292 results about "Electronic load" patented technology

The invention discloses a POL power supply automatic test method based on modular design, and belongs to the technical field of power supply test. The method comprises the following steps: firstly, under the control of an upper computer, automatically reading POL power supply basic parameters including key characteristic parameters such as input / output voltage, rated current and frequency from a preset Excel table, and establishing a judgment reference for testing; then, instrument initialization is completed, communication connection with test equipment such as an oscilloscope, an electronic load and a direct-current power supply is established, and configuration of initialization function parameters is completed; then, executing a measurement task of each core parameter of the POL power supply to be tested, and in the test process, executing a parallel measurement management mechanism, namely configuring each instrument parameter and channel state in real time according to a specific test item, and triggering a retry or interrupt logic under the conditions of communication abnormality, data timeout and the like until the test recovers a running state; and finally, after the test is completed, performing Excel storage and interaction on the standardized test data and the waveform screenshot, and finally safely exiting. According to the POL power supply automatic test method based on the modular design, the whole test process is divided into a plurality of serial or parallel function processing units such as parameter reading, instrument initialization, test execution and test management, data storage and interaction and the like, and high efficiency and usability of a test system are achieved.

A DC electronic load circuit relates to the technical field of electronic load control. The utility model provides a direct current electronic load circuit which integrates a dissipation MOS tube array, an analog PID loop, a digital integrated control module, a bus electrical parameter sampling and processing module and a WiFi communication module, and realizes a plurality of working modes such as constant current, constant voltage, constant resistance and constant power by accurately controlling the conduction degree of the MOS tube array. The system has the advantages of real-time monitoring, remote control, overvoltage and overcurrent protection, low power consumption design and the like, and an electronic load solution which is high in precision, high in stability and flexible to operate is provided, so that diversified test requirements are met, and the power supply test efficiency and safety are improved.

The invention relates to the technical field of electronic measurement, in particular to a multifunctional comprehensive test method and system for a direct-current power supply, and the method comprises the steps: initializing a test; a static performance test step; a dynamic performance test step: driving a direct-current electronic load module to execute a time sequence instruction sequence in the dynamic load test file, and acquiring an output voltage and an output current waveform through a high-speed data acquisition module in the execution process; a ripple noise test step: switching the high-speed data acquisition module to an alternating current coupling mode and acquiring a high-frequency noise waveform in a constant load current section in the time sequence instruction sequence; a correlation analysis step; and a test termination step: controlling the load to return to zero and closing the tested DC power supply. Through automatic configuration and test execution of the system, the complexity of manual operation is reduced, and the test efficiency is improved. And especially in a high-frequency test scene, the test time is remarkably saved through automatic execution.

The invention relates to an automatic power supply test system and method. The automatic power supply test system comprises a programmable AC power supply module, an electrical performance acquisition module, a control module and a plurality of electronic load modules. The power output end of the programmable AC power supply module is connected with the power input end of a to-be-tested DC power supply, and the signal input end of the programmable AC power supply module is connected with the signal output end of the control module. The power output end of the to-be-tested DC power supply is connected with the signal input end of the electrical performance acquisition module, and is dynamically connected with the power input ends of the plurality of electronic load modules. The control module is used for determining a corresponding test mode, and generating a corresponding programmable power supply control signal and a dynamic connection control signal according to the test mode so as to simulate different power supply working conditions and realize load test processes under different load conditions. The testing device can adapt to various power supply and load working conditions, and solves the problems of dispersed functions and bloated structure of the existing testing device.

