Drive system for switched inductive loads particularly for multi

Details Drive system for switched inductive loads particularly for multi Drive system for switched inductive loads particularly for multi

1975-12-17

1977-05-24

Hohauser, Herman C.

Electricity: motive power systems

Open-loop stepping motor control systems

318138, H02K 3700

Patent

active

040258599

ABSTRACT:
A drive system for a plurality of inductive loads comprises a load energizing circuit for each inductive load, means connecting a DC voltage across all the circuits in parallel, and a switching device in each circuit selectively actuatable to energize the loads according to a predetermined sequence. The system also includes an energy storage circuit for each load energizing circuit having a capacitor charged by the collapse of the magnetic field in its respective inductive load when the latter's switching device is switched-off. Further included is an energy transfer circuit for each load energizing circuit to transfer the energy stored in the capacitor of one inductive load by the collapse of the magnetic field therein, when its switching device is switched-on, to the load energizing circuit of the inductive load next switched-on by its switching device.

REFERENCES:
patent: 3659177 (1972-04-01), Gelenius
patent: 3885210 (1975-05-01), Burnett

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