Initial Drift

In a power supply circuit, this indicates the fluctuation of the output voltage from the time the input is turned on during rated operation until the continuous operating temperature is reached. It typically shows the output voltage fluctuation during the 30 minutes after power-on. It is one of the indicators representing the stability of the output voltage. It is also a type of temperature drift, and the greater the fluctuation of the output voltage with respect to temperature change, the greater the initial drift.