Inductive driver circuit effecting slow and fast current decay

Electricity: electrical systems and devices – Control circuits for electromagnetic devices – Systems for magnetizing – demagnetizing – or controlling the...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

123435, H03K 114

Patent

active

042258987

ABSTRACT:
An inductive load driver circuit including first and second switches and high and low impedance current decay paths. For the duration of a load actuation signal the first switch is responsive to the magnitude of the load current to complete and interrupt a first current path to the inductive load to cycle the load current between first and second levels. The second switch is enabled for the duration of the load actuation signal to complete a slow current decay path to the load when the first switch means interrupts the first current path. When completed the slow current decay path comprises a low impedance allowing the load current to decay slowly from the first current level to the second level to provide during such slow decay a load current sufficient to maintain actuation of the inductive load. The end of the load actuation signal disables the second switch to interrupt the slow current decay path and thereby require the load current to decay rapidly through the high impedance decay path. In one embodiment, the second switch comprises an SCR disabled by a final momentarily turn ON of the first switch.

REFERENCES:
patent: 3786344 (1974-01-01), Davis et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Inductive driver circuit effecting slow and fast current decay does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Inductive driver circuit effecting slow and fast current decay, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Inductive driver circuit effecting slow and fast current decay will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1172530

All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.