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Power optimization device for energy harvesting apparatus and method thereof

An energy harvesting and optimization technology, applied in circuit devices, conversion equipment without intermediate conversion to AC, photovoltaic power generation, etc., can solve the problems of unfavorable wearable products, and achieve the best output power without being affected by ambient temperature The effect of miniaturization and small size

Active Publication Date: 2017-06-27
NUVOTON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the efficiency of this type of converter is high enough, this type of switching power converter inevitably requires a large inductor as an energy storage element
But larger area components will not be conducive to wearable products

Method used

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  • Power optimization device for energy harvesting apparatus and method thereof
  • Power optimization device for energy harvesting apparatus and method thereof
  • Power optimization device for energy harvesting apparatus and method thereof

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Embodiment Construction

[0068] In order for the benefit examiner to understand the technical features, content and advantages of the present invention and the effects it can achieve, the present invention is hereby combined with the accompanying drawings, and described in detail in the form of embodiments as follows, and the accompanying drawings used therein, Its purpose is only for illustration and auxiliary instructions, not necessarily the true proportion and precise configuration of the present invention after implementation, so it should not be interpreted based on the proportion and configuration relationship of the attached drawings, and limit the scope of rights of the present invention in actual implementation , together first describe.

[0069] As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. When the statement "at least one of" precedes a list of elements, it modifies the entire list element and not the individual elements ...

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Abstract

A power optimization device and method thereof for energy harvesting apparatus are disclosed. The power optimization device includes a charge pump, a voltage comparator, an output switch, a counter and a frequency control module. By detecting the voltage outputted from the power optimization device under various operating frequencies to obtain a calculation result and increase or decrease an operating frequency of the charge pump according to the calculation result, so as to dynamically adjust the operating frequency to optimize the power outputted from the power optimization device according to the voltage outputted from the energy harvesting apparatus to an electricity storage unit and energy loss caused by the change of the operating frequency.

Description

technical field [0001] The present invention relates to a power optimization device and method for energy harvesting equipment, more precisely, it relates to a method for tracking the maximum power point of the output voltage of the charge pump and correspondingly adjusting the operating frequency so that the energy Apparatus and method for power optimization of collection equipment. Background technique [0002] Energy harvesting and harvesting technology has been used in various fields for quite a long time. The main purpose of this technology is to harvest energy in nature, such as light (light), heat (Thermal), electromagnetic (Electromagnetic) or It is vibration (Vibration) can. This type of energy is obtained in a similar way to green energy, but the difference is that the object of energy harvesting technology is usually a rather small energy source. [0003] With the advancement of integrated circuit (integrated circuit) design and the development of the Internet, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38H02M3/07
CPCH02J3/385H02M3/07H03K5/24Y02E10/56
Inventor 谢仲铭许伟展
Owner NUVOTON