Power feeding device and wireless power feeding system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 26, 2019
Grant Date -
Mar 29, 2018
app pub date -
Nov 29, 2017
filing date -
Jan 20, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A resonant power feeding system that can provide high power transmission efficiency between a power feeding device and a power reception device without dynamically controlling the oscillation frequency in accordance with the distance between the power feeding device and the power reception device. High power transmission efficiency between the power feeding device and the power reception device is obtained by addition of a structure for adjusting the matching condition to both the power reception device and the power feeding device. Specifically, a transmission-reception circuit and a matching circuit are provided in both the power reception device and the power feeding device, and wireless signals for adjusting the matching circuit are transmitted and received through a resonant coil. Thus, the power feeding device can efficiently supply power to the power reception device without adjusting the oscillation frequency.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2017 Application Filing Year
- H02J Class
- 5376 Applications Filed
- 3962 Patents Issued To-Date
- 73.70 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- H02J Class
- 0 % this patent is cited more than
- 6 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | May 26, 2027 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | May 26, 2031 |
