公开(公告)号：US3582706A

公开(公告)日：1971-06-01

申请号：US3582706D

申请日：1969-06-11

Applicant: COSSOR LTD A C

Inventor： THOMAS DAVID HARTLEY

IPC: H03K4/69 ,  H03K17/04 ,  H03K17/041 ,  H01J29/70

CPC classification number: H03K17/04 ,  H03K4/696 ,  H03K17/04113

Abstract: An electromagnet deflection system for CRT''s has an energystoring inductor connected between a voltage supply and a center tapping of a double-ended deflection coil. The system includes circuits responsive to the potentials at the ends of the coil, and when a rapid beam deflection occurs, the passage of one or other potential beyond a predetermined level is detected by the circuits which then cause energy to be removed from the inductors. Energy is replenished in the inductor either when a deflection is over, or in a modification having a switch regulator, simultaneously with the withdrawal of energy from the inductor.