Method and circuit for reducing transient currents

摘要

A circuit for reducing a potential difference between terminals of an open switch. A current source is arranged to supply charges to a capacitor through first and second switches. Charge is being supplied to the capacitor only when the first switch is closed. The current source and the capacitor are maintained at first and second reference potentials, respectively. The circuit further includes a voltage follower which has its output connected to the second switch and one of its inputs connected to the capacitor and the other input connected to its output. The output of the voltage follower is at the same potential as one terminal of the first switch so that when the second switch is closed, the two terminals of the first switch are at the same potentials as each other.