Multi-gear switching impedance converter

Abstract

The utility model relates to the technical field of electronic equipment, in particular to a multi-gear switching impedance converter, which comprises a transformer and a gear switching control board, the transformer comprises a ferrite manganese zinc magnetic ring, and the outer side of the ferrite manganese zinc magnetic ring is wrapped and wound by a plurality of turns of secondary coils. By means of the transformer, the gear switching control panel and other structures, impedance gears can be rapidly and reliably switched, the working stability in the complex magnetic field environment is improved, the design allows to output multiple sets of equal-amplitude isolation voltage signals, multiple series-parallel connection combinations of the secondary coil are achieved through flexible control of the relay array, and the reliability of the secondary coil is improved. Therefore, the output voltage and impedance are adjusted, the matching requirements of different loads are met, and the multi-gear switching impedance converter solves the problems of large equipment size, tedious installation, poor expansibility and low reliability caused by coexistence of a plurality of impedance converters in the prior art in an integrated mode.

Description

Technical Field

[0001] This utility model relates to the field of electronic equipment technology, specifically to a multi-level switching impedance converter. Background Technology

[0002] An impedance transformer is an electronic circuit element or system that plays a crucial role between a source and a load. It is responsible for matching the impedance between the signal source and the load to ensure the quality of signal transmission and processing.

[0003] If the impedance between the signal source and the load is mismatched, the signal transmission will be affected, which may lead to signal reflection, interference and noise. In some technologies, in order to achieve multi-voltage output, multiple impedance transformers are often used at the same time. This makes the equipment bulky, complicated to install, has poor expandability and low reliability. Therefore, in view of the above problems, a multi-voltage switching impedance transformer is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a multi-stage switching impedance converter to solve the problems of large equipment size, complicated installation, poor expandability and low reliability caused by the coexistence of multiple impedance converters in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A multi-stage switching impedance transformer includes a transformer and a stage switching control board. The transformer includes a ferrite manganese zinc magnetic ring, with multiple turns of secondary coil wrapped around its outer side. Terminals are fixedly connected to the ends of the secondary coils. A primary coil is wrapped around the outer side of the ferrite manganese zinc magnetic ring. The stage switching control board includes a PCB board. A CAN communication interface is located on the upper side of the PCB board. A minimum control unit is located behind the CAN communication interface on the upper side of the PCB board. A set of multiple PCB soldering terminals is located to the right of the minimum control unit on the upper side of the PCB board. A relay array is located on one side of the PCB soldering terminals on the upper side of the PCB board.

[0007] Preferably, the outer surface of the secondary coil is wrapped with a layer of high-temperature resistant insulating tape, the surface of which is in contact with the primary coil, and the primary coil is arranged around the outer side of the secondary coil.

[0008] Preferably, the secondary coil has multiple strands wound in parallel, and the wiring terminals and PCB soldering terminals are detachably connected by screws.

[0009] Preferably, the relay array consists of three relays on the left side and two relays on the right side.

[0010] Preferably, the CAN communication interface, the minimum control unit, and the relay array PCB soldering terminals are all electrically connected via a PCB board.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] In this invention, the transformer and range switching control panel are designed to improve the efficiency and stability of the transformer using ferrite manganese zinc magnetic rings. It also supports multiple voltage outputs within a single transformer. The multi-wire parallel winding of the secondary coil allows for multiple voltages of equal amplitude and mutual isolation to be obtained simultaneously on the transformer secondary, which is the foundation for multi-range switching. A relay array is used to achieve series and parallel combinations of voltages, flexibly adjusting the output voltage range and reducing hardware complexity. Switching the relay array through a minimum control unit enables fast and reliable switching of impedance ranges. CAN network communication enhances the system's anti-interference capability and compatibility, making control more precise and reliable, and improving operational stability in complex magnetic field environments. This design allows for the output of multiple sets of equal-amplitude isolated voltage signals, and through the flexible control of the relay array, various series and parallel combinations of the secondary coils are achieved, thereby adjusting the output voltage and impedance to meet the matching requirements of different loads. This integrated approach solves the problems of large device size, cumbersome installation, poor scalability, and low reliability caused by the coexistence of multiple impedance transformers in existing technologies. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the transformer structure of this utility model;

[0015] Figure 3 For this utility model Figure 2 Another perspective structural diagram;

[0016] Figure 4 This is a schematic diagram of the gear shifting control board of this utility model.

[0017] In the diagram: 1. Transformer; 11. Ferrite manganese zinc magnetic ring; 12. Secondary coil; 13. Terminal block; 14. High-temperature resistant insulating tape; 15. Primary coil; 2. Gear shifting control board; 21. PCB board; 22. CAN communication interface; 23. Minimum control unit; 24. Relay array; 25. PCB soldering terminal. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0020] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0021] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0022] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0023] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0024] Please see Figure 1-4 This utility model provides a technical solution:

[0025] A multi-stage switching impedance transformer includes a transformer 1 and a stage switching control board 2. The transformer 1 includes a ferrite manganese zinc magnetic ring 11, with multiple turns of secondary coil 12 wrapped around the outside of the ferrite manganese zinc magnetic ring 11. The ends of the secondary coil 12 are all fixedly connected to terminals 13. A primary coil 15 is wrapped around the outside of the ferrite manganese zinc magnetic ring 11. The stage switching control board 2 includes a PCB board 21. A CAN communication interface 22 is provided on the upper side of the PCB board 21. A minimum control unit 23 is provided on the upper side of the PCB board 21 behind the CAN communication interface 22. A group of multiple PCB soldering terminals 25 are provided on the upper side of the PCB board 21 to the right of the minimum control unit 23. A relay array 24 is provided on the upper side of the PCB board 21 to one side of the PCB soldering terminals 25.

