for the civil power 220V of power frequency 50Hz (seeing a figure among Fig. 3), when charge frequency is elected 12.5Hz as, the course of work of the present utility model is described: when civil power 220V zero crossing, alternating voltage sampled part in the pulse trigger 2 is sent to time delay part 23 with this crossover point signal through frequency division parts 22, so that by its trigger.When the negative half period of civil power 220V arrived, this negative half period voltage to capacitor 3 chargings, when 1/4 alternating cycles of this AC power 1, made the voltage that is filled on the capacitor 3 be by rectifier diode 4
The voltage divider of the alternating voltage sampled part in the pulse trigger 2 is taken a sample to negative half-cycle signal, and it is shaped to square wave (see among Fig. 3 b figure) by the half-wave shaping circuit, after the amplifier that constitutes via triode BG2 and resistance R 5 amplifies again, enter frequency division parts 22, be sent to time delay part 23 after the power frequency of 50Hz being transformed into the charge frequency (see among Fig. 3 c figure) of 12.5Hz by frequency division parts 22, be the trigger impulse (see d figure in Fig. 3) of the half period of AC power 1 to amplifier 24 output width by time delay part 23 when 1/4 alternating cycles of AC power 1 again, this trigger impulse is sent to the gate pole of controllable silicon 5 after amplifier 24 amplifies.Controllable silicon 5 conducting when the peak value of AC power 1 negative half period is with the voltage of half period of the rising of AC power 1, promptly
Be charged to energy storage capacitor 6 (seeing the e figure among Fig. 3).If the voltage that is filled on the energy storage capacitor 6 only is required to be a certain magnitude of voltage between 0～622V, then this magnitude of voltage can be inputed in the voltage setting device of charging voltage controller 8, when the voltage that is filled on the energy storage capacitor 6 reaches this magnitude of voltage, but stopcock 7 has just automatically cut off the charge circuit of controllable silicon 5 under the control of charging voltage controller 8.Afterwards, the xenon lamp of being finished solid state laser by other functional parts again carries out pulsed discharge.
Obviously, those skilled in the art can carry out various changes and modification to dereliction transformer type laser pulse power supply of the present utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.
Claims (7)
1, a kind of dereliction transformer type laser pulse power supply, comprise the rectifier diode (4) and the energy storage capacitor (6) that are electrically connected with AC power (1), it is characterized in that the anode of said rectifier diode (4) and an end of said energy storage capacitor (6), and an end of said AC power (1) is electrically connected, the negative terminal of said rectifier diode (4) is electrically connected through capacitor (3) with the other end of said AC power (1), be serially connected with controllable silicon (5) between the other end of the negative terminal of said rectifier diode (4) and said energy storage capacitor (6), the two ends span of said AC power (1) is connected to pulse trigger (2), the output of said pulse trigger (2) is electrically connected with the gate pole of said controllable silicon (5), so that controllable silicon (5) conducting when AC power (1) negative half period maximum.
2, dereliction transformer type laser pulse power supply according to claim 1 is characterized in that pulse trigger (2) is by alternating voltage sampled part (21), frequency division parts (22) and the time delay part (23) of electricity serial connection constitute successively; Said alternating voltage sampled part (21) is made up of voltage divider and half-wave shaping circuit, wherein, the two ends cross-over connection of the voltage divider that is composed in series by resistance R 1, R2 is on AC power (1), obtain the alternating voltage signal of AC power (1) with contact place by resistance R 1, R2, be connected in series mutually by the base stage of diode D1, resistance R 3 and triode BG1 and constitute the half-wave shaping circuit, be used for the alternating voltage conversion of signals of voltage divider output is become square-wave signal; Said frequency division parts (22) are the CD4520 integrated package, wherein, 3.～6. output, pin that 1. the input pin of CD4520 integrated package connects alternating voltage sampled part (21) connect 8. ground connection of VCC, pin for output, pin , are used for setting the charge frequency with respect to AC power (1) frequency; Said time delay part (23) is made up of CD4538 integrated package and variable resistor RW1, capacitor C 1, wherein, 1. with between VCC the output, pin that 4. the input pin of CD4538 integrated package connects frequency division parts (22) 10. be connected in series that 2. capacitor C 1 and variable resistor RW1, pin join with the contact of capacitor C 1 and variable resistor RW1, pin connects 8. ground connection of VCC, pin for output, pin, delay time when being used for determining with respect to AC power (1) output zero crossing, and when this delay time arrives the output width greater than the trigger impulse of zero-sum AC power between (1) half period.
