Temporal drift

This represents the relationship between time and output voltage after power-on in circuits such as power supplies. It is evaluated based on the voltage variation from 30 minutes to 8 hours after powering on, assuming both input and output are at rated conditions. The first 30 minutes are excluded due to initial drift. Typically, the rate of increase in output voltage becomes more gradual over time and eventually stabilizes at a constant value. For output stability, it is preferable for the time to reach this constant value to be as short as possible.