Non-contact type power supplying apparatus and non-contact type power supplying method
First Claim
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1. A non-contact type power supplying apparatus comprising:
- a first transmitting coil configured to output a detection signal through the first transmitting coil, wherein the detection signal is a plurality of discrete pulses;
a second output comprising a second transmitting coil and configured to output a wake-up signal through the second transmitting coil or transmit power through the second transmitting coil using a non-contact type method, wherein the wake-up signal is a plurality of discrete pulses; and
a controller configured to determine whether or not a first object has approached by using a variation of an impedance of the first transmitting coil, control the second output to output the wake-up signal, determining whether or not an approached first object is a first power receiving apparatus by using a first response signal outputted from the approached first object in response to the wake-up signal, control the second output to transmit power to the first power receiving apparatus when the approached first object is determined to be the first power receiving apparatus, determine whether or not a second object has approached by using a variation of the impedance of the first transmitting coil while the second output transmits the power to the first power receiving apparatus, and control the second output to stop the transmission of the power and output the wake-up signal when it is determined that the second object has approached,wherein the amplitude of either one or both of the detection signal pulses and the wake-up single pulses varies sequentially from a low level to a high level, andwherein the first output outputs the detection signal while the second output transmits the power to the first power receiving apparatus.
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Abstract
A non-contact type power supplying apparatus may be capable of detecting another power receiving apparatus even during the charging. The non-contact type power supplying apparatus may include: a first output unit outputting a detection signal detecting a power receiving apparatus; and a second output unit outputting a wake-up signal waking-up a communications circuit of the detected power receiving apparatus when the power receiving apparatus is detected, thereby making it possible to supply power to the detected power receiving apparatus using a non-contact type method.
17 Citations
11 Claims
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1. A non-contact type power supplying apparatus comprising:
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a first transmitting coil configured to output a detection signal through the first transmitting coil, wherein the detection signal is a plurality of discrete pulses; a second output comprising a second transmitting coil and configured to output a wake-up signal through the second transmitting coil or transmit power through the second transmitting coil using a non-contact type method, wherein the wake-up signal is a plurality of discrete pulses; and a controller configured to determine whether or not a first object has approached by using a variation of an impedance of the first transmitting coil, control the second output to output the wake-up signal, determining whether or not an approached first object is a first power receiving apparatus by using a first response signal outputted from the approached first object in response to the wake-up signal, control the second output to transmit power to the first power receiving apparatus when the approached first object is determined to be the first power receiving apparatus, determine whether or not a second object has approached by using a variation of the impedance of the first transmitting coil while the second output transmits the power to the first power receiving apparatus, and control the second output to stop the transmission of the power and output the wake-up signal when it is determined that the second object has approached, wherein the amplitude of either one or both of the detection signal pulses and the wake-up single pulses varies sequentially from a low level to a high level, and wherein the first output outputs the detection signal while the second output transmits the power to the first power receiving apparatus. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A non-contact type power supplying method comprising:
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outputting a detection signal through a first transmitting coil, wherein the detection signal is a plurality of discrete pulses; determining whether or not a first object has approached by using a variation of an impedance of the first transmitting coil; outputting a wake-up signal through a second transmitting coil, wherein the wake-up signal is plurality of discrete pulse; determining whether or not an approached first object is a first power receiving apparatus by using a first response signal outputted from the approached first object in response to the wake-up signal; when the approached first object is determined to be the first power receiving apparatus, supplying power to the first power receiving apparatus through the second transmitting coil in the non-contact manner and outputting the detection signal through the first transmitting coil; determining whether or not a second object has approached by using the variation of an impedance of the first transmitting coil; and stopping the transmission of the power to the first power receiving apparatus and outputting the wake-up signal through the second transmitting coil when it is determined that the second object has approached, wherein the amplitude of either one or both of the detection signal pulses and the wake-up signal pulses varies sequentially from a low level to a high level. - View Dependent Claims (9, 10, 11)
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Specification