CN106324408B - Work circuit of baking machine for medium-high power continuous laser - Google Patents
Work circuit of baking machine for medium-high power continuous laser Download PDFInfo
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- CN106324408B CN106324408B CN201610882392.8A CN201610882392A CN106324408B CN 106324408 B CN106324408 B CN 106324408B CN 201610882392 A CN201610882392 A CN 201610882392A CN 106324408 B CN106324408 B CN 106324408B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/003—Environmental or reliability tests
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Environmental & Geological Engineering (AREA)
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- General Physics & Mathematics (AREA)
- Semiconductor Lasers (AREA)
- Lasers (AREA)
Abstract
The invention relates to a work circuit of a baking machine for a medium-high power continuous laser, which comprises a power supply circuit, a communication interface circuit, a laser interface circuit, a signal amplifying circuit, a display interface circuit, a PWM pulse signal amplifying circuit and a singlechip control circuit. The power supply circuit provides stable working voltage for other circuits, the communication interface circuit realizes the communication function between the baking machine tool and the laser and the upper computer, the laser interface circuit realizes the work between the baking machine tool and the laser and the interconnection of control signals, the signal amplifying circuit realizes the amplification and level conversion of analog signals, the display interface circuit realizes the simple man-machine interaction function, the PWM pulse signal amplifying circuit realizes the amplitude amplification of low-amplitude pulse signals with adjustable frequency and duty ratio without influencing the frequency and duty ratio, and the singlechip control circuit realizes the control and detection functions with other circuits, thereby being the core of the whole baking machine tool circuit.
Description
Technical Field
The invention relates to the technical field of electronic equipment, in particular to a continuous laser baking machine and the field of monitoring.
Technical Field
In the modern device manufacturing process, a device baking machine or an aging test is an indispensable link, particularly for lasers, and the baking machine process can verify the normal working performance of the device to a certain extent and can also expose potential problems. Therefore, it is extremely important to design a baking machine tool.
Disclosure of Invention
The invention aims to provide a work circuit of a baking machine for continuous medium-high power laser equipment. The continuous laser can selectively output analog voltage of 0V-10V or pulse signals with adjustable frequency and duty ratio according to requirements, and continuous laser operation is realized by providing the output signals.
The technical scheme and the working principle adopted by the invention are as follows:
the utility model provides a roast work circuit for well high-power continuous laser instrument, includes power supply circuit, communication interface circuit, laser instrument interface circuit, signal amplification circuit, display interface circuit, PWM pulse signal amplification circuit, singlechip control circuit, its characterized in that: the power supply circuit is associated with each circuit, provides stable power for each circuit, and simultaneously converts an external input power supply into voltages of different grades so as to ensure the normal working requirement of the whole circuit; the communication interface circuit is respectively associated with the power supply circuit and the singlechip control circuit, so that the communication between the baking machine and the medium-high power continuous laser or the communication between the baking machine and an external upper computer is realized; the laser interface circuit is respectively associated with the power supply circuit, the signal amplifying circuit and the singlechip control circuit, so that the signal interconnection of the baking machine working machine and the medium-high power continuous laser is realized; the signal amplifying circuit is respectively associated with the power supply circuit and the singlechip control circuit, so that signal amplification is realized to adapt to signal matching with the connected circuit; the display interface circuit is respectively associated with the power supply circuit and the singlechip control circuit, so that a simple man-machine interaction function is realized; the PWM pulse signal amplifying circuit is respectively associated with the power supply circuit and the singlechip control circuit and provides signals with adjustable frequency and duty ratio for the laser; the singlechip control circuit is associated with each circuit, and realizes control and monitoring of each circuit.
The power supply circuit converts an externally input 24V power supply into different levels of voltage so as to adapt to the working requirement of the whole circuit. The power supply circuit is specifically transformed into: the external input 24V is converted to voltage outputs of both 5V and 3.3V levels.
The communication interface circuit converts TTL level and 232 level to adapt to the level matching of the communication interface between the baking machine tool and the laser or the upper computer.