The invention discloses an automatic test system of a power driving chip, and particularly relates to the technical field of automatic test, which comprises a dynamic test control module, a multi-level parallel test module, an abnormal power detection module and a safety verification diagnosis module. Based on cooperative work of a programmable electronic load and a digital signal processor, the dynamic response capability of a chip under different working conditions is verified, abnormal power data under an extreme load condition is generated, electrical parameters and thermal parameters of the chip are synchronously collected, the relevance between abnormal power performance and temperature is analyzed, and the abnormal power performance is analyzed. Temperature rise differences caused by power-off protection and electric leakage are distinguished, abnormal power waveforms are extracted and classified so as to distinguish power-off protection and electric leakage events, the influence degree of environmental charge interference is quantified, finally, response effectiveness of a chip protection circuit in a strong charge environment caused by electric leakage is simulated, and calibration is performed according to a collected correction value. Therefore, the automation degree of the system is improved, and the test robustness is enhanced.

The invention discloses a detection method, equipment and medium for a new energy high-power direct-current charging pile, and relates to the technical field of charging pile stability detection, and the method comprises the steps: controlling a direct-current electronic load to generate a load disturbance signal at N characteristic working points, collecting instantaneous value change data through a broadband data collection center, and calculating the stability of the charging pile according to the instantaneous value change data; and based on the dynamic load disturbance signal and the instantaneous value change data, calculating the pulse response characteristics of the to-be-tested DC charging pile at the N characteristic working points through a correlation function analysis method, constructing a dynamic impedance characteristic model, and based on the safe working area three-dimensional boundary map, the electric energy quality indexes of the N characteristic working points and the dynamic impedance characteristic model, calculating the dynamic impedance characteristic of the to-be-tested DC charging pile. And evaluating and diagnosing the comprehensive performance of the direct current charging pile to be tested. According to the direct current charging pile comprehensive performance detection method based on dynamic load disturbance, accurate physical examination of the overall performance of the charging pile is achieved, and the detection depth, precision and predictability are improved.

The invention discloses a battery management unit equalization efficiency test method and system, and relates to the technical field of function test, and the method comprises the steps: inputting a time-varying test instruction sequence into an electronic load instrument and a BMS for active equalization, synchronously collecting multi-modal time sequence data in an active equalization process, and constructing a dynamic equalization matrix; inputting the dynamic equilibrium matrix into a time-varying efficiency evaluation model, performing real-time association mapping by a working condition mapping layer, performing feature aggregation by a statistical aggregation layer, and outputting an efficiency distribution thermodynamic diagram; and performing global statistical characteristic analysis and multi-parameter coupling association on the efficiency distribution thermodynamic diagram and the dynamic equilibrium matrix, identifying an efficiency abnormal trend, performing time sequence prediction analysis and root cause analysis on the efficiency abnormal trend, and generating an equilibrium performance evaluation report. According to the method, the time-varying efficiency evaluation model is constructed, and the time-varying test instruction sequence is synchronously generated, so that the visualization and deep insight of the test result are realized, and the authenticity and compositeness of test excitation are improved.

The invention discloses a transformer station DC system storage battery pack on-load discharge capacity checking method and system, and relates to the technical field of storage battery discharge maintenance, and the method comprises the steps: carrying out the equalizing charging of a storage battery pack through an equalizing charging voltage, and collecting the internal resistance of a single storage battery before capacity checking; after capacity checking is started, an intelligent electronic load value is adjusted, so that the output current of the storage battery pack keeps a constant set value; when a test ending condition is met, obtaining nuclear capacity discharge capacity according to the discharge current and the discharge time of the storage battery pack; the storage battery pack is charged after charging is finished, the capacity checking charging capacity is obtained according to the charging current and the charging time, and the internal resistance of the single storage batteries after capacity checking is collected after charging is finished; and generating an on-load discharge capacity checking test table according to the internal resistance of the single storage battery before capacity checking, the capacity checking discharge capacity, the capacity checking charge capacity and the internal resistance of the single storage battery after capacity checking so as to complete capacity checking of the storage battery pack. Remote online capacity checking is realized, and the problem of low reliability of the whole group of storage batteries caused by virtual connection of storage battery connecting strips or performance reduction of a single storage battery is solved.

