CN201204379Y - Integrated controller for semiconductor pump laser - Google Patents
Integrated controller for semiconductor pump laser Download PDFInfo
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- CN201204379Y CN201204379Y CNU2008200673497U CN200820067349U CN201204379Y CN 201204379 Y CN201204379 Y CN 201204379Y CN U2008200673497 U CNU2008200673497 U CN U2008200673497U CN 200820067349 U CN200820067349 U CN 200820067349U CN 201204379 Y CN201204379 Y CN 201204379Y
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Abstract
An integration controller for a semiconductor pump laser comprises a PFC circuit for transforming AC to be stable high tension direct current; a DC/DC circuit for transforming high tension direct current of PFC circuit to be stable DC output; a RF power amplifier for outputting pulse signal; a output monitoring and modulating circuit for monitoring output electric voltage/electric current of PFC circuit, controlling output electric voltage/electric current of DC/DC circuit, monitoring pulse waveform and frequency of RF power amplifier circuit and modulating pulse waveform and frequency; and a auxiliary power supply for the circuits. The device of the utility model integrates a Q switch driving power and a LED module driving power, has over -voltage protection, under-voltage protection, output over -voltage protection, output under-voltage protection, over current protection, over temperature protection, short circuit protection, lightning protection, soft starting protection and reverse connection protection, effectively enhances reliability of the power supply and the laser, and prevents laser from losing control in abnormal state.
Description
Technical field
The utility model relates to a kind of semiconductor pump laser integrated controller.
Background technology
Laser-gathering cavity, driving power, Q switching, led module are the cores of semiconductor pump laser.Because led module as light source, adopts outsourcing, LED driving power and Q switching driving power are again the most important things.China is subjected to the abroad restriction of import again, thereby develops starting late of all solid state laser because semi-conductor industry is backward relatively more abroad, also is in laboratory level.One of them main cause is that driving power and foreign technology level disparity are bigger, and is bigger with external gap in this one side of pumped at end face of semiconductor solid state laser driving power especially, is blank out basically.The Q switching driving power of existing homemade semiconductor laser, the driving power of led module is used common industry control Switching Power Supply, does not have professional power supply product and sells.The Q switching driving power of import costs an arm and a leg, and the LED driving power does not match with industry main flow Control Software interface yet.
The power supply of the conventional Industry Control accessory power supply transformation of the way can not satisfy the specific (special) requirements of Laser Drive fully.Do not possess the numerical control function, can't realize automatic control, and the expensive led module of infringement easily during manual adjustments.EMC, the reliability index of power supply are not good enough, and the precision of voltage regulation of power supply is not high yet, has influenced the uniting and adjustment effect, often cause the unsettled misleading of laser, and the research and the industrialization of laser itself do not played supporting role.
Summary of the invention
The purpose of this utility model is to provide a kind of and is designed to the semiconductor pump laser integrated controller that the pumped at end face of semiconductor laser provides special-purpose driving power with LED driving power and Q switching driving power are integrated.
The technical solution of the utility model is: comprise a pfc circuit that alternating current is transformed into stable high voltage direct current; High voltage direct current with pfc circuit is transformed to the DC/DC circuit of galvanic current output; The RF power amplifier of an output pulse signal; That output voltage to pfc circuit is monitored and according to monitoring result the output voltage of DC/DC circuit is controlled, to the waveform of the pulse of RF power amplifier and frequency monitoring and the output monitoring modulation circuit modulated according to the waveform and the frequency of monitoring result paired pulses; An accessory power supply of giving pfc circuit, DC/DC circuit, RF power amplifier and the power supply of output monitoring modulation circuit.
The utility model is with Q switching driving power, the integrated design of led module driving power, for corresponding basis is laid in the industrialization of China's semiconductor pump laser and driving power, fully take into account the needs of laser process equipment unit, product can supporting domestic all equal-wattage grades laser process equipment, can be widely used in scientific research field, manufacture field, medical field, demonstration field etc., have very high market value.Fill up because domestic temporary nothing satisfies the LED in the supporting market of semiconductor pump laser and the market vacancy that Q switching drives the integrated laser power supply.
The utility model is incorporated into Laser Power Devices with the communication power supply technology, and in the design of rectification module: adopt active power factor to correct (APFC) technology, power factor (PF) reaches 0.98.Adopt the most reliable two-transistor forward converter technology in the communication technology, the high reliability when guaranteeing Laser Power Devices work; Ultralow pressure synchronous rectification VS regulex technology: comparative study ultralow pressure synchronous rectification and regulex technology, selection meet the topological structure of the efficient requirement of end-pumped laser driving power; To adopt the communication power supply technology, according to international standard, on the EMC index request, more competitive than external like product; Possess input overvoltage/undervoltage protection, the protection of output overvoltage/undervoltage, overcurrent protection, overheat protector, short-circuit protection, anti-lightning strike, soft start, protection such as anti-reverse, effectively improve the reliability of power supply and laser, laser phenomenon out of control when preventing abnormality.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is a functions of modules block diagram of the present utility model.
Fig. 2 is the utility model pfc circuit block diagram.
Fig. 3 is the utility model DC/DC circuit part block diagram.
Embodiment
Among Fig. 1, comprise a pfc circuit 1 that alternating current is become stable high voltage direct current; High voltage direct current with pfc circuit 1 is transformed to the DC/DC circuit 2 of galvanic current output; The RF power amplifier 3 of an output pulse signal, RF power amplifier 3 comprise frequency mixer, RF electrons decay switch, power amplification, standing-wave ratio monitoring etc.; That output voltage to pfc circuit 1 is monitored and according to monitoring result the output voltage of DC/DC circuit 2 is controlled, to the waveform of the pulse of RF power amplifier 3 and frequency monitoring and the output monitoring modulation circuit 4 modulated according to the waveform and the frequency of monitoring result paired pulses; An accessory power supply 5 of giving pfc circuit 1, DC/DC circuit 2, RF power amplifier 3 and 4 power supplies of output monitoring modulation circuit.Accessory power supply adopts by the 3844 single-ended reverse exciting circuit that constitute, and realizes that three the tunnel isolate output, its limit, Central Plains one tunnel+15v, secondary two-way (+15V ,-5V; + 5V).
The present embodiment module can be divided into parts such as input EMI filtering and soft start, pfc circuit 1, DC/DC circuit 2, monitoring unit by function.Its monitor-interface partly comprises: the communication interface of 1 power module and monitoring module: RS485 communication baud rate 9600bps.Signal type between 2 power module internal module monitoring units and module controls: module protection signal (importing/under-voltage, overheated): the switching value signal, high level is effective, is read in from module control unit by the module monitors unit.Module failure signal (output overvoltage, former limit overcurrent, panel shutdown): the switching value signal, high level is effective, is read in from module control unit by the module monitors unit.3 module output voltage signals: by module control unit output 1-4V d. c. voltage signal, linear corresponding 0-Vmax module output voltage.Module output voltage certainty of measurement 1%; 4 module output current signals: by module control unit output 0-4V d. c. voltage signal, linear corresponding 0-Imax module output current.Module output current certainty of measurement 1%.Module is closed machine control signal: the switching value signal, high level is effective, the output of module monitors unit.The module monitors normal signal: the switching value signal, high level is effective, the output of module monitors unit.5 pressure regulation signal VPWM:1-4V analog signals, the output of module monitors unit, linear corresponding 0V-Vmax output voltage.6 current limliting signal IPWM:0-4V analog signals, the output of module monitors unit, linear corresponding 0-Imax output current.
Among Fig. 2, PFC partly adopts 33368 as control chip.The single-phase active power factor correction circuit is under the condition that satisfies relevant power factor and input harmonics standard, and the alternating current of importing is transformed to high voltage direct current output.Select the Single-phase PFC scheme of 33368 controls in the module.Pfc circuit can adopt known pfc circuit.
Among Fig. 3, be the utility model DC/DC circuit part block diagram, DC/DC partly adopts voltage-type control chip 3525 as the master control chip.The function of DC/DC part is the low-voltage DC that the high voltage direct current of 440V is transformed to specified 0-2V output, and this part main circuit is chosen in the double tube positive exciting circuit.Can adopt known DC/DC circuit.
