Electricity: motive power systems – Induction motor systems – Primary circuit control
Patent
1998-01-22
1999-11-23
Salata, Jonathan
Electricity: motive power systems
Induction motor systems
Primary circuit control
318434, 363 41, H02M 112
Patent
active
059906588
ABSTRACT:
An apparatus for receiving and modifying a PWM trigger signal such that consecutive ON and OFF periods have durations at least as long as a critical dwell time where the critical dwell time is the minimum time required to avoid greater than twice overvoltage. The trigger signals are modified by, each time a trigger signal changes from low to high, providing a minimum pulse signal which remains high for the greater of a critical dwell time or the time over which the trigger signal remains high, when the minimum pulse signal changes from high to low, providing a maximum pulse signal which remains low for a critical dwell time, adding the maximum and minimum pulse times using a logical AND gate and providing the output of the AND gate as a modified trigger signal.
REFERENCES:
patent: 4468725 (1984-08-01), Venturini
patent: 4488216 (1984-12-01), Gyugyi et al.
patent: 4578746 (1986-03-01), Gyugyi et al.
patent: 4739240 (1988-04-01), MacMinn et al.
patent: 4833586 (1989-05-01), Inaba et al.
patent: 5610806 (1997-03-01), Blasko et al.
patent: 5671130 (1997-09-01), Kerkman et al.
Kerkman Russel J.
Leggate David
Skibinski Gary L.
Allen-Bradley Company LLC
Horn John J.
Jaskolski Michael A.
Miller John M.
Salata Jonathan
LandOfFree
Apparatus for controlling reflected voltage on motor supply line does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for controlling reflected voltage on motor supply line, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for controlling reflected voltage on motor supply line will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1225677