H - Electricity – 02 – P
Patent
H - Electricity
02
P
318/108, 318/84
H02P 7/29 (2006.01) H02M 3/157 (2006.01)
Patent
CA 1181480
ABSTRACT OF THE DISCLOSURE A programmed microprocessor controller chopper apparatus for an electric motor is responsive to an oper- ating condition of the chopper such as at least one of the commutation capacitor charge voltage and the level of motor current for determining the desired commutation circuit operation for that chopper apparatus in relation to the provision of an OFF control pulse in relation to an ON control pulse every cycle of the microprocessor program operation.
394185
Franz James H. Jr.
Wesling Henry J.
Oldham And Company
Westinghouse Electric Corporation
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