ATE (Automatic Test Equipment)

In the current era where the power electronics industry is accelerating towards digitization, high-frequencyization, and integration, precise, efficient, and all-scenario testing and verification have become the core for ensuring product reliability and accelerating research and development to mass production. From the "three-in-one" systems of new energy vehicles, photovoltaic energy storage converters, to industrial server power supplies and military special electronics, the market has put forward higher requirements for the "precision, efficiency, and compatibility" of testing equipment. Shenzhen Zhongke Yuan Electronics Co., Ltd. (CPET) - a national-level specialized and innovative "little giant" enterprise that has been deeply involved in the industry for 15 years - uses the CPET ATE all-scenario automatic testing equipment as the core carrier to build a testing system of "hardware modularization + software intelligence + scenario customization", providing global power electronics enterprises with a full-process intelligent solution from research and development verification to mass production testing, helping the industry upgrade to digitalization.

I. Fifteen Years of Technological Accumulation: From "Breaking Monopoly" to "Defining Standards", Establishing ATE Testing Leadership Position
Since establishing its presence in Shenzhen in 2010, CPET has consistently focused on the core field of power electronics ATE (Automatic Test Equipment) automation testing. By taking "technological autonomy and controllability" as the breakthrough point, the company has deeply explored three core areas: ATE automated testing systems, power electronics aging testing equipment, and intelligent production line integration solutions. Over the past fifteen years, the company has adhered to the concept of "unlimited R&D investment", breaking the monopoly of foreign brands in high-end testing equipment and creating a "Chinese chip" testing technology system with complete independent intellectual property rights.

Today, CPET has grown into a medium-sized technology enterprise with a staff of 400 people. Its core competitiveness is prominent:
Technical strength: A dedicated R&D team of over 80 people has been established, and it has accumulated more than 50 patents (including 12 invention patents). Core testing algorithms and hardware modules have all been independently developed; in 2025, it was approved as the "Engineering Technology Research Center for New Energy Power Electronic Intelligent Detection Technology and Complete Equipment in Guangdong Province", becoming a hub for industry technological innovation.

Scenarios are extensive: The business covers six major fields including new energy vehicle electronics, photovoltaic energy storage, industrial power supplies, server power supplies, LED drivers, and military aerospace. It is compatible with all types of power electronic products ranging from low-voltage and low-power to high-voltage and high-power.

High customer recognition: It has served over 4,000 enterprises, including global leading brands such as Huawei, BYD, Great Wall Motors, Philips, Optibar, and Samsung. With the service commitment of "lifetime warranty + on-site technical support", it has established a gold standard reputation in the ATE testing field.

II. CPET ATE All-Round Automatic Test Equipment: Three Core Advantages, Reconstructing the Logic of Power Electronic Testing
CPET ATE is not a traditional "test instrument combination", but rather a comprehensive intelligent test system for power electronic scenarios - based on an open architecture, with precise detection as its core, and driven by digital and intelligent processes, achieving the test capability of "one piece of equipment covering all scenarios and one system spanning the entire process".

1. Open architecture: Flexible adaptation, breaking the boundaries of test scenarios
In response to the characteristics of power electronics, such as "a wide range of product categories, significant parameter differences, and strong customization requirements", CPET ATE adopts an open design of modular hardware and programmable software: The hardware is fully compatible without restrictions: It supports various types of communication interfaces such as GPIB, RS-232/485, USB, LAN, I²C, etc., and can seamlessly connect with third-party testing instruments such as oscilloscopes, power analyzers, temperature chambers, and load meters, achieving "plug-and-play" resource integration.
The test process can be customized: Through a visual programming interface, it supports the free expansion of test items (such as customizing voltage/current/power parameters, setting trigger conditions for protection functions), flexible adjustment of test logic (delay control, interrupt loops, multi-step jumps), and is suitable for testing requirements of different products such as OBC vehicle chargers, photovoltaic inverters, and server power supplies.
Power coverage is comprehensive: The source load module, power module, and load module can be freely disassembled and combined, supporting testing in the power range of 0.1W to 200kW. From small-power LED driver power supplies to large-power vehicle high-voltage controllers, precise testing can be achieved without replacing the core equipment.

2. Precise Testing: Accurate and controllable, strengthening the defense line for product quality
The "reliability" of power electronic products depends on "test accuracy". CPET ATE ensures the authenticity of data with a micrometer-level testing capability:
Parameter accuracy reaches industry-leading standards: the test accuracy of core parameters such as voltage, current, power, efficiency, and ripple is ±0.1%, far exceeding the industry average of ±0.5%, ensuring the credibility of each test data.
Comprehensive detection dimensions: supports multi-point measurement (up to 64 channels for synchronous acquisition), dynamic power efficiency analysis, safety regulations/overcurrent/overvoltage/short-circuit protection testing, ripple noise spectrum analysis, etc., providing full-dimensional detection covering the entire process from product research and development verification (performance limit testing), mass production inspection (consistency verification), and factory full inspection (fault screening).

Extreme environments can be simulated: integrates a temperature control module, which can simulate extreme temperatures of -40°C to 150°C, combined with high-voltage impact (up to 5000V), current pulse (maximum 2000A) testing functions, accurately verifying the stability of the product under complex conditions.

3. Digitalization-driven: Efficient collaboration, accelerating cost reduction and efficiency improvement in the industry
In response to the pain points of traditional testing such as "a lot of manual intervention, low efficiency, and difficult data traceability", CPET ATE has achieved an efficiency leap through full-process automation and intelligent data analysis: Multi-channel parallel testing: It innovatively adopts an 8-in-1 parallel testing architecture, and a single device can test up to 3,000 sets of products per hour. Compared with traditional single-channel equipment, the efficiency is increased by more than 50%, significantly shortening the production test cycle.

Full-process unmanned operation: Equipped with the independently developed ATS intelligent testing software, it automatically completes the entire process of "product loading → parameter testing → data collection → report generation → defective product marking", without manual intervention, which can effectively reduce 30% of labor costs and avoid human operational errors.

Data intelligent loop: The system has an AI analysis module built-in, which can monitor 100+ parameters such as product voltage, current, temperature, and fault codes in real time. Through historical data comparison, it can achieve "defect early warning"; test data is automatically uploaded to the MES system, supporting full lifecycle traceability, helping enterprises optimize production processes and increasing test yield by 30%. 

Green and low-carbon design: Adopting energy feedback technology, the electricity generated during testing can be recycled, reducing energy consumption by 40%; the modular architecture saves 30% of space, balancing "efficiency improvement" and "cost optimization".

III. Industry-wide Scenario Implementation: From Vehicles to Military Industries, Developing Customized Testing Solutions
Relying on its core capabilities of "openness, precision and digital intelligence", CPET ATE has deeply penetrated into the ten core fields of power electronics, providing customized solutions for customers in various industries that are "scenario-appropriate, parameter-accurate and efficiency-leading":

1. New energy vehicle electronic components: Safeguarding the safety of "three-in-one" systems
Suitable for testing core components such as OBC vehicle chargers, motor controllers, and DC-DC converters. Supports 2000V high voltage and 1000A large current testing scenarios, and can simulate extreme temperature environments ranging from -40℃ to 150℃. Fault injection testing covers 300+ conditions (such as sudden voltage fluctuations and current surges), ensuring the reliability of the "three-in-one" system under complex road conditions. 

2. Photovoltaic Energy Storage: Verification of Performance under Complex Conditions
For photovoltaic inverters, PCS energy storage converters, and energy storage battery PACKs, we offer functions such as bidirectional charging and discharging simulation, MPPT maximum power point tracking testing, and power quality (THD) analysis. These features can precisely simulate scenarios such as grid fluctuations, enabling the verification of the conversion efficiency and stability of the products under various conditions. 

3. Industrial and Server Power Supply: Ensuring Stable Operation
We conduct comprehensive testing on a full range of power supply products including AC-DC, AC-AC, DC-AC, and DC-DC. These products support wide voltage input (85V to 2000V), high power output (up to 1000kW), and multiple protection functions (overvoltage, overcurrent, overtemperature). They are suitable for industrial switching power supplies, server redundant power supplies, and data center UPS, ensuring zero power interruption. 

4. LED Lighting and Military Aerospace: Meeting the Harsh Requirements of Specific Fields
LED Lighting: Provides testing for dimming curves, dynamic analysis of input power, and suppression of ripple noise for LED driver power supplies and vehicle lighting power supplies, meeting the needs for efficient mass production; 

5. Military and Aerospace: Adhering to GJB military standards, it supports extreme temperature variations ranging from -40°C to 120°C, high and low voltage shocks (50V to 1000V), and 1000-hour long-term stability tests, ensuring the reliability of military products in extreme environments.

IV. Digital and Intelligent Future: Leading the Upgrading of ATE Testing Industry through Technological Innovation
Currently, the power electronics industry is accelerating its iteration towards the "high-frequency, modular, and intelligent" direction, and has put forward new requirements for testing equipment, namely "higher precision, faster response, and stronger compatibility". CPET will continue to take technological innovation as the core driving force and focus on three major directions for breakthroughs:
Test precision upgrade: Develop an AI-based dynamic calibration algorithm to increase the accuracy of core parameter testing to ±0.05%, meeting the high-frequency testing requirements of the third-generation semiconductor (SiC/GaN) devices;
Intelligent level upgrade: Integrate digital twin technology to build a "virtual testing + physical verification" dual-closed-loop system, shortening the product development and testing cycle by 50%;
Scenarios expansion: Actively layout emerging fields such as hydrogen energy component testing and vehicle-mounted high-voltage battery testing, and build a "full-category power electronics testing" capability matrix.
In the future, CPET will continue to aim at "becoming the world's leading provider of power electronics ATE testing equipment", deepen technical collaboration with global customers, base itself in Shenzhen and serve the world, and use intelligent testing technology to help the power electronics industry improve quality, efficiency, and transformation and upgrading.

Conclusion
From "breaking the foreign monopoly" to "defining industry standards", CPET has spent fifteen years pushing ATE automatic testing technology from "following" to "leading"; from "a single device" to "a comprehensive solution", CPET's ATE equipment is becoming the "infrastructure" for the digital and intelligent upgrade of the power electronics industry.

In the wave of intelligent manufacturing, CPET is willing to adopt the concept of "enabling the industry through testing and leading the future through innovation", and work together with global power electronics enterprises. With precise, efficient and intelligent testing technologies, they will jointly lay a solid foundation for the high-quality development of the industry!