Module power consumption test system and electronic equipment
The module power consumption testing system, composed of a DC power supply, a sensing resistor, and a power consumption detection circuit, solves the problems of high cost and low reliability caused by dedicated programmable power supplies, and realizes automated and low-cost module power consumption testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SIMCOM WIRELESS SOLUTIONS LTD (CHONGQING)
- Filing Date
- 2024-12-31
- Publication Date
- 2026-04-17
AI Technical Summary
Existing technologies use dedicated programmable power supplies for module power consumption testing, resulting in high costs, high expenses, and low test reliability.
The module power consumption test system, consisting of a DC power supply, a sensing resistor, a power consumption detection circuit, and a display module, automatically provides a stable voltage to be tested through the sensing resistor and the power consumption detection circuit. Combined with an analog-to-digital converter and a current regulator, it achieves automated power consumption testing.
It reduces testing costs and complexity, decreases labor costs, improves the reliability and accuracy of test results, and enables stable and reliable power consumption measurement without human intervention.
Smart Images
Figure CN224137356U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of automated testing technology, and in particular to module power consumption testing systems and electronic devices. Background Technology
[0002] The power consumption test of a wireless communication module mainly involves adjusting the module's operating state based on the measured current, and then measuring the power consumption under different operating states. The test current is divided into two methods: measuring static current and measuring dynamic current. Measuring static current refers to measuring the current of the module in sleep or standby mode, while measuring dynamic current refers to measuring the current of the module in operating mode.
[0003] Currently, the production line uses an external dedicated programmable power supply to test the power consumption of wireless communication modules. However, the high cost of purchasing or renting dedicated programmable power supplies leads to high module production testing costs. Furthermore, manual intervention is required on the production line to set up and monitor the modules, resulting in high labor costs. This significantly increases testing costs and reduces the reliability of test results. Utility Model Content
[0004] The purpose of this application is to provide a module power consumption testing system and electronic device to solve the problems of high cost, high expense and low test reliability caused by using a dedicated programmable power supply to test the power consumption of modules in the prior art.
[0005] According to some embodiments of this application, this application provides a module power consumption testing system, including a DC power supply, a detection resistor, a power consumption detection circuit, a module under test, and a display module. The detection resistor is connected in series between the DC power supply and the module under test. The current output by the DC power supply flows into the module under test through the detection resistor, providing operating current for the module under test. The power consumption detection circuit is connected to the detection resistor and the module under test, and is used to amplify the voltage difference across the detection resistor to obtain a processed voltage, which is then input into the module under test. The module under test is connected to the display module, and is used to sample the processed voltage to obtain a detection voltage, and calculate the theoretical voltage corresponding to the sampling time point of the power consumption detection circuit according to a preset instruction. The display device is used to calculate and display the test results based on the theoretical voltage and the detection voltage.
[0006] In some embodiments, the power consumption detection circuit includes a first interface, a second interface, and a third interface. The first interface is connected to a first terminal of the detection resistor, the second interface is connected to a second terminal of the detection resistor, and the third interface is connected to the module under test. The power consumption detection circuit is used to amplify the voltage difference between the first interface and the second interface and input it to the module under test through the third interface.
[0007] In some embodiments, the power consumption detection circuit further includes a small-signal power amplifier; the small-signal power amplifier is used to amplify the voltage difference across the detection resistor.
[0008] In some embodiments, the module under test includes an analog-to-digital converter (ADC); the ADC is used to sample the voltage output from the third interface of the power consumption detection circuit to obtain the detection voltage.
[0009] In some implementations, the module under test is also used to send the detected voltage to the display module.
[0010] In some embodiments, the module under test includes a current regulator; the current regulator is used to adjust the test current in the module under test and change the operating state of the module under test.
[0011] In some implementations, the module under test is used to calculate the theoretical voltage of the power consumption detection circuit at the sampling time point according to a preset instruction. The calculation process is V=I×R×G, where V represents the theoretical voltage, I represents the test current, R represents the resistance value of the detection resistor, and G represents the amplification factor of the small signal power amplifier.
[0012] In some embodiments, the display module is used to display the detected voltage and the theoretical voltage, and to calculate the test result based on the detected voltage and the theoretical voltage.
[0013] In some implementations, the test result is calculated by subtracting the difference between the detected voltage and the theoretical voltage, and then comparing the calculated difference with a preset threshold. If the difference is greater than the preset threshold, the test fails; if the difference is not greater than the preset threshold, the test passes.
[0014] According to some embodiments of this application, this application also provides an electronic device, including at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform module functions as described in the module power consumption test system of the above embodiments.
[0015] The technical solution provided in this application has at least the following advantages:
[0016] This application's module power consumption testing system includes a DC power supply. A detection resistor is connected in series between the DC power supply and the module under test. The current output from the DC power supply flows into the module under test through the detection resistor to provide operating voltage to the module under test. A power consumption detection circuit is connected to the detection resistor and the module under test. It processes the voltage across the detection resistor and inputs it into the module under test, automatically providing a stable test voltage to the module under test. This eliminates the need to configure a programmable power supply for each production line, reducing testing costs and complexity, and minimizing labor costs. The module under test samples the processed voltage to obtain a detection voltage and calculates the theoretical voltage corresponding to the power consumption detection circuit at the sampling time. The display device derives the test result based on the test voltage and the theoretical voltage. The entire process requires no human intervention, is stable and reliable, and accurately measures the power consumption of the module under test under various conditions. Attached Figure Description
[0017] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.
[0018] Figure 1 This is a schematic diagram of a module power consumption testing system according to an embodiment of this application;
[0019] Figure 2 This is a schematic diagram of an electronic device according to an embodiment of this application. Detailed Implementation
[0020] In related technologies, production lines use external dedicated programmable power supplies for power consumption testing. For example, using a microampere-level power consumption tester like the EMK850, transient current, average current, and actual power consumption during a single communication can be obtained, allowing calculation of the product's power consumption throughout the entire standby cycle. However, the high cost of purchasing or renting dedicated programmable power supplies leads to high module testing costs and prevents large-scale implementation on production lines. Furthermore, their operation is complex, requiring manual intervention to set up and monitor the dedicated programmable power supply, resulting in high labor costs. Manual testing on production lines often leads to incorrect power settings and asynchronous settings for different modules, significantly increasing the testing cycle and posing a risk of module damage due to operational errors.
[0021] Based on this, this application provides a module power consumption testing system, including a DC power supply, a detection resistor, a power consumption detection circuit, a module under test, and a display module. The detection resistor is connected in series between the DC power supply and the module under test. The current output by the DC power supply flows into the module under test through the detection resistor, providing a working voltage for the module under test. The power consumption detection circuit is connected to the detection resistor and the module under test, and is used to process the voltage across the detection resistor to obtain a processed voltage, which is then input into the module under test. The module under test is connected to the display module, and is used to sample the processed voltage to obtain a detection voltage, and calculate the theoretical voltage corresponding to the power consumption detection circuit at the sampling time point. The display device is used to calculate and display the test results based on the theoretical voltage and the detection voltage.
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the various embodiments of this application will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been presented in the various embodiments of this application to enable readers to better understand this application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed in this application can be implemented. The division of the various embodiments below is for the convenience of description and should not constitute any limitation on the specific implementation of this application. The various embodiments can be combined with and referenced by each other without contradiction.
[0023] For ease of description, in the context of this specification, when an element is referred to as being "on" another element, it can be directly on the other element or indirectly on the other element if one or more intermediate elements are inserted therebetween. Furthermore, in the context of this specification, when an element is referred to as being "connected," "joined," or "attached" to another element, it can be directly connected, joined, or attached to the other element or indirectly connected, joined, or attached to the other element if one or more intermediate elements are inserted therebetween. Additionally, when an element is referred to as being "engaged" to another element, it can be directly engaged or in contact with the other element, or indirectly engaged or in contact with the other element if one or more intermediate elements are inserted therebetween.
[0024] like Figure 1 As shown, some embodiments of this application provide a module power consumption test system, including a DC power supply, which is a power supply built into the module power consumption test system, converting alternating current (AC) into direct current (DC) to provide stable DC voltage and current for the module power consumption test system.
[0025] In an embodiment of this application, the module power consumption test system includes a detection resistor connected in series between the DC power supply and the module under test. One end of the detection resistor is connected to the positive terminal of the DC power supply, and the other end is connected to the module under test. The current output by the DC power supply flows into the module under test through the detection resistor to provide operating current for the module under test. The current flowing through the detection resistor and the current of the module under test are the same.
[0026] The power consumption detection circuit connects the detection resistor and the module under test (DUT), and processes the voltage across the detection resistor to obtain a processed voltage, which is then input to the DUT. In one embodiment, the power consumption detection circuit includes a first interface IN+, a second interface IN-, and a third interface OUT. The first interface IN+ is connected to the first end of the detection resistor, specifically between the detection resistor and a DC power supply, and is used to detect the voltage value of the detection resistor near the DC power supply end. The second interface IN- is connected to the second end of the detection resistor, specifically between the power consumption detection resistor and the DUT, and is used to detect the voltage value of the detection resistor near the DUT end. The third interface OUT is connected to the DUT. The power consumption detection circuit amplifies the voltage difference between the first interface IN+ and the second interface IN- to obtain an amplified voltage value, which is then input to the DUT through the third interface OUT.
