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Wireless Power Transmitter with Multiple Magnetic Oscillators

A technology of power transmitters and oscillators, applied in power oscillators, circuits, inductors, etc., can solve problems such as cumbersome and inconvenient connectors

Active Publication Date: 2019-04-05
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cables and similar connectors can sometimes be inconvenient or cumbersome and have other disadvantages

Method used

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  • Wireless Power Transmitter with Multiple Magnetic Oscillators
  • Wireless Power Transmitter with Multiple Magnetic Oscillators
  • Wireless Power Transmitter with Multiple Magnetic Oscillators

Examples

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Embodiment Construction

[0033] The detailed description set forth below in connection with the accompanying drawings is intended as a description of exemplary embodiments of the invention and is not intended to represent the only embodiments in which the invention may be practiced. The term "exemplary" is used throughout this description to mean "serving as an example, instance, or illustration" and should not necessarily be construed as preferred or advantageous over other exemplary embodiments. The detailed description contains specific details for the purpose of providing a thorough understanding of the exemplary embodiments of the invention. In some instances, some devices are shown in block diagram form.

[0034] Wirelessly transferring power may refer to transferring any form of energy associated with an electric, magnetic, electromagnetic field, or otherwise, from a transmitter to a receiver without the use of physical electrical conductors (eg, power may be transferred through free space). P...

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PUM

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Abstract

A power transmitter is configured to wirelessly transmit power to at least one power receiver. The power transmitter includes at least one excitation circuit configured to generate a time-varying first magnetic field in response to a time-varying current flowing through the at least one excitation circuit. The time-varying first magnetic field has an excitation frequency. The power transmitter further includes a plurality of magnetic oscillators. Each magnetic oscillator of the plurality of magnetic oscillators has a mechanical resonant frequency substantially equal to the excitation frequency. The plurality of magnetic oscillators are configured to generate a time-varying second magnetic field in response to the first magnetic field.

Description

technical field [0001] The present invention generally relates to wireless power. More specifically, the present invention is directed to a wireless power transmitter using multiple magnetic oscillators as a magneto-mechanical system. Background technique [0002] An increasing number and variety of electronic devices are powered via rechargeable batteries. Such devices include mobile phones, portable music players, laptop computers, tablet computers, computer peripherals, communication devices (eg, Bluetooth devices), digital cameras, hearing aids, and the like. While battery pack technology has improved, battery-powered electronic devices increasingly require and consume greater amounts of power, thus often requiring recharging. Rechargeable devices are often charged via a wired connection through a cable or other similar connector that is physically connected to a power supply. Cables and similar connectors can sometimes be inconvenient or cumbersome, among other disad...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J5/00H02J7/02H04B5/00H02J50/12
CPCH02J50/10H02J50/12H02J7/32H02J50/50H02J50/70H04B5/79H01F38/14H03B15/006
Inventor 汉斯彼得·威德默奈杰尔·P·库克马库斯·比特纳
Owner QUALCOMM INC