APPLICATION OF PNPN TRIODES TO MAGNETIC CORE MEMORIES

摘要

Magnetic core switching arrays require a large current drive for fast operation. Series driving circuits using tubes or transistors dissipate excessive power. A shunt current pulsar using tranistors (PNPN triodes) appears promising as an efficient driver. Trinistors have two states, ON (low impedance) and OFF (high impedance). Base current may be used to trigger the trinistor to either state. The turn-off time depends on base current and collector current. Increasing collector current increases turn-off time, and increasing base current decreases turn-off time. Trinistors, in their present state of development, were found to be unsuitable for use as drivers for magnetic cores.