RESEARCH ON FERRORESONANT COMPUTER AND CONTROL DEVICES.
Technical note no. 1, 1 Apr 57-31 Mar 58,
CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS MADRID (SPAIN) INSTITUTO DE ELECTRICIDAD Y AUTOMATICA
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In Chapter 1, a list is given of fifty nine publications, which deal with the ferroresonance phenomenon and its application to circuits used in computers. The information found in them was classified into three groups, namely, Ferroresonant circuit analysis, Ferroresonant flip-flop analysis, and experimental ferroresonant circuits for application to computers. Chapter 2 is intended to establish a figure of merit for magnetic materials, with relation to ferroresonance. For this purpose, characteristics were first determined for the small-size cores available, working then in terms of reduced characteristics which are independent on core size and number of turns finally, a new figure of merit is introduced, from certain considerations on the phenomenon of ferroresonance. In Chapter 3, we give some original rules for two-branch flip-flop design, working from data which are easily obtained in the laboratory. Account is also given of experimental results obtained on two-branch, no-polarization flip-flops, and four-branch ring counters, operating under a single pulse sequence. In addition, a study is developed of the one-branch flip-flop, with polarization, working under two pulse sequences.
- Electrical and Electronic Equipment
- Computer Hardware