Power amplifier board test equipment
By designing the amplifier board test equipment, using base, pressure plate components, circuit components and radio frequency components, the problem of incomplete testing in the existing technology is solved, and a comprehensive performance test of the amplifier board is achieved, including waveform, low power and high power output Accurate debugging ensures the accuracy and consistency of test results.
Patent Information
- Application Number
- CN202420753276.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-12
AI Technical Summary
The existing amplifier board test fixtures are not comprehensive, and inconsistent connections lead to performance testing errors, and comprehensive amplifier board channel waveform and high-power output debugging are not possible.
A power amplifier board testing equipment is designed, including base, pressure plate assembly, circuit assembly and radio frequency component. The fixed space and buttons on the base realize stable fixing and connection between the power amplifier motherboard and plug board. The circuit assembly and test display component are used for display. Test results, RF components are used for high power output testing and detailed performance testing is achieved through adjustable resistors and test probes.
A comprehensive test of the performance of the amplifier board is achieved, including debugging of front-end voltage, low-power output and high-power output, ensuring the accuracy and consistency of the test results, covering test items that have not been achieved in the prior art.
Smart Images
Figure CN222259507U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a testing fixture, in particular to a power amplifier board testing device. Background Art
[0002] A test fixture is a fixture specially used to test and experiment the function, power calibration, life, performance, etc. of a product.
[0003] In the prior art, users usually fix the power amplifier board on the test fixture and choose to use the test probe to connect the power amplifier board, so that the power amplifier board is connected to the test circuit, so as to reflect the performance of the power amplifier board through data such as current and voltage. However, the items tested by the fixture in the prior art are not comprehensive, and some items need to be tested in other different ways. For example, the channel waveform test of the power amplifier board needs to be tested by an oscilloscope, and the high-power output debugging of the power amplifier board requires radio frequency as a condition.
[0004] In addition, existing fixtures do not provide consistent connections between the test probes and the amplifier board, and physical errors in the container result in errors in the tested performance. Utility Model Content
[0005] In order to achieve at least one of the above advantages of the utility model, the utility model provides a power amplifier board testing device for testing the performance of the power amplifier board, the power amplifier board includes a power amplifier main board and a power amplifier plug-in board, the power amplifier main board has six main board channels, the power amplifier plug-in board has at least one adjustable resistor, the power amplifier board testing device includes
[0006] The fixture body includes:
[0007] A base, wherein a first fixing space and a second fixing space are formed on an upper surface of the base, wherein the first fixing space is used to fix the power amplifier mainboard, and the second fixing space is used to fix the power amplifier plug-in board. Six buttons are arranged on the surface of the base, and the buttons correspond to the mainboard channels one by one. When the power amplifier mainboard is connected to the circuit, a user can connect an oscilloscope to the power amplifier board test device and press the buttons corresponding to the mainboard channels, so that the test results are displayed on the oscilloscope;
[0008] A pressure plate assembly, the pressure plate assembly is fixed to the upper surface of the base, and the pressure plate assembly includes at least one pressure plate, the pressure plate can be pressed above the power amplifier mainboard and the power amplifier plug-in board and make the power amplifier mainboard and the power amplifier plug-in board connected in a circuit, and the base has an installation space;
[0009] A circuit assembly, wherein the circuit assembly can be installed in the installation space, and when the power amplifier main board and the power amplifier plug-in board are respectively fixed in the first fixing space and the second fixing space and pressed by the pressing plate assembly, the power amplifier board, the circuit assembly and the test display component are powered on;
[0010] A test display component, the test display component is electrically connected to the circuit assembly and the power amplifier board, so that the test result of the power amplifier board by the user is displayed on the test display component;
[0011] A radio frequency component is installed on the fixture body and can make the power amplifier board testing equipment enter a high-power state. The radio frequency component is used to test the high-power output performance of the power amplifier board.
[0012] According to one embodiment of the utility model, the circuit assembly includes a power supply, a power board, an MCU board, at least one adapter board and a cable adapter board, wherein the adapter board is installed below the pressure plate, and the adapter board has a plurality of test probes, and the test probes are arranged below the adapter board, so that when the pressure plate presses the power amplifier main board and the power amplifier plug-in board, the test probes connect the test points on the power amplifier main board and the power amplifier plug-in board, thereby connecting the power amplifier main board and the power amplifier plug-in board to the circuit, the power supply is electrically connected to the power board, the power board is electrically connected to the MCU board, the MCU board is electrically connected to the adapter board and the cable adapter board, and the cable adapter board is electrically connected to the test display component.
[0013] According to an embodiment of the utility model, a toggle switch is provided on the base, and toggling the toggle switch to the left corresponds to three of the six mainboard channels, and toggling the toggle switch to the right corresponds to the other three of the six mainboard channels.
[0014] According to an embodiment of the utility model, the power amplifier mainboard has a plurality of mainboard fixing holes, the power amplifier plug-in board has a plurality of plug-in board fixing holes, and the base has a plurality of limit columns, and the limit columns are arranged on the bottom wall forming the first fixed space and the second fixed space corresponding to the mainboard fixing holes and the plug-in board fixing holes, so that when the power amplifier mainboard and the power amplifier plug-in board are respectively placed in the first fixed space and the second fixed space, the limit columns pass through the mainboard fixing holes and the plug-in board fixing holes to fix the power amplifier mainboard and the power amplifier plug-in board.
[0015] According to one embodiment of the utility model, the pressure plate assembly also includes at least one mounting seat and at least one movable member, the mounting seat is fixed to the base, the movable member is mounted on the mounting seat so as to be movable up and down, and the movable member is arranged above the first fixed space and the second fixed space, and the pressure plate is installed below the movable member, so that the pressure plate can be driven by the movable member to move up and down, thereby pressing or releasing the power amplifier mainboard and the power amplifier plug-in board located in the first fixed space and the second fixed space.
[0016] According to an embodiment of the present invention, the pressing plate assembly further includes a plurality of elastic members, the elastic members are distributed below the pressing plate, and the elastic members are elastic.
[0017] According to an embodiment of the present invention, the circuit assembly includes a transformer, and the transformer is arranged to be electrically connected between the power supply and the power board.
[0018] According to an embodiment of the utility model, the power amplifier board testing device further includes a cooling assembly, the cooling assembly includes at least one fan, the fan is mounted on the base and is located below the power amplifier board, and the fan is electrically connected to the power supply.
[0019] According to one embodiment of the utility model, the cooling component also includes a thermostat, the fan and the thermostat are electrically connected, the thermostat can test the temperature in the circuit, and when the temperature rises to a predetermined value, the thermostat connects the power supply and the fan.
[0020] According to an embodiment of the utility model, the base is configured to be openable so that the installation space is connected to the outside. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 The schematic diagram of the structure of the power amplifier board testing device of the utility model is shown.
[0022] Figure 2 for Figure 1 A partial enlarged view of point A in the middle.
[0023] Figure 3 The schematic diagram of the structure of the power amplifier board testing device of the utility model in one state is shown.
[0024] Figure 4 for Figure 3 A partial enlarged view of point B in the middle.
[0025] Figure 5 A cross-sectional schematic diagram of the power amplifier board testing device of the utility model is shown.
[0026] Figure 6The circuit connection block diagram of the power amplifier board testing device of the utility model is shown. DETAILED DESCRIPTION
[0027] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the utility model.
[0028] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.
[0029] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.
[0030] refer to Figures 1 to 6 A power amplifier board testing device according to a preferred embodiment of the utility model will be described in detail below. The power amplifier board testing device is used to test the performance of a power amplifier board 90. The power amplifier board 90 includes a power amplifier main board 91 and a power amplifier plug-in board 92. The power amplifier plug-in board 92 has at least one adjustable resistor 921. The power amplifier board testing device connects the power amplifier main board 91 and the power amplifier plug-in board 92 to a circuit, and tests the performance of the power amplifier board 90 by adjusting the resistance of the adjustable resistor 921.
[0031] like Figures 1 to 4 As shown, the power amplifier board test equipment includes a fixture body 10, a circuit assembly 20, a test display component 30 and a radio frequency component 40, wherein the test display component 30 is electrically connected to the circuit assembly 20 and the power amplifier board 90, so that the test result of the power amplifier board 90 is displayed on the test display component 30. The radio frequency component 40 is installed on the fixture body 10 and can make the power amplifier board test equipment enter a high power state, and the radio frequency component 40 is used to test the high power output performance of the power amplifier board 90.
[0032] As an example, the test display component 30 is implemented as a display screen.
[0033] The fixture body 10 includes a base 11 and a pressure plate assembly 12, wherein the upper surface of the base 11 forms a first fixed space 1101 and a second fixed space 1102, the first fixed space 1101 is used to fix the power amplifier main board 91, and the second fixed space 1102 is used to fix the power amplifier plug-in board 92. The pressure plate assembly 12 is fixed to the upper surface of the base 11, and the pressure plate assembly 12 includes at least one pressure plate 121, and the pressure plate 121 can be pressed on the top of the power amplifier main board 91 and the power amplifier plug-in board 92 to connect the power amplifier main board 91 and the power amplifier plug-in board 92 in the circuit.
[0034] It is understandable that after the power amplifier main board 91 and the power amplifier plug-in board 92 are connected in the circuit, the user can debug and change the resistance value of the adjustable resistor 921 to change the current and voltage in the circuit, thereby completing the pre-arrangement of the test.
[0035] like Figure 5 As shown, the base 11 of the fixture body 10 has an installation space 1103, and the circuit assembly 20 can be installed in the installation space 1103, and when the power amplifier main board 91 and the power amplifier plug-in board 92 are respectively fixed in the first fixed space 1101 and the second fixed space 1102 and pressed by the pressure plate assembly 12, the power amplifier board 90, the circuit assembly 20 and the test display component 30 are energized, so that the user can test the performance of the power amplifier board 90 and display it on the test display component 30.
[0036] The power amplifier main board 91 has six main board channels 9101, and six buttons 111 are arranged on the surface of the base 11. The buttons 111 correspond one by one to the main board channels 9101. When the power amplifier main board 91 is connected to the circuit, the user can connect an oscilloscope 100 to the power amplifier board testing device and press the buttons 111 corresponding to the main board channels 9101, so that the test results are displayed on the oscilloscope 100, thereby completing the waveform test of the main board channels 9101.
[0037] Preferably, if Figure 2 and Figure 6As shown, the circuit assembly 20 includes a power supply 21, a power board 22, an MCU board 23, at least one adapter board 24 and a cable adapter board 25, wherein the adapter board 24 is installed below the pressure plate 121, and the adapter board 24 has a plurality of test probes 241, and the test probes 241 are arranged below the adapter board 24, so that when the pressure plate 121 presses the power amplifier main board 91 and the power amplifier plug-in board 92, the test probes 241 connect the test points on the power amplifier main board 91 and the power amplifier plug-in board 92, thereby connecting the power amplifier main board 91 and the power amplifier plug-in board 92 to the circuit.
[0038] The power supply 21 is electrically connected to the power board 22, the power board 22 is electrically connected to the MCU board 23, the MCU board 23 is electrically connected to the adapter board 24 and the cable adapter board 25, and the cable adapter board 25 is electrically connected to the test display component 30. In this way, when the power supply 21 is turned on, the current input by the power supply 21 passes through the power board 22 and then enters the MCU board 23, and then connects the power amplifier board 90 and the test display component 30 through the adapter board 24 and the cable adapter board 25 respectively to complete the power-on. At the same time, the user changes the resistance by changing the adjustable resistor 921 of the power amplifier board 92, thereby completing the test of the power amplifier board resistance value debugging.
[0039] It is worth mentioning that at least one knob is disposed on the surface of the adjustable resistor 921 , and the user adjusts the resistance value of the adjustable resistor 921 by rotating the knob.
[0040] It can be understood by those skilled in the art that, when the power amplifier main board 91 and the power amplifier plug board 92 are powered on, the user adjusts the adjustable resistor 921 to complete the resistance value debugging of the power amplifier plug board 92, and then displays the changes in current and voltage during debugging through the test display component 30, thereby completing the front-end voltage test, acquisition circuit debugging and low-power output debugging of the power amplifier board 90 in sequence. Afterwards, the user turns on the high-power state through the radio frequency component 40, thereby completing the high-power output debugging of the power amplifier board 90. At the same time, during the adjustment process of the adjustable resistor 921, the user can also perform power testing and impedance testing on the power amplifier board 90, that is, the power amplifier board testing equipment can accurately connect the test points on the power amplifier board 90 through the test probe 241, thereby performing a comprehensive test on the power amplifier board 90.
[0041] Preferably, a toggle switch 112 is provided on the base 11, and when the toggle switch 112 is toggled to the left, it corresponds to three of the six mainboard channels 9101, and when the toggle switch 112 is toggled to the right, it corresponds to the other three of the six mainboard channels 9101, thereby allowing the user to perform waveform testing on the mainboard channels 9101 from another perspective.
[0042] Preferably, the power amplifier main board 91 has a plurality of main board fixing holes 9102, the power amplifier plug-in board 92 has a plurality of plug-in board fixing holes 9201, the base 11 forms a plurality of limiting columns 111, and the limiting columns 111 are arranged on the bottom wall forming the first fixed space 1101 and the second fixed space 1102 corresponding to the main board fixing holes 9102 and the plug-in board fixing holes 9201, so that when the power amplifier main board 91 and the power amplifier plug-in board 92 are respectively placed in the first fixed space 1101 and the second fixed space 1102, the limiting columns 111 pass through the main board fixing holes 9102 and the plug-in board fixing holes 9201 to fix the power amplifier main board 91 and the power amplifier plug-in board 92.
[0043] Preferably, the pressure plate assembly 12 further comprises at least one mounting seat 122 and at least one moving member 123, wherein the mounting seat 122 is fixed to the base 11, and the moving member 123 is mounted on the mounting seat 122 so as to be movable up and down, and the moving member 123 is arranged above the first fixed space 1101 and the second fixed space 1102. The pressure plate 121 is mounted below the moving member 123, so that the pressure plate 121 can be driven by the moving member 123 to move up and down, thereby pressing or releasing the power amplifier mainboard 91 and the power amplifier plug-in board 92 located in the first fixed space 1101 and the second fixed space 1102.
[0044] As an example, the moving member 123 is implemented as a cylinder.
[0045] In another preferred embodiment, the moving member 123 is implemented as a quick clamp, so that the user can manually and quickly control the up and down movement of the pressing plate 121.
[0046] Preferably, the pressure plate assembly 12 further includes a plurality of elastic members 124, which are distributed below the pressure plate 121 and are elastic. When the pressure plate 124 presses against the power amplifier main board 91 and the power amplifier plug board 92, the elastic members 124 first contact the power amplifier main board 91 and the power amplifier plug board 92, so that the pressure on the power amplifier main board 91 and the power amplifier plug board 92 increases slowly, and the pressure directly provided by the pressure plate 124 is prevented from crushing the power amplifier main board 91 and the power amplifier plug board 92.
[0047] As an example, the elastic member 124 is implemented as an elastic column.
[0048] It is worth mentioning that, since the adjustable resistor 921 of the power amplifier board 92 is provided with a knob, the elastic member 124 and the pressing plate 121 are arranged to avoid the knob on the adjustable resistor 921 .
[0049] Preferably, the circuit assembly 20 includes a transformer 26, which is electrically connected between the power supply 21 and the power board 22, so that the voltage input to the power board 22 becomes smaller, thereby avoiding excessive voltage input to the power board 22.
[0050] As an example, the transformer 25 is implemented as a toroidal transformer.
[0051] Preferably, if Figure 4 As shown, the power amplifier board testing equipment also includes a cooling component 50, and the cooling component 50 includes at least one fan 51. The fan 51 is installed on the base 11 and is located below the power amplifier board 92. The fan 51 is electrically connected to the power supply 21 so that the fan 51 can start and cool the power amplifier board 92.
[0052] Preferably, the cooling assembly 50 also includes a thermostat 52, the fan 51 and the thermostat 52 are electrically connected, and the thermostat 52 can test the temperature in the circuit. When the temperature rises to a predetermined value, the thermostat 52 connects the power supply 21 and the fan 51, so that the fan 51 cools the power amplifier board 92.
[0053] Those skilled in the art can understand that when testing the performance of the power amplifier board 90, the circuit will generate heat energy. Under low power conditions, the heat energy is not high. However, when the user uses the RF component 40 to turn on high power to complete high-power output debugging of the power amplifier board 90, the temperature will rise, so it is necessary to turn on the fan 51 to cool the power amplifier board.
[0054] Preferably, the base 11 is configured to be openable so that the installation space 1103 is connected to the outside, so that when a problem occurs with the circuit assembly 20 , a user can open the base 11 to repair the circuit assembly 20 .
[0055] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.
Claims
1. A power amplifier board testing device, used to test the performance of a power amplifier board, the power amplifier board comprises a power amplifier main board and a power amplifier plug-in board, the power amplifier main board has six main board channels, the power amplifier plug-in board has at least one adjustable resistor, characterized in that: The power amplifier board testing equipment comprises The fixture body includes: A base, wherein a first fixing space and a second fixing space are formed on an upper surface of the base, wherein the first fixing space is used to fix the power amplifier mainboard, and the second fixing space is used to fix the power amplifier plug-in board. Six buttons are arranged on the surface of the base, and the buttons correspond to the mainboard channels one by one. When the power amplifier mainboard is connected to the circuit, a user can connect an oscilloscope to the power amplifier board test device and press the buttons corresponding to the mainboard channels, so that the test results are displayed on the oscilloscope; A pressure plate assembly, the pressure plate assembly is fixed to the upper surface of the base, and the pressure plate assembly includes at least one pressure plate, the pressure plate can be pressed above the power amplifier mainboard and the power amplifier plug-in board and make the power amplifier mainboard and the power amplifier plug-in board connected in a circuit, and the base has an installation space; A circuit assembly, wherein the circuit assembly can be installed in the installation space, and when the power amplifier main board and the power amplifier plug-in board are respectively fixed in the first fixing space and the second fixing space and pressed by the pressing plate assembly, the power amplifier board and the circuit assembly are powered on; A test display component, the test display component is electrically connected to the circuit assembly and the power amplifier board, so that the test result of the power amplifier board by the user is displayed on the test display component; A radio frequency component is installed on the fixture body and can make the power amplifier board testing equipment enter a high-power state. The radio frequency component is used to test the high-power output performance of the power amplifier board.
2. The power amplifier board testing device according to claim 1, characterized in that: The circuit assembly includes a power supply, a power board, an MCU board, at least one adapter board and a cable adapter board, wherein the adapter board is installed below the pressure plate, and the adapter board has a plurality of test probes, and the test probes are arranged below the adapter board, so that when the pressure plate presses the power amplifier main board and the power amplifier plug-in board, the test probes connect the test points on the power amplifier main board and the power amplifier plug-in board, thereby connecting the power amplifier main board and the power amplifier plug-in board to the circuit, the power supply is electrically connected to the power board, the power board is electrically connected to the MCU board, the MCU board is electrically connected to the adapter board and the cable adapter board, and the cable adapter board is electrically connected to the test display component.
3. The power amplifier board testing device according to claim 1, characterized in that: The base is provided with a toggle switch, and toggling the toggle switch to the left corresponds to three of the six mainboard channels, and toggling the toggle switch to the right corresponds to the other three of the six mainboard channels.
4. The power amplifier board testing device according to claim 1, characterized in that: The power amplifier main board has a plurality of main board fixing holes, the power amplifier plug-in board has a plurality of plug-in board fixing holes, and the base has a plurality of limiting columns, which are arranged on the bottom wall forming the first fixing space and the second fixing space corresponding to the main board fixing holes and the plug-in board fixing holes, so that when the power amplifier main board and the power amplifier plug-in board are respectively placed in the first fixing space and the second fixing space, the limiting columns pass through the main board fixing holes and the plug-in board fixing holes to fix the power amplifier main board and the power amplifier plug-in board.
5. The power amplifier board testing device according to claim 1, characterized in that: The pressure plate assembly also includes at least one mounting seat and at least one moving member, the mounting seat is fixed to the base, the moving member is mounted on the mounting seat so as to be movable up and down, and the moving member is arranged above the first fixed space and the second fixed space, and the pressure plate is installed below the moving member, so that the pressure plate can be driven by the moving member to move up and down, thereby pressing or releasing the power amplifier mainboard and the power amplifier plug-in board located in the first fixed space and the second fixed space.
6. The power amplifier board testing device according to claim 1, characterized in that: The pressing plate assembly further includes a plurality of elastic members, which are distributed below the pressing plate and are elastic.
7. The power amplifier board testing device according to claim 2, characterized in that: The circuit assembly includes a transformer, which is arranged to be electrically connected between the power source and the power board.
8. The power amplifier board testing device according to claim 2, characterized in that: The power amplifier board testing device further comprises a cooling assembly, wherein the cooling assembly comprises at least one fan, wherein the fan is mounted on the base and is located below the power amplifier board, and the fan is electrically connected to the power supply.
9. The power amplifier board testing device according to claim 8, characterized in that: The cooling assembly also includes a thermostat, the fan and the thermostat are electrically connected, the thermostat can test the temperature in the circuit, and when the temperature rises to a predetermined value, the thermostat connects the power supply and the fan.
10. The power amplifier board testing device according to claim 1, characterized in that: The base is configured to be openable so that the installation space is connected to the outside.