CN205724357U - A kind of single-ended reverse exciting circuit laser device drive circuit - Google Patents
A kind of single-ended reverse exciting circuit laser device drive circuit Download PDFInfo
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- CN205724357U CN205724357U CN201620360106.7U CN201620360106U CN205724357U CN 205724357 U CN205724357 U CN 205724357U CN 201620360106 U CN201620360106 U CN 201620360106U CN 205724357 U CN205724357 U CN 205724357U
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Abstract
A kind of single-ended reverse exciting circuit laser device drive circuit, C1 is input filter capacitor, and IGBT1 is switching tube, T1, as flyback transformer after T2 series connection, D1, R1, C3, Z1 forms absorbing circuit, T1 and T2 is completely just as by the secondary composition of a primary and two, C5, D10 is a secondary filter circuit of T1, C6, D11 are the filter circuit of another secondary of T1, C7, D12 is a secondary filter circuit of T2, C8, D13 are the filter circuit of another secondary of T2, and load is given in overall output after secondary Voltage Series.
Description
Technical field
The utility model relates to the drive circuit of a kind of laser instrument, belongs to photoelectron technical field.
Background technology
The species of laser instrument has a variety of, as solid state laser, gas laser, semiconductor laser, light
Fibre laser etc..In the middle of these laser instruments, in addition to part semiconductor laser instrument belongs to Direct Current pumping,
Remaining laser instrument is essentially all and carries out pumping by pumping source, especially for powerful laser instrument, needs
Use powerful drive circuit to be driven pumping source, thus produce powerful pump light, but existing
Having in technology and generally being directed to the different drive circuit of different laser instrument designs, general drive circuit is seldom logical
Cross simple change can be adapted on other laser instruments.Further, for the drive circuit of high power laser,
Superpower laser it is generally required to driving voltage also higher, now, transformer be difficult to design, major embodiment
Bad in insulation, greatly, in the problems such as leakage inductance is big, furthermore such circuit, the secondary devices of transformer is or not parasitic capacitance
Easily choose.The utility model puts forward for the problems referred to above just.
Utility model content
According to an embodiment of the present utility model, provide a kind of single-ended reverse exciting circuit laser device drive circuit, concrete group
Become as follows:
Including input, input includes positive input terminal vin1+ and negative input end vin1-, positive input terminal vin1+
Connect one end, the negative electrode of diode D1 and one end of transformer T1 primary coil of electric capacity C1 respectively, negative
Input vin1-connects the other end of electric capacity C1 and the emitter stage of IGBT1 respectively, and the colelctor electrode of IGBT1 divides
One end of other connection transformer T2 primary coil, one end of resistance R1, one end of electric capacity C3 and voltage stabilizing two
The negative electrode of pole pipe, and the other end of resistance R1, the other end of electric capacity C3 and the anode of Zener diode are altogether
With the anode being connected to diode D1 after connection, the other end connection transformer of transformer T1 primary coil
The other end of T2 primary coil.Transformer T1 and T2 all includes two secondary coils, first secondary coil
One end connect one end of electric capacity C5 and the anode of IGCT THY1 respectively, the other end of electric capacity C5 is respectively
Being connected to the negative electrode of diode D10 and one end of second secondary coil, the anode of diode D10 connects the
The other end of one secondary coil, one end of second subprime coil is connected to one end of electric capacity C6, electric capacity C6
The other end be connected respectively to one end of the 3rd secondary coil and the negative electrode of diode D11, diode D11
Anode be connected to the other end of second secondary coil, one end of the 3rd secondary coil is also connected to electric capacity
One end of C7, the other end of electric capacity C7 is connected to one end of the 4th secondary coil and the moon of diode D12
Pole, the anode of diode D12 is connected to the other end of the 3rd secondary coil, the one of the 4th secondary coil
End is also connected to one end of electric capacity C8 and an input of voltage isolation sensor VSEN3, electric capacity C8's
The other end is connected respectively to the negative electrode of diode D13, a power input of laser instrument and isolation voltage
Another input of sensor VSEN3, another power supply of the negative electrode connecting laser of IGCT THY1
Input, the gate pole of IGBT1 connects the output of drive circuit.The output of isolation voltage sensor VSEN3
Connecting the negative input end of comparator COMP2, the positive input terminal of comparator COMP2 connects given voltage, than
Output compared with device COMP2 connects the positive input terminal of comparator COMP1, the negative input of comparator COMP1
End is through saw-toothed wave generator VTR1 ground connection, and the end of the output of comparator COMP1 connects the input of drive circuit
End.