The invention provides an electronic load grid voltage adjusting method based on an improved DQN algorithm, and the method comprises the steps: employing a DQN reinforcement learning architecture, collecting the high-frequency waveform data of the load pulling current of an electronic load, obtaining an instantaneous amplitude signal, an instantaneous phase signal and an instantaneous frequency signal through Hilbert transformation, and enabling the instantaneous amplitude signal, the instantaneous phase signal and the instantaneous frequency signal to serve as an environment state st; the environment state st is input into a multi-mode DeepSeek distillation model intelligent agent, and the intelligent agent outputs an electronic load MOS tube grid voltage regulating variable delta Pt as an action at; establishing a reward function rt with optimal control performance as a target; the intelligent agent executes the action at in the environment state st to obtain a new environment state st + 1, and (st, at, rt, st + 1) is stored in an experience playback buffer pool; and the network parameters are replayed, optimized and updated by adopting priority experience, so that the accurate control of the load pulling current of the electronic load is realized.

The utility model discloses a parallel operation copper bar and system of an electronic load, and the parallel operation copper bar comprises a positive electrode copper bar which is used for connecting the positive electrode power input end of the electronic load; the cathode copper bar is used for connecting a cathode power input end of the electronic load, and the cathode copper bar and the anode copper bar are oppositely arranged at an interval; the insulating plate is arranged between the positive electrode copper bar and the negative electrode copper bar, and the positive electrode copper bar and the negative electrode copper bar are tightly attached to one side face of the insulating plate respectively. According to the invention, the amplitude of current overshoot oscillation can be reduced, and the reliability and safety of the parallel operation system of the electronic load are improved.

The invention discloses a testing device for a PCB (Printed Circuit Board). The testing device comprises a testing box body, a testing jig, a testing instrument and a control upper computer, a simulation battery module, a logic control module, an intermediate relay module, a reference BMS module and a power supply are arranged in the test box body; the simulation battery module outputs multiple paths of adjustable cell voltages for sampling of a PCB to be tested, the logic control module receives an instruction of an upper computer to control a test process, the intermediate relay module realizes signal switching and on-off control, the reference BMS module provides function parameter comparison, and the test instrument comprises an electronic load and a universal meter. The device is used for detecting parameters such as discharge performance, voltage and current. The test fixture is fixed and connected with a to-be-tested PCB, the contact port assembly can be replaced to adapt to different models, and the code scanning gun inputs test information and triggers a process. The device has the functions of multi-path voltage simulation, automatic signal switching and data acquisition and tracing, is modularized in structure and high in adaptability and expansibility, and can improve the batch detection efficiency and precision.

The invention discloses a self-gas-supply portable hydrogen fuel cell test platform and a test method. The self-gas-supply portable hydrogen fuel cell test platform comprises a control system, a test system and an electronic load, the test system comprises an anode / cathode gas supply system, an anode / cathode gas source treatment system, an anode / cathode gas humidifying system, a nitrogen purging system, a fuel cell and an anode / cathode tail exhaust backpressure system, the gas supply system, the gas source treatment system and the gas humidifying system of the anode are connected in sequence, and the gas supply system, the gas source treatment system and the gas humidifying system of the cathode are connected in sequence; the nitrogen purging system is connected with the anode and the cathode; the anode / cathode gas humidifying system is respectively connected with the anode / cathode gas inlet end of the fuel cell; the anode / y cathode tail discharge end of the fuel cell is connected with the anode / cathode tail discharge backpressure system; a traditional gas cylinder is replaced by gas production of the anode gas and the cathode gas, transportation and storage restrictions are eliminated, a mobile test scene is supported, and the device is particularly suitable for the on-site rapid detection requirement of a small fuel cell.

