Electricity: electrical systems and devices – Safety and protection of systems and devices – Load shunting by fault responsive means
Patent
1995-03-22
1998-07-21
Gaffin, Jeffrey A.
Electricity: electrical systems and devices
Safety and protection of systems and devices
Load shunting by fault responsive means
361111, 361119, H02H 320, H02H 900
Patent
active
RE0358541
ABSTRACT:
A programmable protection circuit comprises three identical units connected between a common point (C) and a first conductor (A), a second conductor (B) and ground (M). Each unit comprises the anti-parallel arrangement of a thyristor (T) and a diode (D), a bipolar transistor (TR) being connected between the gate and anode of the thyristor, the anodes of the thyristors being connected to the common point and the base terminal of each unit constituting a programmation terminal and being connected to a device defining a voltage threshold. Each device defining a voltage threshold is a zener diode (Z1, Z2, Z3) connected between each base terminal and the common point.
REFERENCES:
patent: 4282555 (1981-08-01), Svedberg
patent: 4390919 (1983-06-01), Lesinski
patent: 4695916 (1987-09-01), Satoh et al.
patent: 5274524 (1993-12-01), Pezzani et al.
patent: 5293112 (1994-03-01), Takahashi
patent: 5349286 (1994-09-01), Marshall et al.
"A Switching Regulator and Lightning Protector for a Subscriber Line Interface Circuit," Chen, R.K.; Lerch, T.H., Spires, D.A. IEEE Journal of Solid-State Circuits, vol. SC-21, No. 6, p. 947 (1986).
"A Solid-State Solution (Thyristors for CO Surge Protection)," Thrasher, M. Telephony, vol. 216, No. 24, p. 46 (1989).
"Protection of Subscriber Line Interface Circuits, " Kobayashi, T., Endo, H. NEC Research and Development, No. 86, p. 81 (1987).
"Thyristor Structures for Lightning Protection in Telecommunications," Maytum, M.J. Lightning Protection Seminar Proceedings (ERA Report).
"A Programmable Lightning Protector for Subscriber Line Interface Circuit (SLIC)," Pezzani, R.; Bernier, E.; Bremond, A. EPE-MADEP Symposium on Materials and Devices (1991).
"Breakover Diodes for Protection of Telephone Equipment," Haslam, D.F.; Hill, M.J. Electronic Componenets and Applications, vol. 8, No. 2, p. 81 (1987).
"Protection of Subscriber Equipment Against Transient Line Voltages," Feuell, E.A. Telecommunications, vol. 10, No. 9, p. 55 (1976).
"Lighting Surge Protection Design for Subscriber Line Interface Circuits in D70 Digital Switching System," Deguchi, F.; Yamada, H. Review of the Electrical Communication Laboratories, vol. 33, No. 2, p. 332, (1985).
Bernier Eric
Pezzani Robert
Bachand Richard A.
Gaffin Jeffrey A.
Galanthay Theodore E.
Jackson Stephen W.
Jorgenson Lisa K.
LandOfFree
Programmable protection circuit and its monolithic manufacturing does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Programmable protection circuit and its monolithic manufacturing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Programmable protection circuit and its monolithic manufacturing will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1636932