B - Operations – Transporting – 60 – L
Patent
B - Operations, Transporting
60
L
318/120, 346/30,
B60L 15/20 (2006.01) B60L 9/00 (2006.01) H02P 7/29 (2006.01)
Patent
CA 1152611
17 48,739 ABSTRACT OF THE DISCLOSURE There is disclosed a motor control chopper apparatus and method having a random frequency of opera- tion with a long term average deviation of substantially zero to reduce the average magnitude of the chopper appara- tus generated noise signals.
376515
Oldham And Company
Westinghouse Electric Corporation
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