Flying capacitor resonant pole inverter with direct inductor current feedback

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Industrial applications, such as semiconductor manufacturing equipment, require power amplifiers that provide high power with high precision and bandwidth. The Flying Capacitor Resonant Pole Inverter (FC RPI) provides a multilevel configuration with high switching frequencies and Zero-Voltage Switching (ZVS) across the entire operating range. However, the charge-based modulation scheme that is applied to ensure ZVS depends heavily on correct measurement of the zero-crossings of the filter inductor current. The delay incorporated in the measurement chain results in significant distortion of the output current, which deteriorates the performance of the end application. This research proposes to apply direct current feedback of the per-period average filter inductor current, measured using a high bandwidth Anisotropic Magneto-Resistive (AMR) sensor, to correct the distortion introduced in the output current. The simulation results of the complete converter and control configuration indicate a significant improvement in performance: 9dB increase in Spurious Free Dynamic Range (SFDR) and 16dB decrease in Total Harmonic Distortion (THD).
LanguageEnglish
Pages444-451
Number of pages8
JournalIEEJ Transactions on Industry Applications
Volume8
Issue number3
DOIs
StatePublished - 8 May 2019

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Zero voltage switching
Poles
Capacitors
Feedback
Bandwidth
Harmonic distortion
Switching frequency
Power amplifiers
Industrial applications
Modulation
Semiconductor materials
Sensors

Cite this

@article{45066c52b61d4709a9b272d42c596023,
title = "Flying capacitor resonant pole inverter with direct inductor current feedback",
abstract = "Industrial applications, such as semiconductor manufacturing equipment, require power amplifiers that provide high power with high precision and bandwidth. The Flying Capacitor Resonant Pole Inverter (FC RPI) provides a multilevel configuration with high switching frequencies and Zero-Voltage Switching (ZVS) across the entire operating range. However, the charge-based modulation scheme that is applied to ensure ZVS depends heavily on correct measurement of the zero-crossings of the filter inductor current. The delay incorporated in the measurement chain results in significant distortion of the output current, which deteriorates the performance of the end application. This research proposes to apply direct current feedback of the per-period average filter inductor current, measured using a high bandwidth Anisotropic Magneto-Resistive (AMR) sensor, to correct the distortion introduced in the output current. The simulation results of the complete converter and control configuration indicate a significant improvement in performance: 9dB increase in Spurious Free Dynamic Range (SFDR) and 16dB decrease in Total Harmonic Distortion (THD).",
author = "Sjef Settels and Jorge Duarte and {van Duivenbode}, Jeroen",
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Flying capacitor resonant pole inverter with direct inductor current feedback. / Settels, Sjef (Corresponding author); Duarte, Jorge; van Duivenbode, Jeroen.

In: IEEJ Transactions on Industry Applications, Vol. 8, No. 3, 08.05.2019, p. 444-451.

Research output: Contribution to journalArticleAcademicpeer-review

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AU - Settels,Sjef

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AU - van Duivenbode,Jeroen

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N2 - Industrial applications, such as semiconductor manufacturing equipment, require power amplifiers that provide high power with high precision and bandwidth. The Flying Capacitor Resonant Pole Inverter (FC RPI) provides a multilevel configuration with high switching frequencies and Zero-Voltage Switching (ZVS) across the entire operating range. However, the charge-based modulation scheme that is applied to ensure ZVS depends heavily on correct measurement of the zero-crossings of the filter inductor current. The delay incorporated in the measurement chain results in significant distortion of the output current, which deteriorates the performance of the end application. This research proposes to apply direct current feedback of the per-period average filter inductor current, measured using a high bandwidth Anisotropic Magneto-Resistive (AMR) sensor, to correct the distortion introduced in the output current. The simulation results of the complete converter and control configuration indicate a significant improvement in performance: 9dB increase in Spurious Free Dynamic Range (SFDR) and 16dB decrease in Total Harmonic Distortion (THD).

AB - Industrial applications, such as semiconductor manufacturing equipment, require power amplifiers that provide high power with high precision and bandwidth. The Flying Capacitor Resonant Pole Inverter (FC RPI) provides a multilevel configuration with high switching frequencies and Zero-Voltage Switching (ZVS) across the entire operating range. However, the charge-based modulation scheme that is applied to ensure ZVS depends heavily on correct measurement of the zero-crossings of the filter inductor current. The delay incorporated in the measurement chain results in significant distortion of the output current, which deteriorates the performance of the end application. This research proposes to apply direct current feedback of the per-period average filter inductor current, measured using a high bandwidth Anisotropic Magneto-Resistive (AMR) sensor, to correct the distortion introduced in the output current. The simulation results of the complete converter and control configuration indicate a significant improvement in performance: 9dB increase in Spurious Free Dynamic Range (SFDR) and 16dB decrease in Total Harmonic Distortion (THD).

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