BBU Bidirectional DC Power Testing

When the Power Shelf loses power, the bidirectional DC power module (DC/DC converter) inside the BBU converts battery power to the voltage required by the server. Once the Power Shelf power is restored, it recharges the battery. Therefore, this power module must be capable of fast startup and output, meeting the server's dynamic load requirements. It must also precisely operate in constant current charging mode when charging the battery module. Chroma's 63200A Series Electronic Loads comply with the OCP ORV3 testing guidelines, verifying the specifications and reliability of these power modules in real-world applications. The 62000D Series Bidirectional DC Sources can simulate the output voltage of the Power Shelf and also emulate the battery modules inside the BBU for bidirectional current testing. Chroma integrates appropriate equipment and programs test items and workflows based on these DC power testing needs to form automated test systems. These systems are suitable for comprehensive validation during product development or for EOL testing on production lines. The recommended test system architecture and equipment are illustrated below.

New BBU Testing Option: Simulating Bidirectional Battery Power Conversion

The Chroma 62000D Series Programmable Bidirectional DC Power Supplies combine both power supply and load functionalities with a two-quadrant operation, allowing the device under test to feed energy back, effectively replacing batteries. This makes them ideal for BBU bidirectional DC power testing and battery charge-discharge applications. Additionally, the series offers automated programming features with LIST and STEP modes. The LIST mode supports up to 100 user-programmable sequences, with timing ranging from 5 ms to 15,000 seconds, including voltage/current slew rate control. The STEP mode allows setting start and stop voltages with operation times from 5 ms up to 99 hours, facilitating automated test applications. Available models range from low voltage 100V to high voltage 2000V, with power ratings from 6kW to 45kW, making the 62000D Series well-suited for BBU testing.