CN117578174A - Control device and control method for Q driving source - Google Patents
Control device and control method for Q driving source Download PDFInfo
- Publication number
- CN117578174A CN117578174A CN202311495940.8A CN202311495940A CN117578174A CN 117578174 A CN117578174 A CN 117578174A CN 202311495940 A CN202311495940 A CN 202311495940A CN 117578174 A CN117578174 A CN 117578174A
- Authority
- CN
- China
- Prior art keywords
- signal
- module
- control device
- radio frequency
- closing time
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 12
- 230000003321 amplification Effects 0.000 claims abstract description 26
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 26
- 230000008878 coupling Effects 0.000 claims abstract description 8
- 238000010168 coupling process Methods 0.000 claims abstract description 8
- 238000005859 coupling reaction Methods 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims description 18
- 238000012544 monitoring process Methods 0.000 claims description 8
- 230000006870 function Effects 0.000 claims description 7
- 230000005669 field effect Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 claims description 3
- 230000011664 signaling Effects 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 description 9
- 238000007726 management method Methods 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000013500 data storage Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009022 nonlinear effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/11—Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
- H01S3/1123—Q-switching
- H01S3/117—Q-switching using intracavity acousto-optic devices
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Semiconductor Lasers (AREA)
Abstract
The embodiment of the invention provides a control device of a Q driving source, which relates to the technical field of devices utilizing stimulated emission, and comprises the following components: the digital control module is used for modulating the trigger selection signal, generating a modulated door closing time signal and transmitting the modulated door closing time signal to the signal modulation module; the signal modulation module is used for generating a radio frequency signal, coupling the modulated door closing time signal into the radio frequency signal and generating a radio frequency modulation signal; the power amplification module is used for amplifying the radio frequency modulation signal generated by the signal modulation module to preset power, generating a final modulation radio frequency signal and outputting the final modulation radio frequency signal to the Q driving source, and controlling the on or off of the acousto-optic Q switching device through the Q driving source. According to the scheme, the accuracy of parameters such as the closing time and the repetition frequency of the Q driving source can be adjusted through the control device comprising the digital control module, the signal modulation module and the signal modulation module, so that the stability of the Q driving source is improved.
Description
Technical Field
The invention relates to the technical field of devices utilizing stimulated emission, in particular to a control device and a control method of a Q driving source.
Background
The Q driving source is a special driving source acting on an Acousto-Optic Q-switch device, and in a pulse solid laser, the pulse solid laser receives an external trigger control signal to generate a corresponding radio frequency signal and apply the corresponding radio frequency signal to a Q switching element, so that the control of laser output and pulse waveform modulation are realized. The output performance of the Q-drive source is critical to parameters such as laser power, pulse width, and repetition rate of the pulsed solid-state laser.
In the Q-switching control of a pulsed solid-state laser, a required pulse laser parameter is obtained by modulating the radio frequency energy of a Q-drive source, so that the modulation of the radio frequency output of the Q-drive source is critical. The conventional modulation control method generally adopts mechanical potentiometers or digital potentiometers to adjust and the like to control parameters such as radio frequency output closing time (radio frequency output closing time), repetition frequency and the like, and for some high-precision ns-level control occasions, the mechanical potentiometers have the defects of large temperature drift, low adjustment precision, easiness in mechanical abrasion and the like, and the digital potentiometers have the defects of large temperature drift, limited resistance range, limited resolution and the like, so that the requirements of long-term high-precision control are difficult to meet.
Disclosure of Invention
In view of the above, the embodiment of the invention provides a control device for a Q driving source, which solves the technical problems of large temperature drift, limited resistance range, low adjustment precision, easy mechanical abrasion and limited resolution in the prior art.
The embodiment of the specification provides the following technical scheme:
a control device for a Q drive source, comprising:
the digital control module is used for modulating the trigger selection signal, generating a modulated door closing time signal and transmitting the modulated door closing time signal to the signal modulation module;
the signal modulation module is used for generating a radio frequency signal, coupling the modulated door closing time signal into the radio frequency signal and generating a radio frequency modulation signal;
the power amplification module is used for amplifying the radio frequency modulation signal generated by the signal modulation module to preset power, generating a final modulation radio frequency signal and outputting the final modulation radio frequency signal to the Q driving source, and controlling the on or off of the acousto-optic Q switching device through the Q driving source.