The laser interface circuit realizes interconnection between the baking machine tool and the laser, and the working state of the laser, the control of the output power of the laser and other related signals can be controlled through the interface.
The signal amplifying circuit comprises two signal amplifying chips (U12, U13), wherein a pin 1 of the U12 is connected with a laser interface circuit, a pin 2 of the U12 is connected with one ends of R32, R33 and C36, the other ends of R32 are grounded, the other ends of R33 and C36 are connected with the pin 1 of the U12, a pin 3 of the U12 is connected with one ends of R29 and C34, the other end of R29 is connected with a singlechip control circuit part, and the other end of C34 is connected with the pin 4 of the U12 and grounded; the 5 feet of the U12 are connected with one ends of the R31 and the C37, the other end of the C37 is grounded, the other end of the R31 is connected with a singlechip control circuit part, the 6 feet of the U12 are connected with one ends of the R36, the R37 and the C38, the other ends of the R36 are grounded, the other ends of the R37 and the C38 are connected with the 7 feet of the U12 and are connected with a laser interface circuit, and the 8 feet of the U12 are connected with a 24V power supply; the 1 pin of U13 is connected with a laser interface circuit, the 2 pin of U13 is connected with one ends of R72, R73 and C49, the other ends of R72 are grounded, the other ends of R73 and C49 are connected with the 1 pin of U13, the 3 pin of U13 is connected with one ends of R70 and C47, the other end of R70 is connected with a singlechip control circuit part, and the other end of C47 is connected with the 4 pin of U13 and grounded; the 5 feet of U13 are connected with one end of R71 and C48, the other end of C48 is grounded, the other end of R71 is connected with a single chip microcomputer control circuit part, the 6 feet of U13 are connected with one ends of R74, R75 and C50, the other ends of R74 are grounded, the other ends of R75 and C50 are connected with the 7 feet of U13 and are connected with a laser interface circuit part, and the 8 feet of U13 are connected with a 24V power supply. The signal amplifying circuit mainly realizes interface level conversion between the baking machine tool and the laser, amplifies signals by a certain multiple through the operational amplifier, and further meets the level matching between the baking machine tool and the laser.
The display interface circuit mainly realizes the connection of the baking machine tool and the LCD display screen, and realizes the functions of information display and man-machine interaction.
The PWM pulse signal amplifying circuit comprises a U18, wherein a 1 pin, a 4 pin and a 7 pin of the U18 are not connected with any part, a 2 pin of the U18 is connected with one end of an R27 and is connected with a singlechip control circuit, the other end of the R27 is connected with a 3.3V power supply, a 3 pin and a 5 pin of the U18 are grounded, a 6 pin of the U18 is connected with one end of an R28, the other end of the R28 is connected with a 2 pin of a J16, a 1 pin of the J16 is grounded, and an 8 pin of the U18 is connected with a 24V power supply. The PWM pulse signal amplifying circuit amplifies the PWM signal with lower amplitude output by the singlechip into the PWM signal with higher amplitude, the frequency and the duty ratio of the signal are not changed in the process of amplifying the signal, and the amplification of the amplitude of the PWM signal is realized through the chip U18.
The control circuit of the singlechip mainly realizes the control and monitoring functions of other circuits, is the core of the whole work circuit of the baking machine, and basically realizes the functions of other circuits by the singlechip.
The invention has the positive effects that: the work of the continuous laser can be well realized through the work circuit of the baking machine, the required signals can be provided for the work of the continuous laser, the communication between the baking machine and the laser and other control functions and other functions can be well realized through corresponding control software, and the baking machine and monitoring functions of the laser can be completed.
Drawings
FIG. 1 is a schematic diagram of the connection of the present invention.
Fig. 2 is a schematic diagram of a signal amplifying circuit according to the present invention.
Fig. 3 is a schematic diagram of a PWM pulse signal amplifying circuit according to the present invention.
Detailed Description
For the purpose of making the object and technical scheme of the present invention more clear, the practical use of the present invention will be further described in detail with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
In order to explain the technical scheme of the invention, specific practical use is described below.
As shown in fig. 1, a packaging circuit of a baking machine for a medium-high power continuous laser comprises a power supply circuit, a communication interface circuit, a laser interface circuit, a signal amplifying circuit, a display interface circuit, a PWM pulse signal amplifying circuit and a single chip microcomputer control circuit, and is characterized in that: the power supply circuit is associated with each circuit, provides stable power for each circuit, and simultaneously converts an external input power supply into voltages of different grades so as to ensure the normal working requirement of the whole circuit; the communication interface circuit is respectively associated with the power supply circuit and the singlechip control circuit, so that the communication between the baking machine and the medium-high power continuous laser or the communication between the baking machine and an external upper computer is realized; the laser interface circuit is respectively associated with the power supply circuit, the signal amplifying circuit and the singlechip control circuit, so that the signal interconnection of the baking machine working machine and the medium-high power continuous laser is realized; the signal amplifying circuit is respectively associated with the power supply circuit and the singlechip control circuit, so that signal amplification is realized to adapt to signal matching with the connected circuit; the display interface circuit is respectively associated with the power supply circuit and the singlechip control circuit, so that a simple man-machine interaction function is realized; the PWM pulse signal amplifying circuit is respectively associated with the power supply circuit and the singlechip control circuit and provides signals with adjustable frequency and duty ratio for the laser; the singlechip control circuit is associated with each circuit, and realizes control and monitoring of each circuit. The power supply circuit, the communication interface circuit, the laser interface circuit, the display interface circuit and the singlechip control circuit are all ready-made circuits and can be directly purchased and used.
As shown in fig. 2, the signal amplifying circuit includes two signal amplifying chips (U12, U13), pin 1 of U12 is connected to the laser interface circuit, pin 2 of U12 is connected to one ends of R32, R33 and C36, the other ends of R32 are grounded, the other ends of R33 and C36 are connected to pin 1 of U12, pin 3 of U12 is connected to one ends of R29 and C34, the other end of R29 is connected to the single chip microcomputer control circuit part, and the other end of C34 is connected to the pin 4 of U12 and grounded; the 5 feet of the U12 are connected with one ends of the R31 and the C37, the other end of the C37 is grounded, the other end of the R31 is connected with a singlechip control circuit part, the 6 feet of the U12 are connected with one ends of the R36, the R37 and the C38, the other ends of the R36 are grounded, the other ends of the R37 and the C38 are connected with the 7 feet of the U12 and are connected with a laser interface circuit, and the 8 feet of the U12 are connected with a 24V power supply; the 1 pin of U13 is connected with a laser interface circuit, the 2 pin of U13 is connected with one ends of R72, R73 and C49, the other ends of R72 are grounded, the other ends of R73 and C49 are connected with the 1 pin of U13, the 3 pin of U13 is connected with one ends of R70 and C47, the other end of R70 is connected with a singlechip control circuit part, and the other end of C47 is connected with the 4 pin of U13 and grounded; the 5 feet of U13 are connected with one end of R71 and C48, the other end of C48 is grounded, the other end of R71 is connected with a single chip microcomputer control circuit part, the 6 feet of U13 are connected with one ends of R74, R75 and C50, the other ends of R74 are grounded, the other ends of R75 and C50 are connected with the 7 feet of U13 and are connected with a laser interface circuit part, and the 8 feet of U13 are connected with a 24V power supply. The invention can output signals with different proportions at the output end by only changing the resistance values of R32 and R33, R36 and R37, R72 and R73, and R74 and R75, and can adjust the resistance values in the actual use process so that the output signal level is matched with the signal connected with the outside. For example, in practical use, the range of the input signal of the 3 feet of the U12 is 0V-3.3V, the input signal is limited to 0V-2.5V in use, the 1 feet of the U12 output the signal of 0V-10V by changing the resistance values of R32 and R33, namely the output power of the middle-high power continuous laser is controlled by the output analog signal of the 1 feet of the U12, and the process of baking machines with different power outputs in the baking machine process is further realized.
