CN207911109U - The xenon lamp pre-burning circuit of power supply is controlled for laser-beam welding machine - Google Patents
The xenon lamp pre-burning circuit of power supply is controlled for laser-beam welding machine Download PDFInfo
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- CN207911109U CN207911109U CN201820327900.0U CN201820327900U CN207911109U CN 207911109 U CN207911109 U CN 207911109U CN 201820327900 U CN201820327900 U CN 201820327900U CN 207911109 U CN207911109 U CN 207911109U
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- xenon lamp
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- mos pipe
- power supply
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Abstract
The utility model discloses the xenon lamp pre-burning circuits that power supply is controlled for laser-beam welding machine,Including common mode choke,Current rectifying and wave filtering circuit,PWM output circuits,Power MOS drive circuit and half-bridge inverter,The input terminal of the common mode choke is provided with insurance F1,Thermistor R1 and X1 capacitance C17,And the output end of common mode choke is electrically connected with current rectifying and wave filtering circuit,The current rectifying and wave filtering circuit is internally provided with rectifier bridge B1 and capacitance C4,And the output end of rectifier bridge B1 is electrically connected with capacitance C4,The anode of the capacitance C4 is electrically connected with the drain electrode of the power MOS pipe Q1 inside half-bridge inverter,And the source electrode of the cathode of capacitance C4 and the power MOS pipe Q2 inside half-bridge inverter are electrically connected,It carries out rectification and filtering using current rectifying and wave filtering circuit to the single phase ac alternating current of input,And the half-bridge inverter being made of power MOS pipe Q1 and power MOS pipe Q2 becomes high-frequency ac high pressure,Help to improve the stability of xenon lamp pre-burning electric current.
Description
Technical field
The utility model is related to electronic circuit technology fields, and the xenon lamp pre-burning of power supply is controlled particularly for laser-beam welding machine
Circuit.
Background technology
Xenon lamp is a kind of with the luminous electric light source using xenon gaseous discharge, since xenon sheet is as inert gas, with
The xenon lamp of xenon filling needs higher voltage that can puncture xenon, to make xenon lamp shine.And under normal circumstances, xenon lamp
The pre-burning voltage needed that shines may reach several kilovolts, especially when some required voltages of xenon lamp pre-burning can even reach
To 8000V or more.Currently, common xenon lamp there are stability poor, the imperfect disadvantage of pre-burning effect.
Utility model content
The prior art is difficult to meet the needs of people, above-mentioned in order to solve the problems, such as, the utility model proposes with
The xenon lamp pre-burning circuit of power supply is controlled in laser-beam welding machine.
To achieve the above object, the utility model provides the following technical solutions：The xenon of power supply is controlled for laser-beam welding machine
Lamp pre-burning circuit, including common mode choke, current rectifying and wave filtering circuit, PWM output circuits, power MOS drive circuit and semi-bridge inversion
The input terminal of device, the common mode choke is provided with insurance F1, thermistor R1 and X1 capacitance C17, and common mode choke is defeated
Outlet is electrically connected with current rectifying and wave filtering circuit, and the current rectifying and wave filtering circuit is internally provided with rectifier bridge B1 and capacitance C4, and rectification
The output end of bridge B1 is electrically connected with capacitance C4, and the anode of the capacitance C4 is with the power MOS pipe Q1's inside half-bridge inverter
Drain electrode is electrically connected, and the source electrode of the cathode of capacitance C4 and the power MOS pipe Q2 inside half-bridge inverter are electrically connected, the work(
The source electrode of rate metal-oxide-semiconductor Q1 is electrically connected with the drain electrode of power MOS pipe Q2, and the source electrode of power MOS pipe Q1 and power MOS pipe Q2 are equal
It is connect with high-frequency step-up transformer T2 by resonant inductance L1, secondary side and the rectifier bridge BD2 of the high-frequency step-up transformer T2 connect
It connects, the output end of the PWM output circuits is electrically connected with the primary side of driving transformer T1 in power MOS drive circuit, and is driven
Two groups of pair sides of dynamic transformer T1 are respectively by driving resistance R6, R7 to be connected to the grid of power MOS pipe Q1, power MOS pipe Q2
And source electrode, the output cathode VCC1 of the rectifier bridge BD2 are connected respectively to one end and the resistance R19 on high voltage package T3 pairs side, and electricity
The one end of R19 by appearance C15 connection high voltage package T3 primary sides is hindered, the high voltage package T3 primary side other ends are connected to rectifier bridge BD2's
Cathode, a pole of high voltage package pair side HV+ output connection xenon lamps, and xenon lamp cathode is connected at HV-.
Preferably, the capacitance C4 is for filtering energy storage, and one discharge resistance R3 of both ends parallel connection of capacitance C4.
Preferably, xenon lamp cathode junction HV- is grounded GND1 by resistance R17, R20, and the both ends resistance R17 are in parallel
One series circuit R14 and D2, one relay coil RY1 of parallel connection.
Preferably, the PWM output circuits are internally provided with integration module IC1 and integrated module I C2, and integration module
2 feet of IC1 are connect with 16 foot reference voltage sources, and power supply VCC1 is by the input terminal of resistance R4, R5 connection optocoupler U2, optocoupler output
End is connected to 1 foot of integration module IC1.
Preferably, 11 feet of the integration module IC1 and 14 feet export the low and high level of 180 ° of a phase difference respectively, and
It is connected to integration module IC2 drive amplification circuits.
Preferably, the integration module IC1 is integrated pwm chip SG3525
Compared with prior art, the utility model has the beneficial effects that：This is applied to opening for laser-beam welding machine control power supply
Power type xenon lamp pre-burning circuit is closed, it carries out rectification and filtering using current rectifying and wave filtering circuit to the single phase ac alternating current of input, and
The half-bridge inverter being made of power MOS pipe Q1 and power MOS pipe Q2 becomes high-frequency ac high-voltage electricity, high-frequency step-up transformer T2
Secondary side rectification after first charge to 600V to capacitance C14, at this time ceramic gas discharge tube discharge, high voltage package primary side formation put
Electrical circuit boosts to 20KV by coupling auxiliary side, and xenon lamp is lit, and fetches feedback voltage at the both ends xenon lamp current-limiting resistance R19 and send
To pwm circuit, the output duty cycle of pulse width modulator is changed according to the lifting of resistance both end voltage, it is pre- to help to improve xenon lamp
Fire the stability of electric current.
Description of the drawings
Fig. 1 is the principles of the present invention block diagram；
Fig. 2 is the circuit diagram of the utility model；
In figure：1- common mode chokes, 2- current rectifying and wave filtering circuits, 3- PWM output circuits, 4- power MOS drive circuit, 5-
Half-bridge inverter.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Referring to Fig. 1, a kind of embodiment provided by the utility model：The xenon lamp pre-burning of power supply is controlled for laser-beam welding machine
Circuit, including common mode choke 1, current rectifying and wave filtering circuit 2, PWM output circuits 3, power MOS drive circuit 4 and half-bridge inverter
5, the input terminal of the common mode choke 1 is provided with insurance F1, thermistor R1 and X1 capacitance C17, and common mode choke 1 is defeated
Outlet is electrically connected with current rectifying and wave filtering circuit 2, and the current rectifying and wave filtering circuit 2 is internally provided with rectifier bridge B1 and capacitance C4, and whole
The output end and capacitance C4 for flowing bridge B1 are electrically connected, anode and the power MOS pipe Q1 inside half-bridge inverter 5 of the capacitance C4
Drain electrode be electrically connected, and the source electrode electric connection of the power MOS pipe Q2 inside the cathode of capacitance C4 and half-bridge inverter 5, institute
The drain electrode of the source electrode and power MOS pipe Q2 of stating power MOS pipe Q1 is electrically connected, and the source electrode and power MOS pipe of power MOS pipe Q1
Q2 is connect by resonant inductance L1 with high-frequency step-up transformer T2, the secondary side of the high-frequency step-up transformer T2 and rectifier bridge
The primary side of BD2 connections, the output end and driving transformer T1 in power MOS drive circuit 4 of the PWM output circuits 3 electrically connects
It connects, and two groups of pair sides of driving transformer T1 are respectively by driving resistance R6, R7 to be connected to power MOS pipe Q1, power MOS pipe Q2
Grid and source electrode, the output cathode VCC1 of the rectifier bridge BD2 is connected respectively to one end and the resistance on high voltage package T3 pairs side
R19, and resistance R19, by one end of appearance C15 connection high voltage package T3 primary sides, the high voltage package T3 primary side other ends are connected to rectification
The cathode of bridge BD2, a pole of high voltage package pair side HV+ output connection xenon lamps, and xenon lamp cathode is connected at HV-, the electricity
Hold C4 for filtering energy storage, and both ends the parallel connection one discharge resistance R3, xenon lamp cathode junction HV- of capacitance C4 pass through electricity
It hinders R17, R20 and is grounded GND1, and the both ends resistance R17 parallel connection one series circuit R14 and D2, one relay coil RY1 of parallel connection,
The PWM output circuits 3 are internally provided with integration module IC1 and integrated module I C2, and 2 feet of integration module IC1 and 16 foot bases
Reference voltage source connects, and power supply VCC1 connects the input terminal of optocoupler U2 by resistance R4, R5, and optocoupler output is connected to integration module
1 foot of IC1,11 feet and 14 feet of the integration module IC1 export the low and high level of 180 ° of a phase difference respectively, and are connected to
Integration module IC2 drive amplification circuits, the integration module IC1 are integrated pwm chip SG3525.
The utility model is applied to the switch power supply type xenon lamp pre-burning circuit of laser-beam welding machine control power supply when in use, first
First single phase ac alternating current input is come in by insuring F1, thermistor R1, X1 capacitance C17 is connected to common mode choke 1, is then led to
Rectifier bridge B1 and capacitance C4 inside over commutation filter circuit 2 carry out rectification and filtering, then pass through power MOS pipe Q1, power
Metal-oxide-semiconductor Q2 and high-frequency step-up transformer T2 is changed into high-frequency ac high-voltage electricity, and capacitance C14 is charged to 600V, at this point, pottery
Porcelain gas discharge tube discharge, high voltage package T3 primary sides form discharge loop, 20KV are boosted to by coupling auxiliary side, and xenon lamp is lit,
The current-limiting resistance both ends of xenon lamp fetch feedback voltage and give pulse width modulator, change pulsewidth according to the lifting of resistance both end voltage
The output duty cycle of modulator improves the stability of xenon lamp pre-burning electric current, in addition, in PWM output circuits 3, resistance R15, electricity
Hold C12 and variable resistance RT and provide fundamental oscillation frequency for integration module IC1,2 feet of integration module IC1 are connected to 16 foot benchmark
Voltage source, power supply VCC1 connect the input terminal of optocoupler U2 by resistance R4, R5, and optocoupler U2 output ends are connected to integration module IC1
1 foot, 11 feet of integration module IC1 and 14 feet export the low and high level of 180 ° of a phase difference, are connected to integration module IC2 and drive
Dynamic amplifying circuit.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing in the equivalent requirements of the claims will be fallen
All changes in justice and range are embraced therein.Any reference numeral in claim should not be considered as limitation
Involved claim.
