US RE49,955 E1
Wireless power transmitting apparatus and method thereof
Su Ho Bae, Seoul (KR)
Assigned to LG INNOTEK CO., LTD., Seoul (KR)
Filed by LG INNOTEK CO., LTD., Seoul (KR)
Filed on Feb. 18, 2022, as Appl. No. 17/675,619.
Application 17/675,619 is a continuation of application No. 16/510,270, filed on Jul. 12, 2019, granted, now RE49017.
Application 14/980,904 is a continuation of application No. 13/826,526, filed on Mar. 14, 2013, granted, now 9,225,391, issued on Dec. 29, 2015.
Application 16/510,270 is a reissue of application No. 14/980,904, filed on Dec. 28, 2015, granted, now 9,711,974, issued on Jul. 18, 2017.
Application 17/675,619 is a reissue of application No. 14/980,904, filed on Dec. 28, 2015, granted, now 9,711,974, issued on Jul. 18, 2017.
Claims priority of application No. 10-2012-0027977 (KR), filed on Mar. 19, 2012; and application No. 10-2012-0146956 (KR), filed on Dec. 14, 2012.
This patent is subject to a terminal disclaimer.
Int. Cl. H02J 5/00 (2016.01); H02J 7/02 (2016.01); H02J 50/10 (2016.01); H02J 50/12 (2016.01); H02J 50/80 (2016.01); H04B 5/79 (2024.01)
CPC H02J 50/80 (2016.02) [H02J 50/10 (2016.02); H02J 50/12 (2016.02); H04B 5/79 (2024.01)] 20 Claims
OG exemplary drawing
 
[ 10. A method of controlling a wireless power transmitter, the method comprising:
providing a DC power to an AC power generator;
generating, via the AC power generator, an AC power signal having a predetermined frequency to transmit wireless power;
transmitting state information of the wireless power transmitter using the predetermined frequency, the state information of the wireless power transmitter including a maximum power of the wireless power transmitter to be supplied from the wireless power transmitter and an available power of the wireless power transmitter;
detecting a variation of consumption of the wireless power;
in response to the variation being less than a reference value, transmitting, by the AC power generator, the wireless power to have a first waveform; and
in response to the variation being equal to or greater than the reference value, transmitting, by the AC power generator, the wireless power to have a second waveform different from the first waveform,
wherein the generating the AC power comprises:
converting, via a DC-DC converter included in the AC power generator, a first DC power into a second DC power determined based on a control signal; and
converting, via a DC-AC converter included in the AC power generator, the second DC power into the wireless power, and
wherein the detecting the variation of the consumption of the wireless power comprises detecting the variation based on a level of an output current of the DC-DC converter and based on an adjustment of a switch and a resistor included in a wireless power receiver consuming the transmitted wireless power. ]