High-power power devices, which are integrated circuit components capable of handling high power levels and large current/voltage outputs for powering medium-to-high-power electronic systems or energy conversion applications, serve as indispensable key components in modern electronic equipment. Their core functionality lies in achieving efficient electrical energy conversion, distribution, voltage stabilization, or control to meet the power supply requirements of high-power devices such as industrial machinery, new energy vehicles, servers, and high-efficiency household appliances. With rapid technological advancements, these power devices undergo continuous upgrades while performance standards remain increasingly stringent. Consequently, electrical parameter testing has become a critical process for ensuring product quality and maintaining stable performance characteristics.
Introduction to Electrical Performance Parameters
Electrical performance parameters serve as the core descriptors of large power devices' characteristics in circuits, reflecting their comprehensive performance under various operating conditions. Key electrical parameters for these devices include operating currents, working voltages, energy conversion efficiency, as well as overvoltage protection, overcurrent protection, and overtemperature protection mechanisms. These parameters play a decisive role in determining the operational performance of large power devices.
Specifically, the magnitude of operating current, operating voltage, and energy conversion efficiency directly determines the application scenarios for high-power devices; overvoltage protection, overcurrent protection, and overtemperature protection are critical to the safety of products utilizing high-power devices.
It is noteworthy that various types of high-power devices differ significantly in electrical performance parameters and operating conditions. To gain a deeper understanding of these variations, we can refer to relevant device manuals. As shown in the figure below, the table presents selected electrical characteristic parameters from a company's high-power device specification document. Detailed electrical performance specifications and operational parameters can be obtained from such technical documents. This information is crucial for selecting appropriate high-power devices based on specific application scenarios and requirements.
Main testing equipment
GRGTEST has adopted the STS8200 analog chip test platform from Huafeng Measurement & Control, delivering high-standard testing and validation capabilities.
Device features:
The STS8200 is an analog chip testing platform developed by Huafeng Test & Control, a leading ATE company in China. Designed and engineered in-house by Huafeng Test & Control, the STS8200 serves as the mainstream testing solution for the domestic analog IC ATE market and is exported globally. Specifically engineered for testing analog chips and mixed-signal chips, it offers comprehensive testing capabilities.
The integrated software platform enables VS integration for joint debugging and generates code frameworks through a spreadsheet interface, providing users with robust programming and testing capabilities to accelerate and optimize test program development.
The STS8200 platform demonstrates exceptional scalability in simulated test channel capacity. The mainframe cabinet consists of two plug-in boxes, each supporting 13 slots for a total maximum of 26 slots. The system allows flexible insertion of modular resource boards based on required specifications, ensuring precise resource compatibility for all products.
The system supports analog testing across multiple voltage and current ranges, with standard testing covering-100V to +100V and-10A to +10A. Its integrated FOVI/FPVI/QVM boards can generate waveforms based on test data, enabling analog oscilloscope functionality.
Furthermore, the device supports up to 32 digital channels and multiple digital communication protocols, with dedicated function libraries provided for each protocol to meet mixed analog-digital testing requirements while significantly enhancing testing and development efficiency.
Test Case
Similar to hardware development and embedded system engineering, comprehensive evaluation of major power supply components' parameters is essential before conducting large-scale power testing. Selecting appropriate testing equipment becomes critical, as testing devices serve as our frontline tools – improper choices may lead to either "using a sledgehammer to crack a nut" or "overcomplicating matters with minor adjustments." The defining characteristic of large power components lies in their massive scale, requiring testing equipment with sufficient coverage for high voltage and current ranges. Beyond basic specifications, meticulous examination of intricate parameters like on-resistance proves vital to ensure measurement precision capable of detecting minute voltage and current variations.
Among the electrical parameters of large power supplies, critical DC parameters include VOUT, VFB, VRUN, IQ, ISS, and ISD. The minimum current typically falls below 10 mA, while the maximum operating current reaches several amperes.
The following demonstrates GRGTEST's application of STS8200 to test high-power components for a company. This project is characterized by high-current driving capability, with a single channel capable of delivering 4A current and a four-channel parallel configuration achieving 16A output.
Test sample
Extract key test parameters
Specialized Testing of Electrical Parameters for High-Power Devices
GRGTEST specializes in integrated circuit testing, establishing professional capabilities for electrical parameter measurement of large power devices. Leveraging advanced equipment, precision technologies, and extensive practical experience, we deliver high-standard testing and validation support throughout the entire R&D and production process of large power devices.
Powered by high-end testing equipment: The system incorporates Huafeng Measurement & Control's STS8200 analog chip testing platform, offering wide-range testing capabilities from-100V to +100V and-10A to +10A. Featuring 32 digital channels and multi-communication protocol support, it excels in handling high-voltage/high-current testing while accurately capturing minute parameters like on-resistance. Comprehensive performance evaluation from rough measurements to detailed inspections is seamlessly achieved!
Comprehensive parameter detection: Capable of testing critical DC parameters including VOUT, VFB, VRUN, IQ, and ISS, covering core electrical performance indicators such as operating current/voltage and protection characteristics. The measured data precisely matches the specifications limits stated in device datasheets, providing robust data support for product quality control!
Diversified Test Capability Portfolio: Leveraging advanced technologies and equipment, we build upon large-scale power device testing to concurrently develop comprehensive test capabilities for digital logic chips, analog-digital hybrid chips, SoC chips, and other diversified components, establishing a full-spectrum integrated circuit testing service ecosystem.
Authoritative credentials + professional team: Certified by CMA/CNAS and recognized by nearly 40 automakers, our core team specializes in chip testing with proven expertise in test program development and implementation. We deliver end-to-end solutions covering test protocol design to data interpretation for clients.