Pulse power supply
By designing the pulse power supply of the touch screen and FPGA core board, high-precision pulse signals are automatically generated, which solves the problem of manual adjustment of pulse parameters in the electric vacuum transmitter test, and achieves efficient and accurate test results and improves test efficiency.
Patent Information
- Application Number
- CN202422049126.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-23
AI Technical Summary
In the test of existing electric vacuum transmitters, the pulse parameters need to be manually adjusted, with low accuracy, complex settings and poor real-time performance, making it difficult to meet the needs of fast and accurate testing.
A pulse power supply including a touch screen, FPGA core board, expansion circuit board and power conversion module is designed. The pulse parameters are input through the touch screen, and the FPGA digital technology is used to generate high-precision pulse signals, expand the circuit board to adjust the output amplitude, and realize the automatic generation of high-precision pulse sources.
It realizes fast, accurate and efficient measurement of electric vacuum transmitter testing, improves testing efficiency, solves the problems of low pulse accuracy, complex settings, and manual parameters adjustment, and improves the real-timeness of the test.
Smart Images
Figure CN223093682U_ABST
Abstract
Description
Technical Field
[0001] Embodiments of the present disclosure relate to the technical field of electro-vacuum transmitters, and in particular, to a pulse power supply. Background Art
[0002] Currently, in the field of electro-vacuum transmitter testing, the most direct way is to use foreign special instruments to adjust the pulse input parameters to the required levels, such as pulse frequency, pulse width, and pulse amplitude. Each time the power is turned on, it is necessary to reset them to suit the current test conditions, which brings inconvenience to the test; especially when the test requires complex changes in pulse parameters according to specific requirements, the current test situation is difficult to meet the working needs.
[0003] Therefore, it is necessary to improve one or more problems existing in the above related technical solutions.
[0004] It should be noted that this part aims to provide background or context for the technical solutions of the present disclosure stated in the claims. The descriptions herein are not admitted to be prior art just because they are included in this part. Utility Model Content
[0005] In order to avoid the deficiencies of the prior art, the present utility model provides a pulse power supply to solve the problems existing in the prior art, such as low pulse accuracy, complex settings, manual adjustment of pulse parameters, and poor real-time performance in the field of testing transmitters.
[0006] According to an embodiment of the present disclosure, a pulse power supply is provided, which includes:
[0007] A housing, on the side wall of which a touch screen is provided; inside the housing, there are an FPGA core board, an expansion circuit board, a first power conversion module, and a second power conversion module;
[0008] Among them, the touch screen, the FPGA core board, and the expansion circuit board are electrically connected in sequence, the first power conversion module is electrically connected to the touch screen and the expansion circuit board respectively, and the second power conversion module is electrically connected to the first power conversion module.
[0009] Further, a pulse output port is also provided on the housing, and the pulse output port is electrically connected to the expansion circuit board.
[0010] Further, a mains input interface is also provided on the housing, and the mains input interface is electrically connected to the first power conversion module.
[0011] Further, a power input port and a communication serial port are also provided on the touch screen, the power input port is electrically connected to the second power conversion module, and the communication serial port is electrically connected to the FPGA core board.
[0012] Further, a power switch indicator light is also provided on the housing, and the power switch indicator light is electrically connected to the power input port and the second power conversion module respectively.
[0013] Further, the FPGA core board includes a DDS frequency generation module, a pulse width generation module, a data communication module, a touch screen information processing module, and a duty cycle monitoring module; wherein, the data communication module is electrically connected to the touch screen information processing module, the touch screen information processing module is electrically connected to the DDS frequency generation module and the pulse width generation module respectively, and the DDS frequency generation module and the pulse width generation module are electrically connected to the duty cycle monitoring module respectively.
[0014] Further, the expansion circuit board includes a digital potentiometer, an adjustable voltage stabilizing circuit, and a pulse driving circuit; wherein, the digital potentiometer, the adjustable voltage stabilizing circuit, and the pulse driving circuit are electrically connected in sequence.
[0015] The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects:
[0016] In the embodiments of the present disclosure, through the above-mentioned pulse power supply, on the one hand, information such as the required pulse frequency, pulse width, and amplitude is input through the touch screen, the frequency of the pulse signal is generated by FPGA digital technology, the high-precision pulse width is generated by using a high-frequency and high-precision crystal oscillator counting method, and the output amplitude of the pulse is adjusted through the expansion circuit board, and finally the required pulse source is generated. On the other hand, it solves the disadvantages of low pulse accuracy, complex setting, manual adjustment of pulse parameters, and poor real-time performance in the field of test transmitters, ensures the fast, accurate, and efficient measurement of the performance parameters of the transmitter in the test of the electro-vacuum transmitter, and improves the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The drawings here are incorporated into the description and form a part of this description, showing embodiments consistent with the present disclosure, and are used together with the description to explain the principles of the present disclosure. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and those of ordinary skill in the art can obtain other drawings without creative efforts based on these drawings.
[0018] Figure 1 Showing a schematic structural diagram of a pulse power supply in an exemplary embodiment of the present disclosure;
[0019] Figure 2 Showing a basic principle block diagram of the pulse power supply in an exemplary embodiment of the present disclosure;
[0020] Figure 3Shows the front panel diagram of the pulse power supply in an exemplary embodiment of the present disclosure;
[0021] Figure 4 Shows the circuit diagram of the second power conversion module in an exemplary embodiment of the present disclosure;
[0022] Figure 5 Shows the structural schematic diagram of the FPGA core board in an exemplary embodiment of the present disclosure.
[0023] In the figure, 1. Touch screen; 2. Power switch indicator light; 3. Communication serial port; 4. Expansion circuit board; 5. FPGA core board; 6. Pulse output port; 7. Second power conversion module; 8. First power conversion module; 9. Mains input interface; 10. Power input port. Detailed implementation manners
[0024] Now, the exemplary embodiments will be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in various forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be more complete and comprehensive, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The features, structures, or characteristics described may be combined in any suitable manner in one or more embodiments.
[0025] In addition, the drawings are only schematic illustrations of the embodiments of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repeated description will be omitted. Some of the block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities.
[0026] In this exemplary embodiment, a pulse power supply is provided. Referring to Figure 1 as shown in, the pulse power supply may include:
[0027] A housing, on the side wall of the housing is provided a touch screen (1); inside the housing are provided an FPGA core board (5), an expansion circuit board (4), a first power conversion module (8) and a second power conversion module (7); wherein, the touch screen (1), the FPGA core board (5) and the expansion circuit board (4) are electrically connected in sequence, the first power conversion module (8) is respectively electrically connected to the touch screen (1) and the expansion circuit board (4), and the second power conversion module (7) is electrically connected to the first power conversion module (8).
[0028] Through the above pulse power supply, on the one hand, information such as the required pulse frequency, pulse width, and amplitude is input through the touch screen. The frequency of the pulse signal is generated by FPGA digital technology, and the high-precision pulse width is generated by using a high-frequency and high-precision crystal oscillator counting method. The output amplitude of the pulse is adjusted through the expansion circuit board, and finally the required pulse source is generated. On the other hand, it solves the disadvantages of low pulse accuracy, complex setting, manual adjustment of pulse parameters, and poor real-time performance in the field of test transmitters, ensures the fast, accurate, and efficient measurement of the performance parameters of the electro-vacuum transmitter during testing, and improves the test efficiency.
[0029] Next, reference will be made to Figures 1 to 5 for a more detailed description of each part of the above pulse power supply in this exemplary embodiment.
