ATX v3.0 Drives Upgrades in Power Supply Testing Equipment
The ATX v3.0 standard for power supply testing has introduced stricter transient response requirements. Major manufacturers like Keysight, Tektronix, Rohde & Schwarz, and Chroma are updating their oscilloscopes and electronic load devices to meet these new criteria.
ATX v3.0 demands more precise testing, pushing current equipment to its limits. Transient load testing, a key aspect of evaluation, involves applying sudden loads of 10 A at +12 V, 5 A at +5 V, and 5 A at +3.3 V for 200 ms, repeated 50 times at 5 Hz. This simulates the activity of CPU, GPU, and other system components under changing loads.
During these tests, voltage drops are measured to ensure all outputs remain within ATX specification limits. Manufacturers are working to ensure their equipment, such as oscilloscopes and electronic load devices, can accurately perform these transient tests.
The ATX v3.0 standard's stricter transient response requirements are driving updates in testing equipment. Major manufacturers are adapting their products to meet these new criteria, ensuring accurate evaluation of power supply performance under changing loads.
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