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Single Shot Circuit

IP.com Disclosure Number: IPCOM000096886D
Original Publication Date: 1962-Jan-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 29K

Publishing Venue

IBM

Related People

Arnold, BH: AUTHOR

Abstract

The circuit responds to an input pulse of short duration to produce an output pulse of longer duration.

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Single Shot Circuit

The circuit responds to an input pulse of short duration to produce an output pulse of longer duration.

A positive input pulse transmitted through condenser 1 develops a voltage across coil 2. This is sufficient to pick up separate reed relays and thus close their respective normally open contacts 3 and 4. Closure of contact 3 delivers a supplemental or booster pulse via the condenser 1 to coil 2. When the voltage across coil 2 decays to the dropout voltage, the coil is de-energized and opens contacts 3 and 4.

Thus, an output pulse or signal is delivered as long as signal reed contact 4 remains closed. The duration of this signal depends on the value of condenser
1. To prevent an incorrect output, diode 5 prevents the voltage across coil 2 from increasing when the input pulse goes negative.

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