Surge protection circuitry

Details Surge protection circuitry Surge protection circuitry

1994-07-22

1997-04-29

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Transient responsive

361 56, H02H 320

Patent

active

056255217

ABSTRACT:
A three stage surge protection circuit for a three conductor power supply system. Each of the surge suppression stages include a varistor coupled across the line conductor and the neutral conductor, a varistor coupled across the neutral conductor and the ground conductor, and a varistor coupled across the line conductor and the ground conductor. The first and third surge suppression stages also include a Zener diode coupled across the line conductor and the neutral conductor. The invention also relates to a circuit for protecting electrical devices coupled to shielded cable. In this embodiment, a first surge suppression device, such as a varistor or a gas tube, is coupled across the signal conductor of a coaxial cable and ground, and second surge suppression device, again either a gas tube or a varistor, is coupled between the ground shield conductor of the shielded cable and ground.

REFERENCES:
patent: 4554608 (1985-11-01), Block
patent: 4587588 (1986-05-01), Goldstein
patent: 4628394 (1986-12-01), Crosby et al.
patent: 4675772 (1987-06-01), Epstein
patent: 4677518 (1987-06-01), Hershfield
patent: 4760485 (1988-07-01), Ari et al.
patent: 4802055 (1989-01-01), Beckermann
patent: 4807083 (1989-02-01), Austin
patent: 4901183 (1990-02-01), Lee
patent: 4903161 (1990-02-01), Huber et al.
patent: 5153806 (1992-10-01), Corey
patent: 5229909 (1993-07-01), Tessmer et al.
patent: 5412526 (1995-05-01), Kapp et al.
U.S. Patent Application Ser. No. 07/616,859, filed Nov. 21, 1990.

Affiliated with

Also associated with

Rating

Surge protection circuitry does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Surge protection circuitry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surge protection circuitry will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-710833