2FSK-based wireless energy and signal synchronous transmission system and method

A signal synchronization, 2FSK technology, applied in transmission systems, near-field transmission systems, electromagnetic wave systems, etc., can solve the problems that wireless energy transmission systems cannot obtain power output, affect energy transmission efficiency, and cost high, and achieve fast demodulation speed. , the demodulation method is simple and the cost is low

Active Publication Date: 2015-10-28
CHONGQING UNIV
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Problems solved by technology

[0003] In the process of wireless energy transmission, many application scenarios need to transmit data. The traditional way is to transmit data through a separate wireless communication module (such as Bluetooth), which is costly and complicated; there are also some technical solutions that are The energy signal is amplitude modulated according to

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  • 2FSK-based wireless energy and signal synchronous transmission system and method
  • 2FSK-based wireless energy and signal synchronous transmission system and method
  • 2FSK-based wireless energy and signal synchronous transmission system and method

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[0027] The specific embodiments and working principles of the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Such as figure 1 As shown, a wireless energy and signal synchronous transmission system based on 2FSK is composed of a primary side circuit and a secondary side circuit. The primary side circuit includes a power supply circuit, an inverter circuit, and an energy transmitting circuit. The secondary side circuit includes energy A receiving circuit, an energy conversion circuit and a load, the energy transmitting circuit and the energy receiving circuit are both dual resonance circuits, a 2FSK modulation circuit is also provided in the primary circuit, and a 2FSK modulation circuit is also provided in the secondary circuit 2FSK demodulation circuit, the output terminal of the 2FSK modulation circuit is connected to the drive control terminal of the inverter circuit, the 2FSK modulation circuit modulates the dig...

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Abstract

The invention discloses a 2FSK-based wireless energy and signal synchronous transmission system and method. The system is formed by a primary circuit and a secondary circuit. An energy emission circuit and an energy receiving circuit are both double resonance circuits. The primary circuit is provided with a 2FSK modulation circuit. The secondary circuit is provided with a 2FSK demodulation circuit. The 2FSK demodulation circuit includes two signal pickup loops. The two signal pickup loops are inductively coupled to the energy emission circuit. The resonant frequencies of the two signal pickup loops correspond to the two frequencies of high frequency inversion signals output by an inversion circuit respectively. Signals output from the two signal pickup loops demodulate digital signals emitted by the primary circuit through a voltage comparator. The substantial effects are that wireless energy transmission and information synchronous transmission are achieved, demodulated digital signals can be directly output without an MCU, the circuit structure is simpler, and the cost is lower.

Description

technical field [0001] The invention relates to the technical field of wireless energy signal transmission, in particular, a 2FSK-based wireless energy and signal synchronous transmission system and method. Background technique [0002] With the development and improvement of wireless energy transmission technology, wireless energy transmission technology has been widely used in industrial production, human implanted medical electronics, consumer electronics, electric vehicles, underwater detectors, smart ammunition and other fields; especially based on magnetic resonance The coupled wireless energy transmission technology has the most extensive application prospects, with long transmission distance, high efficiency, moderate power, multiple loads, and strong applicability in free locations. [0003] In the process of wireless energy transmission, many application scenarios need to transmit data. The traditional way is to transmit data through a separate wireless communicati...

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Application Information

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IPC IPC(8): H04L27/12H04L27/14H04B5/00H02J17/00
CPCH04B5/0075H04L27/12H04L27/14
Inventor 曾孝平陈毅熊东于安宁王茂
Owner CHONGQING UNIV
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