[0030] In one embodiment, a touch screen (1) is provided on the side wall of the housing; an FPGA core board (5), an expansion circuit board (4), a first power conversion module (8), and a second power conversion module (7) are provided inside the housing; among them, as Figure 2 shown, the touch screen (1), the FPGA core board (5), and the expansion circuit board (4) are electrically connected in sequence, the first power conversion module (8) is electrically connected to the touch screen (1) and the expansion circuit board (4) respectively, and the second power conversion module (7) is electrically connected to the first power conversion module (8).
[0031] Specifically, as Figure 1 in order to ensure the convenient portability of the high-precision pulse source, it further includes a housing, wherein the FPGA core board (5), the expansion circuit board (4), the first power conversion module (8), and the second power conversion module (7) are all installed inside the housing; a mains input interface (9) is provided on the rear panel of the housing, and the mains input interface (9) is electrically connected to the first power conversion module (8), and a pulse output port (6) is provided on the housing; the touch screen (1) is embedded inside the front panel of the housing, the touch screen (1) is provided with a power input port (10) and a communication serial port (3), and at the same time, a power switch indicator light (2) is embedded, as Figure 3 shown.
[0032] In one embodiment, the first power conversion module (8) is used to convert the 220V AC voltage of the mains input interface (9) into 12V DC voltage for the normal operation of the second power conversion module (7); the second power conversion module (7) is mainly a DC-DC conversion circuit, which converts the 12V voltage generated by the first power conversion module (8) into TTL 5V voltage for the normal operation of the expansion circuit board (4) and the touch screen (1) respectively.
[0033] In addition, the circuit diagram of the second power conversion module (7) is as Figure 4 shown.
[0034] In one embodiment, the touch screen (1) communicates with the FPGA core board (5) through a communication serial port (3) to receive information such as pulse frequency, pulse width, and pulse amplitude. The input of the touch screen (1) can adjust the frequency, width, and amplitude of the pulse, and display it in real time on the interface; the FPGA core board (5) analyzes the information such as frequency, pulse width, and amplitude according to the communication protocol, generates the frequency of the pulse signal using digital technology, and generates a high-precision pulse width using a high-frequency and high-precision crystal oscillator counting method; the expansion circuit board (4) can adjust the voltage output amplitude of the voltage stabilizing circuit according to the resistance values of different gears of the digital potentiometer, so as to adjust the output amplitude of the pulse, and finally generate the required pulse source.
[0035] In one embodiment, the FPGA core board (5) consists of 5 parts: 1. DDS frequency generation module: generates the frequency of the pulse signal using digital technology. 2. Pulse width generation module: generates a high-precision pulse width using a high-frequency and high-precision crystal oscillator counting method. 3. Data communication part: communicates with the touch screen (1) using a serial communication module, and the received information includes pulse frequency, pulse width, and pulse amplitude information. 4. Touch screen information processing module: this module processes the information received from the touch screen (1), analyzes the information such as frequency, pulse width, and amplitude according to the communication protocol, and sends it to the DDS frequency generation module and the pulse width generation module. 5. Duty cycle monitoring module: measures the frequency and period of the pulse, calculates the duty cycle of the pulse output, and compares it with the set duty cycle value. If it exceeds the preset value, the pulse can be quickly turned off to protect the test equipment.
[0036] As Figure 5 shown, it is a schematic structural diagram of the FPGA core board (5); among them, the data communication module is electrically connected to the touch screen information processing module, the touch screen information processing module is respectively electrically connected to the DDS frequency generation module and the pulse width generation module, and the DDS frequency generation module and the pulse width generation module are respectively electrically connected to the duty cycle monitoring module; the data communication module, touch screen information, DDS frequency generation module, pulse width generation module, and duty cycle monitoring module all transmit signals to the next level through digital circuit board printed lines, and the duty cycle monitoring module inputs the generated signals into the expansion circuit board through a rectangular dot connector.
[0037] In one embodiment, the expansion circuit board (4): mainly consists of a digital potentiometer, an adjustable voltage stabilizing circuit, and a pulse drive circuit. According to the resistance values of different gears of the digital potentiometer, the voltage output amplitude of the voltage stabilizing circuit can be adjusted, so as to adjust the output amplitude of the pulse.
[0038] In one embodiment, the input display mode of the HMI touch screen (1) is as follows: it communicates with the FPGA core board (5) through serial communication. The input of the touch screen (1) can adjust the frequency, width, and amplitude of the pulse and display them in real time on the interface.
[0039] Through the above pulse power supply, on the one hand, information such as the required pulse frequency, pulse width, and amplitude is input through the touch screen. The frequency of the pulse signal is generated by FPGA digital technology. The high-precision pulse width is generated by using a high-frequency and high-precision crystal oscillator counting method. The output amplitude of the pulse is adjusted through the expansion circuit board, and finally the required pulse source is generated. On the other hand, it solves the disadvantages of low pulse accuracy, complex setting, manual adjustment of pulse parameters, and poor real-time performance in the field of test transmitters, ensures the fast, accurate, and efficient measurement of the performance parameters of the electro-vacuum transmitter during testing, and improves the test efficiency.
[0040] It should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. in the above description is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the embodiments of the present disclosure.
[0041] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present disclosure, the meaning of "a plurality" is two or more, unless otherwise specifically defined.
[0042] In the embodiments of the present disclosure, unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.
[0043] In the embodiments of the present disclosure, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include indirect contact between the first and second features through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above or obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature includes that the first feature is directly below or obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.
[0044] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.
[0045] After considering the specification and practicing the utility model disclosed herein, those skilled in the art will readily conceive of other embodiments of the present disclosure. This application is intended to cover any variations, uses, or adaptations of the present disclosure, which follow the general principles of the present disclosure and include known common general knowledge or conventional technical means in the technical field not disclosed in the present disclosure. The specification and embodiments are only regarded as exemplary, and the true scope and spirit of the present disclosure are pointed out by the appended claims.
Claims
1. A pulse power supply, characterized in that, The pulse power supply includes: A housing, on the side wall of which a touch screen is provided; inside the housing, there are an FPGA core board, an expansion circuit board, a first power conversion module, and a second power conversion module; Among them, the touch screen, the FPGA core board, and the expansion circuit board are electrically connected in sequence. The first power conversion module is electrically connected to the touch screen and the expansion circuit board respectively, and the second power conversion module is electrically connected to the first power conversion module.
2. The pulse power supply according to claim 1, wherein A pulse output port is also provided on the housing, and the pulse output port is electrically connected to the expansion circuit board.
3. The pulse power supply according to claim 1, characterized in that, A mains input interface is also provided on the housing, and the mains input interface is electrically connected to the first power conversion module.
4. The pulse power supply according to claim 1, characterized in that, A power input port and a communication serial port are also provided on the touch screen. The power input port is electrically connected to the second power conversion module, and the communication serial port is electrically connected to the FPGA core board.
5. The pulse power supply according to claim 4, wherein A power switch indicator light is also provided on the housing, and the power switch indicator light is electrically connected to the power input port and the second power conversion module respectively.
6. The pulse power supply according to claim 1, wherein The FPGA core board includes a DDS frequency generation module, a pulse width generation module, a data communication module, a touch screen information processing module, and a duty cycle monitoring module; among them, the data communication module is electrically connected to the touch screen information processing module, the touch screen information processing module is electrically connected to the DDS frequency generation module and the pulse width generation module respectively, and the DDS frequency generation module and the pulse width generation module are electrically connected to the duty cycle monitoring module respectively.
7. The pulse power supply according to claim 1, wherein The expansion circuit board includes a digital potentiometer, an adjustable voltage stabilizing circuit, and a pulse driving circuit; among them, the digital potentiometer, the adjustable voltage stabilizing circuit, and the pulse driving circuit are electrically connected in sequence.