IP Library › Granted Patent US 10,461,567
Granted Patent B2
US 10,461,567 · App. 15/987,296 · Granted Oct 29, 2019

Feed system, feed unit, and electronic unit

Inventor: Yoichi Uramoto (Kanagawa, JP)
Assignee: Sony Corporation
H02J7/025H02J5/005H02J7/0004H02J50/05H02J50/10H02J50/12H02J50/40H02J50/60H02J50/80H01M10/425H01M10/46H01M2010/4278H02J2007/0001
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 10,461,567
App. No.
15/987,296
Granted
Oct 29, 2019
Kind
B2
Abstract

A feed system has a first electronic unit, a second electronic unit, and a feed unit. The first electronic unit and the feed unit are separated. The feed unit transmits power to a power reception section of the second electronic unit based upon result information of a first authentication between the first electronic unit and the second electronic unit. The feed unit performs a second authentication on the second electronic unit in conjunction with power transmission.

Claims (28)

1. A power transmitter, comprising:

a power transmitting unit configured to detect a power receiving unit to be charged before the power transmitting unit performs pre-charging of the power receiving unit and to receive a charging request from the power receiving unit after the power transmitting unit performs the pre-charging of the power receiving unit,

wherein the power transmitting unit is configured to transmit power to the power receiving unit during main charging based upon result information of a first authentication between the power transmitting unit and the power receiving unit.

2. The power transmitter according to claim 1 , wherein power transmission circuitry in the power transmitting unit includes a power transmission coil and a power transmission capacitor element.

3. The power transmitter according to claim 2 , wherein the power transmission capacitor element is a variable capacitor.

4. The power transmitter according to claim 2 , wherein the power transmission circuitry is electrically connected to a power transmitting control section.

5. The power transmitter according to claim 4 , wherein the power transmitting control section and the power transmission circuitry are electrically connected to an AC power source.

6. The power transmitter according to claim 4 , wherein the power transmitting control section is electrically connected to a detection section.

7. A power receiver, comprising:

a power receiving unit configured to:

receive power from a power transmitting unit during pre-charging,

send a charging request to the power transmitting unit before performing a first authentication between the power transmitting unit and the power receiving unit, and

receive power from the power transmitting unit during main charging after performing the first authentication between the power transmitting unit and the power receiving unit.

8. The power receiver according to claim 7 , wherein power receiving circuitry in the power receiving unit includes a power receiving coil and a power receiving capacitor element.

9. The power receiver according to claim 8 , wherein the power receiving circuitry is electrically connected to a power receiving control section.

10. The power receiver according to claim 9 , wherein a charging section and the power receiving circuitry are electrically connected to the power receiving control section.

11. A power transmitting system, comprising:

a power transmitting unit configured to detect a power receiving unit to be charged before the power transmitting unit performs pre-charging of the power receiving unit; and

a power receiving unit configured to send a charging request to the power transmitting unit and receive power from the power transmitting unit during main charging after the power receiving unit performs a first authentication between the power transmitting unit and the power receiving unit.

12. The power transmitting system according to claim 11 , wherein power transmission circuitry in the power transmitting unit includes a power transmission coil and a power transmission capacitor element.

13. The power transmitting system according to claim 12 , wherein the power transmission capacitor element is a variable capacitor.

14. The power transmitting system according to claim 12 , wherein the power transmission circuitry is electrically connected to a power transmitting control section.

15. The power transmitting system according to claim 14 , wherein the power transmitting control section and the power transmission circuitry are electrically connected to an AC power source.

16. The power transmitting system according to claim 14 , wherein the power transmitting control section is electrically connected to a detection section.

17. The power transmitting system according to claim 11 , wherein power receiving circuitry in the power receiving unit includes a power receiving coil and a power receiving capacitor element.

18. The power transmitting system according to claim 17 , wherein the power receiving circuitry is electrically connected to a power receiving control section.

19. The power transmitting system according to claim 18 , wherein a charging section and the power receiving circuitry are electrically connected to the power receiving control section.

20. The power transmitting system according to claim 18 , wherein a battery is electrically connected to the charging section.

Priority Claims (2)
JP 2011-175052 · Aug 10, 2011 · national
JP 2012-035835 · Feb 22, 2012 · national
Continuity (3)
Continuation 15381792 · Dec 16, 2016
Continuation 14130423
Related Publication 20180269711A1 · Sep 20, 2018