Wireless power transmitting apparatus and method thereof
First Claim
1. A wireless power transmitting apparatus wirelessly transmitting power to a wireless power receiving apparatus, the wireless power transmitting apparatus comprising:
- a detector detecting a wireless power transmission state between the wireless power transmitting apparatus and the wireless power receiving apparatus;
a transmit power controller generating a control signal to control transmit power based on the detected wireless power transmission state;
an AC power generator generating an AC power using a first DC power, wherein the generated AC power is determined based on the control signal; and
a transmission coil unit transmitting the AC power to the wireless power receiving apparatus;
wherein the AC power generator comprises;
a DC-DC converter converting the first DC power into a second DC power, wherein the second DC power is determined based on the control signal; and
a DC-AC converter converting the second DC power into the AC power;
wherein the detector detects the wireless power transmission state based on a level of an output current of the DC-DC converter, andwherein the detector detects the wireless power transmission state based on a peak-to-peak level of the output current of the DC-DC converter.
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Abstract
Disclosed are a wireless power transmitting apparatus and a method thereof. The wireless power transmitting apparatus wirelessly transmits power to a wireless power receiving apparatus. The wireless power transmitting apparatus detects a wireless power transmission state between the wireless power transmitting apparatus and the wireless power receiving apparatus, and generates a control signal to control transmit power based on the detected wireless power transmission state. The wireless power transmitting apparatus generates the transmit power by using first DC power based on the control signal, and transmits the transmit power to a transmission resonance coil through a transmission induction coil unit based on an electromagnetic induction scheme.
22 Citations
9 Claims
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1. A wireless power transmitting apparatus wirelessly transmitting power to a wireless power receiving apparatus, the wireless power transmitting apparatus comprising:
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a detector detecting a wireless power transmission state between the wireless power transmitting apparatus and the wireless power receiving apparatus; a transmit power controller generating a control signal to control transmit power based on the detected wireless power transmission state; an AC power generator generating an AC power using a first DC power, wherein the generated AC power is determined based on the control signal; and a transmission coil unit transmitting the AC power to the wireless power receiving apparatus; wherein the AC power generator comprises; a DC-DC converter converting the first DC power into a second DC power, wherein the second DC power is determined based on the control signal; and a DC-AC converter converting the second DC power into the AC power; wherein the detector detects the wireless power transmission state based on a level of an output current of the DC-DC converter, and wherein the detector detects the wireless power transmission state based on a peak-to-peak level of the output current of the DC-DC converter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification