Fly-back converter circuit esp. in current transformer device for electronic release circuit with switched-mode power supply (SMPS)

摘要

A fly-back converter circuit (1) fed from, in particular a high-resistance voltage source, and including a transformer (15), a switching transistor (16) which is controlled by a pulse-width modulator circuit (17), and having one output (CA). In relation to the input terminals (CL) of the fly-back converter, the primary circuit (ISa) of its transformer (15) is electrically connected in series to the secondary-side output (CA) (lines 21/22).