Title:
DRIVE DEVICE AND METHOD, AND WIRELESS POWER TRANSMISSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/189998
Kind Code:
A1
Abstract:
[Problem] To reduce a leakage magnetic field with a simple configuration
[Solution] The drive device according to the present embodiment drives first to fourth switching elements to generate AC power and drives N inverters (where, N is an integer of 2 or more) for outputting the AC power to the respective corresponding power transmitting coil units. The drive device is equipped with a switching signal generator that drives said first switching element and said second switching element in a complementary fashion, drives said third switching element and said fourth switching element in a complementary fashion, generates switching signals for driving said first to fourth switching elements of each inverter so that the phase difference between the output currents of M-th inverter and (M-1)-th inverter (where, M is an integer of 2 to N, inclusive) becomes 360 × L/N degrees (where, L is an integer of greater than or equal to 1 and less than N) or approaches this value, and supplies said switching signals to said first to fourth switching elements of each inverter.
Inventors:
ISHIHARA HIROAKI (JP)
Application Number:
PCT/JP2014/065785
Publication Date:
December 17, 2015
Filing Date:
June 13, 2014
Export Citation:
Assignee:
TOSHIBA KK (JP)
International Classes:
H02M7/48; H02J17/00; H02M7/493
Domestic Patent References:
| WO2012046453A1 | 2012-04-12 |
Foreign References:
| JP2012175806A | 2012-09-10 | |||
| JP2010022076A | 2010-01-28 | |||
| JP2013219962A | 2013-10-24 | |||
| JP2005229783A | 2005-08-25 |
Attorney, Agent or Firm:
KATSUNUMA Hirohito et al. (JP)
Katsunuma Hirohito (JP)
Katsunuma Hirohito (JP)
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