Electricity: motive power systems – Reciprocating or oscillating motor – Energizing winding circuit control
Patent
1979-05-11
1981-08-25
Truhe, J. V.
Electricity: motive power systems
Reciprocating or oscillating motor
Energizing winding circuit control
318254, 318439, 310 49R, 310156, H02P 602
Patent
active
042861985
ABSTRACT:
An electronic power supply device for driving a D.C. commutatorless motor utilizes a plurality of driving coils for supplying power to the motor and at least one control coil, magnetically interconnected with the driving coils, to generate a control signal in response to operation of the motor such that a power transistor, having an output connected to the driving coils, and an input controlled by the at least one control coil to provide the driving current to the driving coils. A Zener diode having a nominal breakdown voltage lower than the breakdown voltage of the power transistor is interconnected therewith.
In modifications of the power supply device a flip-flop circuit, controlled by a control signal generated by the at least one control coil, controls the commutation of the motor by controlling the conduction of the power transistor. Speed regulation and temperature compensation of the electronic power supply device are obtained by the use of potentiometer feedback from an output of the at least one control coil and a temperature responsive resistance, respectively.
REFERENCES:
patent: 3883633 (1975-05-01), Kohler
patent: 4156168 (1979-05-01), Vogel
Truhe J. V.
Valbrev S.A.R.L.
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