Burn-in Testing Techniques for Switching Power Supplies

Burn-in Testing Techniques for Switching Power Supplies

Highly accelerated stress screening (HASS) or “burn-in” is a common production step for switching power supplies designed for computers and servers. It is not uncommon to age and monitor thousands of power supplies at once. This application note provides an overview of the tests involved, including voltage monitoring and output cycling, as well as a test system configuration, and typical sources of error. ■