Integrated circuit for the protection of subscriber lines agains

Details Integrated circuit for the protection of subscriber lines agains Integrated circuit for the protection of subscriber lines agains

1986-11-04

1988-05-31

Paschall, M. H.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

361 91, 307631, 323231, H02H 904

Patent

active

047485337

ABSTRACT:
An integrated circuit for protecting subscriber lines against overvoltages includes a semiconductor body; a field-controllable thyristor having a gate electrode, an anode electrode and a cathode electrode, the gate electrode being insulated from the semiconductor body; a resistor connected between the cathode electrode and the gate electrode; a series circuit of Zener diodes connected between the gate electrode and the anode electrode, each of the Zener diodes having an anode electrode and a cathode electrode; and short circuit jumpers each being connected between the anode electrode and the cathode electrode of a respective one of at least part of the Zener diodes; at least part of the jumpers being interrupted corresponding to a predetermined breakdown voltage of the series circuit; and the thyristor having a larger breakdown voltage than the combined breakdown voltages of the Zener diodes of the series circuit of Zener diodes.

REFERENCES:
patent: 3573550 (1971-04-01), Baker, Jr.
patent: 4271445 (1981-06-01), Hartmann et al.
patent: 4323942 (1982-04-01), Hartman et al.
patent: 4400711 (1983-08-01), Avery et al.
patent: 4573099 (1986-02-01), Ganesan et al.
patent: 4651251 (1987-03-01), Thiele
Elektor, vol. 9, 1983, Jul./Aug., No. 7/8, "Emergency Mains Cut-Out".

Affiliated with

Also associated with

Rating

Integrated circuit for the protection of subscriber lines agains does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Integrated circuit for the protection of subscriber lines agains, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Integrated circuit for the protection of subscriber lines agains will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1877938