Phase Locked Loop (PLL) based self-oscillating controller for LCC resonant converters

Gilbert, A G and Foster, M P and Stone, D A and Bingham, Chris (2008) Phase Locked Loop (PLL) based self-oscillating controller for LCC resonant converters. In: Power Electronics Machines and Drives PEMD 2008 Conference, 2-4 April 2008, University of York UK.

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Phase Locked Loop (PLL) based self-oscillating controller for LCC resonant converters
The paper describes a controller for the LCC resonant converter that employs a Phase-Locked Loop (PLL) to generate switch timing signals from measurements of current in the resonant circuit. A major advantage of the control methodology is that operation is automatically restricted to be above the resonant frequency thereby ensuring inductive switching. Furthermore, the 'phase-locked' nature of the controller improves robustness by reducing the system's sensitivity to parameter variations and permits more of the converter's frequency characteristic to be utilised, offering the potential for higher power densities to be achieved.
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Abstract

The paper describes a controller for the LCC resonant
converter that employs a Phase-Locked Loop (PLL) to
generate switch timing signals from measurements of current
in the resonant circuit. A major advantage of the control
methodology is that operation is automatically restricted to be
above the resonant frequency thereby ensuring inductive
switching. Furthermore, the 'phase-locked' nature of the
controller improves robustness by reducing the system's
sensitivity to parameter variations and permits more of the
converter's frequency characteristic to be utilised, offering the
potential for higher power densities to be achieved.

Item Type:Conference or Workshop Item (Presentation)
Additional Information:The paper describes a controller for the LCC resonant converter that employs a Phase-Locked Loop (PLL) to generate switch timing signals from measurements of current in the resonant circuit. A major advantage of the control methodology is that operation is automatically restricted to be above the resonant frequency thereby ensuring inductive switching. Furthermore, the 'phase-locked' nature of the controller improves robustness by reducing the system's sensitivity to parameter variations and permits more of the converter's frequency characteristic to be utilised, offering the potential for higher power densities to be achieved.
Keywords:Resonant power conversion, Converter control, Soft-switching
Subjects:H Engineering > H610 Electronic Engineering
Divisions:College of Science > School of Engineering
ID Code:2405
Deposited By:INVALID USER
Deposited On:01 May 2010 19:52
Last Modified:18 Jul 2011 16:23

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