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Voltage Compensated Driver Detector for Magnetostrictive Delay Lines

IP.com Disclosure Number: IPCOM000094175D
Original Publication Date: 1966-Jun-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 39K

Publishing Venue

IBM

Related People

Krysiuk, G: AUTHOR [+2]

Abstract

The sketch shows an NRZ magnetostrictive delay line driver-detector system which is substantially independent of power supply variations. Delay line drivers such as 1 provide a drive current, the value of which is a direct function of the power supply level. To compensate for this characteristic, a voltage divider comprising resistors 2 and 3 in the detector 4 is connected across the terminals of the same power supply. The divider varies the threshold bias levels of detector amplifiers 5, 6 and 7, 8 as a direct function of the supply level. When driver 1 is energized to apply a drive pulse to delay line 9, the latter applies an output pulse to detector 4 by way of sense amplifier 10 and transformer 11.

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Voltage Compensated Driver Detector for Magnetostrictive Delay Lines

The sketch shows an NRZ magnetostrictive delay line driver-detector system which is substantially independent of power supply variations. Delay line drivers such as 1 provide a drive current, the value of which is a direct function of the power supply level. To compensate for this characteristic, a voltage divider comprising resistors 2 and 3 in the detector 4 is connected across the terminals of the same power supply. The divider varies the threshold bias levels of detector amplifiers 5, 6 and 7, 8 as a direct function of the supply level. When driver 1 is energized to apply a drive pulse to delay line 9, the latter applies an output pulse to detector 4 by way of sense amplifier 10 and transformer 11. If the pulse exceeds the threshold set by resistors 2 and 3, it is applied to amplifiers 5 or 7 depending upon its polarity to switch them off. Each time amplifiers 5 and 7 are switched off, they change the stable state of trigger 12.

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