Design of a low input voltage converter for thermoelectric generator

Damaschke, J.M.

doi:10.1109/apec.1996.500539

Cited by 16 publications

(20 citation statements)

References 3 publications

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“…JFETs. This also confirms that increasing n can compensate for higher R S as predicted by (14), and that higher R S for the same value of n could be very critical for the activation voltage. Concerning the inductor, a first consideration is that it has a smaller size than the MTs adopted in conventional step-up …”

Section: Performance Improvementsupporting

confidence: 83%

A 32 mV/69 mV input voltage booster based on a piezoelectric transformer for energy harvesting applications

Curnis

Romani

Macrelli

et al. 2015

Sensors and Actuators A: Physical

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Section: Performance Improvementsupporting

confidence: 83%

A 32 mV/69 mV input voltage booster based on a piezoelectric transformer for energy harvesting applications

Curnis

Romani

Macrelli

et al. 2015

Sensors and Actuators A: Physical

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“…Since is designed to be one half the period of the signal, the condition on to achieve maximum power transfer can be given by (8) Thus, if we can design suitably for a given and , we can extract maximum power available from the thermoelectric harvester. For an of 5 and an of 22 m, should be 28.4 kHz.…”

Section: B Maximum Power Extraction Methodologymentioning

confidence: 99%

“…[8] presents a circuit that is completely electronic and can startup from voltages as low as 20 mV without the help of a battery. While this circuit does not need other peripherals to assist startup, it needs a bulky transformer with a large turns ratio and an external N-channel JFET to achieve startup from low voltages, and hence is not very well suited to portable applications.…”

Section: Low Voltage Startupmentioning

confidence: 99%

A Battery-Less Thermoelectric Energy Harvesting Interface Circuit With 35 mV Startup Voltage

Ramadass

Chandrakasan

2011

IEEE J. Solid-State Circuits

473

169

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A battery-less thermoelectric energy harvesting interface circuit to extract electrical energy from human body heat is implemented in a 0.35 m CMOS process. A mechanically assisted startup circuit enables operation of the system from input voltages as low as 35 mV. An efficient control circuit that performs maximal transfer of the extracted energy to a storage capacitor and regulates the output voltage at 1.8 V is presented.Index Terms-Energy harvesting, low voltage startup, maximum power point tracking, micro-power DC-DC converters, thermoelectric energy harvesters.

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“…To maintain a high energytransfer efficiency, it is also imperative to provide maximum power point tracking (MPPT) in the boost converter, while providing acceptable output voltage levels. Thermal harvesters popularly use the three-stage step-up architecture with various start up mechanisms such as a pre-charged battery, offchip transformers, or mechanically assisted switches [35], [36], [37]. However, the low conversion efficiency and bulky off-chip components limit the widespread usability of these harvesters.…”

Section: Energy Harvestingmentioning

confidence: 99%

Robust, reconfigurable, and power-efficient biosignal recording systems

Karkare

Chandrakumar

Rozgic

et al. 2014

Proceedings of the IEEE 2014 Custom Integrated Circuits Conference

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Wireless sensing of electrophysiological signals in day-to-day life will enable various clinical, research, and wellness applications. This paper reviews the design requirements of biosignal recording interfaces for use in remote, unconstrained environments and put the performance achieved by state-of-theart designs in perspective.In particular, we emphasize the need for biosignal recording front-ends to provide a dynamic range of approximately 100 dB, while meeting an input-referred noise level of a few µV rms. It is difficult to achieve a low input-referred noise and a high dynamic range using conventional voltage-domain amplifiers; state-of-theart designs provide only ∼60 dB of dynamic range. We propose to process electrophysiological signals in the phase domain, since there is no physical bound on phase. Low-noise VCO-based front-ends can be designed to extend the dynamic range by ∼40dB without paying a significant power, noise, or area penalty compared to state-of-the-art biosignal recording front-ends.For high-channel-count action-potential recording systems the system power is dominated by the transmitter if raw data is transmitted. In spite of the power reduction achieved by innovative biomedical transmitter designs, on-chip processing becomes necessary to reduce the output data rate for manychannel recording systems. It is important for neuroscientists and electrical engineers to agree upon a scheme to reduce the output data rate. We enlist and discuss a few data-rate reduction options for action-potential recordings. In addition, it is also desirable to make the biosignal sensors self-powered, thus avoiding the need for battery replacement/recharging. We briefly review existing energy-harvesting techniques and discuss future directions.

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Design of a low input voltage converter for thermoelectric generator

Cited by 16 publications

References 3 publications

A 32 mV/69 mV input voltage booster based on a piezoelectric transformer for energy harvesting applications

A 32 mV/69 mV input voltage booster based on a piezoelectric transformer for energy harvesting applications

A Battery-Less Thermoelectric Energy Harvesting Interface Circuit With 35 mV Startup Voltage

Robust, reconfigurable, and power-efficient biosignal recording systems

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