CN202679770U - Inverter boost pulse laser power supply - Google Patents
Inverter boost pulse laser power supply Download PDFInfo
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- CN202679770U CN202679770U CN 201220356759 CN201220356759U CN202679770U CN 202679770 U CN202679770 U CN 202679770U CN 201220356759 CN201220356759 CN 201220356759 CN 201220356759 U CN201220356759 U CN 201220356759U CN 202679770 U CN202679770 U CN 202679770U
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Abstract
The utility model discloses an inverter boost pulse laser power supply. The power supply comprises an air break switch, a three-phase rectifier circuit, an inverter boost circuit, a negative voltage feedback circuit, an energy storage capacitance circuit, an IGBT (insulated gate bipolar transistor) discharge circuit, a negative current feedback circuit, a precombustion high-voltage circuit and a pulse xenon lamp, wherein the air break switch, the three-phase rectifier circuit and the inverter boost circuit are connected in sequence; the negative voltage feedback circuit is connected with the inverter boost circuit; a loop formed by the energy storage capacitance circuit, the negative current feedback circuit, the pulse xenon lamp and the IGBT discharge circuit is connected with the inverter boost circuit; and two ends of the pulse xenon lamp is connected with the precombustion high-voltage circuit. According to the inverter boost pulse laser power supply, the safety of a charging loop can be guaranteed, the unnecessary loss of the resistor of the charging loop can be reduced, the control capability of charging voltage in constant current discharge can be improved, and the current limiting function is provided when the switch power supply outputs at a constant voltage.
Description
Technical field
The utility model relates to a kind of Laser Power Devices, more particularly, relates in particular to a kind of powerful inversion boosting pulse laser power supply.
Background technology
Pulse laser power supply is to be specially Pulse Nd: the power supply of YAG laser design; adopt Switching Power Supply; inner by Single-chip Controlling; select the parameters such as laser output power, frequency and pulsewidth by touch formula guidance panel; the user programmes to laser pulse shape and parameter by keyboard; welding parameter and welding requirements are complementary; to reach best welding effect; thereby can satisfy the welding needs of nearly all metal; be the desired configuration of Multifunction laser welding machine, have the functions such as misoperation and overtemperature automatic protection functions.For high-power YAG pulse laser machining equipment, the application switch power technology can greatly be enhanced product performance, reduces volume weight, raises the efficiency, reduces cost, be expanded market.
Laser Power Devices mainly adopt constant-current supply and constant voltage source dual mode now, still, if the output of Switching Power Supply only possesses single constant-voltage characteristic (being constant voltage source) or single constant-current characteristics (being constant-current supply) is not safe and practical.If adopt the constant pressure source power supply, because the internal resistance of source is too little, whenever the initial stage of later storage capacitor charging of pulsed discharge, the excessive power safety that jeopardizes of charging current, more seriously, when xenon flash lamp was communicated with, excessive lamp current can cause fried excellent accident.Can prove that in whole constant voltage charge process, the energy that power supply provides has half will consume on the resistance of charge circuit, charge efficiency only is 50%; If the employing constant current source power supply, though charging current is restricted, charging voltage is wayward, is difficult to satisfy processing request.
The utility model content
The purpose of this utility model is for above-mentioned the deficiencies in the prior art, a kind of inversion boosting pulse laser power supply is provided, guarantee the fail safe of charge circuit, reduce the unnecessary loss at the resistance of charge circuit, the control ability of charging voltage when improving constant-current discharge.
For achieving the above object, inversion boosting pulse laser power supply provided by the utility model, comprise air switch, rectified three-phase circuit, inversion step-up circuit, voltage negative feedback circuit, the storage capacitor circuit, the IGBT discharge circuit, current negative feedback circuit, pre-burning high-tension circuit and xenon flash lamp, described air switch, rectified three-phase circuit, inversion step-up circuit links to each other successively, voltage negative feedback circuit links to each other with inversion step-up circuit, the storage capacitor circuit, current negative feedback circuit, xenon flash lamp, the IGBT discharge circuit forms the loop and links to each other with inversion step-up circuit, and the two ends of xenon flash lamp also link to each other with the pre-burning high-tension circuit.
