Pulsed-energy controllers and methods of operation thereof

Details Pulsed-energy controllers and methods of operation thereof Pulsed-energy controllers and methods of operation thereof

1998-02-20

1999-12-21

Gaffin, Jeffrey

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

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

3611691, 361191, 123490, H01H 4732

Patent

active

060057637

ABSTRACT:
Pulsed-energy controllers and methods of operation thereof for driving inductive loads such as the actuator coil or coils of electromechanical actuators. The controllers utilize an inductor through which an initial current is established through a first circuit. The inductor is then switched across the actuator coil or other inductive load in a second circuit and the first circuit is opened. The back EMF of the inductor, limited by a high voltage protective device, causes a rapid rise in the current through the actuator coil, the rise being much faster than could be achieved by merely coupling the supply voltage, as used to establish the current in the inductor, directly to the actuator coil. By proper selection of the controller circuit and its parameters, the initial rapid current rise may continue to a current higher than a steady state current, after which the current will decrease to or toward the lower steady state current until the current pulse is terminated. Various embodiments are disclosed.

REFERENCES:
patent: 3683239 (1972-08-01), Sturman
patent: 3700985 (1972-10-01), Applequist
patent: 3743898 (1973-07-01), Sturman
patent: 3821967 (1974-07-01), Sturman et al.
patent: 4065096 (1977-12-01), Frantz et al.
patent: 4107546 (1978-08-01), Sturman et al.
patent: 4108419 (1978-08-01), Sturman et al.
patent: 4114647 (1978-09-01), Sturman et al.
patent: 4355619 (1982-10-01), Wilkinson
patent: 4409368 (1983-10-01), Sturman et al.
patent: 4648580 (1987-03-01), Kuwano et al.
patent: 4811221 (1989-03-01), Sturman et al.
patent: 5108070 (1992-04-01), Tominaga
patent: 5251659 (1993-10-01), Sturman et al.
patent: 5293551 (1994-03-01), Perkins et al.
patent: 5402760 (1995-04-01), Takeuchi et al.
patent: 5460329 (1995-10-01), Sturman
patent: 5598871 (1997-02-01), Sturman et al.
patent: 5640987 (1997-06-01), Sturman
patent: 5644280 (1997-07-01), Wilson et al.
patent: 5796223 (1998-08-01), Ohtsuka et al.

Affiliated with

Also associated with

Rating

Pulsed-energy controllers and methods of operation thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pulsed-energy controllers and methods of operation thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pulsed-energy controllers and methods of operation thereof will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-511362