Ultrasonic wireless power transmitter and receiver apparatuses, and method for wireless charging thereof
First Claim
1. An ultrasonic wireless power transmission apparatus, comprising:
- an ultrasound generating unit configured to generate an ultrasonic signal for transmitting electric power;
a signal processing unit configured to modulate the ultrasonic signal;
a power amplifying unit configured to amplify the modulated ultrasonic signal to a predetermined magnitude;
an ultrasonic transmitter/receiver unit configured to send the power-amplified ultrasonic signal to an ultrasonic wireless power receiver apparatus or receive the power-amplified ultrasonic signal from the ultrasonic wireless power transmitter apparatus; and
a control unit configured to calculate a charging time using power amount data received from the ultrasonic wireless power receiver apparatus and calculate a natural frequency using a distance to the ultrasonic wireless power receiver apparatus and a size of a radiation plate of the ultrasonic transmitter/receiver unit.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed are ultrasonic wireless power transmitter and receiver apparatuses, and a method for wireless charging thereof. A method for wireless charging according to the present disclosure includes: transmitting, by an ultrasonic wireless power transmitter apparatus, an wakeup signal to an ultrasonic wireless power receiver apparatus; calculating, by the ultrasonic wireless power transmitter apparatus, a charging time according to a charging status information received from the ultrasonic wireless power receiver apparatus; generating, by the ultrasonic wireless power transmitter apparatus, an ultrasonic signal, amplifying the generated ultrasonic signal to predetermined voltage and thereafter; charging, by the ultrasonic wireless power transmitter apparatus, the ultrasonic wireless power receiver apparatus for the calculated time and thereafter; and determining, by the ultrasonic wireless power transmitter apparatus, whether secondary charging is to be performed according to a charged status information received from the ultrasonic wireless power receiver apparatus.
12 Citations
14 Claims
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1. An ultrasonic wireless power transmission apparatus, comprising:
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an ultrasound generating unit configured to generate an ultrasonic signal for transmitting electric power; a signal processing unit configured to modulate the ultrasonic signal; a power amplifying unit configured to amplify the modulated ultrasonic signal to a predetermined magnitude; an ultrasonic transmitter/receiver unit configured to send the power-amplified ultrasonic signal to an ultrasonic wireless power receiver apparatus or receive the power-amplified ultrasonic signal from the ultrasonic wireless power transmitter apparatus; and a control unit configured to calculate a charging time using power amount data received from the ultrasonic wireless power receiver apparatus and calculate a natural frequency using a distance to the ultrasonic wireless power receiver apparatus and a size of a radiation plate of the ultrasonic transmitter/receiver unit. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An ultrasonic wireless power receiver apparatus, comprising:
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an ultrasonic transmitter/receiver unit configured to receive an ultrasonic signal for transmitting power from an ultrasonic wireless power transmitter apparatus or transmit an ultrasonic signal for transmitting data to the ultrasonic wireless power transmitter apparatus; a power managing unit configured to store power generated using the ultrasonic signal for transmitting power in a power storing unit and measure a power amount stored in the power storing unit; and a control unit configured to; control power amount data received from the power managing unit to be transmitted to the ultrasonic wireless power transmitter apparatus, when a wakeup signal is received from the ultrasonic wireless power transmitter apparatus, actuate the ultrasonic wireless power receiver apparatus and transmit, to the ultrasonic wireless power transmitter apparatus by using the ultrasonic wireless power receiver apparatus, charging mode and charging state data, and when a charging completion signal is received from the ultrasonic wireless power transmitter apparatus, transmit, to the ultrasonic wireless power transmitter apparatus by using the ultrasonic wireless power receiver apparatus, charged amount data. - View Dependent Claims (8)
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9. A method for wireless charging using ultrasound in an ultrasonic wireless power transmitter apparatus, comprising:
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transmitting, by an ultrasonic wireless power transmitter apparatus, an wakeup signal to an ultrasonic wireless power receiver apparatus; calculating, by the ultrasonic wireless power transmitter apparatus, a charging time according to a charging status information received from the ultrasonic wireless power receiver apparatus, and transmitting a charging start signal to the ultrasonic wireless power receiver apparatus; generating, by the ultrasonic wireless power transmitter apparatus, an ultrasonic signal, amplifying the generated ultrasonic signal to predetermined voltage and thereafter, sending the ultrasound with the amplified voltage to the ultrasonic wireless power receiver apparatus when receiving a notification of completion of charging preparation from the ultrasonic wireless power receiver apparatus; charging, by the ultrasonic wireless power transmitter apparatus, the ultrasonic wireless power receiver apparatus for the calculated charging time and thereafter, notifying the ultrasonic wireless power receiver apparatus that primary charging is completed; receiving, by the ultrasonic wireless power transmitter apparatus, charged status information generated in response to the notification that primary charging is complete, and determining, by the ultrasonic wireless power transmitter apparatus, whether secondary charging is to be performed according to the charged status information received from the ultrasonic wireless power receiver apparatus. - View Dependent Claims (10)
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11. A method for wireless charging using ultrasound in an ultrasonic wireless power transmitter apparatus, comprising:
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transmitting, by an ultrasonic wireless power transmitter apparatus, an wakeup signal to an ultrasonic wireless power receiver apparatus; transmitting, by the ultrasonic wireless power transmitter apparatus, a charging start signal to the ultrasonic wireless power receiver apparatus when receiving a notification of completion of wakeup and a charged status information from the ultrasonic wireless power receiver apparatus; emitting, by the ultrasonic wireless power transmitter apparatus, ultrasound in a predetermined range when receiving a notification of completion of receiving ready from the ultrasonic wireless power receiver apparatus; receiving, by the ultrasonic wireless power transmitter apparatus, a notification of a frequency to generate the highest voltage from the ultrasonic wireless power receiver apparatus; transmitting, by the ultrasonic wireless power transmitter apparatus, ultrasound with the notified frequency while changing the position of an ultrasonic element within the range of a predetermined distance (D0±
D1) and direction (±
θ
, ±
α
);receiving, by the ultrasonic wireless power transmitter apparatus from the ultrasonic wireless power receiver apparatus, an optimal transmitter distance and direction and an estimated charging time; and transmitting, by the ultrasonic wireless power transmitter apparatus, the ultrasound having the notified frequency and charging the ultrasonic wireless power receiver apparatus for the estimated charging time after setting the position of the ultrasonic element to the optimal transmitter distance and direction. - View Dependent Claims (12, 13, 14)
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Specification