Because the utility model is incorporated into power supply inside by air switch with the 380V line voltage; at first carry out three phase rectifier and process the direct voltage that obtains about 540V; carry out inversion boosting after finishing rectification; inversion boosting output obtains the alternating current of 700V; owing to adopted the inversion boosting processing; inversion boosting can effectively be kept apart external power grid; arrive the storage capacitor circuit so effectively guaranteed stable power supply; in order to guarantee the stability of inversion boosting, adopt voltage negative feedback circuit that storage capacitor and inversion step-up circuit are effectively detected, regulate and protect.After the storage capacitor circuit is finished thermal energy storage process; pre-burning high-tension circuit both paired pulses xenon lamp discharges high pressure; the pre-burning high-tension circuit keeps the required pre-burning of xenon lamp to keep electric current after the xenon lamp pre-burning; pre-burning success after-current negative-feedback circuit detects the electric current at xenon lamp two ends; beginning requires by the IGBT discharge circuit xenon lamp to be discharged according to setting parameter; discharging current can be up to 100～200A; significantly improved the peak power of Laser output, current negative feedback circuit carries out Real-Time Monitoring, protection and adjustment to the discharge scenario of xenon lamp simultaneously.
Therefore, the utility model can guarantee the fail safe of charge circuit, reduces the unnecessary loss at the resistance of charge circuit, and the control ability of charging voltage possesses current-limiting function when improving constant-current discharge when the Switching Power Supply constant voltage is exported.
Description of drawings
Fig. 1 is schematic diagram of the present utility model;
Fig. 2 is circuit structure diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with the embodiment in the accompanying drawing, but do not consist of any restriction of the present utility model.
Consult shown in Figure 1, it is the schematic diagram of the utility model inversion boosting pulse laser power supply, these Laser Power Devices comprise air switch, rectified three-phase circuit, inversion step-up circuit, voltage negative feedback circuit, the storage capacitor circuit, the IGBT discharge circuit, current negative feedback circuit, pre-burning high-tension circuit and xenon flash lamp, wherein, air switch, rectified three-phase circuit, inversion step-up circuit links to each other successively, voltage negative feedback circuit links to each other with inversion step-up circuit, the storage capacitor circuit, current negative feedback circuit, xenon flash lamp, the IGBT discharge circuit forms the loop and links to each other with inversion step-up circuit, the two ends of xenon flash lamp also link to each other with the pre-burning high-tension circuit, and the direction of arrow represents electric current and sense among the figure.
Consult shown in Figure 2, it is the circuit structure diagram of the utility model inversion boosting pulse laser power supply, described air switch is three-phase and four-line type air switch, and a corresponding end is respectively arranged on U, V, W triple line, by air switch the 380V line voltage is incorporated into power supply inside.
Described rectified three-phase circuit comprises three-phase commutation bridge, low-pass filter circuit and current rectifying and wave filtering circuit, wherein, three-phase commutation bridge is the three phase full wave rectification bridge, connected and be packaged as a whole by the form of full-wave bridge rectifier circuit by six rectifier diode D1～D6 and consist of, its input links to each other with air switch.Described low-pass filter circuit is comprised of two capacitor C 1 and C2, two inductance L 1 and L2 and a resistance R 1, inductance L 1, capacitor C 2 and inductance L 2 are connected rear in parallel with capacitor C 1 successively, link to each other with the output of three-phase commutation bridge again, resistance R 1 is in parallel with capacitor C 2, and the effect of this low-pass filter circuit mainly is the high-frequency interferencing signal that suppresses external power grid.Described current rectifying and wave filtering circuit is comprised of electrode capacitance C3 and C4 and two resistance R 2 and R3 by two, there is electrode capacitance C3 in parallel with resistance R 2, there is electrode capacitance C4 in parallel with resistance R 3, then both series connection, link to each other with low-pass filter circuit again, the effect of this current rectifying and wave filtering circuit mainly is the Alternating Component in the unidirectional pulse voltage after the filtering rectification, makes it to become level and smooth direct voltage.
Described inversion step-up circuit is comprised of full-bridge inverting unit and booster type transformer T, the full-bridge inverting unit is linked to be full bridge structure by four switching tube IGBT1～IGBT4, two inputs of this full bridge structure link to each other with the output of rectified three-phase circuit, and two outputs of full bridge structure link to each other with two inputs of transformer T.The gate pole of each switching tube links to each other with IGBT drive circuit and voltage negative feedback circuit respectively, realizes inversion control by the copped wave of IGBT drive circuit, adopts voltage negative feedback circuit that inversion step-up circuit is effectively detected, regulates and protects; All be parallel with a sustained diode and an afterflow capacitor C between the emitter of each switching tube and the collector electrode, form the IGBT protective circuit.Between the input of output of full-bridge inverting unit and transformer T, be serially connected with freewheeling circuit, this freewheeling circuit is comprised of four afterflow capacitor C 5～C8, and afterflow capacitor C 5 is in parallel with afterflow capacitor C 6, afterflow capacitor C 7 is in parallel with afterflow capacitor C 8, then both series connection.This inversion step-up circuit carries out inversion boosting to the direct current that obtains behind three phase rectifier, inversion boosting output can obtain the alternating current of 700V.
Described storage capacitor circuit is comprised of bridge rectifier and accumulator, bridge rectifier is linked to be full bridge structure by four rectifier diode D7～D10, two inputs of this full bridge structure link to each other with inversion step-up circuit, specifically link to each other with two outputs of transformer T, two outputs of full bridge structure link to each other with accumulator, change direct current into by the alternating current of bridge rectifier after with inversion boosting, accumulator is charged.Described accumulator is formed in parallel after having electrode capacitance C9～C18 to connect in twos by ten more together, and each has and all is parallel with a resistance R on the electrode capacitance.
Described IGBT discharge circuit is comprised of a switching tube IGBT5 and afterflow protective circuit, and the gate pole of switching tube links to each other with the IGBT drive circuit, by IGBT drive circuit controlled discharge; Be connected with the IGBT protective circuit between the emitter of switching tube and collector electrode, this IGBT protective circuit is comprised of the capacitor C 19 of connecting again after two diode D11 of parallel connection and D12 and four the resistance R 4～R7 parallel connection in parallel.Described afterflow protective circuit is comprised of two sustained diode 13 and D14, a capacitor C 20 and a resistance R 8; after two sustained diode 13, the D14 parallel connection; in parallel with the series circuit that capacitor C 20 and resistance R 8 form; the effect of this afterflow protective circuit is to prevent surge, and the IGBT discharge circuit is protected.
Described current negative feedback circuit is in series by an isolating diode D15, a current sensor, a contactor, this current negative feedback circuit is serially connected between storage capacitor circuit and the xenon flash lamp, isolating diode D15 is used for preventing that xenon flash lamp from forming reverse current, and current sensor is for detection of the magnitude of current at xenon flash lamp two ends; The other end of xenon flash lamp links to each other with inductance L 3, and the other end of inductance L 3 links to each other with the IGBT discharge circuit, and this inductance L 3 plays the effect of protection xenon flash lamp.Current sensor links to each other with the pre-burning high-tension circuit, and the pre-burning high-tension circuit also links to each other with xenon flash lamp, and after xenon flash lamp pre-burning, the pre-burning high-tension circuit can keep the required pre-burning of xenon flash lamp to keep electric current.
Operation principle of the present utility model is: by air switch the 380V line voltage is incorporated into power supply inside; at first carry out three phase rectifier and process the direct voltage that obtains about 540V; carry out inversion boosting after finishing rectification; inversion boosting output obtains the alternating current of 700V; owing to adopted the inversion boosting processing; inversion boosting can effectively be kept apart external power grid; arrive the storage capacitor circuit so effectively guaranteed stable power supply; in order to guarantee the stability of inversion boosting, adopt voltage negative feedback circuit that storage capacitor and inversion step-up circuit are effectively detected; regulate and protection.After the storage capacitor circuit is finished thermal energy storage process; pre-burning high-tension circuit both paired pulses xenon lamp discharges high pressure; the pre-burning high-tension circuit keeps the required pre-burning of xenon lamp to keep electric current after the xenon lamp pre-burning; pre-burning success after-current negative-feedback circuit detects the electric current at xenon lamp two ends; beginning requires by the IGBT discharge circuit xenon lamp to be discharged according to setting parameter; discharging current can be up to 100～200A; significantly improved the peak power of Laser output, current negative feedback circuit carries out Real-Time Monitoring, protection and adjustment to the discharge scenario of xenon lamp simultaneously.
Claims (8)
1. inversion boosting pulse laser power supply, it is characterized in that: comprise air switch, rectified three-phase circuit, inversion step-up circuit, voltage negative feedback circuit, the storage capacitor circuit, the IGBT discharge circuit, current negative feedback circuit, pre-burning high-tension circuit and xenon flash lamp, described air switch, rectified three-phase circuit, inversion step-up circuit links to each other successively, voltage negative feedback circuit links to each other with inversion step-up circuit, the storage capacitor circuit, current negative feedback circuit, xenon flash lamp, the IGBT discharge circuit forms the loop and links to each other with inversion step-up circuit, and the two ends of xenon flash lamp also link to each other with the pre-burning high-tension circuit.
2. inversion boosting pulse laser power supply according to claim 1, it is characterized in that: described air switch is three-phase and four-line type air switch, and a corresponding end is respectively arranged on U, V, W triple line.
3. inversion boosting pulse laser power supply according to claim 1, it is characterized in that: described rectified three-phase circuit comprises three-phase commutation bridge, low-pass filter circuit and current rectifying and wave filtering circuit, wherein, three-phase commutation bridge is the three phase full wave rectification bridge, (D1～D6) form by full-wave bridge rectifier circuit connects and the formation that is packaged as a whole, and its input links to each other with air switch by six rectifier diodes; Described low-pass filter circuit is comprised of two electric capacity (C1, C2), two inductance (L1, L2) and a resistance (R1), inductance (L1), electric capacity (C2) and inductance (L2) are connected rear in parallel with electric capacity (C1) successively, link to each other with the output of three-phase commutation bridge, resistance (R1) is in parallel with electric capacity (C2) again; Described current rectifying and wave filtering circuit has electrode capacitance (C3, C4) and two resistance (R2, R3) to form by two, there is electrode capacitance (C3) in parallel with resistance (R2), have electrode capacitance (C4) in parallel with resistance (R3), then both series connection link to each other with low-pass filter circuit again.
4. inversion boosting pulse laser power supply according to claim 1, it is characterized in that: described inversion step-up circuit is comprised of full-bridge inverting unit and booster type transformer (T), (IGBT1～IGBT4) is linked to be full bridge structure by four switching tubes in the full-bridge inverting unit, two inputs of this full bridge structure link to each other with the output of rectified three-phase circuit, and two outputs of full bridge structure link to each other with two inputs of transformer (T); The gate pole of each switching tube links to each other with IGBT drive circuit and voltage negative feedback circuit respectively, all is parallel with a fly-wheel diode (D) and an afterflow electric capacity (C) between the emitter of each switching tube and the collector electrode, forms the IGBT protective circuit.
5. inversion boosting pulse laser power supply according to claim 4, it is characterized in that: between an input of output of described full-bridge inverting unit and transformer (T), be serially connected with freewheeling circuit, this freewheeling circuit is by four afterflow electric capacity (C5～C8) form, afterflow electric capacity (C5) is in parallel with afterflow electric capacity (C6), afterflow electric capacity (C7) is in parallel with afterflow electric capacity (C8), then both series connection.
6. inversion boosting pulse laser power supply according to claim 1, it is characterized in that: described storage capacitor circuit is comprised of bridge rectifier and accumulator, (D7～D10) is linked to be full bridge structure to bridge rectifier by four rectifier diodes, two inputs of this full bridge structure link to each other with inversion step-up circuit, and two outputs of full bridge structure link to each other with accumulator; Described accumulator has electrode capacitance by ten, and (C9～C18) is formed in parallel after the series connection in twos more together, and each has and all is parallel with a resistance (R) on the electrode capacitance.
7. inversion boosting pulse laser power supply according to claim 1, it is characterized in that: described IGBT discharge circuit is comprised of a switching tube (IGBT5) and afterflow protective circuit, the gate pole of switching tube links to each other with the IGBT drive circuit, be connected with the IGBT protective circuit between the emitter of switching tube and collector electrode, (electric capacity (C19) of connecting again after the parallel connection of R4～R7) forms this IGBT protective circuit by two diodes (D11, D12) of parallel connection and four resistance in parallel; Described afterflow protective circuit is comprised of two fly-wheel diodes (D13, D14), an electric capacity (C20) and a resistance (R8); after two fly-wheel diodes (D13, D14) parallel connection, in parallel with the series circuit that electric capacity (C20) and resistance (R8) form.
8. inversion boosting pulse laser power supply according to claim 1, it is characterized in that: described current negative feedback circuit is in series by an isolating diode (D15), a current sensor, a contactor, this current negative feedback circuit is serially connected between storage capacitor circuit and the xenon flash lamp, the other end of xenon flash lamp links to each other with inductance (L3), and the other end of inductance (L3) links to each other with the IGBT discharge circuit.
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| CN 201220356759 CN202679770U (en) | 2012-07-23 | 2012-07-23 | Inverter boost pulse laser power supply |
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| CN 201220356759 CN202679770U (en) | 2012-07-23 | 2012-07-23 | Inverter boost pulse laser power supply |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103550869A (en) * | 2013-06-18 | 2014-02-05 | 北京时代卓易科技发展有限公司 | 1064nm lamp pump pulse laser therapeutic instrument and application method thereof |
| CN104242663A (en) * | 2014-09-18 | 2014-12-24 | 苏州迅镭激光科技有限公司 | Boosting laser welding power supply system |
| CN109375560A (en) * | 2018-12-14 | 2019-02-22 | 二三电器（上海）有限公司 | Split type intelligent controller |
| CN109451640A (en) * | 2018-10-24 | 2019-03-08 | 无锡市大华激光设备有限公司 | A kind of pulsed xenon lamp driver |
| CN109787470A (en) * | 2018-12-20 | 2019-05-21 | 西安西交瑞力电气研究院有限公司 | A kind of megajoule grade xenon flash lamp pump supply source of modularized design |
| CN110596443A (en) * | 2019-10-23 | 2019-12-20 | 安徽理工大学 | Electrode spacing adjustable integration aquatic high voltage pulse discharge device |
| CN111001090A (en) * | 2019-12-09 | 2020-04-14 | 中国科学院苏州生物医学工程技术研究所 | Xenon lamp discharge method, circuit and physical therapeutic apparatus |
| CN112689351A (en) * | 2021-03-04 | 2021-04-20 | 东莞市微视激光科技有限责任公司 | Xenon lamp pre-burning plate for laser welding power supply |
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2012
- 2012-07-23 CN CN 201220356759 patent/CN202679770U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103550869B (en) * | 2013-06-18 | 2016-04-13 | 北京时代卓易科技发展有限公司 | A kind of 1064nm lamp pumping pulse laser therapeutic instrument and using method thereof |
| CN103550869A (en) * | 2013-06-18 | 2014-02-05 | 北京时代卓易科技发展有限公司 | 1064nm lamp pump pulse laser therapeutic instrument and application method thereof |
| CN104242663A (en) * | 2014-09-18 | 2014-12-24 | 苏州迅镭激光科技有限公司 | Boosting laser welding power supply system |
| CN109451640A (en) * | 2018-10-24 | 2019-03-08 | 无锡市大华激光设备有限公司 | A kind of pulsed xenon lamp driver |
| CN109451640B (en) * | 2018-10-24 | 2020-04-14 | 无锡市大华激光设备有限公司 | Pulse xenon lamp driver |
| CN109375560B (en) * | 2018-12-14 | 2023-10-20 | 二一三电器(上海)有限公司 | Split intelligent controller |
| CN109375560A (en) * | 2018-12-14 | 2019-02-22 | 二三电器（上海）有限公司 | Split type intelligent controller |
| CN109787470A (en) * | 2018-12-20 | 2019-05-21 | 西安西交瑞力电气研究院有限公司 | A kind of megajoule grade xenon flash lamp pump supply source of modularized design |
| CN110596443A (en) * | 2019-10-23 | 2019-12-20 | 安徽理工大学 | Electrode spacing adjustable integration aquatic high voltage pulse discharge device |
| CN110596443B (en) * | 2019-10-23 | 2024-06-11 | 安徽理工大学 | Electrode spacing adjustable integrated underwater high-voltage pulse discharge device |
| CN111001090A (en) * | 2019-12-09 | 2020-04-14 | 中国科学院苏州生物医学工程技术研究所 | Xenon lamp discharge method, circuit and physical therapeutic apparatus |
| CN112689351A (en) * | 2021-03-04 | 2021-04-20 | 东莞市微视激光科技有限责任公司 | Xenon lamp pre-burning plate for laser welding power supply |
| CN112689351B (en) * | 2021-03-04 | 2023-08-08 | 东莞市微视激光科技有限责任公司 | Xenon lamp precombustion plate for laser welding power supply |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Inverter boost pulse laser power supply Effective date of registration: 20150215 Granted publication date: 20130116 Pledgee: Wuhan rural commercial bank Limited by Share Ltd Optics Valley branch Pledgor: Wuhan City Chu Yuan photoelectricity Co., Ltd Registration number: 2015990000149 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20160222 Granted publication date: 20130116 Pledgee: Wuhan rural commercial bank Limited by Share Ltd Optics Valley branch Pledgor: Wuhan City Chu Yuan photoelectricity Co., Ltd Registration number: 2015990000149 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Inverter boost pulse laser power supply Effective date of registration: 20160224 Granted publication date: 20130116 Pledgee: Wuhan rural commercial bank Limited by Share Ltd Optics Valley branch Pledgor: Wuhan City Chu Yuan photoelectricity Co., Ltd Registration number: 2016420000005 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20181126 Granted publication date: 20130116 Pledgee: Wuhan rural commercial bank Limited by Share Ltd Optics Valley branch Pledgor: Wuhan City Chu Yuan photoelectricity Co., Ltd Registration number: 2016420000005 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20190723 |
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| CF01 | Termination of patent right due to non-payment of annual fee |