Varistors with controllable voltage versus time response

Details Varistors with controllable voltage versus time response Varistors with controllable voltage versus time response

1981-06-01

1983-08-09

Barr, Josephine

Compositions

Electrically conductive or emissive compositions

Metal compound containing

252519, 252521, 338 20, 338 21, H01B 106

Patent

active

043977758

ABSTRACT:
A bismuth-free, zinc oxide based varistor exhibits a controllable overshoot/undershoot voltage characteristic. The varistor is composed of zinc oxide as the primary constituent, with smaller quantities of barium, boron, one or more transition elements and aluminum. Varistor voltage versus time response is dependent on the degree of aluminum doping. Typically, more than approximately 0.003 mole percent, but less than approximately 0.1 mole percent aluminum is employed, depending on desired voltage overshoot/undershoot characteristic.

REFERENCES:
patent: Re29731 (1978-08-01), Fishman et al.
patent: 3999159 (1976-12-01), Matsuura et al.
patent: 4094061 (1978-06-01), Gupta et al.
patent: 4127511 (1978-11-01), Klein et al.
patent: 4169071 (1979-09-01), Eda et al.
patent: 4184984 (1980-01-01), Levinson
patent: 4285839 (1981-08-01), Wong
patent: 4296002 (1981-10-01), Sokoly et al.
patent: 4297250 (1981-10-01), Gupta et al.

Affiliated with

Also associated with

Rating

Varistors with controllable voltage versus time response does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Varistors with controllable voltage versus time response, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Varistors with controllable voltage versus time response will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-586321