Low-power methods of power sensing and frequency detection for wideband vibration energy harvesting

Plamen Proynov, Bernard Stark, Neville McNeill

Research output: Contribution to journalConference Contribution

Abstract

Power maximisation techniques in wideband vibration energy harvesting typically require the periodic sensing of input power or excitation frequency. This paper presents low- power circuits and sensing methods to obtain this information. First, an excitation frequency measurement circuit is presented that permits a reduced timer run-time compared to reported methods. Second, a power sensing method is presented, which extends the measurement range of reported techniques by adapting to the levels of the available power. Experimental results for the frequency measurement circuit tested in the range 35-51 Hz show a power consumption of 3.7 μW. The power-sensing technique is experimentally validated over a power range of 370690 μW, and its power consumption is 7.5 μW.

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Energy harvesting
Vibrations (mechanical)
broadband
vibration
Networks (circuits)
frequency measurement
Electric power utilization
timing devices
energy
rangefinding
excitation

Keywords

  • power sensing
  • frequency detection
  • power consumption

Cite this

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title = "Low-power methods of power sensing and frequency detection for wideband vibration energy harvesting",
abstract = "Power maximisation techniques in wideband vibration energy harvesting typically require the periodic sensing of input power or excitation frequency. This paper presents low- power circuits and sensing methods to obtain this information. First, an excitation frequency measurement circuit is presented that permits a reduced timer run-time compared to reported methods. Second, a power sensing method is presented, which extends the measurement range of reported techniques by adapting to the levels of the available power. Experimental results for the frequency measurement circuit tested in the range 35-51 Hz show a power consumption of 3.7 μW. The power-sensing technique is experimentally validated over a power range of 370690 μW, and its power consumption is 7.5 μW.",
keywords = "power sensing, frequency detection, power consumption",
author = "Plamen Proynov and Bernard Stark and Neville McNeill",
year = "2014",
month = "11",
doi = "10.1088/1742-6596/557/1/012127",
language = "English",
volume = "557",
journal = "Journal of Physics: Conference Series",
issn = "1742-6588",
number = "1",

}

Low-power methods of power sensing and frequency detection for wideband vibration energy harvesting. / Proynov, Plamen; Stark, Bernard; McNeill, Neville.

In: Journal of Physics: Conference Series, Vol. 557, No. 1, 012127, 11.2014.

Research output: Contribution to journalConference Contribution

TY - JOUR

T1 - Low-power methods of power sensing and frequency detection for wideband vibration energy harvesting

AU - Proynov, Plamen

AU - Stark, Bernard

AU - McNeill, Neville

PY - 2014/11

Y1 - 2014/11

N2 - Power maximisation techniques in wideband vibration energy harvesting typically require the periodic sensing of input power or excitation frequency. This paper presents low- power circuits and sensing methods to obtain this information. First, an excitation frequency measurement circuit is presented that permits a reduced timer run-time compared to reported methods. Second, a power sensing method is presented, which extends the measurement range of reported techniques by adapting to the levels of the available power. Experimental results for the frequency measurement circuit tested in the range 35-51 Hz show a power consumption of 3.7 μW. The power-sensing technique is experimentally validated over a power range of 370690 μW, and its power consumption is 7.5 μW.

AB - Power maximisation techniques in wideband vibration energy harvesting typically require the periodic sensing of input power or excitation frequency. This paper presents low- power circuits and sensing methods to obtain this information. First, an excitation frequency measurement circuit is presented that permits a reduced timer run-time compared to reported methods. Second, a power sensing method is presented, which extends the measurement range of reported techniques by adapting to the levels of the available power. Experimental results for the frequency measurement circuit tested in the range 35-51 Hz show a power consumption of 3.7 μW. The power-sensing technique is experimentally validated over a power range of 370690 μW, and its power consumption is 7.5 μW.

KW - power sensing

KW - frequency detection

KW - power consumption

UR - http://iopscience.iop.org/article/10.1088/1742-6596/557/1/012127/meta

U2 - 10.1088/1742-6596/557/1/012127

DO - 10.1088/1742-6596/557/1/012127

M3 - Conference Contribution

VL - 557

JO - Journal of Physics: Conference Series

T2 - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

IS - 1

M1 - 012127

ER -