Improved Photoelectrothermal Model with Thermal Parameters Variation Applied to an Extra-High Current COB LED

This paper deals with a circuit modeling approach based on a normalization procedure in order to represent the system considering resonant parameters instead of real circuit parameters. The main advantages are the attainment of generalized solutions that do not depend on specifications, which allows the design of the converter without resorting to circuit level simulations. In this work, the fundamentals and the mathematical formulation of the normalized analysis are described. Furthermore, a multi-stage Class D-E DC-DC resonant converter is analyzed without simplifying assumptions used in other methodologies, such as, high loaded quality factor and fundamental component approximation. Experimental results are shown to verify the theoretical approach.

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Steady-State Analysis and Design Methodology for Class-E2 Resonant DC/DC Converters Based on a Normalized State-Space Model

Mendonca¹,

Cipriani²,

Naidon³

et al. 2020

Eletrônica de Potência

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This paper presents a steady-state analysis and design methodology for the Class-E 2 resonant DC/DC converter. The converter is represented in a normalized state-space model that is independent of specifications and real system components, like as inductors, capacitors and resistors. Analytical waveforms are obtained and can be used to design the converter. The main contribution of the paper is the development of an analysis methodology that does not separate the inverter and rectifier stages and ensures the soft-switching on both switch and diode. A step-by-step design procedure is presented, in which the real system components can be obtained based on design abacus. A comparison among theoretical, simulation and experimental results are performed based on a design example.

show abstract

Improved Photoelectrothermal Model with Thermal Parameters Variation Applied to an Extra-High Current COB LED

Cited by 3 publications

References 12 publications

Active Cooling and Thermal Simulation Applied to an Extra-High Current COB LED

Active Cooling and Thermal Simulation Applied to an Extra-High Current COB LED

Resonance-Based Normalization Theory for Analysis and Design of Resonant Power Converters

Steady-State Analysis and Design Methodology for Class-E2 Resonant DC/DC Converters Based on a Normalized State-Space Model

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