Title:
DRIVING METHOD OF SYNCHRONOUS MOTOR AND CARRIER
Document Type and Number:
WIPO Patent Application WO/2004/102784
Kind Code:
A1
Abstract:
A two-phase synchronous motor (SM) drive coupled with a carry roller (4) for carrying a work (W) is connected with an inverter circuit (21). The phase A excitation coil (Ca) of the two-phase synchronous motor (SM) has one end connected with the phase B excitation coil (Cb) thereof. The first input terminal (P1) of the phase A excitation coil (Ca) is fed with an AC power supply voltage of phase U. The second input terminal (P2) of the phase B excitation coil (Cb) is fed with an AC power supply voltage of phase V. The third input terminal (P3) connected with the phase A excitation coil (Ca) and the phase B excitation coil (Cb) is fed with an AC power supply voltage of phase W.
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Inventors:
FUKUOKA MITSUHIRO (JP)
Application Number:
PCT/JP2003/006069
Publication Date:
November 25, 2004
Filing Date:
May 15, 2003
Export Citation:
Assignee:
WATANABE MACHINERY MFG CO LTD (JP)
FUKUOKA MITSUHIRO (JP)
FUKUOKA MITSUHIRO (JP)
International Classes:
B65G13/06; H02M7/48; H02P6/22; H02P6/30; H02P25/02; (IPC1-7): H02P7/63; H02P7/74
Foreign References:
| JPH0880089A | 1996-03-22 | |||
| JPH11301842A | 1999-11-02 |
Attorney, Agent or Firm:
Onda, Hironori (Ohmiya-cho 2-chome Gifu-shi, Gifu, JP)
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