A pulse forming line integrated with a charging transformer

摘要

A pulse forming line 11 comprises a ferromagnetic helical core winding 12 surrounded by an outer winding 13. A line charging transformer 18 is inserted between the core and outer windings. The conical secondary winding 19 is energised when a voltage is applied to the primary winding 20 by charging circuit 21, and the secondary winding 19 charges the pulse forming line 11 by transformer action. The primary winding 20 may be formed of foil enclosed in a ferromagnetic shielding. The pulse forming line has a load 16 and switch 17 connected between the core winding 12 and the outer winding 13. When the switch is closed, energy stored in the line is discharged to the load as a pulse. The pulse shape may be altered by varying the pitch of the helix.