US 2014/0152247 A1 · BATTERY CHARGING METHOD AND SYSTEM USING WIRELESS POWER TRANSMISSION

Abstract

Provided is a battery charging method using wireless power transmission, the method including: receiving a first message associated with a battery charge start from a reception apparatus; discovering an optimal frequency band for a transmit power signal to be transmitted to the reception apparatus based on the first message; receiving, from the reception apparatus, a second message that includes an extra power value and a charge power value, and is associated with a charge state of the reception apparatus; and adaptively controlling transmit power so that the extra power value is maintained to be constant in proportion to a relationship between the charge power value and a first parameter, based on the second message.

Claims16

Dependent claims

A battery charging method using wireless power transmission, the method comprising:

receiving a first message associated with a battery charge start from a reception apparatus;
discovering an optimal frequency band for a transmit power signal to be transmitted to the reception apparatus based on the first message;
receiving, from the reception apparatus, a second message that comprises an extra power value and a charge power value, and is associated with a charge state of the reception apparatus;
and
adaptively controlling transmit power so that the extra power value is maintained to be constant in proportion to a relationship between the charge power value and a first parameter, based on the second message.

2 more elements

A battery charging system using wireless power transmission, the system comprising:

a transmission apparatus;
and
a reception apparatus,
wherein the transmission apparatus receives a first message associated with a battery charge start from a reception apparatus, discovers an optimal frequency band for a transmit power signal to be transmitted to the reception apparatus based on the first message, receives, from the reception apparatus, a second message that comprises an extra power value and a charge power value, and is associated with a charge state of the reception apparatus, and adaptively controls transmit power to so that the extra power value is maintained to be constant in proportion to a relationship between the charge power value and a first parameter, based on the second message.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

13/953,992Filed 30 Jul 2013

Priority

KR 10-2012-01389293 Dec 2012

Published

5 Jun 2014

Term ends

Not estimatedThe source records don’t support an estimate.

Classification6 codes

H02J 50/20
Circuit arrangements or systems for wireless supply or distribution of electric power: using microwaves or radio frequency waves
H02J 50/12
Using inductive coupling: of the resonant type
H02J 50/80
Circuit arrangements or systems for wireless supply or distribution of electric power: involving the exchange of data, concerning supply or…
H02J 7/00
Circuit arrangements for charging or discharging batteries or for supplying loads from

Battery charging method and system using wireless power transmission

Life of this patent

Battery charging method and system using wireless power transmission

Life of this patent

Abstract

Claims16