[0026] The outer surface of the secondary coil 12 is wrapped with a layer of high-temperature resistant insulating tape 14. The surface of the high-temperature resistant insulating tape 14 is in contact with the primary coil 15, which is arranged around the outside of the secondary coil 12. This arrangement allows the high-temperature resistant insulating tape 14 to provide heat insulation for the secondary coil 12. The secondary coil 12 has multiple strands wound in parallel. The wiring terminal 13 and the PCB soldering terminal 25 are detachably connected by screws. This arrangement makes the electrical contact of the device reliable and the assembly more convenient. The relay array 24 consists of three relays on the left and two relays on the right. This arrangement allows the two relays on the right side of the relay array 24 to achieve a new series-parallel relationship when two or more are used simultaneously. In other words, the device can theoretically achieve multi-stage impedance transformer cascading. The CAN communication interface 22, the minimum control unit 23, and the PCB soldering terminal 25 of the relay array 24 are all electrically connected through the PCB board 21. This arrangement has the advantages of high integration, flexible wiring, and reliable electrical connection.

[0027] Workflow: The operation of the impedance transformer multi-stage switching is as follows. Note: When two or more relays on the right side of relay array 24 are used simultaneously in this solution, a new series-parallel relationship can be achieved, meaning this solution theoretically allows for multi-stage impedance transformer cascading. Startup and Initialization: After the device is powered on, the minimum control unit 23 begins initialization, checking the connection status of each component and preparing to receive external commands or signals. The CAN communication interface 22 is in standby mode, waiting for commands from the host computer or other CAN network devices. Receiving Commands: Through CAN network communication, the minimum control unit 23 of the stage switching control board 2 receives stage control information from the host computer. This information may include parameters such as the impedance stage to be switched to and the output voltage. Parsing Commands and Controlling Relays: The minimum control unit 23 parses the received CAN commands and, according to preset logic or algorithms, determines how to adjust the series-parallel combination of the secondary coil 12. Control signals are sent to relay array 24, indicating which relays should be engaged (closed) or disengaged (controlling the three relays on the left side of relay array 24 to engage or disengage, to achieve...). At this point, the four sets of equal amplitude voltage signals are fully connected in parallel (two series and one parallel, and fully series). The relays in the relay array 24 are responsible for changing the connection method of the secondary coil 12, thereby adjusting the impedance and voltage of the output circuit. Output adjustment: According to the state of the relays, the series and parallel combination of the secondary coil 12 changes, resulting in a corresponding adjustment of the impedance and voltage of the output circuit. Feedback and monitoring: During the adjustment process, the minimum control unit 23 continuously monitors the voltage, current, and other parameters of the output circuit to ensure that they are within a safe and stable range. If an abnormality is detected (such as overload, short circuit, etc.), the minimum control unit 23 will take emergency measures, such as cutting off the power supply or switching to a safe state, to protect the equipment and load. Continuous operation and readjustment: Once the required impedance and voltage level is reached, the equipment will continue to operate in this state until a new control command is received. If the output needs to be readjusted, the entire process will be repeated until the new requirements are met. This integrated approach solves the problems of large size, cumbersome installation, poor scalability, and low reliability caused by the coexistence of multiple impedance transformers in the prior art.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-stage switching impedance converter, comprising a transformer (1) and a stage switching control board (2), characterized in that: The transformer (1) includes a ferrite manganese zinc magnetic ring (11), and a secondary coil (12) with multiple turns is wrapped around the outside of the ferrite manganese zinc magnetic ring (11). The ends of the secondary coil (12) are all fixedly connected to terminals (13). The primary coil (15) is wrapped around the outside of the ferrite manganese zinc magnetic ring (11). The gear switching control board (2) includes a PCB board (21). A CAN communication interface (22) is provided on the upper side of the PCB board (21). A minimum control unit (23) is provided on the upper side of the PCB board (21) behind the CAN communication interface (22). A group of multiple PCB soldering terminals (25) is provided on the upper side of the PCB board (21) to the right of the minimum control unit (23). A relay array (24) is provided on the upper side of the PCB board (21) on one side of the PCB soldering terminals (25).

2. The impedance converter with multi-stage switching according to claim 1, characterized in that: The outer surface of the secondary coil (12) is wrapped with a layer of high-temperature resistant insulating tape (14), the surface of which is in contact with the primary coil (15), which is arranged around the outer side of the secondary coil (12).

3. The impedance converter with multi-stage switching according to claim 1, characterized in that: The secondary coil (12) has multiple strands wound in parallel, and the terminal block (13) and the PCB soldering terminal (25) are detachably connected by screws.

4. The impedance converter with multi-stage switching according to claim 1, characterized in that: The relay array (24) consists of three relays on the left and two relays on the right.

5. The impedance converter with multi-stage switching according to claim 1, characterized in that: The CAN communication interface (22), minimum control unit (23), relay array (24) and PCB soldering terminal (25) are all electrically connected through PCB board (21).

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