| 摘要 |
A device and a method for refreshing the voltage of a circuit line that provides the capability of bringing the circuit line to a ground voltage or to a first voltage. The method provides storing the circuit line voltage in a capacitor; and controlling, by means of the stored voltage, a switch connecting the circuit line to a second voltage of absolute value greater than the first voltage, whereby the circuit line is set to the second voltage if, during the step of storing, the circuit line was at the first voltage.
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