Title:
CIRCUIT FOR PARALLEL DRIVING SYNCHRONIZED MOTORS
Document Type and Number:
WIPO Patent Application WO/2005/006536
Kind Code:
A1
Abstract:
A circuit for parallel driving synchronized motors, wherein an activating/driving circuit is efficiently utilized and wherein a plurality of synchronized motors can be parallel driven in synchronism regardless of differences in number of polarities and in outputs. A driving circuit control part (12) connects an AC power supply (2) with an activating/driving circuit (1) to individually activate and drive synchronized motors (M1) and (M2). When the number of revolutions of a rotor reaches the vicinity of a synchronism revolution number for the power supply frequency, the driving circuit control part (12) causes driving switches (SW1,SW2) to disconnect the AC power supply (2) from the activating/driving circuit (1), while connecting the AC power supply (2) with a synchronous operation circuit (9) to cause the synchronized motors (M1) and (M2) to get into synchronous operations, thereby parallel driving the synchronized motors (M1) and (M2) in synchronism.
Inventors:
KOMATSU FUMITO (JP)
Application Number:
PCT/JP2004/007956
Publication Date:
January 20, 2005
Filing Date:
June 08, 2004
Export Citation:
Assignee:
KOMATSU FUMITO (JP)
International Classes:
H02P5/74; (IPC1-7): H02P7/74
Foreign References:
| JP2000228898A | 2000-08-15 | |||
| JP2000083390A | 2000-03-21 | |||
| JP2001258224A | 2001-09-21 |
Attorney, Agent or Firm:
Watanuki, Takao (12-9 Nakagosho 3-chom, Nagano-shi Nagano 35, JP)
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