3, dereliction transformer type laser pulse power supply according to claim 2, it is characterized in that frequency division parts (22) the CD4520 integrated package the input pin 1. and be serially connected with the amplifier that constitutes by triode BG2 and resistance R 5 between the output of alternating voltage sampled part (21).
4, dereliction transformer type laser pulse power supply according to claim 2 is characterized in that the output pin of the CD4538 integrated package of time delay part (23) 10. connects amplifier (24).
5, dereliction transformer type laser pulse power supply according to claim 1, it is characterized in that the contact of capacitor (3) and rectifier diode (4) negative terminal and controllable silicon (5) but between be serially connected with stopcock (7), the two ends cross-over connection of energy storage capacitor (6) has charging voltage controller (8), said charging voltage controller (8) but the control end of the said stopcock of output termination (7).
6, dereliction transformer type laser pulse power supply according to claim 5, but it is characterized in that stopcock (7) is a high-power MOSFET tube.
7, dereliction transformer type laser pulse power supply according to claim 5, it is characterized in that charging voltage controller (8) is for the input of comparison circuit is electrically connected with sample circuit and voltage setting device, output is serially connected with amplifying circuit and buffer circuit, the input cross-over connection of said sample circuit is in the two ends of energy storage capacitor (6), but the output of said buffer circuit is electrically connected with the control end of stopcock (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320123289 CN2671223Y (en) | 2003-12-23 | 2003-12-23 | Laser impulse power supply without main transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320123289 CN2671223Y (en) | 2003-12-23 | 2003-12-23 | Laser impulse power supply without main transformer |
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| Publication Number | Publication Date |
|---|---|
| CN2671223Y true CN2671223Y (en) | 2005-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320123289 Expired - Fee Related CN2671223Y (en) | 2003-12-23 | 2003-12-23 | Laser impulse power supply without main transformer |
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| CN (1) | CN2671223Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100413198C (en) * | 2003-12-23 | 2008-08-20 | 中国科学院安徽光学精密机械研究所 | Non-master transformer type laser pulse power supply and operating method thereof |
| CN103441418A (en) * | 2013-09-04 | 2013-12-11 | 北京无线电计量测试研究所 | Intensive-laser-system device capable of resisting high-voltage electric-discharge interferences |
| CN111607891A (en) * | 2019-02-25 | 2020-09-01 | 美名格－艾罗有限公司 | Method and system for monitoring production of knitting machine with multiple thread feeders |
-
2003
- 2003-12-23 CN CN 200320123289 patent/CN2671223Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100413198C (en) * | 2003-12-23 | 2008-08-20 | 中国科学院安徽光学精密机械研究所 | Non-master transformer type laser pulse power supply and operating method thereof |
| CN103441418A (en) * | 2013-09-04 | 2013-12-11 | 北京无线电计量测试研究所 | Intensive-laser-system device capable of resisting high-voltage electric-discharge interferences |
| CN103441418B (en) * | 2013-09-04 | 2016-02-10 | 北京无线电计量测试研究所 | The anti-electrion countermeasure set of strong laser system |
| CN111607891A (en) * | 2019-02-25 | 2020-09-01 | 美名格－艾罗有限公司 | Method and system for monitoring production of knitting machine with multiple thread feeders |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |