Variable Frequency Control of the Zero-Voltage Switching Two-Inductor Boost Converter

The two-inductor boost converter has been previously presented in a zero-voltage switching (ZVS) form where the transformer leakage inductance and the MOSFET output capacitance can be utilized as part of the resonant elements. In many applications, such as maximum power point tracking (MPPT) in grid...

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Bibliographic Details
Main Authors: Li, Q., Wolfs, Peter
Other Authors: Jason Lai
Format: Conference Paper
Published: IEEE 2005
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/7616
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author Li, Q.
Wolfs, Peter
author2 Jason Lai
author_facet Jason Lai
Li, Q.
Wolfs, Peter
author_sort Li, Q.
building Curtin Institutional Repository
collection Online Access
description The two-inductor boost converter has been previously presented in a zero-voltage switching (ZVS) form where the transformer leakage inductance and the MOSFET output capacitance can be utilized as part of the resonant elements. In many applications, such as maximum power point tracking (MPPT) in grid interactive photovoltaic systems, the resonant converter is required to operate with variable input output voltage ratios. This paper studies the variable frequency control of the ZVS two-inductor boost converter to secure an adjustable output voltage range while maintaining resonant switching transitions. The design method of the resonant converter is thoroughly investigated and explicit control functions relating the circuit timing factors and the voltage gain for a 200 W converter are established. Three sets of theoretical, simulation and experimental waveforms are provided for specific operating points. A variation of the basic circuit, the resonant converter with a voltage clamp, which is capable of operating with a wider output voltage range but a lower switch voltage stress, is also given at the end of the paper
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spelling curtin-20.500.11937-76162017-10-02T02:27:19Z Variable Frequency Control of the Zero-Voltage Switching Two-Inductor Boost Converter Li, Q. Wolfs, Peter Jason Lai frequency control resonant power convertors inductors leakage currents inductance zero voltage switching switching convertors The two-inductor boost converter has been previously presented in a zero-voltage switching (ZVS) form where the transformer leakage inductance and the MOSFET output capacitance can be utilized as part of the resonant elements. In many applications, such as maximum power point tracking (MPPT) in grid interactive photovoltaic systems, the resonant converter is required to operate with variable input output voltage ratios. This paper studies the variable frequency control of the ZVS two-inductor boost converter to secure an adjustable output voltage range while maintaining resonant switching transitions. The design method of the resonant converter is thoroughly investigated and explicit control functions relating the circuit timing factors and the voltage gain for a 200 W converter are established. Three sets of theoretical, simulation and experimental waveforms are provided for specific operating points. A variation of the basic circuit, the resonant converter with a voltage clamp, which is capable of operating with a wider output voltage range but a lower switch voltage stress, is also given at the end of the paper 2005 Conference Paper http://hdl.handle.net/20.500.11937/7616 IEEE fulltext
spellingShingle frequency control
resonant power convertors
inductors
leakage currents
inductance
zero voltage switching
switching convertors
Li, Q.
Wolfs, Peter
Variable Frequency Control of the Zero-Voltage Switching Two-Inductor Boost Converter
title Variable Frequency Control of the Zero-Voltage Switching Two-Inductor Boost Converter
title_full Variable Frequency Control of the Zero-Voltage Switching Two-Inductor Boost Converter
title_fullStr Variable Frequency Control of the Zero-Voltage Switching Two-Inductor Boost Converter
title_full_unstemmed Variable Frequency Control of the Zero-Voltage Switching Two-Inductor Boost Converter
title_short Variable Frequency Control of the Zero-Voltage Switching Two-Inductor Boost Converter
title_sort variable frequency control of the zero-voltage switching two-inductor boost converter
topic frequency control
resonant power convertors
inductors
leakage currents
inductance
zero voltage switching
switching convertors
url http://hdl.handle.net/20.500.11937/7616