CN111431286A - High-frequency power supply detection equipment - Google Patents
High-frequency power supply detection equipment Download PDFInfo
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- CN111431286A CN111431286A CN202010355158.6A CN202010355158A CN111431286A CN 111431286 A CN111431286 A CN 111431286A CN 202010355158 A CN202010355158 A CN 202010355158A CN 111431286 A CN111431286 A CN 111431286A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
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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
- G01R31/40—Testing power supplies
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
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Abstract
The invention discloses a high-frequency power supply detection device, which comprises: the system comprises a signal isolation module, a signal conditioning module, a main control module, an auxiliary control module and an industrial Ethernet physical module which are connected in sequence; the signal isolation module is used for isolating the output signal of the sampling high-frequency power supply and sending the sampling signal to the signal conditioning module; the signal conditioning module is used for conditioning the sampling signal into a digital signal and sending the conditioned digital signal to the main control module; the main control module is used for processing and detecting the digital signals and sending processing and detecting results to the auxiliary control module; the auxiliary control module is used for sending the processing and detection results of the main control module to the external Ethernet interface equipment through the industrial Ethernet physical module, and sending the data of the external Ethernet interface equipment to the main control module through the industrial Ethernet physical module. The high-frequency power supply detection equipment can be connected with an industrial Ethernet, is simplified by using wires, and has the beneficial effects of automation, digitalization, high real-time performance and the like.
Description
Technical Field
The invention relates to the field of high-frequency power supply detection, in particular to high-frequency power supply detection equipment.
Background
With the development of production automation, the role of industrial ethernet is increasing. Because in factory automation product lines, the information is communicated through links via industrial ethernet. Industrial ethernet is not only used for industrial automation, including motion control, smart grid, high-speed rail car, subway gate link, textile machines, machine tools, etc., but also is the scope of industrial ethernet applications.
The transmission line of the industrial ethernet is the same as an ethernet line used for a general PC (personal computer). The traditional industrial transmission line, including address line, data line and control line, must select a large bundle of parallel lines, but through industrial Ethernet, only one line is needed to transmit command to control data, and there is no need to use huge amount of wires.
In the field of food and beverage processing, for example, an automatic filling machine, a high-frequency power supply device is used in a sealing device of the automatic filling machine, and the high-frequency power supply device needs to be detected in the manufacturing and using processes of the automatic filling machine, the high-frequency power supply detection device in the market at present is old in design, interfaces such as RS232, RS485, can (controller Area network) and the like are provided, an industrial ethernet physical interface is not provided, the industrial ethernet physical interface cannot be directly accessed to an industrial ethernet for data interaction, and the use is very inconvenient.
Disclosure of Invention
The high-frequency power supply detection device of the present invention has been proposed in view of the problem that the high-frequency power supply detection device of the prior art is old and unsuitable for the demand of industrial automation, so as to overcome the above-mentioned problems.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high frequency power supply detection apparatus, the apparatus comprising: the system comprises a signal isolation module, a signal conditioning module, a main control module, an auxiliary control module and an industrial Ethernet physical module which are connected in sequence;
the signal isolation module is used for isolating the output signal of the sampling high-frequency power supply and sending the sampling signal to the signal conditioning module;
the signal conditioning module is used for conditioning the sampling signal into a digital signal and sending the conditioned digital signal to the main control module;
the main control module is used for processing and detecting the digital signals and sending processing and detecting results to the auxiliary control module;
the auxiliary control module is used for sending the processing and detection results of the main control module to the external Ethernet interface equipment through the industrial Ethernet physical module and sending the data of the external Ethernet interface equipment to the main control module through the industrial Ethernet physical module.
Optionally, the signal conditioning module comprises: two parallel signal conditioning channels and a two-channel high-speed ADC chip;
each signal conditioning channel includes: the high-speed operational amplifier following and adjustable gain amplifying module and the high-speed operational amplifier following and voltage adjustable offset module are sequentially connected;
the two-channel high-speed ADC chip is connected with the two signal conditioning channels, performs analog-to-digital conversion on the conditioned sampling signals, and sends the converted digital signals to the main control module.
Optionally, the signal conditioning module further comprises: a channel control module;
the channel control module is respectively connected with the high-speed operational amplifier following and adjustable gain amplification module and the high-speed operational amplifier following and voltage adjustable offset module;
the main control module is also used for adjusting the amplification factor and the reference voltage of the signal conditioning module through the channel control module.
Optionally, the apparatus further comprises: the switch amount control module and the key module;
the switching value control module and the key module are respectively connected with the main control module;
the main control module controls a control input signal of the high-frequency power supply through the switching value control module;
the main control module receives the input control parameters through the key module and adjusts the amplification factor and the reference voltage of the signal conditioning module according to the control parameters.
Optionally, the main control module is specifically configured to: one or more power parameters of signal waveform, effective value, holding time, frequency, phase difference and actual power of the high-frequency power supply are detected and calculated.
Optionally, the apparatus further comprises: the display module and the indicating module;
the display module and the indication module are respectively connected with the main control module;
the main control module displays and indicates the power parameters through the display module and the indication module.
Optionally, the main control module is implemented by adopting an FPGA chip, the auxiliary control module is implemented by adopting an ARM chip, the FPGA chip and the ARM chip are connected and communicated through a UART interface, and the auxiliary control module processes communication data according to a ModBus TCP protocol.
Optionally, the signal isolation module comprises: the voltage transformer and the current transformer respectively carry out isolated sampling on voltage and current signals output by the high-frequency power supply.
Optionally, the apparatus further comprises: a data storage module;
the data storage module is connected with the auxiliary control module, and the auxiliary control module is also used for storing the transmitted data to the data storage module while transmitting the data through the industrial Ethernet physical module.
Optionally, the device further comprises a power supply module, wherein the power supply module is externally connected with a 24V power supply and supplies power to the signal conditioning module, the main control module, the auxiliary control module and the industrial ethernet physical module after voltage conversion.
In conclusion, the beneficial effects of the invention are as follows:
the utility model provides a high frequency power supply check out test set, including the signal isolation module that connects gradually, signal conditioning module, main control module, vice control module and industry ethernet physical module, can realize the isolation sample of high frequency power supply signal, the back is handled and is detected by main control module to sample signal conditioning, and, the result of handling and detecting can also be through vice control module and industry ethernet physical module, send with the help of industry ethernet, the line for the equipment has been simplified, and has the automation, it is digital, it is portable, the high and large capacity high-speed communication's of real-time beneficial effect.
Drawings
Fig. 1 is a schematic diagram illustrating a configuration of a high-frequency power detection apparatus according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating a configuration of a high-frequency power detection apparatus according to another embodiment of the present invention;
FIG. 3 is a schematic diagram of a signal conditioning module of the high-frequency power detection apparatus according to the present invention;
FIG. 4 is a schematic diagram of an industrial Ethernet physical module of the high-frequency power detection device according to the present invention;
FIG. 5 is a schematic diagram showing the software modules of the main control module of the high-frequency power detection device according to the present invention;
FIG. 6 is a schematic diagram showing the software modules of the sub-control module of the high-frequency power detection apparatus according to the present invention;
in the figure, 110, a signal isolation module; 120. a signal conditioning module; 130. a main control module; 131. a switching value control module; 132. a key module; 133. a display module; 134. an indication module; 140. a secondary control module; 141. a data storage module; 150. an industrial Ethernet physical module; 160. and a power supply module.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The technical conception of the invention is as follows: the high-frequency power supply detection equipment comprises a signal isolation module, a signal conditioning module, a main control module, an auxiliary control module and an industrial Ethernet physical module which are sequentially connected, and can realize the isolation sampling of high-frequency power supply signals, the sampled signals are processed and detected by the main control module after being conditioned, in addition, the processing and detection results can also pass through the auxiliary control module and the industrial Ethernet physical module and are sent by means of the industrial Ethernet, the equipment wire is simplified, and the high-frequency power supply detection equipment has the beneficial effects of automation, digitalization, portability, high real-time performance and high-capacity high-speed communication.
Example one
Fig. 1 is a schematic configuration diagram of a high-frequency power detection apparatus according to an embodiment of the present invention, and as shown in fig. 1, the high-frequency power detection apparatus includes: the system comprises a signal isolation module 110, a signal conditioning module 120, a main control module 130, a secondary control module 140 and an industrial Ethernet physical module 150 which are connected in sequence.
The signal isolation module 110 is configured to isolate the output signal of the sampled high-frequency power supply and send the sampled signal to the signal conditioning module 120.
The signal conditioning module 120 is configured to condition the sampling signal into a digital signal, and send the conditioned digital signal to the main control module 130.
The main control module 130 is used for processing and detecting the digital signal, and sending the processing and detecting result to the sub-control module 140.
The sub-control module 140 is used for sending the processing and detection results of the main control module 130 to the external ethernet interface device through the industrial ethernet physical module 150, and sending the data of the external ethernet interface device to the main control module 130 through the industrial ethernet physical module 150.
Therefore, the high-frequency power detection device of the present application can acquire and detect the working data of the high-frequency power by performing the isolated sampling of the high-frequency power signal and processing and detection by the main control module 130. Meanwhile, as the high-frequency power detection device of the present application is additionally provided with the secondary control module 140 and the industrial ethernet physical module 150, the high-frequency power detection device can also be connected with an ethernet interface device, so that the high-frequency power detection device is connected to an industrial ethernet, so as to send out a processing and detection result through the industrial ethernet, and receive communication data from an external ethernet interface device, for example, receive contents such as control parameters or operation instructions.
Example two
Fig. 2 to 6 disclose another embodiment of the high-frequency power detection apparatus of the present application, fig. 2 is a schematic diagram of an overall configuration of the high-frequency power detection apparatus of the present application, and fig. 3 is a schematic diagram of a configuration of a signal conditioning module 120 of the high-frequency power detection apparatus of the present application; fig. 4 is a schematic diagram of the configuration of an industrial ethernet physical module 150 of the high-frequency power detection device according to the embodiment; FIG. 5 is a schematic diagram showing the software modules of the main control module 130 of the high-frequency power detection apparatus according to the embodiment; fig. 6 is a schematic diagram showing the software module configuration of the sub-control module 140 of the high-frequency power detection apparatus according to the embodiment.
As shown in fig. 2, in this embodiment, the high-frequency power detection device further includes a power module 160, where the power module 160 is externally connected to a 24V power supply, and supplies power to the signal conditioning module 120, the primary control module 130, the secondary control module 140, and the industrial ethernet physical module 150 after voltage conversion.
Because the power supply voltages required by the modules are different, the power supply module 160 can convert the voltage of the unified external 24V power supply and respectively supply the voltage to different modules to meet the working requirements of the modules. Specifically, the power module 160 generates ± 5V and +4.096V for the signal conditioning module 120 to use; +3.3V, +2.5V, and +1.25V are supplied to the main control module 130 for use; the +3.3V power is used by the secondary control module 140, the industrial ethernet physical module 150, and the like. Moreover, the power supply module 160 can protect the power supply voltages of the modules from influencing each other, thereby improving the stability and reliability of the high-frequency power supply detection device.
In addition, as shown in fig. 2, in the present embodiment, the main control module 130 is implemented by an FPGA (Field-programmable gate Array) chip, and the Verilog language control code can be written by an embedded development tool. The secondary control module 140 is implemented by an arm (advanced RISC machines) chip, which writes C language control codes through an embedded development tool. In the connection structure, the FPGA chip and the ARM chip are connected to communicate via a UART (universal asynchronous Receiver/Transmitter) interface. In the present embodiment, the secondary control module 140 processes communication data according to the ModBus TCP protocol. Modbus was invented in 1979 by Modicon (now a brand of Schneider electric company) and was the first bus protocol to be used in industrial fields worldwide. The ModBus network is an industrial communication system, is formed by connecting a programmable controller with an intelligent terminal and a computer through a public line or a local private line, and can be applied to various data acquisition and process monitoring.
As shown in fig. 3, in the present embodiment, the signal conditioning module 120 includes: two parallel signal conditioning channels and a two-channel high-speed ADC (Analog-to-Digital Converter) chip.
Wherein each signal conditioning channel comprises: the high-speed operational amplifier comprises a filtering and voltage dividing module, a high-speed operational amplifier following and adjustable gain amplifying module and a high-speed operational amplifier following and voltage adjustable offset module which are sequentially connected.
The high-speed operational amplifier following and adjustable gain amplifying module is used for amplifying signals, and the chip selects a high-speed 150M operational amplifier AD8065ART and a high-speed 100M automatic gain operational amplifier AD603 AR.
The high-speed operational amplifier following and voltage adjustable offset circuit performs reference adjustment on the signal, and the chip selects the high-speed 150M operational amplifier AD8065 ART.
The dual-channel high-speed ADC chip is connected to the two signal conditioning channels, performs analog-to-digital conversion on the conditioned sampling signal, and sends the converted digital signal to the main control module 130. Specifically, the dual-channel high-speed ADC chip can be AD9288BSTZ-100, and sends data to the main control module 130 through an 8-BIT parallel data interface.
In this embodiment, as shown in fig. 3, the signal conditioning module 120 further includes: and a channel control module.
The channel control module is respectively connected with the high-speed operational amplifier following and adjustable gain amplification module and the high-speed operational amplifier following and voltage adjustable offset module. The channel control module is controlled by the main control module 130 to provide voltage and control for the automatic gain op-amp and reference regulation.
In operation, the main control module 130 adjusts the amplification factor and the reference voltage of the signal conditioning module 120 through the channel control module. In an embodiment of the present application, the channel control module includes a DAC (Digital-to-analog converter) chip AD5320, which is connected to the main control module 130 through a Serial Peripheral Interface (SPI) data Interface and an Input/Output (IO) Interface, and receives control and adjustment of the main control module 130.
In this embodiment, the high-frequency power supply detecting apparatus further includes: a switching value control module 131 and a key module 132.
The switching value control module 131 and the key module 132 are respectively connected to the main control module 130.
The main control module 130 receives the input control parameters through the key module 132, and adjusts the amplification factor and the reference voltage of the signal conditioning module 120 according to the control parameters. In addition, the main control module 130 controls the control input signal of the high frequency power supply through the switching value control module 131, so as to realize the control and detection of the high frequency power supply.
In an embodiment of the present application, the switching value control module 131 includes a high-speed optical coupler, the chip is selected from T L P114A, and is used for controlling the 24V switching value isolation output, the switching value control module 131 is controlled by the FPGA chip of the main control module 130, and the output of the switching value control module 131 is connected to the switching value input of the high-frequency power supply, so as to realize the enabling and signal output control of the high-frequency switching power supply.
In this application, the main control module 130 is specifically configured to: one or more power parameters of signal waveform, effective value, holding time, frequency, phase difference and actual power of the high-frequency power supply are detected and calculated.
Accordingly, as shown in fig. 2, the high frequency power detection device of the present application further includes: a display module 133 and an indication module 134.
For example, the display module 133 adopts a 3.5-inch TFT (thin film Transistor) display, the main control module 130 mainly comprises a 3.5-inch TFT liquid crystal screen with 320 × 480 resolution, has the functions of displaying power parameter data such as waveform, effective value, holding time, frequency, phase difference and actual power of acquired signals, and is connected with an FPGA chip through an FSMC interface, the indication module 134 adopts an L ED indicator lamp, and the L ED indicator lamp is used for indicating total triggering duration and is connected with the FPGA chip through an IO port of the FPGA chip.
In this embodiment, the signal isolation module 110 includes: the voltage transformer and the current transformer respectively perform isolated sampling on the voltage and current signals output by the high-frequency power supply, and send the isolated sampling result to the signal conditioning module 120.
In this embodiment, as shown in fig. 2, the apparatus further includes: a data storage module 141. The data storage module 141 is connected to the secondary control module 140, and the secondary control module 140 is further configured to store the transmitted data (i.e., the processing and detection results of the primary control module) in the data storage module 141 while transmitting the data through the industrial ethernet physical module 150, so as to perform local storage, which is convenient for retrieval and use.
In this embodiment, a schematic diagram of the industrial ethernet physical module 150 is shown in fig. 4, and mainly includes a clock circuit, an ethernet control chip and a network transformer, and functions as receiving and sending control of ethernet data, and communicates with an external ethernet connection, the ethernet control chip selects W5500, and communicates with the ARM chip of the secondary control module 140 through high-speed SPI data, the W5500 is a full-hardware TCP/IP embedded ethernet controller, which integrates a TCP/IP protocol stack, 10/100M ethernet data link layer (MAC) and physical layer (PHY), and provides a network wake-up mode (WO L) and a power-down mode for a customer to select and use, and the network transformer selects 911105A, and connects with an external ethernet interface device through a network cable.
Fig. 5 is a schematic diagram of the software modules of the main control module 130 of the high-frequency power detection apparatus according to the present invention.
As shown in FIG. 5, a main control module 130(FPGA chip) is a first core of the device, the FPGA chip is a A L TERA corporation CycloneiV series EP4CE10E22C 8C 56 chip, a software module of the main control module 130 is Verilog language software designed by embedded development software, and comprises a main program task scheduling software module, a key input software module, a data signal reading and judging module, a signal amplifying and trigger control software module, a data signal reading and processing software module, a data signal processing and processing software module, a UART interface, a.
Fig. 6 is a schematic diagram showing the software module configuration of the sub-control module 140 of the high-frequency power detection apparatus according to the present invention.
As shown in fig. 6, the secondary control module 140(ARM) is a second core of the present high-frequency power detection apparatus. The ARM chip is STM32F103VCT6 from ST Italian semiconductor. The software module of the sub control module 140(ARM) is C language software designed by embedded development software. The components and functions of the device comprise: the main program task scheduling software module is connected with other modules in the auxiliary control module 140 and is responsible for initialization of the ARM chip and scheduling processing work of the subprogram tasks; the data storage processing software module is responsible for reading control of setting data and collecting data and is connected with the data storage module 141 through an ARM chip hardware serial SPI data port; the UART communication software module is responsible for interactive control of collected data and control data between the main control module 130(FPAG) and is connected with the FPGA chip through an ARM chip hardware UART communication interface; and the Modbus TCP communication software module is responsible for data interaction with the industrial Ethernet physical module 150 and is connected with the W5500 chip through an ARM chip hardware high-speed serial SPI data interface.
In summary, the high-frequency power detection device of the application comprises a signal isolation module, a signal conditioning module, a main control module, a secondary control module and an industrial ethernet physical module which are connected in sequence, so that the isolation sampling of high-frequency power signals can be realized, sampled signals are processed and detected by the main control module after conditioning, and the processed and detected results can be sent by the industrial ethernet through the secondary control module and the industrial ethernet physical module, so that the device wiring is simplified, and the high-frequency power detection device has the beneficial effects of automation, digitization, portability, high real-time performance and high-capacity high-speed communication; in addition, in the preferred embodiment of the present application, the high-frequency power detection device of the present application further includes a display module, an indication module, a switching value control module, a key module, a data storage module, a power module, and the like, and has rich operation and display functions, and is convenient and effective to use.
While the foregoing is directed to embodiments of the present invention, other modifications and variations of the present invention may be devised by those skilled in the art in light of the above teachings. It should be understood by those skilled in the art that the foregoing detailed description is for the purpose of better explaining the present invention, and the scope of the present invention should be determined by the scope of the appended claims.
Claims (10)
1. A high frequency power supply detecting apparatus, characterized by comprising: the system comprises a signal isolation module, a signal conditioning module, a main control module, an auxiliary control module and an industrial Ethernet physical module which are connected in sequence;
the signal isolation module is used for isolating and sampling an output signal of the high-frequency power supply and sending the sampling signal to the signal conditioning module;
the signal conditioning module is used for conditioning the sampling signal into a digital signal and sending the conditioned digital signal to the main control module;
the main control module is used for processing and detecting the digital signals and sending processing and detecting results to the auxiliary control module;
the auxiliary control module is used for sending the processing and detection results of the main control module to an external Ethernet interface device through the industrial Ethernet physical module, and sending the data of the external Ethernet interface device to the main control module through the industrial Ethernet physical module.
2. The high frequency power detection device of claim 1, wherein the signal conditioning module comprises: two parallel signal conditioning channels and a two-channel high-speed ADC chip;
each of the signal conditioning channels includes: the high-speed operational amplifier following and adjustable gain amplifying module and the high-speed operational amplifier following and voltage adjustable offset module are sequentially connected;
the two-channel high-speed ADC chip is connected with the two signal conditioning channels, performs analog-to-digital conversion on the conditioned sampling signal, and sends the converted digital signal to the main control module.
3. The high frequency power supply detection device of claim 2, wherein the signal conditioning module further comprises: a channel control module;
the channel control module is respectively connected with the high-speed operational amplifier following and adjustable gain amplification module and the high-speed operational amplifier following and voltage adjustable offset module;
the main control module is also used for adjusting the amplification factor and the reference voltage of the signal conditioning module through the channel control module.
4. The high frequency power supply detecting apparatus according to claim 3, characterized in that the apparatus further comprises: the switch amount control module and the key module;
the switching value control module and the key module are respectively connected with the main control module;
the main control module controls a control input signal of the high-frequency power supply through the switching value control module;
the main control module receives input control parameters through the key module and adjusts the amplification factor and the reference voltage of the signal conditioning module according to the control parameters.
5. The high-frequency power detection device according to claim 1, wherein the main control module is specifically configured to: one or more power parameters of signal waveform, effective value, holding time, frequency, phase difference and actual power of the high-frequency power supply are detected and calculated.
6. The high frequency power detecting apparatus according to claim 5, characterized in that the apparatus further comprises: the display module and the indicating module;
the display module and the indication module are respectively connected with the main control module;
the main control module displays and indicates the power parameters through the display module and the indication module.
7. The high-frequency power detection device according to claim 6, wherein the main control module is implemented by using an FPGA chip, the auxiliary control module is implemented by using an ARM chip, the FPGA chip and the ARM chip are connected and communicated through a UART interface, and the auxiliary control module processes communication data according to a ModBus TCP protocol.
8. The high frequency power supply detecting device according to claim 1, wherein the signal isolating module includes: the voltage transformer and the current transformer respectively carry out isolated sampling on voltage and current signals output by the high-frequency power supply.
9. The high frequency power supply detecting apparatus according to claim 1, characterized by further comprising: a data storage module;
the data storage module is connected with the auxiliary control module, and the auxiliary control module is also used for storing the transmitted data to the data storage module while transmitting the data through the industrial Ethernet physical module.
10. The high-frequency power detection device according to claim 1, further comprising a power module, wherein the power module is externally connected with a 24V power supply, and supplies power to the signal conditioning module, the main control module, the secondary control module and the industrial ethernet physical module after voltage conversion.
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| CN202010355158.6A CN111431286A (en) | 2020-04-29 | 2020-04-29 | High-frequency power supply detection equipment |
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| CN202010355158.6A CN111431286A (en) | 2020-04-29 | 2020-04-29 | High-frequency power supply detection equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112034377A (en) * | 2020-08-27 | 2020-12-04 | 国家电网有限公司 | Detection device for reflected wave power of high-frequency power supply and use method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112034377A (en) * | 2020-08-27 | 2020-12-04 | 国家电网有限公司 | Detection device for reflected wave power of high-frequency power supply and use method thereof |
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