Brief description
Accompanying drawing 1 is the schematic diagram of drive circuit for laser of the present utility model.
Detailed description of the invention
Drive circuit for laser of the present utility model will be described below in detail on the basis of combining accompanying drawing.This practicality
Novel drive circuit for laser particular make-up is as follows:
Including input, input includes positive input terminal vin1+ and negative input end vin1-, positive input terminal vin1+
Connect one end, the negative electrode of diode D1 and one end of transformer T1 primary coil of electric capacity C1 respectively, negative
Input vin1-connects the other end of electric capacity C1 and the emitter stage of IGBT1 respectively, and the colelctor electrode of IGBT1 divides
One end of other connection transformer T2 primary coil, one end of resistance R1, one end of electric capacity C3 and voltage stabilizing two
The negative electrode of pole pipe, and the other end of resistance R1, the other end of electric capacity C3 and the anode of Zener diode are altogether
With the anode being connected to diode D1 after connection, the other end connection transformer of transformer T1 primary coil
The other end of T2 primary coil.Transformer T1 and T2 all includes two secondary coils, first secondary coil
One end connect one end of electric capacity C5 and the anode of IGCT THY1 respectively, the other end of electric capacity C5 is respectively
Being connected to the negative electrode of diode D10 and one end of second secondary coil, the anode of diode D10 connects the
The other end of one secondary coil, one end of second subprime coil is connected to one end of electric capacity C6, electric capacity C6
The other end be connected respectively to one end of the 3rd secondary coil and the negative electrode of diode D11, diode D11
Anode be connected to the other end of second secondary coil, one end of the 3rd secondary coil is also connected to electric capacity
One end of C7, the other end of electric capacity C7 is connected to one end of the 4th secondary coil and the moon of diode D12
Pole, the anode of diode D12 is connected to the other end of the 3rd secondary coil, the one of the 4th secondary coil
End is also connected to one end of electric capacity C8 and an input of voltage isolation sensor VSEN3, electric capacity C8's
The other end is connected respectively to the negative electrode of diode D13, a power input of laser instrument and isolation voltage
Another input of sensor VSEN3, another power supply of the negative electrode connecting laser of IGCT THY1
Input, the gate pole of IGBT1 connects the output of drive circuit.The output of isolation voltage sensor VSEN3
Connecting the negative input end of comparator COMP2, the positive input terminal of comparator COMP2 connects given voltage, than
Output compared with device COMP2 connects the positive input terminal of comparator COMP1, the negative input of comparator COMP1
End is through saw-toothed wave generator VTR1 ground connection, and the end of the output of comparator COMP1 connects the input of drive circuit
End.
This laser circuit is a kind of improved single-ended reverse exciting circuit, and C1 is input filter capacitor, and IGBT1 is
Switching tube, forms absorbing circuit, T1 as flyback transformer, D1, R1, C3, Z1 after T1, T2 series connection
With T2 completely just as, by the secondary composition of a primary and two, C5, D10 be one of T1 secondary
Filter circuit, C6, D11 are the filter circuit of another secondary of T1, and C7, D12 are time of T2
The filter circuit of level, C8, D13 are the filter circuit of another secondary of T2.After secondary Voltage Series whole
Body exports to load.
The output voltage to one of them secondary for the VSEN3 detects, and compares with given voltage, regulation
The pulse width of IGBT1, thus reach to regulate the purpose of output voltage.
