Circuit arrangement for operating an electrical machine

Details Circuit arrangement for operating an electrical machine Circuit arrangement for operating an electrical machine

2006-04-11

2006-04-11

Nguyen, Matthew V. (Department: 2838)

Electric power conversion systems

Current conversion

Including automatic or integral protection means

C363S098000, C363S132000

Reexamination Certificate

active

07027315

ABSTRACT:
A circuit arrangement for operating an electrical machine having an inductive component. The circuit arrangement includes an electrical switch (TR1through TR6) that applies a pulse-shaped signal (S1through S4) to the electrical machine. The free-running circuit also includes an electrical switch (TR1through TR6). A comparator (15) is provided which compares the free-running current flowing in the free-running circuit with a predefined threshold value and, if the current drops below the threshold value, provides a switching signal (S3A) that is used to deactivate the switch (TR1through TR6) in the free-running circuit. The circuit arrangement reduces both the electrical power loss in the circuit arrangement and the mechanical power loss in the electrical machine.

REFERENCES:
patent: 5428522 (1995-06-01), Millner et al.
patent: 5936371 (1999-08-01), Bolash et al.
patent: 6310469 (2001-10-01), Bentolila et al.
patent: 6518723 (2003-02-01), Oku
patent: 6548971 (2003-04-01), Gokturk
patent: 6748618 (2004-06-01), Darby et al.
patent: 42 29 440 (1994-03-01), None
patent: 198 41 341 (2000-03-01), None
patent: 0 444 404 (1991-09-01), None

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