Illumination system comprising an array of LEDs
First Claim
1. A capacitive driving system, comprising:
- a supply device having a top surface, the supply device comprising at least one set of transmission electrodes located at said top surface, and a power generator having two output terminals coupled to respective ones of the transmission electrodes, wherein the power generator is adapted to generate electrical power having at said output terminals alternating voltage at a certain power frequency;
at least one load device having a lower surface, the load device comprising two receiver electrodes at said lower surface and at least one load member coupled to said receiver electrodes;
wherein the supply device and the load device have an energy transfer position in which the lower surface of the load device is directed to the top surface of the supply device and in which at least one of said transmission electrodes together with a corresponding one of said receiver electrodes defines a first transfer capacitor;
wherein, in the energy transfer position, resonant energy transfer takes place from the supply device to the load member;
and wherein, in the energy transfer position, at least said corresponding one receiver electrode has a displacement freedom with respect to the corresponding transmission electrode for enabling amendment of the capacitance value of said first transfer capacitor.
1 Assignment
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Accused Products
Abstract
A capacitive driving system (100) comprises:—a supply device (110) having a set of transmission electrodes (111, 112) located at a top surface (117), and a power generator (13) adapted to generate alternating electrical power;—load devices (200) each having two receiver electrodes (221, 222) at a lower surface (227) and at least one load member (223) coupled to said receiver electrodes. In an energy transfer position, the lower surface of the load device is directed to the top surface of the supply device and at least one of said transmission electrodes together with a corresponding one of said receiver electrodes defines a first transfer capacitor (31). Resonant energy transfer takes place from the supply device to the load member. The load device can be rotated for enabling amendment of the capacitance value of said first transfer capacitor.
9 Citations
15 Claims
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1. A capacitive driving system, comprising:
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a supply device having a top surface, the supply device comprising at least one set of transmission electrodes located at said top surface, and a power generator having two output terminals coupled to respective ones of the transmission electrodes, wherein the power generator is adapted to generate electrical power having at said output terminals alternating voltage at a certain power frequency; at least one load device having a lower surface, the load device comprising two receiver electrodes at said lower surface and at least one load member coupled to said receiver electrodes; wherein the supply device and the load device have an energy transfer position in which the lower surface of the load device is directed to the top surface of the supply device and in which at least one of said transmission electrodes together with a corresponding one of said receiver electrodes defines a first transfer capacitor; wherein, in the energy transfer position, resonant energy transfer takes place from the supply device to the load member; and wherein, in the energy transfer position, at least said corresponding one receiver electrode has a displacement freedom with respect to the corresponding transmission electrode for enabling amendment of the capacitance value of said first transfer capacitor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for adapting the light output of an illumination load device in a capacitive driving system, the capactive driving system comprising a supply device having a top surface, the supply device comprising at least one set of transmission electrodes located at said top surface, and a power generator having two output terminals coupled to respective ones of the transmission electrodes, wherein the power generator is adapted to generate electrical power having at said output terminals alternating voltage at a certain power frequency,
the method comprising the step of displacing, with respect to the supply device, the illumination load device, the illumination load device having a lower surface comprising two receiver electrodes and further comprising at least one load member, coupled to said receiver electrodes, the at least one load member comprising an array of LEDs arranged in parallel to each other and/or in series to each other and/or anti-parallel to each other, wherein the illumination load device is displaced with respect to the supply device while in an energy transfer position in which the lower surface of the illumination load device is directed to the top surface of the supply device and in which at least one of said transmission electrodes together with a corresponding one of said receiver electrodes defines a first transfer capacitor, wherein, in the energy transfer position, resonant energy transfer takes place from the supply device to the load member; and wherein the displacement of at least said corresponding one receiver electrode with respect to the corresponding transmission electrode enables amendment of the capacitance value of said first transfer capacitor. - View Dependent Claims (13)
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14. A method for manufacturing a capacitive illumination system, the method comprising the steps of:
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providing a supply device having a top surface, the supply device comprising at least one set of transmission electrodes located at said top surface, and a power generator having two output terminals coupled to respective ones of the transmission electrodes, wherein the power generator is adapted to generate electrical power having at said output terminals alternating voltage at a certain power frequency; providing a plurality of illumination load devices each having a lower surface, each load device comprising two receiver electrodes at said lower surface and at least one illumination load member coupled to said receiver electrodes, wherein said load member comprises at least one LED; placing the load devices in energy transfer positions on the supply device, wherein the lower surface of each load device is directed to the top surface of the supply device and in which at least one of said transmission electrodes together with a corresponding one of said receiver electrodes defines a first transfer capacitor; effecting resonant energy transfer from the supply device to the load member; displacing at least one of the illumination load devices, in the energy transfer positions, with respect to the supply device for adapting the light output of the illumination load devices; and fixating the illumination load devices with respect to the supply device. - View Dependent Claims (15)
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Specification