A CAPACITIVE CONTACTLESS POWERING SYSTEM
First Claim
1. A capacitive powering system, comprising:
- a pair of receiver electrodes, having connected in series therebetween, a load with a first inductor, wherein the first inductor is configured with respect of the load to resonate the system;
a pair of transmitter electrodes connected to a driver; and
an insulating layer having a first side and a second side opposite each other, wherein the pair of transmitter electrodes is coupled to the first side of the insulating layer and the pair of receiver electrodes is decoupled from the second side of the insulating layer, such that a capacitive impedance is formed between the pair of transmitter electrodes and the pair of receiver electrodes, wherein a power signal generated by the driver is wirelessly transferred from the pair of transmitter electrodes to the pair of receiver electrodes to power the load when a frequency of the power signal matches a series-resonance frequency of the first inductor and the capacitive impedance.
5 Assignments
0 Petitions
Accused Products
Abstract
A capacitive contactless powering system (100) comprises a pair of receiver electrodes (141, 142) connected to a load (150) through a first inductor (160), wherein the first inductor is coupled to the load to resonate the system; a pair of transmitter electrodes (121, 122) connected to a driver (110); an insulating layer (130) having a first side and a second side opposite each other, wherein the pair of transmitter electrodes are coupled to the first side of the insulating layer and the pair of receiver electrodes are decoupled from the second side of the insulating layer, such that a capacitive impedance is formed between the pair of transmitter electrodes and the pair of receiver electrodes, wherein a power signal generated by the driver is wirelessly transferred from the pair of transmitter electrodes to the pair of receiver electrodes to power the load when a frequency of the power signal matches a series-resonance frequency of the first inductor and the capacitive impedance.
-
Citations
15 Claims
-
1. A capacitive powering system, comprising:
-
a pair of receiver electrodes, having connected in series therebetween, a load with a first inductor, wherein the first inductor is configured with respect of the load to resonate the system; a pair of transmitter electrodes connected to a driver; and an insulating layer having a first side and a second side opposite each other, wherein the pair of transmitter electrodes is coupled to the first side of the insulating layer and the pair of receiver electrodes is decoupled from the second side of the insulating layer, such that a capacitive impedance is formed between the pair of transmitter electrodes and the pair of receiver electrodes, wherein a power signal generated by the driver is wirelessly transferred from the pair of transmitter electrodes to the pair of receiver electrodes to power the load when a frequency of the power signal matches a series-resonance frequency of the first inductor and the capacitive impedance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A method of capacitive contactless power transfer, comprising:
-
connecting a pair of receiver electrodes to a load and a first inductor, the load and the first inductor connected in series; connecting a pair of transmitter electrodes to a driver; forming a capacitive impedance between the pair of transmitter electrodes and the pair of receiver electrodes by; coupling the pair of transmitter electrodes to a first side of an insulating layer; decoupling the pair of receiver electrodes from a second side of the insulating layer; and tuning a frequency of a power signal generated by the driver to match a series-resonance frequency of the first inductor and the capacitive impedance; and wirelessly transferring the power signal from the pair of transmitter electrodes to the pair of receiver electrodes to power the load when the frequency of the power signal matches a series-resonance frequency of the first inductor and the capacitive impedance. - View Dependent Claims (15)
-
Specification