As shown in FIG. 3, the PWM pulse signal amplifying circuit comprises a U18, wherein the 1 pin, the 4 pin and the 7 pin of the U18 are not connected with any part, the 2 pin of the U18 is connected with one end of an R27 and is connected with a singlechip control circuit, the other end of the R27 is connected with a 3.3V power supply, the 3 pin and the 5 pin of the U18 are grounded, the 6 pin of the U18 is connected with one end of an R28, the other end of the R28 is connected with the 2 pin of a J16, the 1 pin of the J16 is grounded, and the 8 pin of the U18 is connected with a 24V power supply. The 3 pin input of U18 is a PWM signal of magnitude 3.3V during actual use, and its magnitude 3.3V is not changeable. The magnitude of the PWM signal output by the pin 6 of U18 can be changed by changing the power supply voltage of the pin 8 of U18, in this example, the pin 8 of U18 is a 24V power supply, and the voltage level of the pin 18 of U18 can be changed according to specific needs during actual use, so that the pin 6 of U18 outputs a PWM signal corresponding to the level of pin 8.
In the use process, signals with different frequencies and duty ratios are required to be controlled and output by the singlechip program, the parameters of the prefabricated frequencies and duty ratios can be set in the singlechip program, and the preset PWM signal output can be obtained on the 6 pins of the U18 after the program is run. As shown in figure 3, the J16 interface is an external interface of the baking machine tool, and in actual use, the corresponding interface connection with the medium-high power continuous laser is realized through the J16 interface.
While the invention has been described in detail, it should be understood that those skilled in the art can easily devise variations or substitutions within the scope of the present invention.
Claims (2)
1. The utility model provides a roast work circuit for well high-power continuous laser instrument, includes power supply circuit, communication interface circuit, laser instrument interface circuit, signal amplification circuit, display interface circuit, PWM pulse signal amplification circuit, singlechip control circuit, its characterized in that: the power supply circuit is associated with each circuit and provides stable power supply for each circuit; the communication interface circuit is respectively associated with the power supply circuit and the singlechip control circuit; the laser interface circuit is respectively associated with the power supply circuit, the signal amplifying circuit and the singlechip control circuit; the signal amplifying circuit is respectively associated with the power supply circuit and the singlechip control circuit; the display interface circuit is respectively associated with the power supply circuit and the singlechip control circuit; the PWM pulse signal amplifying circuit is respectively associated with the power supply circuit and the singlechip control circuit; the singlechip control circuit is associated with each circuit;
the signal amplifying circuit comprises a first amplifying chip U12 and a second amplifying chip U13, wherein a first output end of the first amplifying chip U12 is connected with the laser interface circuit, a first inverting input end of the first amplifying chip U12 is connected with one end of a thirty-second resistor R32, a thirty-third resistor R33 and a thirty-sixth capacitor C36, the other end of the thirty-second resistor R32 is grounded, the other ends of the thirty-third resistor R33 and the thirty-sixth capacitor C36 are connected with and connected with a first output end of the first amplifying chip U12, a first in-phase input end of the first amplifying chip U12 is connected with one ends of a twenty-ninth resistor R29 and a thirty-fourth capacitor C34, the other end of the twenty-ninth resistor R29 is connected with a singlechip control circuit part, and the other end of the thirty-fourth capacitor C34 is connected with a grounding end of the first amplifying chip U12 and grounded; the second non-inverting input end of the first amplifying chip U12 is connected with one ends of a thirty-first resistor R31 and a thirty-seventh capacitor C37, the other end of the thirty-seventh capacitor C37 is grounded, the other end of the thirty-first resistor R31 is connected with a singlechip control circuit part, the second inverting input end of the first amplifying chip U12 is connected with one ends of a thirty-sixth resistor R36, a thirty-seventh resistor R37 and a thirty-eighth capacitor C38, the other end of