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Transistor Switching Circuit

IP.com Disclosure Number: IPCOM000096946D
Original Publication Date: 1962-Feb-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 31K

Publishing Venue

IBM

Related People

Pingry, CO: AUTHOR

Abstract

Transistor 1 has its emitter e connected to an input terminal 3 under control of a switch 4, 6. Its base b is subjected to magnetic pulses intermittently applied by pulse generator 18. Generator 18 is a rod 26 of magnetic material rotating around axis 27. It produces intermittent pulses 28 when passing the magnet 19.

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Transistor Switching Circuit

Transistor 1 has its emitter e connected to an input terminal 3 under control of a switch 4, 6. Its base b is subjected to magnetic pulses intermittently applied by pulse generator 18. Generator 18 is a rod 26 of magnetic material rotating around axis 27. It produces intermittent pulses 28 when passing the magnet 19.

If switch 4, 6 is closed when a magnetic pulse 28 is applied, a pulse appears at output terminal 15. A second output pulse also appears on line 32. Transistor 1 is inoperative, when subjected either to a data signal by switch 4, 6 or to pulse 28 alone.

When a plurality of the circuit (shown in the rectangle 50) is connected in a system with the pulse generators operating to deliver pulses serially to the base electrodes and, with the return circuits of all pulse generators connected commonly to point 22, an AND output at a collector electrode indicates operation of one of the circuits. An OR output at the common return circuit of the pulse generators identifies the transistor circuit operating.

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