A transient protection circuit.

摘要

A transient protection circuit for a d.c. voltage supply has a means such as a capacitor (C2) for absorbing transient energy developed on lines (11,12) of the supply. In order to provide such protection without loading the supply with a permanently connected large capacitor the means for absorbing transient energy (C2) is indirectly connected in parallel with the supply lines (11,12) via a voltage responsive element (D1) which conducts during the occurrence of a transient.