The invention discloses a high temperature fuel cell HT-PEMFC temperature control method and system based on fuzzy ADRC. The method comprises the following steps: constructing an HT-PEMFC system comprising an electric pile, a hydrogen supply pipeline, an air supply pipeline, a hot oil loop, a data acquisition device, a direct current electronic load and a host; according to the operation data of each device in the HT-PEMFC system, a temperature dynamic model of the HT-PEMFC system is established based on a multi-physics field Modelica language platform Dymola; a fuzzy bandwidth adjustment strategy (Fuzzy-ADRC) is designed; the fuzzy bandwidth adjustment strategy Fuzzy-ADRC is used for stable control of the stack temperature under load current disturbance and circulating pump flow disturbance. According to the method, the problem of over-compensation energy consumption of a traditional ADRC under strong disturbance and the problem of high regulation energy consumption of PID are solved, and the method is one of optimal controllers for thermal management of the HT-PEMFC system.

The invention discloses a current output control method, device and system, electronic equipment and a storage medium, the current output control method, device and system are applied to an electronic load system, the electronic load system comprises a consumption type electronic load and a feedback type electronic load which are connected in parallel, the consumption type electronic load and the feedback type electronic load are both connected with a tested power supply, and the method comprises the following steps: obtaining a target current value; based on the target current value, controlling the feedback type electronic load to output at a first output current; based on the target current value and the first output current, controlling the consumable electronic load to output with a second output current; the rising speed of the second output current is greater than that of the first output current; and under the condition that the output current of the electronic load system is the target current value, the consumption type electronic load is controlled to output a third output current, so that the output current of the electronic load system is kept at the target current value until the output current of the feedback type electronic load reaches the target current value and the third output current keeps a descending trend.

The utility model discloses a miniature electronic load instrument applied to production, which comprises an instrument body, one end of the instrument body is provided with a to-be-tested switching power supply connecting port, the instrument body is provided with a liquid crystal display screen and a plurality of function keys, and the function keys comprise a start key, a setting key, a + key and a-key. A main control board is arranged in the instrument body, the main control board comprises a single chip microcomputer, a to-be-tested switching power supply connecting port, a liquid crystal display screen, a start key, a setting key, a + key and a-key are electrically connected with the main control board, and the to-be-tested switching power supply connecting port, the single chip microcomputer, the liquid crystal display screen, the start key, the setting key, the + key and the-key form a main control circuit. According to the utility model, the conventional professional equipment is replaced, the cost of instruments, equipment and materials is greatly reduced, the parameter adjustment of a test experiment product can be quickly responded, and meanwhile, various test parameters of the test product can be intuitively observed through the 1602 liquid crystal on the surface, so that the use is convenient.

The invention discloses a current compensation method of a vehicle lamp controller. A to-be-measured vehicle lamp controller channel and a target output current of a to-be-measured function in the channel are selected; replacing the actual maximum load with an electronic load, and measuring the actual current with test equipment; calculating a current compensation value, and sending the current compensation value to the vehicle lamp controller through the CAN diagnosis equipment; after receiving the current compensation value, the vehicle lamp controller judges whether the sum of the current compensation value and the actual current value exceeds the maximum allowable value or not, and if not, the compensation value is updated; the vehicle lamp controller adjusts the output current according to the target output current and the compensation value; the invention also discloses a system used by the current compensation method of the vehicle lamp controller. Calibration is carried out according to the vehicle lamp functions, the currents corresponding to all the vehicle lamp functions are calibrated and stored respectively, special calibration compensation currents are used for different vehicle lamp functions, it is ensured that the deviation between the actual output current and the target current is smaller, and the number of defective products with the currents exceeding the design range is reduced.

The invention discloses an ice water impact control method and system for a DC converter, and relates to the technical field of DC converter detection, and the method comprises the steps: collecting the first state data of a to-be-detected DC converter; determining a sample operation state according to the first state data; if the sample operation state is ready, controlling a main power supply to supply power to the to-be-tested DC converter; controlling an incubator and an electronic load to carry out load processing on the to-be-tested direct-current converter, so that the to-be-tested direct-current converter sequentially goes through a no-load working stage and a full-load working stage at a target temperature; after the full-load working stage is finished, an execution mechanism is controlled to perform water spraying impact treatment on the to-be-tested direct-current converter; monitoring operation data of the DC converter to be measured, wherein the operation data comprises second state data and external measurement data; and performing security protection processing according to the operation data. According to the invention, ice water impact control is realized, and accuracy and efficiency are improved.

