Electromagnetic induction wireless information transmitting and receiving circuit

Abstract

The invention discloses an electromagnetic induction wireless information transmitting and receiving circuit. The circuit comprises a receiving coil L1, a matching capacitor C1, a power supply circuit, an information decoding circuit, a data feedback capacitor C2, a voltage stabilization filter capacitor C3, a switch K1, a diode D1 and a data processing unit. According to the electromagnetic induction wireless information transmitting and receiving circuit provided by the invention, no external power supply is needed during information transmission, a power supply function is realized through a magnetic induction signal, a common discrete device design is adopted instead of a special integrated circuit, and all hardware circuits are autonomously controllable by adopting domestic components; software adopts a self-defined data transmission protocol, the characteristics of high data transmission rate and long induction distance can be realized, and the requirements of circuits of some special products on no need of high-power energy transmission, no battery load and no energy output are greatly met.

Description

technical field [0001] The invention relates to the technical field of circuit control, in particular to an electromagnetic induction wireless information transmission and reception circuit. Background technique [0002] There are five mainstream wireless technologies or standards that the existing electromagnetic induction wireless information transmission and receiving circuits follow: QI standard, PMA standard, A4WP standard, iNPOFi technology, and Wi-Po technology. [0003] Qi standard: Qi is the first standardization organization in the world to promote wireless charging technology - the "wireless charging" standard launched by the Wireless Power Consortium (WPC), which has two characteristics of convenience and versatility: First, different brands As long as there is a Qi logo on any product, it can be charged with a Qi wireless charger; secondly, it overcomes the technical bottleneck of "universal" wireless charging. In the near future, mobile phones, cameras, compute...

AI Technical Summary

Problems solved by technology

[0008] For some special product circuits, which do not require high-power energy transmission, no battery load and energy output requirements, the above-mentioned existing electromagnetic induction wireless information transmission and receiving circuits cannot meet the charging requirements of these products with special power supply requirements.

Images