Normalized Analysis and Design of LCC Resonant Converters

Abstract

Abstract-A normalization of the LCC voltage-output resonant converter performance characteristics, in terms of the tank gain at resonance and the parallel-to-series-capacitor ratio, is presented. The resulting description is subsequently used for the derivation of a design procedure that incorporates the effects of diode losses and the finite charge/discharge time of the parallel capacitor. Unlike previously reported techniques, the resulting normalized behavior of the converter is used to identify design regions to facilitate a reduction in component electrical stresses, and the use of harmonics to transfer real power. Consideration of the use of preferred component values is also given. The underlying methodology is ultimately suitable for incorporation into a software suite for use as part of a rapid interactive design tool. Both simulation results and experimental measurements from a prototype converter are included to demonstrate the attributes of the proposed analysis and design methodologies.

Analysis and Control of Dual-Output $LCLC$Resonant Converters With SignificantLeakage Inductance

“…Hence, it is usual to choose a low value for during the design phase. However, such a choice means the input-output voltage characteristic exhibits a reduced resonant peak, and consequently, the voltage boosting capability of the for for for for (16) converter is limited [2], [9]- [13]. Furthermore, the input-output voltage conversion ratio at the effective resonant frequency of the tank, is consequently lower.…”

Optimal Design of DCM <italic>LCC</italic> Resonant Converter With Inductive Filter Based on Mode Boundary Map

“…In order to overcome the disadvantages of SRC and PRC, various other resonant converters with more than two resonant components have been proposed [9], [10]. Among them, LLC resonant converter [11], [12] and LCC resonant converter [13]- [24] are the most popular converters.…”

“…For the LLC resonant converter, the output filter should be the capacitive one. For the LCC resonant converter, both the capacitive filter [13]- [19] and inductive filter [20]- [24] can be adopted. In high-power, low-voltage, high-current power supplies, the inductive filter is attractive since the current ripple in the output filter capacitor is relatively smaller compared to that in the capacitive filter.…”

“…The design of LCC resonant converter has been extensively discussed [13]- [24], and the DCM LCC resonant converter with inductive filter has been focused on in [23] and [24]. The DCM LCC resonant converter with inductive filter can operate in various operating modes, and the operating mode might change with the variations of input voltage and load, which challenges the design of the converter parameters.…”

Model predictive control for the quantum series-parallel LCC-type resonant converter with capacitive output filter

“…For high output voltage applications like x-ray, electron beam welding machines or electrostatic precipitators the series-parallel LCC-type resonant converter is the best choice. It includes the high parasitic capacitance of the secondary winding and the large leakage inductance of the high voltage transformer as elements of the resonant circuit [1], [2].…”