Temporal drift

In power supply circuits and similar systems, this represents the relationship between time and output voltage after the power is turned on. It is evaluated based on the voltage fluctuation from 30 minutes to 8 hours after power-on, with the input and output at rated conditions. The first 30 minutes are excluded due to initial drift. Generally, the rate of increase in output voltage becomes more gradual over time and eventually reaches a constant value. For output stability, it is desirable that the time required to reach this constant value be as short as possible.