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A radio frequency energy acquisition circuit system

A technology for obtaining circuit and radio frequency energy, which is applied in the direction of control/regulation system, electrical components, and adjustment of electrical variables, etc., can solve the problem that the voltage doubler rectifier cannot achieve the boost effect, etc., so as to prolong the service life, improve the conversion efficiency, reduce the The effect of small device size

Active Publication Date: 2017-03-08
XIDIAN UNIV
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Problems solved by technology

figure 1 The middle one is a two-stage voltage doubler rectifier, which can theoretically realize a four-fold boost rectification. However, since the MOS tube itself has a certain threshold conduction voltage Vth, the diode connection also has a certain forward conduction voltage drop Vth, making the voltage doubler The rectifier can not achieve the ideal boost effect

Method used

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  • A radio frequency energy acquisition circuit system
  • A radio frequency energy acquisition circuit system
  • A radio frequency energy acquisition circuit system

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Embodiment Construction

[0045] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0046] The present invention aims at the problem of insufficient battery life of the power supply of the system that is difficult to disassemble after installation in the prior art, and provides a radio frequency energy acquisition circuit system, which acquires radio frequency energy in the environment and converts it into a constant voltage that can be used by equipment , instead of the battery part of the device, which reduces the size of the device and prolongs the service life of the device; and adds a voltage detection module to realize the intermittent operation of the circuit and improve the conversion efficiency of the power supply.

[0047] Such as figure 2 As shown, the embodiment of the present invention provides a radio frequency energy acq...

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Abstract

The invention provides a radio frequency energy acquisition circuit system comprising a rectification circuit which is used for converting a radio frequency signal into a DC signal; and a voltage-boosting circuit which is connected with the rectification circuit and used for performing voltage boosting on the DC signal and outputting a voltage value. Radio frequency energy in the environment is acquired and converted into constant voltage capable of being used by equipment so that a battery part in the equipment is substituted, equipment volume is reduced and the service life of the equipment is prolonged. Besides, a voltage detection module is additionally arranged so that a characteristic of intermittent operation among circuits is realized and power conversion efficiency is enhanced.

Description

technical field [0001] The invention relates to the field of energy harvesting circuit systems, in particular to a radio frequency energy harvesting circuit system. Background technique [0002] Today, light weight, small size miniaturized systems such as passive radio frequency identification tags (RFID), wireless distributed sensor networks, and wearable / implanted body area networks (BANs) have been used in industrial supply chain management, environmental monitoring and medical / health support services. However, for the development of these size-constrained systems, the development of sustainable and high-efficiency power supplies has become a major challenge. The traditional solution is to utilize on-board batteries, but this not only increases the volume of the device, but also increases the production cost. , Moreover, if the size of the battery is reduced, it will inevitably mean that the working time of the device will be shortened. For example, a 1cm3 lithium prima...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M7/217H02M3/155
CPCH02M3/07
Inventor 刘帘曦马宁沐俊超朱樟明杨银堂
Owner XIDIAN UNIV
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