A High Frequency Inverter for Variable Load Operation

Inverters operating at high frequency (HF, 3-30MHz) are important to numerous industrial and commercial applications such as induction heating, plasma generation, and wireless power transfer. A major challenge in these applications is that the load impedance can vary dynamically in both real and com...

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Main Authors: Braun, Weston, Perreault, David J
Other Authors: Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Format: Article
Language:English
Published: Institute of Electrical and Electronics Engineers (IEEE) 2020
Online Access:https://hdl.handle.net/1721.1/123510
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author Braun, Weston
Perreault, David J
author2 Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
author_facet Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Braun, Weston
Perreault, David J
author_sort Braun, Weston
collection MIT
description Inverters operating at high frequency (HF, 3-30MHz) are important to numerous industrial and commercial applications such as induction heating, plasma generation, and wireless power transfer. A major challenge in these applications is that the load impedance can vary dynamically in both real and complex components over a wide range, making it difficult to maintain high-efficiency soft-switched operation. The constraints that a variable load impedance place on high frequency inverter design results in systems that are often bulky, expensive, and inefficient. This paper presents the design, physical prototype, controller, and experimental results of a high-frequency variable load inverter that is able to directly drive widely variable loads with high efficiency. The prototype can deliver 1kW into a 22 ohm load at 95.4% efficiency as well as deliver significant power to a wide range of both capacitive and inductive loads.
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spelling mit-1721.1/1235102022-10-01T10:53:14Z A High Frequency Inverter for Variable Load Operation Braun, Weston Perreault, David J Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Inverters operating at high frequency (HF, 3-30MHz) are important to numerous industrial and commercial applications such as induction heating, plasma generation, and wireless power transfer. A major challenge in these applications is that the load impedance can vary dynamically in both real and complex components over a wide range, making it difficult to maintain high-efficiency soft-switched operation. The constraints that a variable load impedance place on high frequency inverter design results in systems that are often bulky, expensive, and inefficient. This paper presents the design, physical prototype, controller, and experimental results of a high-frequency variable load inverter that is able to directly drive widely variable loads with high efficiency. The prototype can deliver 1kW into a 22 ohm load at 95.4% efficiency as well as deliver significant power to a wide range of both capacitive and inductive loads. 2020-01-21T21:11:45Z 2020-01-21T21:11:45Z 2018-12 2018-09 2020-01-16T13:38:58Z Article http://purl.org/eprint/type/ConferencePaper 9781479973125 2329-3748 https://hdl.handle.net/1721.1/123510 Braun, Weston D. and David J. Perrault. "A High Frequency Inverter for Variable Load Operation." 2018 IEEE Energy Conversion Congress and Exposition (ECCE), September 2018, Portland, Oregon, USA, Institute of Electrical and Electronics Engineers (IEEE), December 2018 © 2018 IEEE en http://dx.doi.org/10.1109/ecce.2018.8558145 2018 IEEE Energy Conversion Congress and Exposition (ECCE) Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Institute of Electrical and Electronics Engineers (IEEE) Prof. Perreault via Phoebe Ayers
spellingShingle Braun, Weston
Perreault, David J
A High Frequency Inverter for Variable Load Operation
title A High Frequency Inverter for Variable Load Operation
title_full A High Frequency Inverter for Variable Load Operation
title_fullStr A High Frequency Inverter for Variable Load Operation
title_full_unstemmed A High Frequency Inverter for Variable Load Operation
title_short A High Frequency Inverter for Variable Load Operation
title_sort high frequency inverter for variable load operation
url https://hdl.handle.net/1721.1/123510
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