The invention relates to the technical field of chip testing, in particular to a chip thermal resistance and over-temperature protection temperature testing system, method and device and a medium. The electronic load provides a load for the chip to be tested; the controllable constant-temperature box provides the working environment temperature of the to-be-tested chip; the computing device is used for acquiring the chip power consumption of the chip to be tested at the preset environment temperature at the moment before the over-temperature protection occurs after the controllable constant-temperature box is at the preset environment temperature and the electronic load is gradually increased from 0 until the over-temperature protection occurs on the chip to be tested; and after the data acquisition module acquires the corresponding chip power consumption under the n preset environment temperatures, the chip thermal resistance and the final over-temperature protection temperature are calculated based on the n preset environment temperatures and the corresponding n chip power consumption. The technical scheme is high in test precision, simple, stable and reliable in test circuit and low in test cost, and is mainly used for testing chip thermal resistance and over-temperature protection temperature.

The invention discloses a power electronic load-containing load equivalence and parameter identification method, which comprises the following steps of: preprocessing original power load data, and extracting data required by subsequent parameter identification; determining a load model structure, and performing aggregation equivalence on the power distribution network, the static load, the dynamic load and the power electronic load according to a principle that system response before and after aggregation remains unchanged; the method comprises the following steps: firstly, constructing a load model, then determining parameters, needing to be identified, of each type of load model, distinguishing dominant parameters and non-dominant parameters by adopting trajectory sensitivity, setting values of the non-dominant parameters as typical values, then identifying the dominant parameters through an improved quantum particle swarm algorithm, determining the values of the dominant parameters, and finally, performing accuracy evaluation on the established load model. According to the invention, a more accurate load model can be established for a modern power system containing a power electronic load, the simulation precision of the power system is improved, and the analysis and control of a power department on the power system are facilitated.

This invention discloses a test load control method and system based on collaborative protection, belonging to the technical field of power electronic testing equipment. It includes acquiring mode switching commands and controlling a regenerative DC power supply to maintain a constant voltage mode and controlling a linear electronic load to switch to a rapid load-pull mode based on these commands. An anti-backflow circuit is used to allow current to flow from the device under test (DUT) to the test loop, and energy replenishment is provided through a filter absorption circuit. The port voltage of the regenerative DC power supply is fine-tuned using an outer-loop voltage regulator to maintain a stable distribution ratio between the port voltage of the regenerative DC power supply and the port voltage of the linear electronic load during mode switching. This invention forms a three-layer protection mechanism of hardware anti-reverse circuitry, hardware voltage regulation, and software closed-loop fine-tuning, which can balance safety and performance indicators when facing complex dynamic testing conditions.

The present application relates to a kind of wide-range bidirectional DCDC electronic load three-level control system and method, for solving the technical problems that the method exists in the test cost of traditional power supply test, test precision is low and debugging is difficult using multiple power supply load combination.The system includes input stage circuit, intermediate stage circuit unit, output stage circuit, the first control system of control input stage circuit, the second control system of control intermediate stage circuit unit and the third control system of control output stage circuit;The output end of third control system is connected to first control system.The input stage circuit of the present application adopts voltage outer loop control, current inner loop control mode, intermediate stage circuit adopts open loop control mode of fixed frequency and fixed duty cycle, output stage circuit adopts any mode outer loop control of constant current, constant voltage, constant resistance and constant power, inductance current loop inner loop control mode;Input stage circuit and output stage circuit synchronous control, intermediate stage circuit energy automatic distribution, realize bidirectional control.

