Development of a simplified hybrid ambient low frequency, low intensity vibration energy scavenger system

Khbeis, M.; McGee, J.; Ghodssi, Reza

doi:10.1109/sensor.2009.5285377

Cited by 15 publications

(18 citation statements)

References 3 publications

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“…Fig. 21 shows the completed A hybrid low frequency, low intensity vibration energy harvester that couples piezoelectric and electrostatic transduction mechanisms is proposed in [110]. It is an electrostatic oscillator suspended by piezoelectric springs, as shown in Fig.…”

Section: Mitcheson Et Al: Energy Harvesting From Human and Machine Mmentioning

confidence: 99%

Energy Harvesting From Human and Machine Motion for Wireless Electronic Devices

et al. 2008

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Section: Mitcheson Et Al: Energy Harvesting From Human and Machine Mmentioning

confidence: 99%

Energy Harvesting From Human and Machine Motion for Wireless Electronic Devices

et al. 2008

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“…The architecture of energy harvesting circuit is object of several studies with the intention to obtain a higher energy amount [4]- [8]. In general, this architecture is built from a charge pump and a flyback circuit.…”

Section: Abstract1mentioning

confidence: 99%

“…(5) (6) The energy amount that the system gained in a specific interval of time can be found by subtracting the final energy over C res and C store from the initial energy over these capacitors. The expressions ( 7) and (8) show the calculus of the total gain of energy. Where the f and ini rates indicate the end and initial values, respectively, of each variable.…”

Section: Energy Harvesting Through Circuits With Variable Capacitormentioning

confidence: 99%

Energy Harvesting Circuit Using Variable Capacitor with Higher Performance

Florentino¹,

Galayko²,

Freire³

et al. 2020

JICS

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The search for compact autonomous devices has been increasing in the microelectronics industry. These devices have the capacity to generate their own energy in order to be charged. One of the ways of harvesting environmental energy for charging such devices is by using mechanical vibrations through the use of variable capacitor. Taking this principle into account, this work presents a behavioral analysis of a system model of harvesting vibratory energy for low power, made up of a circuit which includes a variable capacitor. An architecture of a circuit which improves the relation concerning the amount of harvested energy/circuit area in relation to conventional architectures is also presented as well as a comparison between the circuit with the proposed architecture and the conventional circuit. In this way, it was verified that, under the same functioning conditions, the conventional circuit harvested a maximum power of 4,5 μW whereas the circuit with the new architecture harvested a 6,25 μW power.

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“…Another advantage is the possibility to harvest energy from different energy sources: from the human/animal body movements, solar heat, environmental vibrations, temperature gradients amongst others. Harvesters able to use more than one source (hybrid generator) are under study and the preliminary results are very promising [6]. This ability makes the use of the energy harvester a really flexible solution.…”

Section: Introductionmentioning

confidence: 99%