[0027] In one embodiment, the power consumption detection circuit further includes a small-signal power amplifier; a small-signal power amplifier is an electronic device specifically designed to amplify weak signals. It uses the principle of linear amplification to amplify the voltage or current of the input signal to a higher level, and it has wide applications in wireless communication, audio processing and other fields.
[0028] In an embodiment of this application, the small-signal power amplifier is used to amplify the voltage difference across the detection resistor. The power detection circuit performs differential processing on the voltage detected by the first interface IN+ and the second interface IN- of the power detection circuit. The small-signal power amplifier amplifies the difference and outputs the amplified voltage through the third interface OUT.
[0029] In an embodiment of this application, the module under test includes a fourth interface VBAT, a fifth interface ADC, and a sixth interface USB. The fourth interface VBAT is connected to the detection resistor and is used to receive the current flowing through the detection resistor. The fifth interface ADC is connected to the third interface OUT of the power consumption detection circuit and is used to receive the amplified voltage output by the third interface OUT of the power consumption detection circuit. The sixth interface USB is connected to the display module. The module under test is also used to calculate the power consumption of the detection resistor.
[0030] In one embodiment, the module under test includes an analog-to-digital converter (ADC), which is a converter that transforms analog signals into digital signals. It is mainly used to convert continuously transmitted analog signals into digital signals, facilitating rapid processing and analysis of transmitted information by digital systems (such as central processing units (CPUs) and microcontrollers (MCUs). Sampling is the process by which the ADC discretizes the continuous analog signal in the time domain. By acquiring the signal value at specific points in time, the analog waveform is divided into a series of discrete time slices.
[0031] In the embodiments of this application, the input interface of the analog-to-digital converter (ADC) is the fifth interface (ADC) of the module under test. The amplified voltage output from the third interface (OUT) of the power consumption detection circuit is input to the analog-to-digital converter (ADC) via the fifth interface (ADC). The analog-to-digital converter (ADC) samples the amplified voltage to obtain the detection voltage.
[0032] In one embodiment, the module under test is further configured to send the detected voltage to the display module.
[0033] In one embodiment, the module under test includes a current regulator; the current regulator is used to adjust the test current in the module under test and change the operating state of the module under test.
[0034] The module under test has multiple operating states, each with a different operating current. In sleep mode, the current value is typically below 2mA, while in normal operation, the current value is typically above 10mA. This varies from module to module, and this characteristic is not limited here. In the embodiments of this application, a current regulator is provided in the module under test. The current regulator is used to adjust the current value in the module under test, changing the operating state of the module under test, thereby testing the power consumption of the module under test in different operating states.
[0035] In the embodiments of this application, the module under test is further used to calculate the theoretical voltage across the detection resistor based on the test current. In the embodiments of this application, since the detection resistor is connected in series with the module under test, the current value in the detection resistor is the same as the current value in the module under test. After adjusting the test current in the module under test, the voltage value across the detection resistor can be calculated based on the test current. The calculation process is V'=I×R, where V' is the actual voltage value across the detection resistor, I is the test current, and R is the resistance value of the detection resistor. Since the power consumption detection circuit has a built-in small-signal power amplifier with a gain of G, the theoretical voltage value V after the voltage across the detection resistor is amplified by the power amplifier should be V=I×R×G, where V represents the theoretical voltage, I represents the test current, R represents the resistance value of the detection resistor, and G represents the gain of the small-signal power amplifier, that is, the theoretical voltage input to the module under test is V.
[0036] Assuming the current regulator in the module under test is adjusted to increase the current value from 1mA to 30mA, the amplification factor of the small-signal power amplifier is 1000, and the resistance of the sensing resistor is 0.1R, then the theoretical output voltage V = I × R × G = I × 0.1 × 1000 = 100 × I. The test data and theoretical data are shown in Table 1.
[0037]
[0038] Table 1
[0039] In embodiments of this application, the module under test is further configured to send the theoretical voltage to the display module. After calculating the theoretical value of the voltage, the module under test sends the theoretical voltage to the display module.
