Electricity: motive power systems – Motor-reversing – Armature or primary circuit control
Patent
1994-02-18
1996-09-03
Cabeca, John W.
Electricity: motive power systems
Motor-reversing
Armature or primary circuit control
318283, 318281, 318256, G05B 1128
Patent
active
055526837
ABSTRACT:
A reversible electric device M is connected in an H bridge with a first side formed by first top and bottom switches and a second side formed by second top and bottom switches. The current Im flowing in the device from the first side to the second side is determined cyclically with a given constant switching frequency. The difference .DELTA. is determined between Im and an instantaneous set point current. Each cycle is divided with a ratio R into a first part and a second part. R is determined and for each part a set point setting for the switches (diagonal mode or freewheel mode) is chosen according to the sign .DELTA., the sign of the set point current (or of Im) and the value of a preselected correlation law relating to .DELTA. the mean value of the voltage that can be applied to the device during each cycle.
REFERENCES:
patent: 4066945 (1978-01-01), Korte, Jr.
patent: 4514666 (1985-04-01), Suzuki
patent: 4562393 (1985-12-01), Loyzim et al.
patent: 5032772 (1991-07-01), Gully et al.
patent: 5150264 (1992-09-01), Nakabayashi
patent: 5257175 (1993-10-01), Skelton et al.
patent: 5272428 (1993-12-01), Spiegel et al.
Aerospatiale - Societe Nationale Industrielle
Cabeca John W.
Meehan Thomas A.
VanOphem John
VanOphem Remy J.
LandOfFree
Method of controlling a reversible electric device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of controlling a reversible electric device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of controlling a reversible electric device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1952621