Electronically commutated motor

Details Electronically commutated motor Electronically commutated motor

2005-06-14

2005-06-14

Ip, Paul (Department: 2837)

Electricity: motive power systems

Limitation of motor load, current, torque or force

C318S254100, C318S434000, C318S599000, C363S098000, C701S042000

Reexamination Certificate

active

06906486

ABSTRACT:
An electronically commutated motor has a rotor (108), a stator having a stator winding arrangement (102), and a full bridge circuit (137) for controlling the current (i1, i2) in the stator winding arrangement (102); in the full bridge circuit (137), first semiconductor switches (114, 130) are connected to a first DC supply lead (116) and second semiconductor switches (132, 136) to the other DC supply lead (122), said second switches being bidirectionally conductive of current in the switched-on state. The motor has an arrangement (172, 198, 188) for opening the first semiconductor switches (114, 130) and for closing the second semiconductor switches (132, 136) during a predetermined operating state. An arrangement (202) is provided for monitoring the direction of the current (i1, i2) which flows in the second semiconductor switches (132, 136) when the latter are conductive during the predetermined operating state.

REFERENCES:
patent: 3873897 (1975-03-01), Müller
patent: 4924158 (1990-05-01), Kelley et al.
patent: 5202830 (1993-04-01), Tsurumiya et al.
patent: 5436547 (1995-07-01), Nagai et al.
patent: 5486743 (1996-01-01), Nagai
patent: 5642247 (1997-06-01), Giordano
patent: 5708578 (1998-01-01), Stoddard et al.
patent: 5732373 (1998-03-01), Endo
patent: 5801504 (1998-09-01), Endo et al.
patent: 5814957 (1998-09-01), Yoshida
patent: 5912539 (1999-06-01), Sugitani et al.
patent: 5920174 (1999-07-01), Kawada et al.
patent: 6034493 (2000-03-01), Boyd et al.
patent: 6212447 (2001-04-01), Kohge et al.
patent: 6226580 (2001-05-01), Noro et al.
patent: 6390064 (2002-05-01), Marumoto et al.
patent: 6559689 (2003-05-01), Clark
patent: 6563284 (2003-05-01), Teutsch et al.
patent: 6678177 (2004-01-01), Asano et al.
patent: 2001/0048278 (2001-12-01), Young et al.
Microchip Technology, Inc., Chandler, AZ Datasheet on microcontroller PIC16C72 (8 pp., 1998).
Patent Abstracts of Japan, abstract of JP 09-086 422-A, ENDO + /Nippon Seiko, publ. Mar. 31, 1997, based on application 07-269 041 filed Sep. 25 1995 (vol. 1997, No. 7).

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