[0040] The display module is used to display the actual output voltage and the theoretical voltage, and calculate the test result based on the detected voltage and the theoretical voltage. After receiving the detected voltage and the theoretical voltage, the display module displays them on the interface for visual representation. It also calculates the test result based on the detected voltage and the theoretical voltage and displays the result in the corresponding operating mode. Specifically, calculating the test result based on the detected voltage and the theoretical voltage can involve calculating the difference between the detected voltage and the theoretical voltage. If the difference is less than a preset threshold, the test passes; otherwise, the test fails. The preset threshold is a value pre-set according to the module; different modules have different preset thresholds, which are not limited here.
[0041] The display module is an assembly that integrates display technology and other electronic components, providing a complete display solution. For example, a liquid crystal display module (LCM) is an assembly that combines liquid crystal display devices, connectors, integrated circuits, PCB circuit boards, backlights, structural components, etc., and can be used in display devices such as computers and tablets, without limitation.
[0042] For example, by adjusting the current regulator of the module under test to 1mA, the module under test is in a sleep state. Since the resistance of the sensing resistor is 0.1R and the amplification factor of the small-signal power amplifier in the power consumption detection circuit is 1000, according to V=I×R×G, we can get V=100I. Therefore, the theoretical voltage value calculated for the module under test should be 100×1mA=0.1V, as shown in Table 1. Its theoretical output voltage value is 0.1V. At this time, the voltage difference between the first interface IN+ and the second interface IN- of the power consumption detection circuit is I×R=1mA×0.1R=0.0001V. After the voltage difference is amplified by the small signal power amplifier, the detection voltage output of the third interface OUT is 0.064V, which is the voltage input of the fourth interface ADC of the module under test. The module under test sends the theoretical output voltage value of 0.1V and the detection voltage value of 0.064V to the display. The display module displays the test current, theoretical voltage, actual output voltage and test conclusion. The test conclusion is to calculate the difference between the theoretical output voltage value of 0.1V and the detection voltage value of 0.064V: 0.1V-0.064V=0.036V, and compare the difference of 0.036V with a preset threshold. If the difference is greater than the preset threshold, the test fails and the module under test has an abnormality. If the difference is not greater than the preset threshold, the test passes and the test result is displayed on the display module. After adjusting the current regulator of the module under test to other current values, the same testing process can be used to perform the test.
[0043] In an embodiment of this utility model, the module power consumption testing system includes a DC power supply. A detection resistor is connected in series between the DC power supply and the module under test. The current output by the DC power supply flows into the module under test through the detection resistor to provide a working voltage for the module under test. The power consumption detection circuit is connected to the detection resistor and the module under test. It processes the voltage across the detection resistor and inputs it into the module under test, thereby automatically providing a stable test voltage to the module under test. This eliminates the need to configure a programmable power supply for each production line for testing, reducing testing costs and complexity, and minimizing labor costs. The module under test samples the processed voltage to obtain a detection voltage and calculates the theoretical voltage corresponding to the power consumption detection circuit at the sampling time point. The display device derives the test result based on the test voltage and the theoretical voltage. The entire process requires no human intervention, is stable and reliable, and accurately measures the power consumption of the module under test under various conditions.
[0044] In some embodiments of this application, an electronic device 200 is also provided, see [link to relevant documentation]. Figure 2 The processor 201 includes at least one processing unit 201; and a computer program, such as a data processing program, stored in the memory 202 and executable on the processor 201. When the processor 201 executes the computer program, it implements the module functions in the module power consumption test system as described in any of the above embodiments.
[0045] For example, the computer program may be divided into one or more modules / units, which are stored in the memory 202 and executed by the processor 201 to complete this application. The one or more modules / units may be a series of computer program instruction segments capable of performing a specific function, which describe the execution process of the computer program in the electronic device.
[0046] The electronic device may be a desktop computer, laptop, handheld computer, or cloud server, etc. The electronic device may include, but is not limited to, a processor 201 and a memory 202. Those skilled in the art will understand that the schematic diagram is merely an example of an electronic device and does not constitute a limitation on the electronic device. It may include more or fewer components than illustrated, or combine certain components, or different components. For example, the electronic device may also include input / output devices, network access devices, buses, etc.
[0047] The processor 201 can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor, or the processor 201 can be any conventional processor. The processor 201 is the control center of the electronic device, connecting various parts of the electronic device through various interfaces and lines.
