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Voltage adjustment for an energy harvester

An energy harvester, voltage regulation technology, applied in the direction of synchronous motors, electrical components, control generators, etc. for single-phase current, can solve problems such as being located within a predetermined range, and achieve increased complexity and cost, cost reduction, number reduction effect

Inactive Publication Date: 2015-08-19
AB SKF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has been observed that the output voltage provided by conventional energy harvesting devices may not be within the predetermined range in all cases or situations, which may lead to the prohibition of operating the load in these situations

Method used

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  • Voltage adjustment for an energy harvester
  • Voltage adjustment for an energy harvester
  • Voltage adjustment for an energy harvester

Examples

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Embodiment Construction

[0037] Various example embodiments will now be described more fully with reference to the accompanying drawings in which some example embodiments are shown. In the drawings, the thickness of lines, layers and / or regions are exaggerated for clarity.

[0038] Accordingly, the example embodiments are capable of various modifications and alternative forms, and the embodiments in the drawings are shown by way of example and will be described in detail herein. It should be understood, however, that example embodiments are not limited to the particular forms disclosed, but on the contrary, example embodiments are to cover all modifications, equivalents, and alternatives falling within the scope of the invention. Throughout the description of the figures, like numbers refer to like or similar elements.

[0039] It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or...

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PUM

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Abstract

An arrangement (111,211) for voltage adjustment for an energy harvester (101,201) comprises: a first input terminal (131,231) and a second input terminal (133, 233) adapted to receive a AC voltage therebetween, the AC voltage having an input magnitude, the AC voltage being supplied at an inductance (107,207); a switch module (135,235) connected between the first input terminal (131,231) and the second input terminal (133,233) for controllably connecting the first input terminal with the second input terminal; and a controller (127) adapted to receive an input signal (129,229) indicative of the input magnitude of the voltage, and to control the switch module (135,235) to operate selectively in a first mode (121) or a second mode (125) depending on the input magnitude, in order to adjust the voltage to have an output magnitude in a predetermined range.

Description

technical field [0001] The invention relates to a voltage adjustment device for energy collection equipment, an energy collection equipment and a voltage adjustment method for energy collection equipment. Background technique [0002] Self-powered sensors (specifically, sensors not connected to the utility grid) typically derive their energy from a small electromagnetic source capable of producing low AC voltages. Since the sensor requires a DC voltage, it may be necessary to rectify the AC voltage provided by a small electromagnetic source to produce a DC voltage. As a result, the rectification process may reduce the efficiency of the energy harvester, in particular due to the voltage drop at the diodes used. In order to compensate the voltage drop caused by the diodes, it has been proposed to use a boost converter without using an additional inductor. [0003] Energy harvesting devices (also called energy harvesters or specifically electromagnetic energy harvesters) may ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/06H02K19/06H02M1/00
CPCH02M7/06H02M2001/0045H02M1/0045G01P3/48H02M7/217H02P9/48
Inventor F.巴特尔A.C.范德哈姆
Owner AB SKF