The invention provides an alternating-current charging pile test system, and belongs to the technical field of alternating-current charging pile test.The alternating-current charging pile test system is characterized in that a test cabinet comprising a load disturbance generator, a load coupling device, a programmable alternating-current electronic load, an electric energy quality analyzer and other core equipment is constructed, and the load disturbance generator is used for generating a step load disturbance signal; continuous adjustment of load impedance is realized through a load coupling device, electrical parameters in a load disturbance process are analyzed in real time by adopting a sliding time window method, load response characteristics and electric energy quality change characteristics are extracted, and optimal load adjustment parameters are generated by applying a charging load adaptive model; comprehensive performance evaluation is performed in combination with the charging performance evaluation model, closed-loop optimization is realized through cooperative work of the dynamic load control module and the test analysis module, and the technical problem that the dynamic load adaptability evaluation precision of the AC charging pile is insufficient is solved.

The present application belongs to the technical field of fuel cell, and particularly relates to a kind of fuel cell impedance spectrum fast measurement system and measurement method, system is divided into excitation current injection part, data acquisition part and host computer, host computer uses DIBS signal with excellent peak suppression ability and flexible amplitude frequency design ability as test excitation, uses electronic load as excitation source.Host computer can control electronic load to generate current excitation waveform for impedance test based on DIBS signal, and electronic load injects excitation current into the output current of the measured stack, and host computer can also read the sampling data of data acquisition part, and the collected excitation current and response voltage data are subjected to fast Fourier transform to obtain electrochemical impedance spectrum.The present application improves the impedance measurement efficiency, the hardware structure is simple, has good on-site application prospect, and the measured object can be extended to other electrochemical systems including electrolytic cell, and has good expandability.

The present disclosure is directed, in general, to (1) nonlinear optical (NLO) chromophores, including (2) compositions / materials / resistive layers comprising NLO chromophores, and the methods of making the compositions / materials / resistive layers comprising NLO chromophores (e.g., methods of poling and / or drying, and the like), (3) uses of NLO chromophores in electro-optic devices (e.g., electro-optic modulators (EOMs)). NLO chromophores disclosed herein not only have large EO effect, but also have fast modulation speed. In addition, NLO chromophores disclosed herein have superior refractive index, photostability and thermal stability compared to other EO Materials. As a consequence, NLO chromophores herein are particularly suited for use as EO materials in connection with low power and small footprint devices, including devices used in data acquisition systems, analog I / O modules, field transmitters, lab and field instrumentation, servo drive control modules, direct current (DC) power supply, alternating current (AC), and / or electronic load.

The invention relates to the technical field of battery testing, in particular to an alkaline fuel cell testing device which comprises a to-be-tested single battery, a gas assembly and a liquid circulation assembly, the to-be-tested single battery is electrically connected with an external electronic load, and the to-be-tested single battery is fixedly connected and communicated with the gas assembly; the gas assembly is used for leading in or leading out reaction gas to the to-be-tested single battery, the to-be-tested single battery is fixedly connected and communicated with the liquid circulation assembly, and the liquid circulation assembly is used for leading in or leading out alkaline electrolyte to the to-be-tested single battery. According to the alkaline fuel cell testing device, the gas assembly and the liquid circulation assembly are simple in structure, the alkaline fuel cell testing device has the advantages of being easy to machine, low in manufacturing cost and convenient to use, the operation environment of the to-be-tested single cell can be fully simulated, the performance of the to-be-tested single cell can be accurately and effectively tested, and testing is flexible and rapid. And moreover, the to-be-tested single battery is simple to replace, different test single batteries can be tested, and the application range is wide.

The invention provides an unmanned aerial vehicle wireless energy taking control method, device and system, and relates to the technical field of power systems and wireless charging. The method comprises the steps of obtaining power transmission line current parameters; based on the power transmission line current parameters, target load modes are determined, and the target load modes comprise a pure resistive load mode and a resistive-capacitive load mode; according to the target load mode, adjusting impedance characteristics of an adjustable electronic load in the unmanned aerial vehicle wireless energy taking control device and excitation parameters of an energy taking iron core in the unmanned aerial vehicle wireless energy taking control device; and according to the adjusted excitation parameters and impedance characteristics, the unmanned aerial vehicle wireless energy taking control device is controlled to output stable direct current voltage. The method is used for improving the energy taking stability and the energy taking efficiency of the unmanned aerial vehicle in operation states such as inspection, so that the unmanned aerial vehicle can work continuously, and the overall operation efficiency is improved.

The embodiment of the invention relates to the field of circuit structures, and provides an alternating current electronic load module, device and equipment, the module comprises a filter circuit, a bridgeless PFC, an overcurrent protection circuit, a resonance circuit, a redundant load and a control unit, an alternating current input port is connected with an input end of the bridgeless PFC through the filter circuit, and an output end of the bridgeless PFC is connected with an output end of the resonance circuit through the overcurrent protection circuit. The output end of the bridgeless PFC is connected with the input end of the resonance circuit through the overcurrent protection circuit, the control end of the bridgeless PFC is connected with the control unit, and the output end of the resonance circuit is connected with the input end of an inverter power supply to be detected through a redundant load; the over-current protection circuit is used for performing over-current protection on the circuit after the output current of the bridgeless PFC is higher than a preset current threshold value, the over-current protection circuit can be used for performing over-current protection on the bridgeless PFC after the output current of the bridgeless PFC is higher than the preset current threshold value, and the safety and the reliability of the alternating current electronic load module during operation are improved.

The invention discloses a refined dynamic aggregation modeling method and device for a distributed new energy cluster. The method comprises the following steps: establishing an independent power supply model for a wide-area distributed power supply; based on a time-varying weighted aggregation model, distributed new energy cluster aggregation equivalent modeling is executed on each established individual power supply model, and an equivalent aggregation model is generated; establishing an independent load model for a power electronization load in the active power distribution network; integrating the established individual load models to generate a comprehensive load model; and performing cooperative control on new energy power generation and power electronization load by using the generated equivalent aggregation model and the generated comprehensive load model. The problems of low prediction precision and poor system stability and flexibility in the scheduling and control process caused by the fact that an electric power system modeling method cannot effectively cope with the impact of distributed energy and electric power electronic load access on a power grid are solved.

An electronic load testing system is configured to emulate aspects of an integrated circuit (IC). A control module of the system is configured to be electrically coupled to a first location on a printed circuit board (PCB) of an electronic assembly, and a load module is configured to be electrically coupled to a second location on the PCB. The load module includes a load cell configured to selectively conduct current from a power supply of the electronic assembly. The first location and the second location are spaced apart and in electronic communication via one or more traces of the PCB. The control module is configured to communicate with the load module via the one or more traces of the PCB. In some examples, the load module and the IC have an equivalent form factor, such that the load module can be installed in place of the IC.

The calibration method and calibration device of current detection and current protection mechanism, the calibration device comprises: a master control unit, an interface conversion unit, an electronic load generation unit and a power transmission function detection unit; the electronic load generation unit provides an electronic load, so that the universal serial bus control chip outputs a load constant current and corresponds to the load constant current, and generates an analog-to-digital conversion value by using at least one preset conversion parameter; the master control unit inputs and corresponds to the analog-to-digital conversion value, generates and stores a to-be-calibrated output current by using a to-be-calibrated current back-propagation operation method and at least one preset conversion parameter, generates at least one calibration conversion parameter by corresponding to the load constant current and the to-be-calibrated output current and using a conversion parameter calibration method, and replaces at least one preset conversion parameter in the universal serial bus control chip with at least one calibration conversion parameter, so that the universal serial bus control chip generates calibrated analog-to-digital conversion values by using at least one calibration conversion parameter and can correctly start the overcurrent protection mechanism.