Customer Case | Low-Ripple, High-Performance Power Supply Aids Global TOP Domain Controller Manufacturer in Efficient Testing

With electrification, intelligence, and connectivity becoming major global trends in automotive development, the proportion of automotive electronic and electrical components in vehicles is increasing year by year. Traditional distributed electronic and electrical architectures face challenges such as system complexity, high development costs, and difficulty in troubleshooting. Consequently, Domain Control Units (DCUs) have emerged as a solution. By integrating multiple functional modules into a single controller, DCUs enable data sharing and system control among these modules, enhancing system integration and performance, and enriching vehicle services and functionality. Currently, mainstream domain controllers include the Cockpit Domain, Powertrain Domain, Chassis Domain, Autonomous Driving Domain, and Body Domain.

Next, we will share the application of NGI's high-performance programmable DC power supply at Customer A, a leading global TOP domain controller manufacturer.

Customer Background

Customer A is a globally leading mobility technology company deeply focused on areas such as smart cockpits, intelligent driving, and connectivity services. It is one of China's largest automotive electronics enterprises. With over 30 years of experience in automotive electronics, Customer A is a core supplier to global leading automakers such as Volkswagen, Toyota, BYD, FAW, and Li Auto.

Testing Requirements

Based on preliminary technical discussions, the customer required testing for their newly developed domain controller, with high demands for power supply ripple, feature richness, output speed, and stability.

Power Supply Ripple

Excessive power supply ripple can easily cause jitter in the internal test signals of the domain controller, especially during high-speed signal verification, potentially leading to bit errors and affecting the accuracy of test results.

Feature Richness
Currently, standards commonly used for automotive components on the road primarily reference road vehicle-related standards: GB/T 28046.2-2019 / DIN 40839-1-1992 / ISO 16750-2:2023 / ISO 21848-2005 / LV-124 / LV-148 / SAE J1113-11.

Before domain controller products are launched, they typically require testing and certification according to mainstream standards from various global regions and automakers, including ISO 16750-2:2023, LV124, etc. Therefore, the test power supply needs to be able to integrate relevant automotive standard waveforms for pre-testing, ensuring product performance before certification.

Output Speed and Stability
Domain controller testing requires high-speed (≤10ms) DC power supply products to simulate the controller's operation under different voltage conditions. Traditional test power supplies have significant shortcomings in the key indicator of voltage rise time, typically in the range of tens to hundreds of ms. Furthermore, long-term testing places high demands on the stability of the power supply output.

Through multiple in-depth technical exchanges and extended prototype trials, the customer selected the NGI N36200 series wide-range programmable DC power supply, which perfectly matched their initial requirements:

Low Ripple Noise
Power supply ripple ≤ 0.1%, ensuring pure and reliable power for the domain controller and reducing interference with test signals.

Rich Features, Supports Automotive Waveform Simulation Testing
Standard equipped with automotive waveform simulation function, meeting pre-test requirements for standards like ISO 16750-2 and LV124; voltage levels cover 20V to 1500V, compatible with testing 12V/24V/48V automotive component products.

High Speed and Stability, Ensuring Long-Term Test Data Consistency
By utilizing high-performance components and optimizing system airflow and thermal design, voltage/current rise/fall times are <10ms, with 8-hour current stability (after 30min warm-up) <0.01%.

Compact Size, Multiple Options
Ultra-compact size, 2.5kW power in just 1U half-rack, saving over 50% space compared to traditional test power supplies, effectively conserving customer test space.

N36200 Series Voltage 80V Model Specifications and Description: