This paper presents the following for a full-bridge Class-DE resonant inverter operating at a fixed duty ratio: (a) steady-state analysis using first-harmonic approximation and (b) derivation of closed-form expressions for the currents, voltages, and powers. The conversion from a series-parallel resonant network to a series resonant network is presented. Imposing the zero-voltage and zero-derivative switching conditions, the expression for a shunt capacitance across the MOSFETs in the inverter bridge is derived. The closed-form expressions to calculate the values of the resonant components are presented. A practical design of a Class-DE resonant inverter supplied by a dc input voltage of 230 V, delivering an output power of 920 W, and operating at a switching frequency of 100 kHz is considered and its design methodology is included. Theoretical results are validated by Saber simulations.
Analysis and design of full-bridge Class-DE inverter at fixed duty cycle / Luca, Albertoni; Francesco, Grasso; Jacopo, Matteucci; Maria, C. Piccirilli; Alberto, Reatti; Agasthya, Ayachit; Marian, K. Kazimierczuk. - ELETTRONICO. - (2016), pp. 5609-5614. (Intervento presentato al convegno IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society tenutosi a Firenze nel 23-26 October 2016) [10.1109/IECON.2016.7793240].
Analysis and design of full-bridge Class-DE inverter at fixed duty cycle
GRASSO, FRANCESCO;PICCIRILLI, MARIA CRISTINA;REATTI, ALBERTO;
2016
Abstract
This paper presents the following for a full-bridge Class-DE resonant inverter operating at a fixed duty ratio: (a) steady-state analysis using first-harmonic approximation and (b) derivation of closed-form expressions for the currents, voltages, and powers. The conversion from a series-parallel resonant network to a series resonant network is presented. Imposing the zero-voltage and zero-derivative switching conditions, the expression for a shunt capacitance across the MOSFETs in the inverter bridge is derived. The closed-form expressions to calculate the values of the resonant components are presented. A practical design of a Class-DE resonant inverter supplied by a dc input voltage of 230 V, delivering an output power of 920 W, and operating at a switching frequency of 100 kHz is considered and its design methodology is included. Theoretical results are validated by Saber simulations.File | Dimensione | Formato | |
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