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In this paper, the analysis and design of the high frequency corona generator with LCC resonant topology applied in film treatment is proposed. The designed converter works with a specified output voltage, which makes the film treatment efficient and stable. By making the converter operate in a critical mode, the analysis and design is simplified and the resonant parameters can be described by time...
The purpose of this paper is to study the feasibility of a resonant high voltage generator using a high voltage planar transformers. The emphasis is on improving the power density, efficiency, reliability, and repeatability of component characteristics of the planar high voltage transformer by a novel planar winding design. Converter and transformer design issues are discussed and a prototype is evaluated...
We present a novel, wafer-level fabrication method of 3D solenoidal microtransformers using an automatic wire bonder. Automatic wire bonders allow to precisely shape 25 μm diameter wire around prefabricated yokes or magnetic cores within seconds. Former reports of wire bonded microcoils treated individual solenoids showing low mutual inductances, whereas in this study transformers with strongly coupled...
In this paper, Implementation of an integrated 2–in–1 transformer applicable to power supply units (PSUs) for a 120W LED TV is presented. The transformer is comprised a PFC inductor and an LLC resonant transformer, each of which is placed and integrated on an E-I-E type magnetic core. Integrated transformers with two different air gap topologies (i.e., the side gap and center gap topologies) are considered...
A single-phase Dual Active Half Bridge (DAHB) DC-DC converter topology is evaluated for medium voltage (MV) application. A 15kV SiC-IGBT based three-level half-bridge is connected to the high voltage (HV) primary side of a high frequency (HF) transformer operating at 10kHz link-frequency. A 1200V SiC-MOSFET based two-level H-bridge is connected on the low voltage (LV) secondary side. This topology...
A compact, isolated, current-source based bidirectional solid state transformer (SST) with configurability for supporting low- or medium-voltage DC and AC application is discussed in this paper. More specifically, design considerations and practical implementation techniques for realizing a 50 kVA 3-phase to 3-phase SST are presented. Results from experimental measurements are shown and discussed.
High voltage high frequency (HF) transformer provides the isolation between high and low dc link voltages in dual active bridge (DAB) converters. Such DAB converters are finding wide applications as an intermediate DC-DC converter in transformerless intelligent power substation (TIPS), which is proposed as an alternative for conventional distributiontransformer connecting 13.8 kV and 480 V grids....
This paper presents an optimization technique for a flyback converter with a bidirectional energy transfer. The main goal is to optimize the converter for driving an incremental dielectric electro active polymer actuator, which must be charged and discharged from 0 V to 2500 V DC, supplied from a 24 V battery. The proposed optimization routine sweeps through a database of low voltage switching devices,...
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