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Magnetic Trigger

IP.com Disclosure Number: IPCOM000098307D
Original Publication Date: 1960-Jul-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 25K

Publishing Venue

IBM

Related People

Lockhart, NF: AUTHOR

Abstract

The circuit has two stable states and performs the function of a binary trigger. The device consists of a square hysteresis loop, high remanence core 10, an input winding 11, an output winding 12 and a third winding 13. An aperture 14 separates the main body of the core into two legs and the winding 11 links the legs in opposite relations.

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Magnetic Trigger

The circuit has two stable states and performs the function of a binary trigger. The device consists of a square hysteresis loop, high remanence core 10, an input winding 11, an output winding 12 and a third winding 13. An aperture 14 separates the main body of the core into two legs and the winding 11 links the legs in opposite relations.

With the core initially saturated in the clockwise direction, an input in winding 11 causes the flux in the inner leg formed by the aperture to switch to a counter clockwise direction. Change of flux in the main body of the core induces a voltage in winding 13 which charges capacitor 15. When capacitor 15 discharges, the flow of current in winding 13 completes the flux reversal of the core.

The next input pulse switches the outer leg causing a clockwise reversal of flux in the main body. Again the capacitor 15 is charged and upon discharge, it completes the flux reversal of the core. Thus, successive input pulses cause the circuit to assume the two remanent states alternately.

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