Browse Prior Art Database

Relay Contact Bypass

IP.com Disclosure Number: IPCOM000092636D
Original Publication Date: 1966-Dec-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 40K

Publishing Venue

IBM

Related People

Hollstein, CP: AUTHOR

Abstract

This solid state circuit connecting driver DRVR and receiver RCVR is used to eliminate false signals due to contact bounce of a relay during closing. The signal line is driven to ground at one end and terminated to a positive voltage supply at the other so that the current flows in one direction only.

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Relay Contact Bypass

This solid state circuit connecting driver DRVR and receiver RCVR is used to eliminate false signals due to contact bounce of a relay during closing. The signal line is driven to ground at one end and terminated to a positive voltage supply at the other so that the current flows in one direction only.

Bipolar bypass transistor 10 is connected to the terminals of relay contact 12. Control transistor 14 is switched by applying + on potential to the base electrode at relay closing time. This potential can be removed after the relay maintains line contact.

DCI and II circuit modules 16 and 18 are used. The arrangements comprising transistors 10' and 14', and 10'' and 14'' for contacts 12' and 12'' are equivalent circuits of the modules 16 and 18 for controlling an arrangement.

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