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G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
G04C3/04—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance
G04C3/06—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance
G04C3/065—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance the balance controlling gear-train by means of static switches, e.g. transistor circuits
G04C3/069—Driving circuits using a single coil for detection and driving purposes
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Physics & Mathematics
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Engineering & Computer Science
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Electromagnetism
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Power Engineering
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General Physics & Mathematics
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Electromechanical Clocks
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Reciprocating, Oscillating Or Vibrating Motors
(AREA)