Overvoltage protection for input/output circuits

Details Overvoltage protection for input/output circuits Overvoltage protection for input/output circuits

1996-07-30

1997-05-27

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

361 83, H02H 904

Patent

active

056337736

ABSTRACT:
The invention relates to a method for protecting an I/O electronic circuit against overvoltages. The I/O circuit of the electronic circuit is provided with a current path (1) comprising a first diode (V1N), through which current path a current (ip) flows when the mains voltage is negative, and with a second current path (2) comprising a second diode (V1P) and a thyristor (T1), the thyristor (T1) being fired by a time-delay circuit charged by a positive voltage, and that the current flowing through the current paths (1,2) is used to trigger a protection device.

REFERENCES:
patent: 3790856 (1974-02-01), Hutchinson
patent: 4644437 (1987-02-01), Robe
patent: 4651251 (1987-03-01), Thiele
patent: 5034845 (1991-07-01), Murakami
patent: 5038244 (1991-08-01), Tuusa
patent: 5243488 (1993-09-01), Bernier et al.
patent: 5276582 (1994-01-01), Merrill et al.
"Crowbar Protection," Elektor Electronics, vol. 18, No. 202, 01 Jul. 1992, p. 51.

Affiliated with

Also associated with

Rating

Overvoltage protection for input/output circuits does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Overvoltage protection for input/output circuits, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Overvoltage protection for input/output circuits will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2333405