Further, the digital control module includes:
the embedded processor MCU is used for judging the source of the trigger selection signal and controlling the programmable gate array FPGA to output a modulated gate closing time signal to the signal modulation module according to the source of the trigger selection signal, wherein the source of the trigger selection signal comprises an external trigger signal and an internal trigger signal;
the programmable gate array FPGA is used for receiving the external trigger signal and generating a modulated door closing time signal according to the control of the embedded processor MCU;
and the digital communication interface is used for carrying out data transmission with an external laser control system.
Further, the embedded processor MCU is further used for controlling the FPGA device to modulate the door closing time signal according to the first repetition frequency of the external trigger signal if the source of the trigger selection signal is the external trigger signal, and generating a modulated door closing time signal;
and if the source of the trigger selection signal is an internal trigger signal, controlling the FPGA device to modulate the closing time according to a second repetition frequency set in the external laser control system, and generating a modulated closing time signal.
Further, the digital control module further comprises:
the erasable programmable read-only memory is connected with the embedded processor MCU through a bus and is used for storing operation and setting information of the digital control module, wherein the operation and setting information comprises equipment factory information, fault states and control device operation time.
Further, the power amplification module includes:
the multi-stage amplifier comprises a gain amplifier, a driving amplifier and a power amplifier which are sequentially arranged according to the signal transmission direction.
Further, the gain amplifier is a variable gain amplifier and/or a monolithic microwave integrated circuit amplifier, the driving amplifier is a high-frequency field effect transistor, and the power amplifier is a radio-frequency MOS amplifier.
Further, the power amplification module further includes:
the state monitoring module is connected with the digital control module, the signal modulation module and the power amplification module one by one and is used for monitoring the running states of the digital control module, the signal modulation module and the power amplification module; and/or a power module for providing power to the control device of the Q driving source.
Further, the control device of the Q drive source further includes:
and the auxiliary module is used for carrying out logic control on the power supply function of the control device of the Q driving source.
Further, a control method of the control device of the Q drive source includes:
performing self-checking on a control device of the Q driving source, and initializing the control device of the Q driving source through initial operation parameters, wherein the operation parameters comprise register parameters of an embedded processor MCU and a programmable gate array FPGA;
after initialization is completed, setting trigger signal parameters of a Q driving source through an external laser control system, and transmitting the trigger signal parameters to a digital control module through a digital communication interface;
judging the source of the trigger selection signal through the digital control module, modulating the door closing time signal according to the trigger signal parameter, and generating a modulated door closing time signal;
and coupling the modulated closing time signal to a radio frequency signal generated by the modulation module, and generating a final modulated radio frequency signal after amplifying the radio frequency signal by the power amplification module.
Further, the control method of the control device of the Q drive source further includes:
during operation of the Q-drive source, operation and setup information is transmitted to an external laser control system through a digital communication interface.
Compared with the prior art, the beneficial effects that above-mentioned at least one technical scheme that this description embodiment adopted can reach include at least:
the control device comprising the digital control module, the signal modulation module and the signal modulation module can adjust the accuracy of parameters such as the closing time and the repetition frequency of the Q driving source, and improves the stability of the Q driving source.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of the overall structure of a control device of a Q drive source according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a digital control module according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a power amplifying module according to an embodiment of the present invention.
Detailed Description
Embodiments of the present application are described in detail below with reference to the accompanying drawings.
Other advantages and effects of the present application will become apparent to those skilled in the art from the present disclosure, when the following description of the embodiments is taken in conjunction with the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. The present application may be embodied or carried out in other specific embodiments, and the details of the present application may be modified or changed from various points of view and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
The Q driving source is a special radio frequency power supply for driving an acousto-optic Q switch in a cabin of the solid laser, and applies corresponding radio frequency signals to an acousto-optic Q switch element in the cabin according to an external trigger control signal, so that the Q value of a resonant cavity of the solid laser is regulated, and the pulse laser output with high power, narrow pulse width and high stability is realized, and is a key component of the solid laser.
In one embodiment, the main technical indicators of the design of the Q driving source are as follows:
(1) Radio frequency output power: two-way 55+/-5W;
(2) Radio frequency center frequency: 27.12MHz;
(3) Load impedance: 50 omega;
(4) Radio frequency falling-rising edge: less than or equal to 200ns;
(5) Repetition frequency: factory defaults to 10kHz, and 1-60kHz is adjustable;
(6) Radio frequency off time: 0.3-5us of adjustable number;
(7) Standing wave ratio: less than or equal to 1.2;
(8) Harmonic suppression: less than or equal to-30 dBc;
(9) Water flow protection, standing wave ratio detection and overtemperature alarm multiple protection;
(10) Digital communication interface: RS485/CAN communication interface.
The embodiment of the invention provides a control device of a digital Q driving source based on an embedded MCU and an FPGA, which effectively solves the problems of low parameter adjustment precision, poor stability and the like of the Q driving source such as closing time, repetition frequency and the like, and can realize digital operation management including digital setting adjustment of parameters and data storage management such as equipment information, fault state, operation time and the like.
As shown in fig. 1, in the embodiment of the present invention, the control device of the Q driving source includes: the system comprises a digital control module, a signal modulation module, a power amplification module, an auxiliary module, a state monitoring module and a power supply module.
The digital control module is used for modulating the trigger selection signal, generating a modulated door closing time signal and transmitting the modulated door closing time signal to the signal modulation module.
As shown in fig. 2, the digital control module includes:
the digital control module is used as a control core, adopts a platform scheme of an embedded processor MCU (micro control unit) and a programmable gate array FPGA (field programmable gate array), and mainly comprises the following functions: 1. generating or coupling an externally input repetition frequency trigger control signal, namely selecting the repetition frequency trigger control signal as internal trigger or external trigger to control the output of a radio frequency modulation signal (in one embodiment, the center frequency of the radio frequency modulation signal is 27 MHz), ensuring that the repetition frequency generation nodes are in the same phase, and improving the control precision and the control quality of the system; 2. providing a digital communication interface, communicating with other equipment by using the digital communication interface of RS485/CAN, receiving control information of an external laser control system, setting working parameters such as closing time, repetition frequency and the like of a Q driving source, and controlling the Q driving source to work; 3. and uploading information such as the working state of the Q driving source to a control system of an external laser control system.
And the embedded processor MCU is used for judging the source of the trigger selection signal and controlling the programmable gate array FPGA to output a modulated gate closing time signal to the signal modulation module according to the source of the trigger selection signal, wherein the source of the trigger selection signal comprises an external trigger signal and an internal trigger signal.
The embedded processor MCU is also used for controlling the FPGA device to modulate the door closing time signal according to the first repetition frequency of the external trigger signal if the source of the trigger selection signal is the external trigger signal, and generating a modulated door closing time signal; and if the source of the trigger selection signal is an internal trigger signal, controlling the FPGA device to modulate the closing time according to a second repetition frequency set in the external laser control system, and generating a modulated closing time signal. The external trigger signal represents an externally input basic source signal and is used as a trigger signal of a Q driver to control the output of a high-frequency basic drive signal so as to ensure that the repetition frequency generation nodes are in the same phase. Specifically, the first repetition frequency is a fixed parameter of the external trigger signal, and the second repetition frequency is a parameter set in the Q-drive source control device (set by the external laser control system).
In some embodiments, the embedded processor MCU may use a Cortex-M3 core processor. The main frequency of the Cortex-M3 kernel processor is up to more than 100MHz, and the Cortex-M3 kernel processor has high performance, real-time processing and high expandability, can process complex logic control tasks in the running control of a Q driving source, and mainly realizes the functions of interface communication, parameter setting and logic action management of the whole machine.
And the programmable gate array FPGA is used for receiving the external trigger signal and generating a modulated door closing time signal according to the control of the embedded processor MCU.
In some embodiments, a programmable gate array FPGA may use an EP4CXX series FPGA. The EP4CXX series FPGA has strong digital signal processing capability, has main frequency up to 500MHz and up to tens of thousands of logic units, and can simultaneously meet the functions of signal modulation, filtering and the like by internally arranging a digital signal processing unit (DSP). The repetition frequency of the ns-level precision control 1-60k pulse laser is realized by the hardware performance and the processing algorithm of the EP4CXX series FPGA, the frequency of the laser pulse is determined by the Q drive repetition frequency, the closing time OFFTIME (closing time) influences the width of the laser pulse by influencing the closing time of the radio frequency output, and the higher the precision of the OFFTIME (closing time), the more advantageous is the control of the laser pulse width.
The digital control module adopts a dual-core structure of a high-speed core-M < 3+ > FPGA to process, receives an external trigger signal, is coupled with the signal modulation module at a high speed to generate a needed synchronous signal, and then sends the synchronous signal to the power amplification module to drive and amplify. The trigger signal (including the internal trigger signal and the external trigger signal) is a basic signal source of a control device of the Q driving source, is used as a trigger signal of signal modulation, controls the output of a high-frequency basic driving signal so as to ensure that the repetition frequency generation nodes are in the same phase, and meanwhile, needs to accurately control the OFFTIME (door closing time) time so as to ensure the coordination control of other systems and improve the control precision and quality of the whole system.
In some embodiments, the Cortex-M3 kernel embedded processor and Altera embedded FPGA can realize that the repetition frequency is 1-60kHz and the minimum adjustable precision is 0.1kHz, and the door closing time is 0.3-5us and the minimum adjustable precision is less than or equal to 3ns.
And the digital communication interface is used for carrying out data transmission with an external laser control system. The digital communication interface is an RS485 communication interface or a CAN digital communication interface, and an external laser control system is controlled through the digital interface, so that the external laser control system CAN conveniently and rapidly set the monitoring of the operating parameters (such as enabling, OFFTIME (door closing time), repetition frequency and the like) of the Q driver, the operating state (triggering state, operating time, fault alarm (radio frequency output short circuit, open circuit, standing wave ratio overrun, temperature overtemperature and the like)) of the Q driver.
In some embodiments, the anti-interference performance and the system reliability CAN be improved by adopting an isolated RS485/CAN communication interface.
The erasable programmable read-only memory is connected with the embedded processor MCU through a bus and is used for storing operation and setting information of the digital control module, wherein the operation and setting information comprises equipment factory information, fault states and control device operation time.
In some embodiments, an EEPROM (electrically charged erasable programmable read Only memory) employs an I2C bus interface, such as model 24LC 64.
The signal modulation module is used for generating a radio frequency signal, coupling the modulated door closing time signal into the radio frequency signal and generating a radio frequency modulation signal. The signal modulation module is responsible for generating a radio frequency signal, coupling an externally or internally generated XXkHz repetition frequency into the radio frequency signal, and then outputting the signal after primary amplification, filtering and shaping.
The power amplification module is used for amplifying the radio frequency modulation signal generated by the signal modulation module to preset power, generating a final modulation radio frequency signal and outputting the final modulation radio frequency signal to the Q driving source, and controlling the on or off of the acousto-optic Q switching device through the Q driving source. The power amplification module is a multistage amplifier, and the multistage amplifier comprises a gain amplifier, a driving amplifier and a power amplifier which are sequentially arranged according to the signal transmission direction. The gain amplifier is a variable gain amplifier and/or a monolithic microwave integrated circuit amplifier, the driving amplifier is a high-frequency field effect transistor, and the power amplifier is a radio-frequency MOS (metal oxide semiconductor field effect transistor) amplifier.
And the power amplification module receives the radio frequency waveform signal and then filters and amplifies the radio frequency waveform signal. After multistage filtering and driving amplification, a sinusoidal driving signal of about 20V is formed, and the sinusoidal driving signal also comprises a repetition frequency signal which is coupled in and is used as an initial driving signal. After the signal is sent into the power amplifying device again, the signal is oscillated and amplified to generate a radio frequency modulation signal of about 160V, and the acousto-optic Q switch is driven to work.
The power amplification module is one of important core functional circuits of the Q driving source, and has the function of amplifying a radio frequency modulation signal with lower power at a front stage to a certain power output for driving the acousto-optic Q switch, so that the acousto-optic Q switch achieves an ideal working state, and the efficiency, the power, the modulation speed and other performance indexes and the quality of an output signal of the power amplification module directly influence various technical indexes and the reliability of the Q driving source. According to the technical index requirement of the Q driving source, the output radio frequency power requirement is 50-60W, namely 47-47.8 dBm. As shown in fig. 3, according to the hardware design scheme and the power index, the rf amplifying part adopts a cascade amplifier link structure, the first stage is a gain amplifying stage, the second stage is a driving amplifying stage, and the third stage is a power amplifying stage.
The power distribution design of each stage is shown in fig. 3. Because the output power of the modulated radio frequency small signal is generally about 5dBm, the gain is realized by adopting a variable gain amplifier LMH6503 and an MMIC (monolithic microwave integrated circuit) amplifier SBF5089Z, the highest working frequency can reach 500MHz, the falling-rising edge of the modulated signal is less than 5ns, and favorable conditions are created for the falling of the subsequent radio frequency signal. The amplifier of the driving stage is realized by adopting a MW6S004NT1 device, the gain of the driving stage starts to be gradually compressed at the time of 5W, a nonlinear effect appears, and a matching circuit of the driving stage is designed by adopting a load traction method in order to ensure the output matching. The final power amplification is realized by adopting a radio frequency MOS (metal oxide semiconductor field effect transistor) amplifying device MRF173, the maximum power can stably work at 150MHz, the maximum output power is 80W, the output efficiency is 55%, and the matching requirement of an acoustic-optical Q switch of a cabin can be well adapted.
After being processed by the control device of the Q driving source, the output Q driving source meets the index of the design technology.
The state monitoring module is connected with the digital control module, the signal modulation module and the power amplification module one by one and is used for monitoring the running states of the digital control module, the signal modulation module and the power amplification module; and/or a power module for providing power to the control device of the Q driving source.
And the auxiliary module is used for carrying out logic control on the power supply function of the control device of the Q driving source. The auxiliary module comprises other auxiliary equipment such as a power supply, a relay and the like so as to realize power supply and power supply logic control of each module.
In some embodiments, the control device of the Q driving source further includes a standing wave detection module, where the standing wave detection module monitors the radio frequency output power and the standing wave state of the Q driving source in real time, and once abnormal states such as an acousto-optic Q switch at the output end load, an open circuit and a short circuit of the radio frequency signal cable are detected, the turn-off of the front-stage radio frequency output is immediately reduced, so that the Q switch load in the cabin is effectively protected, and the reliability of the Q driving source and the whole solid laser is improved.
In some embodiments, the external laser control system includes an input/output device such as a touch screen interface through which the observation or pre-configuration is performed.
The embodiment of the invention also comprises a control method of the control device of the Q driving source, which comprises the following steps:
performing self-checking on a control device of the Q driving source, and initializing the control device of the Q driving source through initial operation parameters, wherein the operation parameters comprise register parameters of an embedded processor MCU, a programmable gate array FPGA and peripheral device register parameters;
after initialization is completed, setting trigger signal parameters of a Q driving source through an external laser control system, and transmitting the trigger signal parameters to a digital control module through a digital communication interface;
judging the source of the trigger selection signal through the digital control module, modulating the door closing time signal according to the trigger signal parameter, and generating a modulated door closing time signal;
the modulated closing time signal is coupled to a radio frequency signal generated by the modulation module, and the radio frequency signal is further amplified by the power amplification module to generate a required final modulated radio frequency signal.
During operation of the Q-drive source, operation and setup information may be transferred to an external laser control system via a digital communication interface.
The embodiment of the invention realizes the following technical effects:
the problems of large temperature drift, low adjustment precision, poor stability and the like of devices such as a mechanical potentiometer and the like are solved, the technical indexes of a Q driving source are met through the combination of an embedded processor MCU, a programmable gate array FPGA, a signal modulation module and a power amplification module, the device has the advantages of convenience in parameter setting, high modulation precision, stable operation and the like, and the device also provides technical guarantee for realizing mass production debugging of Q driving source products and equipment, rapid installation debugging, operation and the like of a laser; the control device of the Q driving source is matched with an external laser control system to realize digital operation management, the digital operation management comprises digital setting adjustment of parameters and data storage management of equipment information, fault states, operation time and the like, the precision of the parameters such as the closing time and the repetition frequency of the Q driving source can be adjusted, and the stability of the Q driving source is improved.
It will be apparent to those skilled in the art that the modules or steps of the embodiments of the invention described above may be implemented in a general purpose computing device, they may be concentrated on a single computing device, or distributed across a network of computing devices, they may alternatively be implemented in program code executable by computing devices, so that they may be stored in a storage device for execution by computing devices, and in some cases, the steps shown or described may be performed in a different order than what is shown or described, or they may be separately fabricated into individual integrated circuit modules, or a plurality of modules or steps in them may be fabricated into a single integrated circuit module. Thus, embodiments of the invention are not limited to any specific combination of hardware and software.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations can be made to the embodiments of the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A control device for a Q drive source, comprising:
the digital control module is used for modulating the trigger selection signal, generating a modulated door closing time signal and transmitting the modulated door closing time signal to the signal modulation module;
the signal modulation module is used for generating a radio frequency signal, coupling the modulated door closing time signal into the radio frequency signal and generating a radio frequency modulation signal;
and the power amplification module is used for amplifying the radio frequency modulation signal generated by the signal modulation module to preset power, generating a final modulation radio frequency signal and outputting the final modulation radio frequency signal to a Q driving source, and controlling the on or off of the acousto-optic Q switching device through the Q driving source.
2. The Q-drive source control device according to claim 1, wherein the digital control module includes:
the embedded processor MCU is used for judging the source of the trigger selection signal and controlling the programmable gate array FPGA to output the modulated door closing time signal to the signal modulation module according to the source of the trigger selection signal, wherein the source of the trigger selection signal comprises an external trigger signal and an internal trigger signal;
the programmable gate array FPGA is used for receiving the external trigger signal and generating the modulated door closing time signal according to the control of the embedded processor MCU;
and the digital communication interface is used for carrying out data transmission with an external laser control system.
3. The control device of the Q driving source according to claim 2, wherein the embedded processor MCU is further configured to control the FPGA device to modulate a door closing time signal according to a first repetition frequency of the external trigger signal if the source of the trigger selection signal is the external trigger signal, and generate the modulated door closing time signal;
and if the source of the trigger selection signal is the internal trigger signal, controlling the FPGA device to modulate the closing time according to a second repetition frequency set in the external laser control system, and generating the modulated closing time signal.
4. The Q-drive source control device according to claim 2, wherein the digital control module further comprises:
the erasable programmable read-only memory is connected with the embedded processor MCU through a bus and is used for storing operation and setting information of the digital control module, wherein the operation and setting information comprises equipment factory information, fault states and control device operation time.
5. The Q-drive source control device according to claim 1, wherein the power amplification module includes:
the multi-stage amplifier comprises a gain amplifier, a driving amplifier and a power amplifier which are sequentially arranged according to the signal transmission direction.
6. The Q-driving source control device according to claim 5, wherein the gain amplifier is a variable gain amplifier and/or a monolithic microwave integrated circuit amplifier, the driving amplifier is a high-frequency field effect transistor, and the power amplifier is a radio-frequency MOS amplifier.
7. The Q-drive source control device according to claim 1, wherein the Q-drive source control device further comprises:
the state monitoring module is connected with the digital control module, the signal modulation module and the power amplification module one by one and is used for monitoring the running states of the digital control module, the signal modulation module and the power amplification module; and/or the number of the groups of groups,
and the power supply module is used for supplying power to the control device of the Q driving source.
