Inductance L load actuating apparatus

Details Inductance L load actuating apparatus Inductance L load actuating apparatus

1996-11-06

1999-03-16

Ro, Bentsu

Electricity: motive power systems

Open-loop stepping motor control systems

318492, H02P 812

Patent

active

058834834

ABSTRACT:
In an actuation circuit for a stepping motor, one switching element and its associated coil are connected at one connecting point, while the other switching element and its associated coil are connected at another connecting point. A pair of switching circuits and a pair of rectifying circuits are provided between two connecting points. When one of switching elements is changed from an ON condition to an OFF condition, the voltage difference between two connecting points allows the current to flow in a designated direction through the switching circuit and the rectifying circuit combined, thereby releasing the energy stored in the coils.

REFERENCES:
patent: 3671826 (1972-06-01), Newell
patent: 3956678 (1976-05-01), Byrne et al.
patent: 4506207 (1985-03-01), Ferrari
patent: 4513236 (1985-04-01), Kikukawa et al.
patent: 4514675 (1985-04-01), Matumoto et al.

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