Silicon carbide based instrumentation amplifiers for extreme applications

Chan, Hua Khee; Wood, Neal; Vassilevski, Konstantin; Wright, N. G.; Peters, Alexandra E.; Horsfall, Alton B.

doi:10.1109/icsens.2015.7370504

Cited by 2 publications

(1 citation statement)

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“…By offering scalable and cost-effectively materials processing, SiC devices have become part of the mainstream in power electronic applications [5,6] and a number of conferences are running dedicated sessions to the deployment of this technology from niche to mainstream. Further advantages in terms of small, signal level devices [7], sensors [8] and CMOS circuitry [9] have resulted in significant improvements in capabilities, however these are still only available at research level, where a number of groups are active. During recent years, SiC has emerged as a promising material for electronics where the underlying rationale for the continued investment in SiC technology is the excellent material properties.…”

Section: Introductionmentioning

confidence: 99%

Self-Oscillatory DC-DC Converter Circuits for Energy Harvesting in Extreme Environments

Weng¹,

Brennan²,

Wright³

et al. 2018

Advanced Electronic Circuits - Principles, Architectures and Applications on Emerging Technologies

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A novel self-starting converter circuit technology is described for energy harvesting and powering wireless sensor nodes, constructed from silicon carbide devices and proprietary high temperature passives for deployment in hostile environments. After a brief review of the advantages using Silicon Carbide (SiC) over other semiconductors in extreme environments, the chapter will describe the advantages and principles when designing circuitry and architectures using SiC for power electronics. The practical results from a novel self-starting DC-DC converter are reported, which is designed to supply power to a WSN for deployment in high temperature environments. The converter operates in the boundary between continuous and discontinuous mode of operation and has a Voltage Conversion Ratio (VCR) of 3 at 300 C. This topology is able to self-start and so requires no external control circuitry, making it ideal for energy harvesting applications, where the energy supply may be intermittent. Experimental results for the self-starting converter operating from room temperature up to 300 C are presented. The converter output voltage, switching frequency, total power loss and efficiency were presented at temperatures up to 300 C.

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Section: Introductionmentioning

confidence: 99%