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Wireless power device and circuit

A technology of wireless power supply and voltage regulation circuit, applied in circuit devices, electrical components, electromagnetic wave systems, etc., can solve problems such as inconvenient connection of wires

Inactive Publication Date: 2008-06-11
BEIJING CEC HUADA ELECTRONIC DESIGN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some specific applications, wire connections may be inconvenient

Method used

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  • Wireless power device and circuit
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  • Wireless power device and circuit

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Embodiment Construction

[0017] The specific embodiment of the present invention is described as follows:

[0018] 1. Invented wireless power supply device (such as figure 1 ) can be realized with discrete components, the wireless power supply circuit 7 (such as figure 2 ) can also be realized with an integrated circuit;

[0019] 2. The two parts that make up the wireless power supply device (such as figure 1 ), that is, the radio frequency signal source 2 and the energy receiving and processing circuit 3 are an inseparable whole when working, but can be produced, produced or sold separately;

[0020] 3. RF signal source 2 (such as figure 1 ) frequency is generally low frequency or high frequency, and the product must meet the local radio frequency control requirements, such as 125 ~ 135KHz, 13.56MHz, 27MHz, etc.;

[0021] 4. The power of the wireless power supply device 1 depends on the strength of the electromagnetic field. For low-frequency or high-frequency signals, it usually depends on the ...

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PUM

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Abstract

The invention provides a wireless power supply device and a circuit thereof. The working principle of the wireless power supply device is to obtain energy through electromagnetic induction in the electromagnetic field, and obtain dc power supply by processing energy; the wireless power supply device consists of two parts, a radio frequency source and an energy receiving and processing circuit; energy transmission is accomplished through electromagnetic coupling between the two parts; therefore, no conducting wire is needed, and the invention is beneficial to special application with inconvenience in connection through conducting wires. The invention provides circuit realization of the proposed wireless power supply device.

Description

technical field [0001] The present invention is a wireless power supply device, and a circuit implementation is given. Background technique [0002] All electronic components need power when they work, and most of them need DC power when they work. In practical applications, the power supply required for the operation of electronic components is connected by wires to achieve energy transmission. In some specific applications, wire connections may be inconvenient. [0003] The working principle of the wireless power supply device is that the antenna coil emits an electromagnetic field through the radio frequency signal source and the resonant circuit. The antenna of the receiving device in the electromagnetic field senses energy and is processed by the resonant circuit and then input to the rectifier bridge circuit. After rectification and filtering, A DC voltage can be obtained, but this voltage will vary with the strength of the electromagnetic field, so voltage stabiliza...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J17/00H02J50/20
Inventor 周建锁
Owner BEIJING CEC HUADA ELECTRONIC DESIGN CO LTD