H - Electricity – 02 – P
Patent
H - Electricity
02
P
318/76
H02P 1/50 (2006.01) H02P 25/02 (2006.01)
Patent
CA 1050104
CONTROLLED POST-SYNCHRONIZING ON BRUSHLESS SYNCHRONOUS MOTORS ABSTRACT OF THE DISCLOSURE A static control system for applying excitation to synchronous motors, especially of the brushless type, by firing a semiconductor switch to apply direct current ex- citation to the field of the motor. A post-synchronization firing circuit is provided for firing the switch in response to the voltage across the switch if the motor pulls into synchronism before the switch is fired. A control circuit is provided for inhibiting the operation of the post-synchro- nizing firing circuit during subsynchronous operation.
262757
Cooper Richard (jr.)
Godwin Gurney L.
Heyne Carl J.
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