Calibration device and calibration equipment
The calibration device is used to calibrate the current plate, which solves the problem of high calibration cost in the existing technology and reduces chip testing cost and equipment damage risk.
Patent Information
- Application Number
- CN202423025613.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-12-06
AI Technical Summary
In existing technologies, the calibration of the current plate in chip testing requires the use of a precision current plate, which results in high testing costs and easy equipment damage.
A calibration device is used to calibrate a common current board, including a first power supply interface, a control module, a calibration module, a current adjustment module, and a precision current measurement module. Calibration is performed by calculating the current difference, thereby reducing costs.
By using calibrated current plates for chip testing, procurement and testing costs are reduced, while the risk of equipment damage is also decreased.
Smart Images
Figure CN223784485U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of current plate calibration, in particular to a calibration device and a calibration equipment. BACKGROUND
[0002] In chip testing, the current needs to be monitored, in order to ensure the accuracy of current monitoring, the current plate needs to be calibrated before being put into use.
[0003] Since the number of chips out of the factory is large, and the price of the precision current plate is high, if all the precision currents are used for testing, the cost of testing will be increased. CONTENT OF THE UTILITY MODEL
[0004] The purpose of the present application is to provide a calibration device and a calibration equipment, so as to reduce the detection cost.
[0005] The present application discloses a calibration device for calibrating a current plate, which comprises a first power supply interface, a second power supply interface, a control module, a calibration module, a current adjusting module, a precision current measuring module and a resistance module; the current adjusting module, the resistance module, the precision current measuring module and the calibration module are connected in sequence; the control module is connected with the precision current measuring module, the current adjusting module and the calibration module respectively;
[0006] One end of the first power supply interface is connected with the current adjusting module, and the other end of the first power supply interface is connected with a power supply, and the current adjusting module is used for outputting a preset current value; one end of the second power supply interface is connected with the calibration module and the control module respectively, and the other end of the second power supply interface is connected with a power supply, which is used for supplying power for the calibration module and the control module.
[0007] Optionally, the calibration module comprises a calibration unit and at least one group of detection ports, the calibration unit is connected with the detection ports and the control module respectively, the current adjusting module, the resistance module, the precision current measuring module and the detection ports are connected in sequence, the detection port group is used for inserting the current plate to be calibrated, and the calibration unit is used for receiving the control instruction generated by the control module and performing calibration operation on the current plate.
[0008] The calibration device further comprises a built-in battery module, the built-in battery module is connected with the calibration unit and the control module respectively, the built-in battery module is used for supplying power for the calibration unit and the control module, and the second power supply interface is further connected with the built-in battery module, so that the second power supply interface can be used for connecting the power supply to charge the built-in battery module.
[0009] Optionally, the calibration module is configured to plug in a current plate to be calibrated; the control module is configured to obtain and calculate a difference between a current value of the current plate and a current value of the precision current measurement module, and send a control instruction to the calibration module to perform a calibration operation on the current plate.
[0010] Optionally, the calibration device further comprises a serial port connector connected to the control module, the serial port connector being configured to connect to a host device to read and write information.
[0011] Optionally, the calibration device further comprises a wireless transceiver module connected to the control module, configured to connect to a host device.
[0012] Optionally, the calibration device further comprises a data storage module connected to the control module, configured to store calibration data.
[0013] Optionally, the calibration device further comprises a first indicator light, a second indicator light and a third indicator light, each of the first indicator light, the second indicator light and the third indicator light being connected to the calibration module, the current regulation module and the precision current measurement module, respectively.
[0014] Optionally, the calibration device comprises a main circuit board and an open box body, the main circuit board being covered on an opening of the open box body, the first power supply interface, the second power supply interface, the control module, the current regulation module, the precision current measurement module, the resistance module and the calibration unit being arranged on the main circuit board.
[0015] Optionally, the detection port group comprises a first group of detection ports and a second group of detection ports, each of the first group of detection ports and the second group of detection ports being connected to the current regulation module, the precision current measurement module and the resistance module; the first group of detection ports being arranged on the main circuit board, and the second group of detection ports being arranged on an outer surface of the open box body.
[0016] The application further discloses a calibration device, comprising a host device and a calibration device, the host device being connected to the calibration device.
[0017] Compared with the prior calibration method using a precision current plate, the current plate is calibrated by the calibration device, and then the calibrated current plate can be used to test the chip. Since the cost of the current plate is lower than that of the precision current plate, more precision current plates do not need to be purchased for testing the chip, thereby reducing the purchase cost. Moreover, since the chip may be damaged during testing, the calibrated current plate can be used for testing, which is lower than the precision current module, thereby reducing the testing cost. BRIEF DESCRIPTION OF DRAWINGS
[0018] The accompanying drawings, which are included to provide a further understanding of the embodiments of the application and constitute a part of the specification, illustrate the embodiments of the application and together with the text description serve to explain the principles of the application. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor. In the drawings:
[0019] Figure 1 is a schematic diagram of a calibration device according to an embodiment of the application;
[0020] Figure 2 is a schematic diagram of a calibration device according to an embodiment of the application;
[0021] Figure 3 is a schematic diagram of a calibration device according to an embodiment of the application;
[0022] Figure 4 is a schematic diagram of an open box according to an embodiment of the application.
[0023] In the drawings: 10, calibration device; 20, host device; 30, calibration device; 100, first power supply interface; 110, second power supply interface; 120, control module; 130, calibration module; 131, calibration unit; 132, detection port group; 132A, first group of detection ports; 132B, second group of detection ports; 140, current adjustment module; 150, precision current measurement module; 160, resistance module; 170, built-in battery module; 200, calibration button module; 210, physical button; 211, start calibration button; 212, reset button; 220, display touch screen; 230, serial port connector; 240, wireless transceiver module; 250, data storage module; 261, first indicator light; 262, second indicator light; 263, third indicator light; 300, main circuit board; 400, open box. DETAILED DESCRIPTION
[0024] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; that the specific
[0025] In the description of the present application, the terms "first", "second", "third", etc. are used only for the purpose of description, and are not to be interpreted as indicating relative importance or implying that the indicated technical features are limited to a certain number. Thus, unless otherwise specified, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features; the meaning of "a plurality" is two or more. The term "comprising" and any variation thereof means "including but not limited to" and can have one or more other features, integers, steps, operations, units, components and / or combinations thereof.
[0026] In addition, the terms indicating the orientation or positional relationship of "center", "transverse", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are described based on the orientation or relative position relationship shown in the drawings, and are only for the convenience of the simplified description of the present application, and do not indicate that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.
[0027] In addition, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0028] The present application will be described in detail below with reference to the accompanying drawings and optional embodiments.
[0029] Figure 1 is a schematic view of a calibration device according to an embodiment of the present application, as Figure 1 The present application discloses a calibration device 10, which comprises a host device 20 and a calibration device 30, wherein the host device 20 is connected with the calibration device 30.
[0030] The present application mainly improves the calibration device 30, which can be used in the calibration device 10 described above. For the calibration device 30, the present application provides the following design:
[0031] Figure 2 is a schematic view of a calibration device according to an embodiment of the present application, asFigure 2 As shown, the application discloses a calibration device 30 for calibrating a current plate, which comprises a first power supply interface 100, a second power supply interface 110, a control module 120, a calibration module 130, a current adjusting module 140, a precision current measuring module 150 and a resistance module 160; the current adjusting module 140, the resistance module 160, the precision current measuring module 150 and the calibration module 130 are sequentially connected; the control module 120 is connected with the precision current measuring module 150, the current adjusting module 140 and the calibration module 130 respectively.
[0032] One end of the first power supply interface 100 is connected with the current adjusting module 140, and the other end of the first power supply interface 100 is used for connecting a power supply, and the current adjusting module 140 is used for outputting a preset current value; one end of the second power supply interface 110 is connected with the calibration module 130 and the control module 120 respectively, and the other end of the second power supply interface 110 is used for connecting a power supply, and is used for supplying power for the calibration module 130 and the control module 120.
[0033] The calibration module 130 is used for plugging the current plate to be calibrated; the control module 120 is used for acquiring and calculating the difference between the current value of the current plate and the current value of the precision current measuring module 150, and sending a control instruction to the calibration module 130 to perform a calibration operation on the current plate.
[0034] The current plate to be calibrated is plugged on the detection port 132, the control module 120 sends a control instruction to the current adjusting module 140, the current adjusting module 140 outputs a plurality of preset voltage values, such as 50V, 150V and 300V, then detects the current values displayed on the precision current measuring module 150 and the current values displayed on the current plate through the control module 120, calculates the difference between the two current values, and then sends a control instruction to the calibration unit 131, so that the calibration unit 131 calibrates the current plate.
[0035] Compared with the existing calibration method using a precision current plate, the current plate is calibrated by the calibration device 30, and then the calibrated current plate can be used to test the chip. Since the cost of the current plate is lower than that of the precision current plate, more precision current plates do not need to be purchased for testing the chip, so that the purchase cost can be reduced. Moreover, since the chip may be damaged during testing, the use of the calibrated current plate for testing can reduce the detection cost compared with the use of the precision current module for testing.
[0036] The control module 120 can also be configured to send control instructions to the current adjusting module 140, for example, sending a control instruction to the current adjusting module 140 to start outputting a first preset current, and sending a control instruction to the current adjusting module 140 to start outputting a second preset current.
[0037] The calibration module 130 comprises a calibration unit 131 and at least one set of detection ports 132, the calibration unit 131 is connected with the detection ports 132 and the control module 120 respectively, the current adjusting module 140, the resistance module 160, the precision current measuring module 150 and the detection ports 132 are connected in sequence, and the detection port set 132 is used for plugging the current plate to be calibrated. The calibration unit 131 is configured to receive the control instruction generated by the control module 120 and perform calibration operation on the current plate.
[0038] The calibration device 30 further comprises a data storage module 250 connected with the control module 120, used for storing calibration data, for example, the current value of the precision current measuring module 150, the current value of the current plate to be calibrated, etc. Thus, when the current plate is calibrated outside, the calibration data can be stored at any time without relying on external equipment, and the data can be exported through USB or wireless transmission after returning to the laboratory, so as to further analyze and process the calibration data. Thus, the convenience of the current plate calibration device 10 is improved.
[0039] Figure 3 is a structural schematic view of a calibration device according to an embodiment of the present application, which is combined with Figures 2-3 As shown in the figure, the calibration device 30 comprises a main circuit board 300 and an open box body 400, the main circuit board 300 covers the opening of the open box body 400, and the first power supply interface 100, the second power supply interface 110, the control module 120, the current adjusting module 140, the precision current measuring module 150, the resistance module 160 and the calibration unit 131 are all arranged on the main circuit board 300.
[0040] The present application integrates the first power supply interface 100, the second power supply interface 110, the control module 120, the current adjusting module 140, the precision current measuring module 150, the resistance module 160 and the calibration unit 131 together, which reduces the circuit connection distance between different modules, avoids the loss of current on the circuit, and improves the calibration accuracy.
[0041] Figure 4 is a schematic view of an open box body according to an embodiment of the present application, which is combined with Figure 4As shown, the application sets two groups of detection ports 132, specifically the detection ports 132 include a first group of detection ports 132A and a second group of detection ports 132B, the first group of detection ports 132A and the second group of detection ports 132B are connected with the current adjusting module 140, the precise current measuring module 150 and the resistance module 160; the first group of detection ports 132A is arranged on the main circuit board 300, and the second group of detection ports 132B is arranged on the outer surface of the open box body 400.
[0042] In order to further improve the calibration efficiency, the application sets two groups of detection ports 132, that is, the first group of detection ports 132A and the second group of detection ports 132B, and then sets the first group of detection ports 132A on the main circuit board 300 and sets the second group of detection ports 132B on the outer surface of the open box body 400, so that the area of the main circuit board 300 does not need to be increased, and the volume of the whole current board calibration device 10 can be reduced.
[0043] In combination Figure 2 And Figure 3 As shown, the calibration device 30 further includes a built-in battery module 170, the built-in battery module 170 is connected with the calibration unit 131 and the control module 120 respectively, the built-in battery module 170 is used to power the calibration unit 131 and the control module 120, and the second power supply interface 110 is also connected with the built-in battery module 170, and the second power supply interface 110 can also be used to connect a power supply to charge the built-in battery module 170.
[0044] Since the power consumption of the control module 120 and the calibration unit 131 is small, by setting a built-in battery module 170 to power the control module 120 and the calibration unit 131, the second power supply interface 110 does not need to be plugged into the power supply all the time, and the convenience of use can be further improved.
[0045] The calibration device 30 further includes a serial port connector 230, the serial port connector 230 is connected with the control module 120, and the serial port connector 230 is used to connect with the host device 20 to read and write information. In this way, the control program code can be written into the control module 150 through the serial port connector 230, and the calibration information in the data storage module 250 can also be read through the serial port connector 230 and the control module 120 to analyze the calibration information.
[0046] The calibration device 30 further includes a calibration key module 200, the calibration key is connected with the control module 120; the calibration key module 200 includes a physical key 210 and / or a display touch screen 220.
[0047] The entity key 210 module includes a start calibration key 211 and a reset key 212, both of which are connected with the control module 120, the start calibration key 211 is used to control the control module 120 to start working, and the reset key 212 is used to control the control module 120 to stop working.
[0048] Of course, a display touch screen 220 can also be provided, which is connected with the control module 120, and the display touch screen 220 can display the start calibration key 211 and the reset key 212, and can also display other information, such as a calibration progress bar, a calibration result, a current value displayed on the precision current measurement module 150, and a current value displayed on the current plate, etc.
[0049] Further, a wireless transceiver module 240 can also be provided on the calibration device 30, which is connected with the control module 120 and used to connect the host device 20. In this way, the control module 120 can be controlled by a mobile device to realize remote calibration work.
[0050] Furthermore, the first indicator light 261, the second indicator light 262 and the third indicator light 263 are provided on the calibration device 30, which are respectively connected with the calibration module 130, the current adjustment module 140 and the precision current measurement module 150. For example, the first indicator light 261, the second indicator light 262 and the third indicator light 263 are respectively used to remind the user whether the calibration module 130, the current adjustment module 140 and the precision current measurement module 150 can work normally, so as to quickly locate the problem when the calibration device 30 cannot work.
[0051] Specifically, the calibration operation steps of the present application are as follows: inserting the current plate to be calibrated into the detection port 132, connecting the current adjustment module 140 through the first power supply interface 100; then pressing the start calibration key 211, the control module 120 sends a control instruction to the current adjustment module 140, and the current adjustment module 140 starts to output a plurality of preset current values; then the control module 120 acquires the current values displayed on the precision current measurement module 150 and the current plate, and calculates the difference between the two current values, and then sends a control instruction to the calibration unit 131, which calibrates the circuit board, and completes the calibration step.
[0052] It should be noted that the definition of each step involved in the present scheme does not limit the order of the steps without affecting the implementation of the specific scheme. The steps written in the front can be executed first, or executed later, or even executed simultaneously, as long as the scheme can be implemented, it should be considered to belong to the protection scope of the present application.
[0053] It should be noted that the inventive concept of the present application can form a very large number of embodiments, but the length of the application file is limited and cannot be listed one by one, therefore, on the premise of not conflicting, the above described various embodiments or technical features can be combined to form new embodiments, and the combination of each embodiment or technical feature will enhance the original technical effect.
[0054] The above is a further detailed description of the present application in combination with specific optional embodiments, which cannot be considered as limiting the specific implementation of the present application. For ordinary skilled persons in the art to which the present application belongs, without departing from the concept of the present application, a number of simple deductions or substitutions can be made, which should be considered to belong to the protection scope of the present application.
Claims
1. A calibration device, characterized by The utility model provides a calibration device for calibrating current plate, the calibration device includes first power supply interface, second power supply interface, control module, calibration module, current regulation module, precision current measurement module and resistance module, current regulation module, resistance module, precision current measurement module and calibration module are connected in proper order, control module is connected with precision current measurement module, current regulation module and calibration module respectively, One end of first power supply interface is connected with current regulation module, the other end of first power supply interface is connected with power supply, and current regulation module is used for outputting preset current value, One end of second power supply interface is connected with calibration module and control module respectively, the other end of second power supply interface is connected with power supply, and is used for the power supply of calibration module and control module, Calibration module is used for inserting the current plate to be calibrated, control module is used for obtaining and calculating the difference between the current value of current plate and the current value of precision current measurement module, and sends control instruction to calibration module to carry out calibration operation to current plate.
2. The calibration device of claim 1, wherein, Calibration module includes calibration unit and at least one group of detection port, calibration unit is connected with detection port and control module respectively, current regulation module, resistance module, precision current measurement module and detection port are connected in proper order, and detection port group is used for inserting the current plate to be calibrated, and calibration unit is used for receiving the control instruction of control module and carries out calibration operation to current plate.
3. The calibration device of claim 1, wherein, The calibration device further includes a calibration key module, the calibration key is connected with the control module, and the calibration key module includes a physical key and / or a display touch screen.
4. The calibration device of claim 2, wherein, The calibration device further includes a built-in battery module, the built-in battery module is connected with the calibration unit and the control module respectively, the built-in battery module is used for power supply of the calibration unit and the control module, and the second power supply interface is further connected with the built-in battery module, and the second power supply interface can also be used for connecting the power supply to charge the built-in battery module.
5. The calibration device of claim 1, wherein, The calibration device further includes a wireless transceiver module connected with the control module for connecting a host device.
6. The calibration device of claim 1, wherein, The calibration device further includes a data storage module connected with the control module for storing calibration data.
7. The calibration device of claim 1, wherein, The calibration device further includes a first indicator light, a second indicator light, and a third indicator light, each of the first, second, and third indicator lights is connected with the calibration module, the current regulation module, and the precision current measurement module, respectively.
8. The calibration device of claim 2, wherein, The calibration device includes a main circuit board and an open box body, the main circuit board covers the opening of the open box body, and the first power supply interface, the second power supply interface, the control module, the current regulation module, the precision current measurement module, the resistance module, and the calibration unit are arranged on the main circuit board.
9. The calibration device of claim 8, wherein, The detection port group comprises a first group of detection ports and a second group of detection ports, and the first group of detection ports and the second group of detection ports are connected with the current adjusting module, the precise current measuring module and the resistance module; the first group of detection ports is arranged on the main body circuit board, and the second group of detection ports is arranged on the outer surface of the open box body.
10. A calibration device, characterized by The calibration device comprises a host device and the calibration device as claimed in any one of claims 1-9, and the host device is connected with the calibration device.