8. The Q-drive source control device according to claim 1, wherein the Q-drive source control device further comprises:
and the auxiliary module is used for carrying out logic control on the power supply function of the control device of the Q driving source.
9. A control method of a control device based on the Q drive source according to any one of claims 1 to 8, characterized by comprising:
performing self-checking on the control device of the Q driving source, and initializing the control device of the Q driving source through initial operation parameters, wherein the operation parameters comprise register parameters of an embedded processor MCU and a programmable gate array FPGA;
after initialization is completed, setting trigger signal parameters of the Q driving source through an external laser control system, and transmitting the trigger signal parameters to the digital control module through the digital communication interface;
judging the source of a trigger selection signal through the digital control module, modulating a door closing time signal according to the trigger signal parameter, and generating a modulated door closing time signal;
and coupling the modulated door closing time signal to a radio frequency signal generated by the modulation module, and generating the final modulated radio frequency signal after the radio frequency signal is amplified by the power amplification module.
10. The control method of the control device of the Q drive source according to claim 9, characterized by further comprising:
and during the operation of the Q driving source, transmitting the operation and setting information to the external laser control system through the digital communication interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311495940.8A CN117578174A (en) | 2023-11-10 | 2023-11-10 | Control device and control method for Q driving source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311495940.8A CN117578174A (en) | 2023-11-10 | 2023-11-10 | Control device and control method for Q driving source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117578174A true CN117578174A (en) | 2024-02-20 |
Family
ID=89863536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311495940.8A Pending CN117578174A (en) | 2023-11-10 | 2023-11-10 | Control device and control method for Q driving source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117578174A (en) |
-
2023
- 2023-11-10 CN CN202311495940.8A patent/CN117578174A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102508214B (en) | Radar radiating source simulator | |
| CN112379602B (en) | Radar radiation source signal simulation system with accurate control of signal power | |
| CN103296568A (en) | Pulse fiber laser acoustic optical modulator driving power source | |
| CN109818236A (en) | A kind of more pulsewidth multifunction lasers and laser therapeutic apparantus | |
| CN106685443B (en) | A kind of broadband high-efficiency power amplifier including active load modulation | |
| CN110265855A (en) | High-energy pulse cluster laser as microwave system light guide device signal source | |
| CN101741787A (en) | Predistortion fast-convergence method and system for collecting training data | |
| CN102195591A (en) | Linear electrically controlled attenuator | |
| CN117578174A (en) | Control device and control method for Q driving source | |
| CN215681231U (en) | Pulse width adjustable optical fiber laser | |
| CN218570209U (en) | Microwave amplifier tube grid voltage control pulse modulation device | |
| CN116961603A (en) | Radar microwave power gain control circuit | |
| RU203913U1 (en) | Broadband power amplifier for radio transmitting device | |
| CN109150240A (en) | A kind of digital pre-distortion on-line training method for wireless frequency hopping communication system | |
| CN211014624U (en) | Ka-band frequency synthesizer based on radar use | |
| CN211320568U (en) | Multi-channel radio frequency circuit with adjustable laser pulse width | |
| RU219600U1 (en) | RADIO-TRANSMITTING DEVICE BASED ON BROADBAND POWER AMPLIFIER AND DIGITAL QUADRATIVE MODULATOR OF RADIO SIGNAL FOR OPERATION IN DSC MODES OF GMDSS SYSTEM | |
| CN108156105B (en) | Narrow-band FSK signal modulation system and method with variable power/frequency | |
| CN206835054U (en) | A kind of power amplifier module | |
| CN207305029U (en) | The microwave driving source with self-fixed amplitude technique of high energy accelerator for electron therapy | |
| CN207603589U (en) | A kind of pulse signal amplifying device of frequency conversion triggering | |
| Pichler et al. | Efficiency enhanced switched mode power amplifier for digital RF transmitters | |
| CN104104497A (en) | L wave band chaotic circuit based on gallium arsenide technology and design method of L wave band chaotic circuit | |
| RU2781434C1 (en) | Solid-state power amplifier | |
| CN113708801B (en) | Method and device for adjusting general near-field microwave driving device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |