Low-cost PCB hardware version identification circuit
By designing a low-cost PCB hardware version identification circuit, which employs a power supply module, a sampling module, and a data acquisition module, combined with LED flashing to achieve version identification, the problem of complex circuits and high costs in existing technologies is solved, and the integration of identification and display is realized.
Patent Information
- Application Number
- CN202520292575.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-24
AI Technical Summary
The existing PCB hardware version has a complex identification circuit architecture, high cost, and the identification and display circuits cannot be implemented in the same circuit.
Design a low-cost PCB hardware version identification circuit. It adopts a power supply module, a sampling module, indicator lights, a 24V acquisition module and a 12V acquisition module to simplify the circuit architecture. The identification and display circuits are combined into one circuit, and the version identification is achieved by using LEDs to flash alternately.
It reduces the consumption of hardware resources, simplifies the circuit structure, reduces the cost of use, and integrates version identification and display.
Smart Images
Figure CN223784722U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of PCB hardware version identification, especially to a low -cost PCB hardware version identification circuit. BACKGROUND
[0002] Current PCB hardware version automatic identification circuit and version display circuit,
[0003] The current PCB version identification circuit architecture is complex, and the use cost is relatively high.
[0004] The current version identification circuit and version at least circuit cannot be realized in the same circuit.
[0005] In summary, the hardware version identification architecture is complex, and the version display circuit and the identification circuit cannot be realized in the same circuit. UTILITY MODEL CONTENTS
[0006] The utility model aims at at least one of the technical problems in the related art to some extent.
[0007] Therefore, the utility model provides a low -cost PCB hardware version identification circuit, simplifies the hardware version identification circuit architecture and reduces the use cost, realizes the identification and version display circuit in the same circuit, and reduces the occupation of hardware resources.
[0008] To achieve the above object, the utility model provides a low -cost PCB hardware version identification circuit, including power supply module, sampling module, pilot lamp, 24V acquisition module and 12V acquisition module, wherein, the power supply module electric nature output connects the sampling module, the sampling module electric nature output connects the pilot lamp, the sampling module electric nature output connects the 24V acquisition module, the sampling module electric nature output connects the 12V acquisition module.
[0009] The low -cost PCB hardware version identification circuit of the utility model simplifies the hardware version identification circuit architecture and reduces the use cost, realizes the identification and version display circuit in the same circuit, and reduces the occupation of hardware resources.
[0010] In addition, the low -cost PCB hardware version identification circuit provided in the above application can have the following additional technical features:
[0011] Specifically, the sampling module includes a first sampling unit, a second sampling unit, a third sampling unit and a fourth sampling unit, wherein the first sampling unit is electrically connected to the power supply module, the second sampling unit is electrically connected to the power supply module, the third sampling unit is electrically connected to the first sampling unit, and the fourth sampling unit is electrically connected to the second sampling unit.
[0012] Specifically, the first sampling unit and the third sampling unit are 24V voltage division sampling resistors.
[0013] Specifically, the second sampling unit and the fourth sampling unit are 12V voltage division sampling resistors.
[0014] Specifically, one group of the indicator lights and the 24V sampling module are provided with a back sampling current limiting resistor, and another group of the indicator lights and the 12V sampling module are provided with a sampling current limiting resistor.
[0015] Specifically, the indicator lights are two groups, and the two groups of the indicator lights are LED lights.
[0016] The additional aspects and advantages of the present application will be partially given in the following description, some will become apparent from the following description, or will be understood by the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS
[0017] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
[0018] Figure 1 is a system block diagram of the present application;
[0019] Figure 2 is a version identification principle diagram of the present application.
[0020] As shown in the figure: 10, a power supply module; 20, a sampling module; 201, a first sampling unit; 202, a second sampling unit; 203, a third sampling unit; 204, a fourth sampling unit; 30, an indicator light; 40, a 24V sampling module; 50, a 12V sampling module. DETAILED DESCRIPTION
[0021] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application. On the contrary, the embodiments of the present application include all changes, modifications and equivalents falling within the spirit and scope of the appended claims.
[0022] The low-cost PCB hardware version identification circuit of the embodiments of the present application will be described below in conjunction with the drawings.
[0023] As Figures 1-2As shown, the low-cost PCB hardware version identification circuit of the embodiment of the utility model, including power module 10, sampling module 20, pilot lamp 30, 24V acquisition module 40 and 12V acquisition module 50.
[0024] Among them, power module 10 electric output connects sampling module 20, sampling module 20 electric output connects pilot lamp 30, sampling module 20 electric output connects 24V acquisition module 40, sampling module 20 electric output connects 12V acquisition module 50.
[0025] Specifically, the power supply system of power module 10 is 5V, and sampling module 20 is four groups of resistors, which are electrically connected to power module 10 respectively. Among them, two groups of resistors are electrically connected to 24V system respectively, and the other two groups of resistors are electrically connected to 12V system respectively.
[0026] In an embodiment of the utility model, as shown in Figure 1 Sampling module 20 includes first sampling unit 201, second sampling unit 202, third sampling unit 203 and fourth sampling unit 204.
[0027] Among them, first sampling unit 201 electrically input connects power module 10, second sampling unit 202 electrically input connects power module 10, third sampling unit 203 electrically connects first sampling unit 201, fourth sampling unit 204 electrically connects second sampling unit 202.
[0028] It should be noted that the resistance value of first sampling unit 201 is 47K, and the resistance value of third sampling unit 203 is 5.1K, the resistance value of second sampling unit 202 is 47K, and the resistance value of fourth sampling unit 204 is 10K. Third sampling unit 203 and fourth sampling unit 204 are electrically grounded respectively.
[0029] In an embodiment of the utility model, as shown in Figure 1 First sampling unit 201 and third sampling unit 203 are 24V voltage division sampling resistors respectively.
[0030] It should be noted that 24V voltage division sampling resistor is used for voltage division of system power supply.
[0031] In an embodiment of the utility model, as shown in Figure 1 Second sampling unit 202 and fourth sampling unit 204 are 12V acquisition voltage division resistors respectively.
[0032] It should be noted that 12V voltage division sampling resistor is used for voltage division of system power supply.
[0033] In an embodiment of the utility model, as shown in Figure 1As shown, a current collection limiting resistor is arranged between one group of indicator lamps 30 and the 24V collection module 40, and a current collection limiting resistor is arranged between the other group of indicator lamps 30 and the 12V collection module 50. The indicator lamps 30 are two groups, and the two groups of indicator lamps 30 are LED lamps respectively.
[0034] It should be noted that the two groups of indicator lamps 30 are prepared by LED lamps respectively, and when reading the 12V system, the MCU_DI_VER_B output provides 1 second high level and 1 second low level to make the 12V system indicator lamps alternate flicker, to complete the system identification and indication function, and when reading the 24V system, the MCU_DI_VER_A output provides 1 second high level and 1 second low level to make the 24V system indicator lamps alternate flicker, to complete the system identification and indication function.
[0035] Specifically, the identification process is as follows:
[0036] When the system is a 12V system: the R43T resistor and the R45T resistor need to be pasted on the PCB, and the R46T and the R44T are pasted on the PCB, at this time, the MCU_DI_VER_A recognized is low level, and the MCU_DI_VER_B recognized is high level, at this time, it can be confirmed that the current PCB is in a 12V system state, when reading the 12V system, the MCU_DI_VER_B output provides 1 second high level and 1 second low level to make the 12V system indicator lamps alternate flicker, to complete the system identification and indication function.
[0037] When the system is a 24V system: the R44T resistor and the R46T resistor need to be pasted on the PCB, and the R43T and the R45T are pasted on the PCB, at this time, the MCU_DI_VER_A recognized is high level, and the MCU_DI_VER_B recognized is low level, at this time, it can be confirmed that the current PCB is in a 24V system state, when reading the 24V system, the MCU_DI_VER_A output provides 1 second high level and 1 second low level to make the 24V system indicator lamps alternate flicker, to complete the system identification and indication function.
[0038] In summary, the low-cost PCB hardware version identification circuit of the embodiment of the utility model simplifies the hardware version identification circuit architecture and reduces the use cost, realizes the identification and version display circuit in the same circuit, and reduces the occupation of hardware resources.
[0039] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary, and cannot be understood as limiting the utility model, and the ordinary skilled in the art can change, modify, replace and deform the above-mentioned embodiments within the scope of the utility model.
Claims
1. A low-cost PCB hardware version identification circuit, characterized in that, It includes a power supply module (10), a sampling module (20), an indicator light (30), a 24V acquisition module (40), and a 12V acquisition module (50), among which, The power supply module (10) is electrically connected to the sampling module (20); The sampling module (20) is electrically connected to the indicator light (30); The sampling module (20) is electrically connected to the 24V acquisition module (40); The sampling module (20) is electrically connected to the 12V acquisition module (50).
2. The low-cost PCB hardware version identification circuit according to claim 1, characterized in that, The sampling module (20) includes a first sampling unit (201), a second sampling unit (202), a third sampling unit (203), and a fourth sampling unit (204), wherein, The first sampling unit (201) is electrically connected to the power supply module (10); The second sampling unit (202) is electrically connected to the power supply module (10); The third sampling unit (203) is electrically connected to the first sampling unit (201); The fourth sampling unit (204) is electrically connected to the second sampling unit (202).
3. The low-cost PCB hardware version identification circuit according to claim 2, characterized in that, The first sampling unit (201) and the third sampling unit (203) are 24V voltage divider sampling resistors, respectively.
4. The low-cost PCB hardware version identification circuit according to claim 2, characterized in that, The second sampling unit (202) and the fourth sampling unit (204) are 12V sampling voltage divider resistors, respectively.
5. The low-cost PCB hardware version identification circuit according to claim 1, characterized in that, One set of indicator lights (30) and the 24V acquisition module (40) are provided with a current-limiting resistor for data acquisition, and the other set of indicator lights (30) and the 12V acquisition module (50) are provided with a current-limiting resistor for data acquisition.
6. The low-cost PCB hardware version identification circuit according to claim 1, characterized in that, The indicator lights (30) are in two sets, and the two sets of indicator lights (30) are LED lights.