Energizing circuit for EAS marker deactivation device

Details Energizing circuit for EAS marker deactivation device Energizing circuit for EAS marker deactivation device

1998-07-06

2000-08-29

Hofsass, Jeffery A.

Communications: electrical

Condition responsive indicating system

Specific condition

3405723, 3405724, 3405725, 340551, 340556, G08B 1314

Patent

active

06111507&

ABSTRACT:
A device for deactivating a magnetomechanical EAS marker includes two coils and an energizing circuit for alternately driving the coils. One coil is driven for one cycle of an alternating power signal, and then the other coil is driven for one cycle, and this sequence is repeated. The driving signal is switched from one coil to the other at a point in time which corresponds to a zero crossing of the current level of the driving signal.

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