Low Voltage Integrated Converter for Waste Heat Theremoelectric Harvesters

Dziurdzia, P.; Mysiura, M. I.; Gołda, Adam

doi:10.2478/v10178-012-0015-x

Cited by 3 publications

(3 citation statements)

References 9 publications

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“…In many industries h.f. power amplifiers and generators find applications in induction and dielectric heaters, plasma generators, electronic ballasts for fluorescent and HID lamps, energy harvesting circuits as well as resonant dc/dc converters [1][2][3][4][5][6][7][8][9][10]. Among possible solutions amplifiers and generators utilizing high-efficiency resonant switching Class DE and Class E amplifiers are particularly attractive.…”

Section: Introductionmentioning

confidence: 99%

A self-oscillating h.f. power generator with a Class E resonant amplifier

Mikolajewski¹

2013

Bulletin of the Polish Academy of Sciences: Technical Sciences

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Self-oscillating h.f. power generators with a Class E amplifier are used as industrial high-efficiency h.f. power sources. In the paper a modification of the classic Class E generator by applying an additional capacitor in the matching and feedback circuit is presented. The proposed solution increases the degree of freedom in the generator design and can noticeably reduce its cost by eliminating the need for the use of high-value h.f. capacitors in the feedback loop divider. The self-oscillating Class E generator (150 W/6.78 MHz) with the proposed modification has been designed, built and its parameters were measured. Theoretical predictions were in a good agreement with experimental results. Moreover, the burst control method of the output power in the generator has also been presented.

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Section: Introductionmentioning

confidence: 99%

A self-oscillating h.f. power generator with a Class E resonant amplifier

Mikolajewski¹

2013

Bulletin of the Polish Academy of Sciences: Technical Sciences

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“…To obtain the functional dependency, the capacitor C2 value was expressed for the required resonance angular frequency ωres from (5). This expression was substituted into (6). The function is too complex to be presented here.…”

Section: Resonance Behaviour Of Circuitmentioning

confidence: 99%

“…and the environments (especially high-temperature ones) unsuitable for the batteries . Energy harvesting can be used to overcome the limited lifetime of batteries [6], but usually they are still not suitable to use in harsh environments. In those cases, the wireless powering is advantageous.…”

Section: Wireless Poweringmentioning

confidence: 99%

Wirelessly Powered High-Temperature Strain Measuring Probe Based on Piezoresistive Nanocrystalline Diamond Layers

Bouřa¹,

Kulha²,

Hušák³

2016

Metrology and Measurement Systems

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A high-temperature piezo-resistive nano-crystalline diamond strain sensor and wireless powering are presented in this paper. High-temperature sensors and electronic devices are required in harsh environments where the use of conventional electronic circuits is impractical or impossible. Piezo-resistive sensors based on nano-crystalline diamond layers were successfully designed, fabricated and tested. The fabricated sensors are able to operate at temperatures of up to 250°C with a reasonable sensitivity. The basic principles and applicability of wireless powering using the near magnetic field are also presented. The system is intended mainly for circuits demanding energy consumption, such as resistive sensors or devices that consist of discrete components. The paper is focused on the practical aspect and implementation of the wireless powering. The presented equations enable to fit the frequency to the optimal range and to maximize the energy and voltage transfer with respect to the coils' properties, expected load and given geometry. The developed system uses both high-temperature active devices based on CMOS-SOI technology and strain sensors which can be wirelessly powered from a distance of up to several centimetres with the power consumption reaching hundreds of milliwatts at 200°C. The theoretical calculations are based on the general circuit theory and were performed in the software package Maple. The results were simulated in the Spice software and verified on a real sample of the measuring probe.

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