Owing to the output voltage of laser instrument is higher, the no-load voltage ratio causing transformer is relatively big, and transformer is not easy design,
The device pressure voltage that secondary filter circuit needs is higher, and cost is high, especially output filter capacitor series connection, does not allows
Yi Jun presses.
This circuit, it is to avoid the problems referred to above, it is no longer necessary to consider high pressure and voltage-sharing, and sampling has only to adopt
Sample one tunnel secondary exports, and reduces the difficulty of voltage sample.
Claims (1)
1. a single-ended reverse exciting circuit laser device drive circuit, particular make-up is as follows:
nullIncluding input，Input includes positive input terminal vin1+ and negative input end vin1-，Positive input terminal vin1+ connects one end of electric capacity C1 respectively，The negative electrode of diode D1 and one end of transformer T1 primary coil，Negative input end vin1-connects the other end of electric capacity C1 and the emitter stage of IGBT1 respectively，One end of the colelctor electrode of IGBT1 connection transformer T2 primary coil respectively，One end of resistance R1，One end of electric capacity C3 and the negative electrode of Zener diode，And the other end of resistance R1，The anode of the other end of electric capacity C3 and Zener diode is connected to the anode of diode D1 after jointly connecting，The other end of the other end connection transformer T2 primary coil of transformer T1 primary coil，Transformer T1 and T2 all includes two secondary coils，One end of first secondary coil connects one end of electric capacity C5 and the anode of IGCT THY1 respectively，The other end of electric capacity C5 is connected respectively to the negative electrode of diode D10 and one end of second secondary coil，The anode of diode D10 connects the other end of first secondary coil，One end of second subprime coil is connected to one end of electric capacity C6，The other end of electric capacity C6 is connected respectively to one end of the 3rd secondary coil and the negative electrode of diode D11，The anode of diode D11 is connected to the other end of second secondary coil，One end of 3rd secondary coil is also connected to one end of electric capacity C7，The other end of electric capacity C7 is connected to one end of the 4th secondary coil and the negative electrode of diode D12，The anode of diode D12 is connected to the other end of the 3rd secondary coil，One end of 4th secondary coil is also connected to one end of electric capacity C8 and an input of voltage isolation sensor VSEN3，The other end of electric capacity C8 is connected respectively to the negative electrode of diode D13，One power input of laser instrument and another input of isolation voltage sensor VSEN3，Another power input of the negative electrode connecting laser of IGCT THY1，The gate pole of IGBT1 connects the output of drive circuit，The output of isolation voltage sensor VSEN3 connects the negative input end of comparator COMP2，The positive input terminal of comparator COMP2 connects given voltage，The output of comparator COMP2 connects the positive input terminal of comparator COMP1，The end of the output of comparator COMP1 connects the input of drive circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620360106.7U CN205724357U (en) | 2016-04-20 | 2016-04-20 | A kind of single-ended reverse exciting circuit laser device drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620360106.7U CN205724357U (en) | 2016-04-20 | 2016-04-20 | A kind of single-ended reverse exciting circuit laser device drive circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205724357U true CN205724357U (en) | 2016-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620360106.7U Expired - Fee Related CN205724357U (en) | 2016-04-20 | 2016-04-20 | A kind of single-ended reverse exciting circuit laser device drive circuit |
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| CN (1) | CN205724357U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762630A (en) * | 2016-04-20 | 2016-07-13 | 华北电力大学（保定） | Laser drive circuit of single-ended flyback circuit |
-
2016
- 2016-04-20 CN CN201620360106.7U patent/CN205724357U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762630A (en) * | 2016-04-20 | 2016-07-13 | 华北电力大学（保定） | Laser drive circuit of single-ended flyback circuit |
| CN105762630B (en) * | 2016-04-20 | 2019-03-01 | 华北电力大学（保定） | A kind of single-ended reverse exciting circuit laser device driving circuit |
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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 |
Granted publication date: 20161123 Termination date: 20190420 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |