Browse Prior Art Database

Stable, Self Maintaining Two Element Neon Lamp Circuit

IP.com Disclosure Number: IPCOM000094586D
Original Publication Date: 1965-Mar-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 21K

Publishing Venue

IBM

Related People

Nassimbene, EG: AUTHOR

Abstract

The neon lamp circuit has stable characteristics and provides high light output. Two-element neons which give high light output are unstable and neons which are stable give low light output. Thus, lamp 10 having stable characteristics is placed in serves with high light output lamp 11 so that stable lamp 10 serves as the trigger to light lamp 11.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 2

Stable, Self Maintaining Two Element Neon Lamp Circuit

The neon lamp circuit has stable characteristics and provides high light output. Two-element neons which give high light output are unstable and neons which are stable give low light output. Thus, lamp 10 having stable characteristics is placed in serves with high light output lamp 11 so that stable lamp 10 serves as the trigger to light lamp 11.

The bias voltage at terminal 12 must not exceed the sum of the breakdown voltages of lamps 10 and 11. Such voltage at 12 must be greater than the sum of the maintaining voltage of lamp 10 and the breakdown voltage of lamp 11. Thus, the lamps are not fired by mere application of the bias voltage at terminal 12, but when lamp 10 is fired, lamp 11 is automatically fired. The bias voltage at terminal 13 must be selected so that a breakdown does not occur in either lamp. That is, the voltage must not be greater than the breakdown voltage of lamp 10 alone. It must be high enough such that the voltage difference between the voltage at terminal 12 and the voltage at terminal 13 is not greater than the breakdown voltage of lamp 11.

The application of an input pulse at triggering point 14 ignites lamp 10. The conduction from terminal 13 via resistor 15 and lamp 10 lowers the voltage at terminal 14, thus igniting lamp 11.

1

Page 2 of 2

2

[This page contains 1 picture or other non-text object]