[0048] The memory 202 can be used to store the computer programs and / or modules. The processor 201 implements various functions of the electronic device by running or executing the computer programs and / or modules stored in the memory 202 and calling the data stored in the memory 202. The memory 202 may mainly include a program storage area and a data storage area. The program storage area may store the operating system, at least one application program required for a function (such as sound playback function, image playback function, etc.), etc.; the data storage area may store data created according to the use of the mobile phone (such as audio data, phonebook, etc.). In addition, the memory 202 may include high-speed random access memory, and may also include non-volatile memory, such as hard disk, memory, plug-in hard disk, smart media card (SMC), secure digital card (SD) card, flash card, at least one disk storage device, flash memory device, or other volatile solid-state storage device.
[0049] Wherein, if the modules / units integrated in the electronic device are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments can also be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by the processor 201, it can implement the steps of the various method embodiments described above. Wherein, the computer program includes computer program code, which can be in the form of source code, object code, executable file, or some intermediate form, etc. The computer-readable medium can include: any entity or device capable of carrying the computer program code, recording media, USB flash drive, portable hard drive, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal, and software distribution medium, etc.
[0050] Those skilled in the art will understand that the above embodiments are specific implementations of this application, and in practical applications, various changes can be made in form and detail without departing from the spirit and scope of this application.
[0051] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention and should not be construed as limiting the specific implementation of the present invention to these descriptions. For those skilled in the art, various equivalent substitutions or obvious modifications can be made without departing from the concept of the present invention, and all such modifications, achieving the same performance or use, should be considered within the protection scope of the present invention. In the description of this specification, the reference to terms such as "an embodiment," "some embodiments," "preferred embodiment," "example," "specific example," or "some examples," etc., indicates that the specific features, structures, materials, or characteristics described in connection with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials, or characteristics can be combined in a suitable manner in any one or more embodiments or examples. Without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples. Although the embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions, and modifications can be made herein without departing from the protection scope of the patent application.
Claims
1. A module power consumption testing system, characterized in that: This includes a DC power supply, a sensing resistor, a power consumption detection circuit, the module under test, and a display module. The detection resistor is connected in series between the DC power supply and the module under test. The current output by the DC power supply flows into the module under test through the detection resistor, providing the operating current for the module under test. The power consumption detection circuit is connected to the detection resistor and the module under test. It is used to amplify the voltage difference across the detection resistor to obtain the processed voltage, and then input it into the module under test. The module under test is connected to the display module. The module under test is used to sample the processed voltage to obtain the detection voltage, and to calculate the theoretical voltage of the power consumption detection circuit at the sampling time point according to the preset instruction. The display module is used to calculate and display the test results based on the theoretical voltage and the detected voltage.
2. The module power consumption testing system as described in claim 1, characterized in that: The power consumption detection circuit includes a first interface, a second interface, and a third interface. The first interface is connected to the first end of the detection resistor, the second interface is connected to the second end of the detection resistor, and the third interface is connected to the module under test. The power consumption detection circuit is used to amplify the voltage difference between the first interface and the second interface and input it to the module under test through the third interface.
3. The module power consumption testing system as described in claim 2, characterized in that: The power consumption detection circuit also includes a small-signal power amplifier; The small-signal power amplifier is used to amplify the voltage difference across the detection resistor.
4. The module power consumption testing system as described in claim 3, characterized in that: The module under test includes an analog-to-digital converter (ADC); The analog-to-digital converter (ADC) is used to sample the voltage output from the third interface of the power consumption detection circuit to obtain the detection voltage.
5. The module power consumption testing system as described in claim 4, characterized in that: The module under test is also used to send the detected voltage to the display module.
6. The module power consumption testing system as described in claim 4, characterized in that: The module under test includes a current regulator; The current regulator is used to adjust the test current in the module under test and change the working state of the module under test.
7. The module power consumption testing system as described in claim 6, characterized in that: The module under test is used to calculate the theoretical voltage of the power consumption detection circuit at the sampling time point according to the preset instruction. The calculation process is V=I×R×G, where V represents the theoretical voltage, I represents the test current, R represents the resistance value of the detection resistor, and G represents the amplification factor of the small signal power amplifier.
8. The module power consumption testing system as described in claim 7, characterized in that: The display module is used to display the detected voltage and the theoretical voltage, and to calculate the test results based on the detected voltage and the theoretical voltage.
9. The module power consumption testing system as described in claim 8, characterized in that: The test result is calculated by subtracting the difference between the detected voltage and the theoretical voltage, and then comparing the calculated difference with a preset threshold. If the difference is greater than the preset threshold, the test fails; if the difference is not greater than the preset threshold, the test passes.
10. An electronic device, comprising: include: At least one processor; as well as, A memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor to enable the at least one processor to implement the module functions in the module power consumption test system as described in any one of claims 1-9.