Power source apparatus for an electric flash lamp.

摘要

A power source apparatus for an electric flash lamp has a main capacitor (2) connected in parallel with a flash lamp (10) for feeding discharge current. The main capacitor is charged with a tripler voltage supplied from a voltage trippler circuit (4) connected to the main capacitor. A triac (18) is inserted between the voltage tripler circuit and an AC power source (12). The triac (18) is energized at successively shortening periods under control of a soft start circuit (6), so that the conductive period of the triac gradually becomes longer.