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Micro-energy collection and maximum power output device and method for microwave energy transmission system

A technology of maximum power output and microwave energy transmission, applied in circuit devices, electrical components, etc., can solve problems such as weak energy, achieve the effects of weak high voltage resistance, improve efficiency, and reduce energy consumption of components

Active Publication Date: 2021-09-10
SHANGHAI INST OF SPACE POWER SOURCES
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the energy output by a single millimeter wave antenna is extremely weak, and the maximum power output circuit needs to be designed according to the characteristics of millimeter waves

Method used

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  • Micro-energy collection and maximum power output device and method for microwave energy transmission system
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  • Micro-energy collection and maximum power output device and method for microwave energy transmission system

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Embodiment Construction

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the illustrations in the implementation of the present invention.

[0036] Such as figure 1 As shown, a millimeter-wave micro-energy collection and maximum power output device provided by the present invention includes a millimeter-wave protection circuit, a basic boost dynamic impedance matching circuit, and an energy storage device using a lithium battery or a supercapacitor for real-time collection of millimeter waves. The micro energy of the wave.

[0037] Among them, the protection circuit is directly connected to the millimeter-wave rectifying antenna, and the millimeter-wave antenna is equipped with a rectifying diode for its protection. The protection circuit uses a TVS diode in parallel with the rectifying antenna to protect the rectifying diode. The protection time is ns level, which can buffer and consume the energy released ...

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Abstract

The invention relates to a micro-energy collection and maximum power output device and method of a microwave energy transmission system. The device includes a protection circuit of a microwave antenna rectification circuit, a dynamic impedance matching circuit, an energy storage device and a maximum power tracking controller. The invention is not only applicable to microwave energy transmission systems in various frequency bands such as millimeter waves, but also applicable to micro-energy receiving devices such as solar cells. The invention uses a boost circuit to dynamically match the internal resistance of the micro-energy power supply in real time, and maintains the equivalent load of the micro-energy power supply at the optimum impedance, thereby ensuring the maximum power output of the micro-energy. The energy storage device uses supercapacitors or batteries to collect micro energy. When the energy receiving device is not connected to the load, it can collect the micro energy at the fastest speed. The invention adopts the MPPT algorithm to ensure that the output power of the boost converter always tracks the change of the input power, ensures that the circuit works at the maximum power point, and improves the conversion efficiency of the millimeter wave energy transmission system or other micro energy receiving systems.

Description

technical field [0001] The invention relates to a micro-energy collection and maximum power output device and method suitable for microwave energy transmission systems such as millimeter waves, and belongs to the technical field of micro-energy collection for microwave wireless energy transmission or power supply for low-power electronic systems. Background technique [0002] Compared with traditional energy transmission methods, microwave energy transmission technology has its unique advantages, such as no transmission medium, fast speed, low loss, and easy re-layout. Due to its high frequency and short wavelength, millimeter wave energy transmission has great advantages in reducing the size of the antenna, and can effectively improve the aspect ratio of microwave energy transmission. However, the energy output by a single millimeter-wave antenna is extremely weak, and it is necessary to design a maximum power output circuit according to the characteristics of millimeter wa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J50/20
CPCH02J50/20
Inventor 何小斌蓝建宇谢伟郑奕
Owner SHANGHAI INST OF SPACE POWER SOURCES
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