Analysis and Implementation of a Fixed-Frequency $LCLC$  Resonant Converter With Capacitive Output Filter

Shafiei, Navid; Pahlevaninezhad, Majid; Farzanehfard, Hosein; Motahari, Seyed Reza

doi:10.1109/tie.2011.2116758

Cited by 64 publications

(39 citation statements)

References 29 publications

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“…5. The first, LCLC [2], [3], uses the passive elements of the MF-Transformer. This has the advantage of minimizing the number of discrete elements.…”

Section: Design Of Resonant Tankmentioning

confidence: 99%

Design of a modular resonant converter for 25kV-8A DC power supply of RF cavities

Siemaszko

Pittet

Aguglia

et al. 2014

2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA)

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This paper describes the design of an Lee resonant tank that is to be used in a 300k W modular power converter for an application in particle accelerators. The aim of the power supply is to provide a so-called RF cavity with 25k V De and a current up to SA. Modular approach is chosen for redundancy and availability. Each module is composed of a resonant tank with a step-up Medium Frequency Tr ansformer with its secondary windings put is series. Full gain is ensured in the full operation frequency range considering component value inaccuracies and ageing of capacitors. The paper focusses on the design of the resonant tank and its implementation in a lOOkW power module prototy pe.

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“…5. The first, LCLC [2], [3], uses the passive elements of the MF-Transformer. This has the advantage of minimizing the number of discrete elements.…”

Section: Design Of Resonant Tankmentioning

confidence: 99%

Design of a modular resonant converter for 25kV-8A DC power supply of RF cavities

Siemaszko

Pittet

Aguglia

et al. 2014

2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA)

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“…Specif ication Ripple Vo =, Io =, fs =, Cp =, C f = Analytical Simulation Experimental P arallel LC [21] 20kV , 15mA, 95kHz, 47pF , 1.8nF 38V 42V < 50V Series − P arallel LCC [2] 53.4V, 92A, 120kHz, 120nF , 470uF 235mV 220mV < 300mV Series − P arallel LCLC [19] 26.3kV , 71mA, 100kHz, 9.5pF , 6.6nF 51V 54V N.A.…”

Section: Resonant T Opologymentioning

confidence: 99%

“…Consequently, analysis of parallel and seriesparallel resonant converters with pure capacitive output filters can result in new features and applications. [11][12][13][14][15][16][17][18][19]. In parallel and series-parallel resonant converters with a capacitive output filter, the existence of parallel capacitors with rectifier input port leads to Zero Current Switching of the diodes and eliminates the noise in the output voltage that is produced by the diodes reverse recovery current [3].…”

Section: Introductionmentioning

confidence: 99%

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Output rectifier analysis in parallel and series-parallel resonant converters with pure capacitive output filter

Shafiei

Ordonez

Eberle

2014

2014 IEEE Applied Power Electronics Conference and Exposition - APEC 2014

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This paper analyzes the behavior of a pure capacitive output filter in parallel and series-parallel resonant converters. Unlike traditional resonant voltageand current-driven rectifiers, pure capacitive output filters present interruptions in power transfer from the transformer primary to the secondary, owing to the existence of a parallel resonant capacitor. Therefore, existing formulas for different specifications of the output rectifier (e.g., output voltage ripple, efficiency, etc.) cannot be employed. This work provides detailed analysis of, and design equations for, pure capacitive output filters to cover the characteristic behavior of this rectifier. These valuable equations can be employed in the design of both low and high voltage power supplies for a variety of applications such as telecom power supplies and medical therapy instruments. Experimental results of a 10kVDC, 1.1kW power supply are presented to validate the analysis, along with other comparative experimental examples. With the rapid growth of low and high voltage applications, the equations will benefit researchers and R&D engineers in the area of resonant power conversion.

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“…Similarly, in [10], and [11], a secondary-side phase-shift-controlled LLC resonant converter was introduced, which supports adequate hold-up time for applications such as distributed power systems and server power supplies. Another use of the resonant converter in such applications was proposed in [12], which presents the steady-state analysis of a fixed-frequency phase-shift LCLC resonant converter with a capacitive output filter for high-voltage applications. In [1] and [3], some other DC-to-DC converter topologies, which are used for designing power supplies with high-voltage insulations, were discussed.…”

Section: Introductionmentioning

confidence: 99%

High-voltage isolated multioutput power supply for multilevel converters

Sepehr¹,

Saradarzadeh²,

Farhangi³

2017

Turk J Elec Eng & Comp Sci

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Abstract:Multilevel converters are one of the major choices for realizing high electric power conversion. The major feature of multilevel converter topologies is the need for a large number of switches, each of which requires a gate driver circuit and an isolated DC power supply. In this paper, a pragmatic concept of design and implementation of an isolated DC-to-DC converter for a high-voltage isolated application is introduced. More specifically, a multiple isolated output power supply based on the benefits of resonant converters is designed to prepare 36 double DC voltages for driving power semiconductor devices in a three-phase, seven-level cascaded H-bridge that acts as a static synchronous series compensator (SSSC). The power supply contains several high-frequency transformers in series, carrying a high-frequency single turn current as their primary winding excitations, and they are improved by a resonant tank circuit to reduce switching and core losses. The proposed design has a high voltage insulation level, low cost, small size, adequate hold-up time, and an easily upwards extending structure. The feasibility of the design is clarified by simulation results and implementation in a high-power D-SSSC converter.

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Analysis and Implementation of a Fixed-Frequency $LCLC$ Resonant Converter With Capacitive Output Filter

Cited by 64 publications

References 29 publications

Design of a modular resonant converter for 25kV-8A DC power supply of RF cavities

Design of a modular resonant converter for 25kV-8A DC power supply of RF cavities

Output rectifier analysis in parallel and series-parallel resonant converters with pure capacitive output filter

High-voltage isolated multioutput power supply for multilevel converters

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