H - Electricity – 02 – P
Patent
H - Electricity
02
P
H02P 8/24 (2006.01) B65H 29/00 (2006.01) H02K 37/00 (2006.01) H02P 8/12 (2006.01)
Patent
CA 2303606
A stepping motor (43) with an electrical activation circuit (46) for electrical control of its exciter windings (45a, 45b), is made as a driving motor and also as a braking motor with an adjustable braking action. The predefinable braking action is achieved passively without any current feed into the exciter windings. For this purpose a stipulated impedance (R) with an adjustable duty factor can be connected to each exciter winding (45a, 45b). One such stepping motor which is controlled in its braking action is used in an arrangement in which a strip or filament material can be transported braked from a storage.
Gaeumann Olivier
Gerber Georges
Monneron Pierre-Yves
Ascom Ag
de La Rue International Limited
Fetherstonhaugh & Co.
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