(1) Voltage regulation coefficient

Absolutely correct pressure stability coefficient K
Represents the ratio of output DC voltage change △Uo to input grid voltage change △Ui when the load remains unchanged, namely K=△Uo/△Ui.
Relative stability coefficient S
Represents the relative change of voltage △Uo/Uo relative change of voltage △Ui/Ui of input grid voltage when the load remains unchanged, that is, S=△Uo/Uo/△Ui/Ui.
(2) Grid adjustment rate
Represents the relative variation of the output voltage of the stabilized power supply when the input power grid voltage varies by +/-10% from the rated value, and is sometimes expressed in absolute pairs.
(3) Voltage stability
The load current remains at any value within the rated range, and the relative change in output voltage due to changes in the input voltage over a specified range is called the voltage stability of the voltage regulator.

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