Wireless power transmitter
DCFirst Claim
Patent Images
1. A wireless power transmitter comprising:
- a Printed Circuit Board (PCB);
a first transmission coil attached to a first surface of the PCB;
a second transmission coil and a third transmission coil, each attached to a second surface of the PCB opposite to the first surface, both of the second and third transmission coils overlapping with the first transmission coil; and
a control circuit board for controlling wireless power transfer through the first to third transmission coils,wherein the second transmission coil is spaced apart from the third transmission coil by a middle area without overlapping with the third transmission coil,wherein the first transmission coil overlaps with the middle area and portions of the second and third transmission coils, andwherein the control circuit board is configured to;
individually select an aligned coil among the first, second and third transmission coils for transmitting wireless power, andcontrol the aligned coil to transmit the wireless power without transmitting the wireless power via two unselected coils among the first, second and third transmission coils.
3 Assignments
Litigations
2 Petitions
Accused Products
Abstract
Embodiments provide a wireless power transfer technology, and more particularly, provide a wireless power transmitter, which may improve wireless power transfer efficiency, thereby achieving increased performance. The wireless power transmitter includes a Printed Circuit Board (PCB), a first transmission coil attached to a first surface of the PCB, a second transmission coil and a third transmission coil, each attached to a second surface of the PCB so as to overlap the first transmission coil, and a control circuit board for controlling wireless power transfer through the first to third transmission coils.
3 Citations
19 Claims
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1. A wireless power transmitter comprising:
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a Printed Circuit Board (PCB); a first transmission coil attached to a first surface of the PCB; a second transmission coil and a third transmission coil, each attached to a second surface of the PCB opposite to the first surface, both of the second and third transmission coils overlapping with the first transmission coil; and a control circuit board for controlling wireless power transfer through the first to third transmission coils, wherein the second transmission coil is spaced apart from the third transmission coil by a middle area without overlapping with the third transmission coil, wherein the first transmission coil overlaps with the middle area and portions of the second and third transmission coils, and wherein the control circuit board is configured to; individually select an aligned coil among the first, second and third transmission coils for transmitting wireless power, and control the aligned coil to transmit the wireless power without transmitting the wireless power via two unselected coils among the first, second and third transmission coils. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A wireless power transmitter comprising:
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a first layer including a first transmission coil; a second layer including a second transmission coil and a third transmission coil; a Printed Circuit Board (PCB) having a first surface and a second surface attached to the first layer and the second layer, respectively; a control circuit board for controlling wireless power transfer through the first, second and third transmission coils; and a connector inserted into the PCB, the connector electrically connecting the first, second and third transmission coils to the control circuit board, wherein the connector is located closer to the first transmission coil than the second and third transmission coils. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A wireless power transmitter comprising:
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a Printed Circuit Board (PCB); a first transmission coil disposed on a first surface of the PCB; a second transmission coil and a third transmission coil, each disposed on a second surface of the PCB opposite to the first surface, both of the second and third transmission coils overlapping with the first transmission coil; and a control circuit board for controlling wireless power transfer through the first to third transmission coils, wherein the control circuit board is configured to; individually select a best aligned coil among the first, second and third transmission coils for transmitting wireless power, and control the best aligned coil to transmit the wireless power without transmitting the wireless power via two unselected coils among the first, second and third transmission coils. - View Dependent Claims (19)
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Specification