Power supply system, method and device based on radio frequency electromagnetic wave energy collection

Abstract

The invention relates to a power supply system, method and device based on radio frequency electromagnetic wave energy collection. The power supply system comprises a signal receiving module which isused for receiving a radio frequency electromagnetic wave signal in a free space; a filtering noise reduction module used for carrying out filtering noise reduction processing on the radio frequency electromagnetic wave signal to obtain a filtering signal; a voltage doubling rectifying module used for carrying out rectifying and voltage doubling processing on the filtering signal to obtain high-voltage direct current; a coupling voltage stabilization module used for carrying out coupling and voltage stabilization processing on the high-voltage direct current to obtain voltage-stabilized electric energy; a power amplification module used for carrying out power amplification on the voltage-stabilized electric energy to obtain electric energy after power amplification; and an electric energystorage module used for storing the amplified electric energy and supplying power to external equipment. Free space electromagnetic waves can be safely transmitted to external load equipment for charging without loss.

Description

technical field [0001] The invention relates to the field of power supply devices, in particular to a power supply system, method and device based on radio frequency electromagnetic wave energy collection. Background technique [0002] Existing RF energy harvesting systems are accomplished through signal collection, signal transmission, voltage doubling circuits and energy storage. This design can complete corresponding functions, and can realize energy utilization and save energy cost. In the whole design process, the modular design is very clear, the function and performance of the corresponding modules are independent, and the design can be carried out at the same time to reduce the development cycle. [0003] However, this design cannot reduce the noise of electromagnetic waves in the atmosphere, and will cause a large loss of energy, so the conversion efficiency is very low. Moreover, the electromagnetic interference between modules will cause certain damage to the eq...

AI Technical Summary

Problems solved by technology

[0003] However, this design cannot reduce the noise of electromagnetic waves in the atmosphere, and will cause a large loss of energy, so the conversion efficiency is very low

Moreover, the electromagnetic interference between modules will cause certain damage to the equipment and reduce the service life of the equipment

Existing technologies can only be designed for a specific device and cannot be widely used

The equipment is not integrated and should not be taken out for field work

[0004] To sum up, the existing power supply system based on radio frequency energy has too much noise in the received signal, which will reduce the energy transfer conversion; the electromagnetic interference between the modules is too large, and the energy will be dissipated as heat due to mutual inductance, eddy current, etc.; the design is aimed at specific The equipment has not been widely used by different equipment; the power conversion gain is fixed, not adjustable, and the flexibility is poor; it is not convenient to carry and other defects

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