Fixed-Frequency Control of Piezoelectric Resonator DC-DC Converters for Spurious Mode Avoidance

Piezoelectric resonators have shown promise as efficient, power-dense energy storage element alternatives to continue the miniaturization of DC-DC converters. However, practical piezoelectric resonators diverge from their ideal behavior due to spurious modes that cause high loss regions throughout t...

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Autores principales:	Eric Stolt, Weston D. Braun, Lei Gu, Jeronimo Segovia-Fernandez, Sombuddha Chakraborty, Ruochen Lu, Juan Rivas-Davila
Formato:	article
Lenguaje:	EN
Publicado:	IEEE 2021
Materias:	DC-DC power converters piezoelectric devices Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/a1831e5ad5854907a47d549fb6148938
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spelling	oai:doaj.org-article:a1831e5ad5854907a47d549fb61489382021-12-03T00:01:27ZFixed-Frequency Control of Piezoelectric Resonator DC-DC Converters for Spurious Mode Avoidance2644-131410.1109/OJPEL.2021.3128509https://doaj.org/article/a1831e5ad5854907a47d549fb61489382021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9616452/https://doaj.org/toc/2644-1314Piezoelectric resonators have shown promise as efficient, power-dense energy storage element alternatives to continue the miniaturization of DC-DC converters. However, practical piezoelectric resonators diverge from their ideal behavior due to spurious modes that cause high loss regions throughout their operating frequency range. Typically, control of piezoelectric resonator DC-DC converters is constrained to unidirectional power flow each resonant cycle for maximum efficiency operation. However, output power depends on the frequency with such control, which means the converter cannot operate at loads corresponding to spurious mode frequencies. This paper presents a fixed-frequency control mode utilizing the high-quality factor of piezoelectric resonators to avoid spurious modes. The fixed-frequency control enables efficient operation spanning the converter's full load range, demonstrated through a prototype DC-DC converter with a custom fabricated lithium niobate resonator. At a conversion ratio of 60 V to 30 V, spurious modes limit the converter's operating range from 33 W to 51 W using unidirectional power-constrained control, yet the fixed-frequency control extends operation from 33 W to 2 W.Eric StoltWeston D. BraunLei GuJeronimo Segovia-FernandezSombuddha ChakrabortyRuochen LuJuan Rivas-DavilaIEEEarticleDC-DC power converterspiezoelectric devicesElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENIEEE Open Journal of Power Electronics, Vol 2, Pp 582-590 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	DC-DC power converters piezoelectric devices Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	DC-DC power converters piezoelectric devices Electrical engineering. Electronics. Nuclear engineering TK1-9971 Eric Stolt Weston D. Braun Lei Gu Jeronimo Segovia-Fernandez Sombuddha Chakraborty Ruochen Lu Juan Rivas-Davila Fixed-Frequency Control of Piezoelectric Resonator DC-DC Converters for Spurious Mode Avoidance
description	Piezoelectric resonators have shown promise as efficient, power-dense energy storage element alternatives to continue the miniaturization of DC-DC converters. However, practical piezoelectric resonators diverge from their ideal behavior due to spurious modes that cause high loss regions throughout their operating frequency range. Typically, control of piezoelectric resonator DC-DC converters is constrained to unidirectional power flow each resonant cycle for maximum efficiency operation. However, output power depends on the frequency with such control, which means the converter cannot operate at loads corresponding to spurious mode frequencies. This paper presents a fixed-frequency control mode utilizing the high-quality factor of piezoelectric resonators to avoid spurious modes. The fixed-frequency control enables efficient operation spanning the converter's full load range, demonstrated through a prototype DC-DC converter with a custom fabricated lithium niobate resonator. At a conversion ratio of 60 V to 30 V, spurious modes limit the converter's operating range from 33 W to 51 W using unidirectional power-constrained control, yet the fixed-frequency control extends operation from 33 W to 2 W.
format	article
author	Eric Stolt Weston D. Braun Lei Gu Jeronimo Segovia-Fernandez Sombuddha Chakraborty Ruochen Lu Juan Rivas-Davila
author_facet	Eric Stolt Weston D. Braun Lei Gu Jeronimo Segovia-Fernandez Sombuddha Chakraborty Ruochen Lu Juan Rivas-Davila
author_sort	Eric Stolt
title	Fixed-Frequency Control of Piezoelectric Resonator DC-DC Converters for Spurious Mode Avoidance
title_short	Fixed-Frequency Control of Piezoelectric Resonator DC-DC Converters for Spurious Mode Avoidance
title_full	Fixed-Frequency Control of Piezoelectric Resonator DC-DC Converters for Spurious Mode Avoidance
title_fullStr	Fixed-Frequency Control of Piezoelectric Resonator DC-DC Converters for Spurious Mode Avoidance
title_full_unstemmed	Fixed-Frequency Control of Piezoelectric Resonator DC-DC Converters for Spurious Mode Avoidance
title_sort	fixed-frequency control of piezoelectric resonator dc-dc converters for spurious mode avoidance
publisher	IEEE
publishDate	2021
url	https://doaj.org/article/a1831e5ad5854907a47d549fb6148938
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Fixed-Frequency Control of Piezoelectric Resonator DC-DC Converters for Spurious Mode Avoidance

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