Current drive circuit

Details Current drive circuit Current drive circuit

1986-12-29

1988-01-19

Hix, L. T.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

Systems for magnetizing, demagnetizing, or controlling the...

H01H 4700, H01H 900

Patent

active

047207620

ABSTRACT:
Disclosed is an arrangement for controlling the current in a solenoid. A microcomputer is used to control three states of a 3-state output device (high impedance, high and low) which are designed to correspond to three current modes of the solenoid: no current, full current and reduced current. The 3-state output device produces a signal which is used to control a solenoid drive circuit. The drive circuit includes first means for generating a first drive signal in response to the 3-state signal being in the high impedance state or the low state, and second means for generating a second drive signal in response to the 3-state signal being in the high impedance state or the high state. The circuit further includes third means for coupling the first and second drive signals to the solenoid such that the current in the solenoid is controlled according to the states of the 3-state signal.

REFERENCES:
patent: 3227889 (1966-01-01), Paynter
patent: 4314305 (1982-02-01), Williams et al.
patent: 4326234 (1982-04-01), Shuey
patent: 4399483 (1983-08-01), Phelan
patent: 4453652 (1984-06-01), Merkel et al.
patent: 4473862 (1984-09-01), Hill
patent: 4599674 (1986-07-01), Ishikawa et al.

Affiliated with

Also associated with

Rating

Current drive circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Current drive circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Current drive circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-373897