Claims (6)
1. for the xenon lamp pre-burning circuit of laser-beam welding machine control power supply, including common mode choke（1）, current rectifying and wave filtering circuit（2）、
PWM output circuits（3）, power MOS drive circuit（4）And half-bridge inverter（5）, it is characterised in that：The common mode choke（1）
Input terminal be provided with insurance F1, thermistor R1 and X1 capacitance C17, and common mode choke（1）Output end and rectifying and wave-filtering
Circuit（2）It is electrically connected, the current rectifying and wave filtering circuit（2）It is internally provided with rectifier bridge B1 and capacitance C4, and rectifier bridge B1's is defeated
Outlet is electrically connected with capacitance C4, the anode and half-bridge inverter of the capacitance C4（5）The drain electrode electricity of internal power MOS pipe Q1
Property connection, and the cathode and half-bridge inverter of capacitance C4（5）The source electrode of internal power MOS pipe Q2 is electrically connected, the power
The source electrode of metal-oxide-semiconductor Q1 is electrically connected with the drain electrode of power MOS pipe Q2, and the source electrode of power MOS pipe Q1 and power MOS pipe Q2 are logical
Resonant inductance L1 to be crossed to connect with high-frequency step-up transformer T2, the secondary side of the high-frequency step-up transformer T2 is connect with rectifier bridge BD2,
The PWM output circuits（3）Output end and power MOS drive circuit（4）The primary side of interior driving transformer T1 is electrically connected, and
Two groups of pair sides of driving transformer T1 are respectively by driving resistance R6, R7 to be connected to the grid of power MOS pipe Q1, power MOS pipe Q2
The output cathode VCC1 of pole and source electrode, the rectifier bridge BD2 is connected respectively to one end and the resistance R19 on high voltage package T3 pairs side, and
For resistance R19 by holding one end of C15 connection high voltage package T3 primary sides, the high voltage package T3 primary side other ends are connected to rectifier bridge BD2
Cathode, a pole of high voltage package pair side HV+ output connection xenon lamp, and xenon lamp cathode is connected at HV-.
2. the xenon lamp pre-burning circuit according to claim 1 for laser-beam welding machine control power supply, it is characterised in that：It is described
Capacitance C4 is for filtering energy storage, and one discharge resistance R3 of both ends parallel connection of capacitance C4.
3. the xenon lamp pre-burning circuit according to claim 1 for laser-beam welding machine control power supply, it is characterised in that：It is described
Xenon lamp cathode junction HV- is grounded GND1, and the both ends resistance R17 one series circuit R14 of parallel connection and hair by resistance R17, R20
Optical diode D2, one relay coil RY1 of parallel connection.
4. the xenon lamp pre-burning circuit according to claim 1 for laser-beam welding machine control power supply, it is characterised in that：It is described
PWM output circuits（3）It is internally provided with integration module IC1 and integrated module I C2, and 2 feet of integration module IC1 and 16 foot benchmark
Voltage source connects, and power supply VCC1 connects the input terminal of optocoupler U2 by resistance R4, R5, and optocoupler output is connected to integration module
1 foot of IC1.
5. the xenon lamp pre-burning circuit according to claim 1 or 4 for laser-beam welding machine control power supply, it is characterised in that：
11 feet and 14 feet of the integration module IC1 export the low and high level of 180 ° of a phase difference respectively, and are connected to integration module
IC2 drive amplification circuits.
6. the xenon lamp pre-burning circuit according to claim 4 for laser-beam welding machine control power supply, it is characterised in that：It is described
Integration module IC1 is integrated pwm chip SG3525.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820327900.0U CN207911109U (en) | 2018-03-11 | 2018-03-11 | The xenon lamp pre-burning circuit of power supply is controlled for laser-beam welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820327900.0U CN207911109U (en) | 2018-03-11 | 2018-03-11 | The xenon lamp pre-burning circuit of power supply is controlled for laser-beam welding machine |
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| Publication Number | Publication Date |
|---|---|
| CN207911109U true CN207911109U (en) | 2018-09-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820327900.0U Active CN207911109U (en) | 2018-03-11 | 2018-03-11 | The xenon lamp pre-burning circuit of power supply is controlled for laser-beam welding machine |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2018
- 2018-03-11 CN CN201820327900.0U patent/CN207911109U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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