Back to results
US 2017/0288458 A1Published application
Wireless power transmitter and method of controlling the same
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsTae Won LEE, Young Hyok JI, Seung Hee LEE
Life of this patent
Estimating the term…
Abstract
A wireless power transmitter includes a resonator configured to transmit a detection signal; a period detector configured to detect a period of oscillation of an oscillation signal caused by remnants of the detection signal; and a controller configured to determine whether an external charging object is approaching in response to a change in the period of the oscillation signal.
Claims19
A wireless power transmitter, comprising:
- a resonator configured to transmit a detection signal;
- a period detector configured to detect a period of oscillation of an oscillation signal caused by remnants of the detection signal;
- and
- a controller configured to determine whether an external charging object is approaching in response to a change in the period of the oscillation signal.
1 more element
A method of controlling a wireless power transmitter, the method comprising:
- generating a detection signal;
- detecting a period of oscillation of an oscillation signal caused by remnants of the detection signal;
- and
- determining whether an external charging object is approaching in response to a change in the period of the oscillation signal.
1 more element
A wireless power transmitter, comprising:
- a resonator configured to transmit a detection signal;
- and,
- a detector coupled to the resonator, the detector being configured to detect a change in an oscillation of the resonator after conclusion of provision of the detection signal to the resonator.
Dependencies are inferred from the claim text.