After electric main enters rectification module,, be added to the input of rectifier bridge, for adopting the pfc circuit 1 of basic Boost topological structure, obtain stable high voltage direct current after the rectifier bridge through pfc circuit 1 through EMI filtering and soft start part.DC/DC circuit 2 is transformed to high voltage direct current the direct current output of 48V under PWM control.Under the effect of control and protective circuit; module has protection and functions such as input soft start, the protection of input overvoltage/undervoltage, output over-voltage protection, current-limiting protection, the protection of short circuit retraction, overheat protector, the protection of PFC output abnormality, the protection of input and output fuse, parallel current-sharing; for monitoring provides module type signal, guard signal, fault-signal, module output voltage current signal, can also finish functions such as module output voltage, output current limiting point, remote control switch, laser output frequency modulation are set by monitoring unit.
The load regulation of present embodiment≤0.4%; Electrical network regulation≤0.1%; Power factor 〉=0.98; Output (DC), voltage 0---2v is adjustable, and electric current 0---55A is adjustable; Insulation resistance 〉=1M Ω; Withstand voltage test 1500V/1min does not have the no arcing of puncture; The precision of voltage regulation≤0.5%.
Claims (1)
1, a kind of semiconductor pump laser integrated controller is characterized in that: comprise a pfc circuit (1) that alternating current is transformed into stable high voltage direct current; High voltage direct current with pfc circuit (1) is transformed to the DC/DC circuit (2) of galvanic current output; The RF power amplifier (3) of an output pulse signal; That output voltage to pfc circuit (1) is monitored and according to monitoring result the output voltage of DC/DC circuit (2) is controlled, to the waveform of the pulse of RF power amplifier (3) and frequency monitoring and the output monitoring modulation circuit (4) modulated according to the waveform and the frequency of monitoring result paired pulses; An accessory power supply (5) of giving pfc circuit (1), DC/DC circuit (2), RF power amplifier (3) and output monitoring modulation circuit (4) power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200673497U CN201204379Y (en) | 2008-05-22 | 2008-05-22 | Integrated controller for semiconductor pump laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200673497U CN201204379Y (en) | 2008-05-22 | 2008-05-22 | Integrated controller for semiconductor pump laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201204379Y true CN201204379Y (en) | 2009-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200673497U Expired - Fee Related CN201204379Y (en) | 2008-05-22 | 2008-05-22 | Integrated controller for semiconductor pump laser |
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| CN (1) | CN201204379Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101754537A (en) * | 2010-02-02 | 2010-06-23 | 大连九久光电制造有限公司 | Driving power supply for high-power LED street lamp |
| CN101895208B (en) * | 2009-03-27 | 2012-06-13 | 康舒科技股份有限公司 | Power supplier for negative pressure load |
| CN106787844A (en) * | 2016-06-21 | 2017-05-31 | 中国工程物理研究院应用电子学研究所 | Compact laser power supply |
| CN109498999A (en) * | 2018-12-07 | 2019-03-22 | 中国电子科技集团公司第四十研究所 | A kind of infrared polarizing light therapeutic equipment light intensity regulating circuit |
| CN109735823A (en) * | 2018-12-17 | 2019-05-10 | 厦门市万久物联技术有限公司 | A kind of induced with laser PVD equipment with circuit protection function |
| WO2019128078A1 (en) * | 2017-12-29 | 2019-07-04 | 深圳光峰科技股份有限公司 | Solid-state light source driving device and projection apparatus |
-
2008
- 2008-05-22 CN CNU2008200673497U patent/CN201204379Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895208B (en) * | 2009-03-27 | 2012-06-13 | 康舒科技股份有限公司 | Power supplier for negative pressure load |
| CN101754537A (en) * | 2010-02-02 | 2010-06-23 | 大连九久光电制造有限公司 | Driving power supply for high-power LED street lamp |
| CN106787844A (en) * | 2016-06-21 | 2017-05-31 | 中国工程物理研究院应用电子学研究所 | Compact laser power supply |
| WO2019128078A1 (en) * | 2017-12-29 | 2019-07-04 | 深圳光峰科技股份有限公司 | Solid-state light source driving device and projection apparatus |
| CN109498999A (en) * | 2018-12-07 | 2019-03-22 | 中国电子科技集团公司第四十研究所 | A kind of infrared polarizing light therapeutic equipment light intensity regulating circuit |
| CN109735823A (en) * | 2018-12-17 | 2019-05-10 | 厦门市万久物联技术有限公司 | A kind of induced with laser PVD equipment with circuit protection function |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090304 Termination date: 20160522 |