Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Armature control by digital or combined analog and digital...
Patent
1997-10-01
2000-01-11
Ip, Paul
Electricity: motor control systems
Closed loop speed control system for dc motor with commutator
Armature control by digital or combined analog and digital...
318811, 318254, H02P 517
Patent
active
060144971
ABSTRACT:
A method and apparatus for determining the critical dwell time required between firing pulses generated by a PWM inverter to eliminate greater than twice overvoltage on motor supply lines. Critical dwell time is correlated with line parameters including inductance and resistance per unit length and is then provided to a controller to alter voltages provided to a motor to eliminate overvoltage.
REFERENCES:
patent: 3958131 (1976-05-01), Mozdzer
patent: 4417448 (1983-11-01), Horn et al.
patent: 4468725 (1984-08-01), Venturiny
patent: 4578746 (1986-05-01), Gyugyi et al.
patent: 5581169 (1996-12-01), Kerkman et al.
patent: 5625550 (1997-04-01), Leggate et al.
Kerkman Russel J.
Leggate David
Skibinski Gary L.
Allen-Bradley Company LLC
Horn John J.
Ip Paul
Jaskolski Michael A.
Leykin Rita
LandOfFree
Method and apparatus for determining a critical dwell time for u 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 and apparatus for determining a critical dwell time for u, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for determining a critical dwell time for u will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1468412