the thirty-sixth resistor R36 is grounded, the other ends of the thirty-seventh resistor R37 and the thirty-eighth capacitor C38 are connected with the second output end of the first amplifying chip U12 and a laser interface circuit, and the power end of the first amplifying chip U12 is connected with a 24V power supply; the first output end of the second amplifying chip U13 is coupled to the laser interface circuit, the first inverting input end of the second amplifying chip U13 is coupled to one end of a seventy-two resistor R72, a seventy-three resistor R73 and a forty-nine capacitor C49, the other end of the seventy-two resistor R72 is grounded, the other ends of the seventy-three resistor R73 and the forty-nine capacitor C49 are coupled to and connected to the first output end of the second amplifying chip U13, the first non-inverting input end of the second amplifying chip U13 is coupled to one ends of a seventy-seven resistor R70 and a forty-seven capacitor C47, the other end of the seventy-seven resistor R70 is coupled to the single chip microcomputer control circuit part, and the other end of the forty-seven capacitor C47 is coupled to the ground end of the second amplifying chip U13; the second non-inverting input end of the second amplifying chip U13 is connected with one ends of a seventy-first resistor R71 and a forty-eighth capacitor C48, the other end of the forty-eighth capacitor C48 is grounded, the other end of the seventy-first resistor R71 is connected with the singlechip control circuit part, the second inverting input end of the second amplifying chip U13 is connected with one ends of a seventy-fourth resistor R74, a seventy-fifth resistor R75 and a fifty capacitor C50, the other end of the seventy-fourth resistor R74 is grounded, the other end of the seventy-fifth resistor R75 and the other end of the fifty capacitor C50 are connected with the second output end of the second amplifying chip U13 and the laser interface circuit part, and the power end of the second amplifying chip U13 is connected with a 24V power supply.
2. A baking machine work circuit for a medium and high power continuous laser as claimed in claim 1, wherein: the PWM pulse signal amplifying circuit comprises a third amplifying chip U18, wherein a first empty pin of the third amplifying chip U18, a fourth empty pin of the third amplifying chip U18 and a seventh empty pin of the third amplifying chip U18 are not connected with any part, a PWM signal input end of the third amplifying chip U18 is connected with one end of a twenty-seventh resistor R27 and is connected with a singlechip control circuit, the other end of the twenty-seventh resistor R27 is connected with a 3.3V power supply, a grounding end of the third amplifying chip U18 and a cathode end of the third amplifying chip U18 are grounded, a PWM signal output end of the third amplifying chip U18 is connected with one end of a twenty-eighth resistor R28, the other end of the twenty-eighth resistor R28 is connected with a PWM signal input end of an output interface J16, a grounding end of the output interface J16 is grounded, and a power supply end of the third amplifying chip U18 is connected with a 24V power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610882392.8A CN106324408B (en) | 2016-10-10 | 2016-10-10 | Work circuit of baking machine for medium-high power continuous laser |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610882392.8A CN106324408B (en) | 2016-10-10 | 2016-10-10 | Work circuit of baking machine for medium-high power continuous laser |
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| CN106324408A CN106324408A (en) | 2017-01-11 |
| CN106324408B true CN106324408B (en) | 2023-08-22 |
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| CN201610882392.8A Active CN106324408B (en) | 2016-10-10 | 2016-10-10 | Work circuit of baking machine for medium-high power continuous laser |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108956181B (en) * | 2018-07-27 | 2024-04-02 | 光惠（上海）激光科技有限公司 | High-power optical fiber laser baking machine test system |
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| GB1538316A (en) * | 1976-07-13 | 1979-01-17 | Standard Telephones Cables Ltd | Optical fibre test equipment and method |
| JPH08304507A (en) * | 1987-10-23 | 1996-11-22 | Fujitsu Ltd | Quality discriminating device of semiconductor laser |
| JP2007214197A (en) * | 2006-02-07 | 2007-08-23 | Daitron Technology Co Ltd | Inspection method of semiconductor laser element, and equipment thereof |
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