Interface circuit for low power drain microprocessor-based therm

Details Interface circuit for low power drain microprocessor-based therm Interface circuit for low power drain microprocessor-based therm

1991-09-26

1993-03-09

Gaffin, Jeffrey A.

Electrical transmission or interconnection systems

Switching systems

Condition responsive

307126, 307140, H01H 4700

Patent

active

051928744

ABSTRACT:
A microprocessor-based power switching circuit responds to a common form of noise by disconnecting power from the controlled apparatus. The microprocessor provides an alternating voltage when power is to be provided, and the alternating voltage is converted by a detector circuit to a voltage close to ground which cuts off a transistor. When the transistor is cut off, an interface circuit places a thyristor which performs the actual power switching, into conduction. Noise on the base of the transistor can only drive it into conduction which then puts the thyristor into non-conduction.

REFERENCES:
patent: 4213061 (1980-07-01), Conner
patent: 4369377 (1983-01-01), Dytch
patent: 4832594 (1989-05-01), Youtz
patent: 4842510 (1989-06-01), Grunden et al.
patent: 4865538 (1989-09-01), Scheele et al.
patent: 4872828 (1989-10-01), Merzwinski et al.
patent: 4955806 (1990-09-01), Grunden et al.

Affiliated with

Also associated with

Rating

Interface circuit for low power drain microprocessor-based therm does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Interface circuit for low power drain microprocessor-based therm, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interface circuit for low power drain microprocessor-based therm will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-212555