Electricity: motive power systems – Synchronous motor systems – Armature winding circuits
Patent
1983-09-13
1985-05-21
Smith, Jr., David
Electricity: motive power systems
Synchronous motor systems
Armature winding circuits
318722, 363 37, 363138, H02P 540
Patent
active
045189080
ABSTRACT:
A control circuit of a synchronous motor with two induction windings, including an electrical power supply assembly (5), two oscillators (2,3) whose outputs are connected respectively to the windings of the motor (1), an intermediary circuit (4), connected on one side to the power supply and on the other to the oscillators, and a central unit for control of the thyristors.
The electrical power supply assembly (5) delivers a current of a given unique polarity, and has its output terminals connected by means of a freewheel branch including at least one freewheel diode (6) whose cathode is connected to the positive terminal. The intermediary circuit includes, in combination:
REFERENCES:
patent: 3775662 (1973-11-01), Compoly et al.
patent: 4288732 (1981-09-01), Wilson et al.
Jeumont-Schneider Corporation
Smith Jr. David
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