High-frequency power supply detection device
By integrating tools such as current transformers, multi-function meters, and virtual oscilloscopes, and connecting to equipment via a communication bus, the system enables multi-faceted performance testing of high-frequency switching power supplies through CAN bus and RS485 communication modules. This solves the technical problems of low efficiency and poor adaptability of traditional testing methods, providing a solution to these technical issues. It achieves comprehensive and accurate testing of high-frequency switching power supplies, reducing operational difficulty and labor costs.
Patent Information
- Application Number
- CN202520160813.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-01-23
AI Technical Summary
The technical problem that existing technologies cannot effectively solve is that traditional testing methods are difficult to accurately detect and analyze high-frequency switching power supplies, resulting in low testing efficiency and poor accuracy, and are unable to adapt to the complex circuit structure and high-frequency characteristics of high-frequency switching power supplies.
This system integrates current transformers, multi-function meters, and virtual oscilloscopes as testing tools, and uses a CAN bus and RS485 communication module to perform performance testing on high-frequency switching power supplies. It also connects to the switching power supply circuit via a CAN bus to achieve comprehensive performance testing of the high-frequency switching power supply.
It enables comprehensive testing of high-frequency switching power supplies, improves the comprehensiveness and accuracy of testing, reduces operational difficulty and labor costs, and increases testing efficiency.
Smart Images
Figure CN223857375U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to switching power supply detection technical field especially is related to a high frequency power detection device. BACKGROUND
[0002] At present, along with high frequency switching power supply technology development and mature, it has many advantages more and more prominent. The volume is small and exquisite, weight is light, this characteristic makes in the installation and use process can save a lot of space and is convenient for carrying and settling. It also has the advantage of wide voltage range, can work stably under different voltage conditions, ensures the normal operation of electrical equipment. And in the maintenance is also very convenient, whether it is daily inspection or troubleshooting when failure, can let the staff easily cope. These advantages make high frequency switching power supply in electrophoretic rectifier industry gradually stand out, show a kind of gradually replace traditional thyristor rectifier development trend.
[0003] High frequency switching power supply is quite widely used in modern electronic equipment, almost all kinds of electronic equipment power supply link. However, due to its high working frequency, complex circuit structure, this leads to the traditional detection means when facing high frequency switching power supply, it is difficult to accurately and comprehensively detect its performance, it is also difficult to accurately find out the fault. For example, the traditional detection method is not satisfactory in the detection efficiency, needs to spend a lot of time and labor cost to complete the detection work. More importantly, the traditional detection method cannot well adapt to the working characteristics of high frequency switching power supply, because its working frequency and circuit structure are quite different from traditional power supply, which causes the traditional detection method to have many limitations when detecting high frequency switching power supply. And these limitations, undoubtedly, bring not small challenge to high frequency switching power supply in application, maintenance and quality control and other aspects, restricts the better development and application of high frequency switching power supply technology. CONTENT OF THE UTILITY MODEL
[0004] The utility model aims at providing a kind of high frequency power detection device, solve the problem of low detection efficiency of traditional detection method, it is difficult to adapt to high frequency characteristics and lead to inaccurate detection result.
[0005] In order to achieve the above object, the utility model provides a kind of high-frequency power supply detection device, including incoming line power supply circuit, the incoming line power supply circuit is electrically connected with control circuit, switching power supply circuit, load, data interface circuit, current transformer, multifunction meter and virtual oscilloscope respectively, the data interface circuit is electrically connected with relay control module, and is connected with the switching power supply circuit by CAN bus, the multifunction meter is electrically connected with the switching power supply circuit by RS485 communication module, the control circuit the switching power supply circuit the load the data interface circuit the current transformer the virtual oscilloscope the multifunction meter and the relay control module are all with host computer communication connection.
[0006] Preferably, the incoming line power supply in the incoming line power supply circuit is AC380V+N+P, provides three-phase alternating current power supply input, the incoming line power supply is protected by overload and short circuit through fuse element GF1, then is connected to line-changing copper bar TA1, TA2 and TA3.
[0007] Preferably, the control circuit includes host socket RBCP1, and the host socket RBCP1 is connected to the incoming line power supply circuit by switch SB1, switch SB2, relay J13 and relay J14.
[0008] Preferably, the relay control module is composed of relay JC1, relay JC2, relay JC3, relay JC4, and resistance R1 and resistance R2 connected in parallel on relay JC1, resistance R3 and resistance R4 connected in parallel on relay JC2, resistance R5 and resistance R6 connected in parallel on relay JC3, resistance R7 and resistance R8 connected in parallel on relay JC4.
[0009] Preferably, the virtual oscilloscope is also connected with switching power supply, for detecting its harmonic and ripple data, and data is transmitted to host computer.
[0010] Preferably, the incoming line power supply circuit is also electrically connected with indicating lamp PL1.
[0011] Therefore, the utility model adopts the above structure of a kind of high-frequency power supply detection device, with following beneficial effects:
[0012] (1) by integrating current transformer, multifunction meter and virtual oscilloscope and other various detection tools, the output voltage of high-frequency switching power supply, current, incoming line voltage and current, various power parameters and harmonic ripple data can be detected simultaneously, compared with traditional single detection means, the comprehensiveness of detection is greatly improved, the performance state of high-frequency switching power supply can be reflected in all directions, and rich data basis is provided for accurately evaluating power quality.
[0013] (2) In the hardware design, the selection and connection mode of each component fully consider the characteristics of high frequency signal, such as the high frequency response capability of the virtual oscilloscope and the anti-interference measures in the circuit, so that it can accurately capture and process the complex signal of high frequency switching power supply, effectively overcome the problem that the traditional detection method is difficult to adapt to the high frequency working characteristics, and ensure the reliability and accuracy of the detection result.
[0014] (3) With the centralized control function of the upper computer, the operator can realize the control of the whole detection process through a simple operation interface, including the setting of the high frequency switching power supply parameters, the adjustment of the load state and the start and stop of the detection process. At the same time, the automatic data transmission and processing flow between each component reduces the manual intervention link, significantly improves the detection efficiency, and reduces the operation difficulty and labor cost.
[0015] The technical scheme of the utility model will be further described in detail below by means of the drawings and embodiments. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a circuit structure schematic view of the utility model high frequency power supply detection device. DETAILED DESCRIPTION
[0017] The technical scheme of the utility model will be further described in detail below by means of the drawings and embodiments.
[0018] Unless otherwise defined, the technical terms or scientific terms used in the utility model should be understood as the usual meaning understood by the person skilled in the art to which the utility model belongs. The "first", "second" and similar words used in the utility model do not represent any order, quantity or importance, but are only used to distinguish different components. "Include" or "contain" and similar words mean that the elements or objects before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connection" or "connected" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0019] EMBODIMENT
[0020] As Figure 1The utility model provides a kind of high-frequency power detection device, mainly by incoming line power supply circuit, control circuit, switching power supply circuit, load, data interface circuit, current transformer, multifunction meter, virtual oscilloscope, relay control module and host computer etc. Part constitutes. Form a complete detection system between each part by electrical connection and communication bus, realize the detection and control of high-frequency switching power supply multiple performance.
[0021] Incoming line power supply circuit uses AC380V+N+P incoming line power supply to provide three-phase ac power input. The power supply is first connected to fuse element GF1, GF1 is used for overload and short-circuit protection of the circuit, to prevent damage to the subsequent circuit due to abnormal current.
[0022] After GF1, the power supply is connected to the line-changing copper bar TA1, TA2 and TA3, and power distribution to different components is realized through the line-changing copper bar to ensure that each part of the circuit obtains stable power supply. At the same time, the circuit is also electrically connected with the indicator light PL1, which can be used to display the working state of the incoming line power supply circuit, such as whether the power supply is normally connected, etc., to facilitate the operator to make preliminary circuit state judgment.
[0023] The control circuit takes the host socket RBCP1 as the core, and is connected to the incoming line power supply circuit through switches SB1, SB2, relays J13 and J14. The operator can control the working state of relays J13 and J14 by operating switches SB1 and SB2, and then realize the partial control function of the entire circuit, such as starting or stopping some specific detection process or equipment, which provides a manual control means for the operation of the entire detection device and enhances the flexibility of device operation.
[0024] The relay control module is composed of relays JC1, JC2, JC3, JC4 and corresponding parallel resistors. Resistors R1 and R2 connected in parallel with relay JC1, resistors R3 and R4 connected in parallel with JC2, resistors R5 and R6 connected in parallel with JC3, and resistors R7 and R8 connected in parallel with JC4 play the role of stabilizing the working state of the relay, limiting the current, etc. These relays play an important role in signal switching and control in the entire device, for example, they can control the access or disconnection of different loads according to the instructions of the host computer, realize precise control of the working state of the load, and meet the adjustment requirements of high-frequency switching power supply load in different test scenarios.
[0025] The data interface circuit is electrically connected to the relay control module on one hand to transmit control signals and receive status feedback signals from the relay control module; on the other hand, it is connected to the switching power supply circuit via the CAN bus to communicate with the switching power supply circuit and transmit data such as control commands and status information, ensuring that the switching power supply circuit works in coordination with other parts to achieve effective detection and control of the high-frequency switching power supply.
[0026] Current transformers and multifunction meters work closely together to detect important parameters of high-frequency switching power supplies, such as output voltage, output current, input voltage, input current, apparent power, active power, reactive power, and power factor. The current transformer is responsible for collecting current signals, while the multifunction meter performs comprehensive processing and analysis on the collected current and voltage signals to derive various parameters such as power and power factor.
[0027] After the test is completed, the multifunction meter is electrically connected to the switching power supply circuit via the RS485 communication module to transmit the detected data to the host computer. The RS485 communication module features long transmission distance and strong anti-interference capability, ensuring stable and accurate data transmission to the host computer, providing a reliable data source for subsequent data processing and analysis.
[0028] The virtual oscilloscope connects to the switching power supply and is specifically designed to detect harmonic and ripple data in high-frequency switching power supplies. It features high-frequency response and high-precision data acquisition capabilities, accurately capturing harmonic and ripple signals in the high-frequency switching power supply. After testing, this data is transmitted to a host computer via a communication line. The host computer can then use this data to further analyze the power quality and stability of the high-frequency switching power supply, providing crucial information for power supply performance evaluation.
[0029] The host computer, as the core hub of the entire device, connects to the high-frequency switching power supply via a CAN bus, enabling bidirectional data exchange. On one hand, the host computer can send parameter setting commands to the high-frequency switching power supply to precisely control its operating parameters, such as output voltage and current. On the other hand, the host computer receives status data from the high-frequency switching power supply to monitor its operating status in real time.
[0030] The host computer receives data from components such as current transformers, multi-function meters, and virtual oscilloscopes, and integrates and processes this data. Through built-in data analysis algorithms and software modules, it comprehensively analyzes the collected data and automatically generates a test report. This report details the various test parameters and performance evaluation results of the high-frequency switching power supply, providing users with comprehensive and intuitive power supply test information. This facilitates users' judgment and analysis of the high-frequency switching power supply's performance and helps with subsequent maintenance and improvement work.
[0031] The plurality of relays are used to connect the plurality of loads, and the plurality of relays are precisely controlled by the host computer.
[0032] The line-changing copper bar is connected with the incoming cables of the plurality of high-frequency switching power supplies, and the design of the line-changing copper bar enables the device to conveniently switch between different high-frequency switching power supplies for detection.
[0033] Therefore, the high-frequency power supply detection device has good adaptability and can well adapt to the high-frequency characteristics of the high-frequency switching power supply, thereby ensuring the reliability of the detection results.
[0034] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the utility model and not to limit them, although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that: the technical solutions of the utility model can still be modified or replaced, and these modifications or replacements cannot make the modified technical solutions deviate from the spirit and scope of the utility model technical solutions.
Claims
1. A high-frequency power supply detection device, characterized in that: The input power supply circuit is electrically connected with the control circuit, the switching power supply circuit, the load, the data interface circuit, the current transformer, the multifunction meter and the virtual oscilloscope respectively.
2. The high-frequency power supply detection device according to claim 1, characterized by: The input power supply in the input power supply circuit is AC380V+N+P, providing three-phase alternating current power input, and is connected to the line-changing copper bars TA1, TA2 and TA3 through the fuse element GF1 for overload and short circuit protection.
3. The high-frequency power supply detection device according to claim 1, characterized by: The control circuit comprises a host socket RBCP1 connected to the input power supply circuit through the switch SB1, the switch SB2, the relay J13 and the relay J14.
4. The high-frequency power supply detection device according to claim 1, characterized by: The relay control module is composed of the relay JC1, the relay JC2, the relay JC3, the relay JC4, the resistor R1 and the resistor R2 connected in parallel to the relay JC1, the resistor R3 and the resistor R4 connected in parallel to the relay JC2, the resistor R5 and the resistor R6 connected in parallel to the relay JC3, and the resistor R7 and the resistor R8 connected in parallel to the relay JC4.
5. The high frequency power supply detection device of claim 1, wherein: The virtual oscilloscope is also connected with the switching power supply for detecting the harmonic and ripple data of the switching power supply and transmitting the data to the upper computer.
6. The high frequency power supply detection device of claim 1, wherein: The input power supply circuit is also electrically connected with an indicator light PL1.