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Parallel Connected Current Injection and Gate

IP.com Disclosure Number: IPCOM000070264D
Original Publication Date: 1978-Aug-01
Included in the Prior Art Database: 2005-Feb-21

Publishing Venue

IBM

Related People

Authors:
Jones, HC Gheewala, TR [+details]

Abstract

This article discloses in Fig. 1 a novel AND circuit 1 comprising a pair of three-junction damped interferometers A and B, shunted by load RL, which has better gain and speed than known AND circuits. The principle of operation of circuit 1 is shown in Fig. 2. A control current is applied to device A or B via control lines 2. Assuming current is applied to device A, this device switches along a load line essentially defined by resistor R(s), and current is transferred from device A into device B. Device A, in general, switches slowly, since I(G) is rather low compared to its I(mo). However, device B switches quite fast upon the application of a signal to its control line 2, since the total gate current in this device is now high.