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Capacitive non-contact power supply system

A power supply system, capacitive technology, applied in the direction of electrical components, circuit devices, etc., can solve the problems of capacitive power transmission circuit can not supply power, increase power loss, increase the number of connections, etc.

Active Publication Date: 2016-10-12
SIGNIFY HLDG BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, increasing the number of pixelated electrodes increases the number of connections to the electrodes, thereby increasing power consumption
Therefore, the capacitive power transfer circuit discussed in the related art cannot supply power over a large area such as a window, a wall, etc. when having only a single receiver and electrodes of limited size.

Method used

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  • Capacitive non-contact power supply system
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  • Capacitive non-contact power supply system

Examples

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Embodiment Construction

[0019] It is important to point out that the examples are only examples of the many advantageous uses of the innovative teachings herein. In general, statements made in the specification of the present application do not necessarily limit any of the various claimed inventions. Furthermore, some statements may apply to some inventive features but not to others. In general, unless otherwise indicated, singular elements may be plural and vice versa without loss of generality. In the drawings, like reference numerals are intended to refer to like parts throughout the several views.

[0020] figure 1 A schematic diagram of a capacitive powering system 100 constructed in accordance with an embodiment of the invention is shown. System 100 enables large area power transfer. The system 100 can be installed in places where open electrical contacts are not preferred or desired, such as bathrooms, retail stores where regular changes are required in order to illuminate products, furnit...

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PUM

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Abstract

A capacitive contactless power supply system (100) includes 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 a load to resonate the system; a pair of transmitter electrodes (121, 122) connected to a driver (110); an insulating layer (130) having first and second faces 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 one between a pair of receiver electrodes, wherein a power signal generated by the driver is wirelessly transmitted from the pair of transmitter electrodes to the pair of receiver electrodes so that when the frequency of the power signal and the first An inductor powers the load when matched to the series resonant frequency of the capacitive impedance.

Description

[0001] This application claims U.S. Provisional Applications 61 / 523,922 filed August 16, 2011, 61 / 523,932 filed August 16, 2011, 61 / 523,935 filed August 16, 2011, 61 / 523,941, benefit of 61 / 523,942 filed 16 August 2011. technical field [0002] The present invention relates generally to capacitive powering systems for wireless power transfer, and more particularly, to wireless power transfer over large areas. Background technique [0003] Wireless power transfer involves the supply of electric power without any wires or contacts, whereby power supply of electronic devices is performed through a wireless medium. One popular application for contactless power supply is for the charging of portable electronic devices (eg, mobile phones, laptop computers, etc.). [0004] One implementation for wireless power transfer is through inductive powering systems. In such systems, electromagnetic inductance between a source (transmitter) and a device (receiver) allows for contactless pow...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J50/12
CPCH02J50/05Y10T29/49117H02J50/12
Inventor A.塞姆佩E.瓦夫芬施米特D.W.范戈尔H.T.范德赞登
Owner SIGNIFY HLDG BV