Title:
POWER TRANSMISSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2013/129452
Kind Code:
A1
Abstract:
A power transmission system for transmitting electrical energy from a transmission antenna (140) to a reception antenna (210) via an electromagnetic field, the power transmission system comprising: an inverter (130) for converting DC voltage into AC voltage having a prescribed frequency and outputting the AC voltage; a transmission-side control unit (150) for performing a control for keeping the drive frequency of the inverter (130) at a prescribed frequency, controlling the voltage of the DC voltage inputted into the inverter (130), and controlling so as to keep the power value outputted from the inverter (130) constant; a transmission antenna (140) into which the inverter (130) inputs the AC voltage; a rectifier (220) for rectifying the output from the reception antenna (210) into DC voltage; a step-up/step-down unit (230) for stepping up or stepping down and then outputting the DC voltage outputted by the rectifier (220); a battery (240) charged by the output from the step-up/step-down unit (230); and a reception-side control unit (250) for controlling the step-up/step-down unit (230) and charging the battery (240) using maximum efficiency.
Inventors:
YAMAKAWA HIROYUKI (JP)
ITO YASUO (JP)
HAYASHI KOKI (JP)
ITO YASUO (JP)
HAYASHI KOKI (JP)
Application Number:
PCT/JP2013/055078
Publication Date:
September 06, 2013
Filing Date:
February 27, 2013
Export Citation:
Assignee:
EQUOS RES CO LTD (JP)
International Classes:
H02J7/00; B60L5/00; B60M7/00; H01M10/44; H01M10/46; B60L11/18
Foreign References:
| JP2013078171A | 2013-04-25 | |||
| JP2013017254A | 2013-01-24 | |||
| JP2010233364A | 2010-10-14 | |||
| JP2009501510A | 2009-01-15 | |||
| JP2010068657A | 2010-03-25 |
Other References:
TAKEHIRO IMURA; YOUICHI HORI: "Transmission technology with electromagnetic field resonant coupling", IEEJ JOURNAL, vol. 129, no. 7, 2009
TAKEHIRO IMURA; HIROYUKI OKABE; TOSHIYUKI UCHIDA; YOUICHI HORI: "Research on magnetic field coupling and electric field coupling of non-contact power transmission in terms of equivalent circuits", IEEJ TRANS.IA, vol. 130, no. 1, 2010
See also references of EP 2822147A4
TAKEHIRO IMURA; HIROYUKI OKABE; TOSHIYUKI UCHIDA; YOUICHI HORI: "Research on magnetic field coupling and electric field coupling of non-contact power transmission in terms of equivalent circuits", IEEJ TRANS.IA, vol. 130, no. 1, 2010
See also references of EP 2822147A4
Attorney, Agent or Firm:
TANAKA, Sadatsugu et al. (JP)
Sadatugu Tanaka (JP)
Sadatugu Tanaka (JP)
Download PDF:
Claims:
Previous Patent: POWER TRANSMISSION SYSTEM
Next Patent: FUEL CELL SYSTEM AND CONTROL METHOD FOR FUEL CELL SYSTEM
Next Patent: FUEL CELL SYSTEM AND CONTROL METHOD FOR FUEL CELL SYSTEM