Efficient direct ac-to-dc converters for vibration-based low voltage energy harvesting

Dwari, Suman; Dayal, Rohan; Parsa, Leila; Salama, Khaled N.

doi:10.1109/iecon.2008.4758319

Cited by 33 publications

(19 citation statements)

References 7 publications

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“…It should be noted that the converters are operated in discontinuous conduction mode (DCM) to reduce switching losses and enable simple voltage feedback control. A brief summary of their operation is presented henceforth [18] (Fig. 2c).…”

Section: Converter Operationmentioning

confidence: 99%

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Low-power low-voltage AC–DC converters for electromagnetic energy harvesting with efficient indirect feedback scheme

Dayal¹,

Persa

2012

IET Power Electron.

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In this study, two single-stage AC -DC converters for low-voltage electromagnetic energy harvesting are presented. The converters are designed to boost very low AC voltage (hundreds of millivolts) to a high DC voltage (3.3 V DC). The successful operation of such systems depends on proper development of control and driver circuits. The converters also need to be designed in proper accordance with the associated microgenerator. Detailed discussion on the design and selection of critical components of the converter is also presented. Low-power driver circuits are used to enable a self-sustaining system. Unlike DC -DC converters, direct AC -DC converters generally do not have a common ground. Such a structure makes implementation of feedback and control difficult. A novel indirect feedback strategy is proposed to solve this problem. The idea is to obtain the output voltage information referenced to the system ground. The feedback circuit is very simple to implement and consumes very low power. An auxiliary supply has also been designed to provide power to the gate drivers. It is shown that the indirect feedback strategy also works for load variations. Both simulation and experimental results with a suitable microgenerator are presented to verify the self-sustainable efficient operation of the harvesting systems.

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Section: Converter Operationmentioning

confidence: 99%

“…Dwari et al [18] have also presented two direct AC-DC converters for low-voltage energy harvesting applications (Fig. 2).…”

Section: Introductionmentioning

confidence: 97%

Low-power low-voltage AC–DC converters for electromagnetic energy harvesting with efficient indirect feedback scheme

Dayal¹,

Persa

2012

IET Power Electron.

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“…A DC-DC converter with rectifier which is shown in Fig. 16 has been implemented [52]. This type of power conditioning circuit enhances the overall efficiency of the power converter.…”

Section: Power Conditioning Circuitsmentioning

confidence: 99%

“…16. DC-DC converter with rectifier [52] In the power conditioning circuit of the energy harvesting [55,56,57] system, start-up is another very important issue. For the power converter circuit to work, we need to power up the control circuit first.…”

Section: Power Conditioning Circuitsmentioning

confidence: 99%

A Contemporary Survey on Energy Harvesting Techniques for Next Generation Implantable Bio-Medical Devices

J¹,

Janakirani²

2018

VLSICS

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“…2 shows a range of RF-to-DC rectifiers that have traditionally been implemented. Diode-based rectifiers [7], such as Dickson (Fig. 2a) [8], have good performance at high RF power.…”

Section: Introductionmentioning

confidence: 99%

A highly sensitive RF-to-DC power converter with an extended dynamic range

Almansouri

Ouda

Salama

2017

2017 IEEE 60th International Midwest Symposium on Circuits and Systems (MWSCAS)

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Efficient direct ac-to-dc converters for vibration-based low voltage energy harvesting

Cited by 33 publications

References 7 publications

Low-power low-voltage AC–DC converters for electromagnetic energy harvesting with efficient indirect feedback scheme

Low-power low-voltage AC–DC converters for electromagnetic energy harvesting with efficient indirect feedback scheme

A Contemporary Survey on Energy Harvesting Techniques for Next Generation Implantable Bio-Medical Devices

A highly sensitive RF-to-DC power converter with an extended dynamic range

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