Active autonomous AC-DC converter for Piezoelectric Energy Scavenging Systems

Dallago, E.; Miatton, D.; Venchi, G.; Bottarel, V.; Frattini, Giovanni; Ricotti, G.; Schipani, M.

doi:10.1109/cicc.2008.4672145

Cited by 33 publications

(18 citation statements)

References 5 publications

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“…Table I benchmarks several recently reported AC-to-DC converters from various types, which were described in previous sections, along with the proposed active voltage doubler that was presented and characterized in sections IV and V, respectively. To the best of our knowledge there has been only one active voltage doubler reported in the literature, which was designed to operate at low frequencies in the order of 100 Hz for energy scavenging from piezoelectric transducers [36]. As such, the earlier solution was not suitable for inductively powered applications.…”

Section: B Pce and Dropout Voltage Measurementsmentioning

confidence: 99%

Fully integrated power-efficient AC-to-DC converter design in inductively-powered biomedical applications

Lee

Ghovanloo

2011

2011 IEEE Custom Integrated Circuits Conference (CICC)

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In this paper we have reviewed several types of integrated AC-to-DC converters which have been widely used for inductively-powered applications. The limitations for achieving high power conversion efficiency (PCE) in each AC-to-DC converter have been considered in order to design highly powerefficient converters for applications that are in need of higher power levels with very low heat dissipation, such as implantable microelectronic devices (IMD). In this paper, we also propose a fully integrated active voltage doubler with offset-controlled high speed comparators, which provides much lower dropout voltage and far better PCE at high frequency (HF) range compared to its passive counterparts. Our active voltage doubler was fabricated in a 0.5-µm 3M2P standard CMOS process, occupying 0.144 mm 2 of chip area. With 1.72 V peak AC input at 13.56 MHz, the active voltage doubler provides 2.4 V DC output across the 1 kΩ load, achieving high PCE of 78%.

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Section: B Pce and Dropout Voltage Measurementsmentioning

confidence: 99%

Fully integrated power-efficient AC-to-DC converter design in inductively-powered biomedical applications

Lee

Ghovanloo

2011

2011 IEEE Custom Integrated Circuits Conference (CICC)

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“…Therefore some lowthreshold schemes have been reported [3,6,8,12,14], based on fabrication technology solutions (i.e. lowthreshold transistors) or additional threshold compensation circuits.…”

Section: Introductionmentioning

confidence: 99%

An AC/DC voltage doubler with configurable power supply schemes for vibrational energy harvesting

Rao

Arnold

2013

2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC)

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This paper presents an ac/dc voltage doubler, where the output dc voltage is twice the input ac voltage amplitude. Two configurable power supply schemes are explored for the voltage doubler in vibrational energy harvesting applications. An 'input-powered' power supply scheme eliminates standby power consumption of the circuit when the harvester is not active. Alternatively, a 'crossconnected' power supply scheme reduces the minimum input voltage without additional circuit cost. Implemented in On Semi 3M-2P 0.5 µm CMOS technology, the circuit is first benchtop characterized with a signal generator and then also demonstrated with a vibrational energy harvester. A maximum power efficiency of 87% is achieved using the input-powered scheme for a 1.5 V ac input amplitude and 960 µW of output power. In the cross-connected scheme, the circuit is able to rectify input voltage amplitudes as low as 400 mV, below the transistor threshold voltage of 700 mV.

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“…Scavenging energy from piezoelectric, thermal, and solar energy has been well studied [1][2][3][4][5][6][7]. Radio frequency identification (RFID) is a popular application for remotely powered system.…”

Section: Introductionmentioning

confidence: 99%

Process and temperature robust voltage multiplier design for RF energy harvesting

Yuan

2015

Microelectronics Reliability

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Active autonomous AC-DC converter for Piezoelectric Energy Scavenging Systems

Cited by 33 publications

References 5 publications

Fully integrated power-efficient AC-to-DC converter design in inductively-powered biomedical applications

Fully integrated power-efficient AC-to-DC converter design in inductively-powered biomedical applications

An AC/DC voltage doubler with configurable power supply schemes for vibrational energy harvesting

Process and temperature robust voltage multiplier design for RF energy harvesting

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