Control device for the actuation of switchgears according to a t

Details Control device for the actuation of switchgears according to a t Control device for the actuation of switchgears according to a t

1994-12-19

1997-05-13

Voeltz, Emanuel T.

Boots, shoes, and leggings

364550, 371 24, 371 48, 371 72, 395750, 373108, 110185, G07F 1100

Patent

active

056298790

ABSTRACT:
The information on the state of switchgears (2.1;2.2) appearing on call circuits in the form of analog low-voltage signals is conveyed in parallel to a circuit block (4). The information is digitalized at given points in time in the form of binary values "0" or "1" and is transmitted in series to a microprocessor (1). Preferably the circuit block (4) comprises at least one shift register in cascade connection. Call circuits are coupled to the circuit block solely via a high-impedance resistor (3.1;3.2). The circuit block (4) is supplied by a voltage supply circuit (5) so that when one of the switchgears (2.1;2.2) is in the open state, a current flows alternately via one of the protection diodes (D1S.1,D2S.1;DIS.2,D2S.2) of the circuit block (4), and does not do so when one of the switchgears (2.1;2.2) is in the closed state. To ascertain whether a voltage (U.sub.1,U2) at the input (4.1;4.2) of the circuit block (4) is D.C. or A.C., the microprocessor (1) effects a multiple scanning within a time period of one to two network half-waves and makes an analysis of values detected consecutively in time. The control device is especially well suited for the control of art oil or gas burner in continuous operation.

REFERENCES:
patent: 4777479 (1988-10-01), Hinckley
patent: 4974179 (1990-11-01), Patton et al.
patent: 5497380 (1996-03-01), Bott et al.

Affiliated with

Also associated with

Rating

Control device for the actuation of switchgears according to a t does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Control device for the actuation of switchgears according to a t, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control device for the actuation of switchgears according to a t will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1390533