Title:
POWER FEED SYSTEM, POWER TRANSMISSION CIRCUIT, AND POWER-RECEIVING CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2017/150712
Kind Code:
A1
Abstract:
A wireless power feed system 1 is provided with a power-receiving circuit 6 and a power transmission circuit 3. The power transmission circuit 3 has a power transmission resonance circuit 38 that includes an inductor of self inductance L1 and a capacitor of capacity C1. The power-receiving circuit 6 has a power-receiving resonance circuit 61 that includes an inductor of self inductance L2 and a capacitor of capacity C2. By being driven at a drive frequency ω, the power transmission resonance circuit 38 transmits power from the power transmission circuit 3 to the power-receiving circuit 6. The absolute value of the reactance X1 of the power transmission resonance circuit 38 determined by L1, C1, and ω is set so as to be greater than a first threshold value Th1 (Th1 ≥ 0), and the reactance X2 of the power-receiving resonance circuit 61 determined by L2, C2, and ω is set so as to be 0.
Inventors:
MIYAZAKI TOSHINORI (JP)
Application Number:
PCT/JP2017/008503
Publication Date:
September 08, 2017
Filing Date:
March 03, 2017
Export Citation:
Assignee:
YAMAHA MOTOR CO LTD (JP)
International Classes:
H02J50/12; H02J7/00
Foreign References:
| JP4644827B2 | 2011-03-09 | |||
| JP2000125487A | 2000-04-28 | |||
| JP2012034487A | 2012-02-16 |
Other References:
See also references of EP 3413435A4
Attorney, Agent or Firm:
SAKANE, Tsuyoshi et al. (JP)
Download PDF:
Previous Patent: POWER SUPPLY SYSTEM, POWER TRANSMISSION CIRCUIT AND POWER RECEIVING CIRCUIT
Next Patent: VEHICLE
Next Patent: VEHICLE