Flyback Transformer Modelling

source: Kocaeli university Kocaeli Turkey, EPCI e-Symposium Abstract: Providing the required load power using Switch Mode Power Supplies (SMPS), leads to smaller and more efficient converters. Flyback converter is one of the most famous topologies in use. Flyback converter is equivalent to buck-boost converter with the inductor split to form a transformer. The operating principle […]

Thick Film Power Resistor with Thick Printed Copper Terminals

source: FEE RICE University of West Bohemia Pilsen, Elceram a.s., EPCI e-Symposium Abstract: This paper is focused on the thick film power resistors with copper terminals. These terminals are manufactured by the new Thick Printed Copper (TPC) technology. This technology is based on sequential screen printing and firing of copper paste in nitrogen atmosphere on alumina […]

Temperature Dependence of Leakage Current Degradation of Tantalum Capacitors at High Electric Field

source: Brno University of Technology CEITEC, AVX Czech Republic s.r.o., EPCI e-Symposium Abstract: Tantalum capacitors have been the preferred capacitor technology in long lifetime electronic devices thanks to the stability of its electric parameters and high reliability. However, long time application of elevated temperature and high electric field can result in capacitor leakage current increase […]

Kinetics of Moisture Sorption and Reverse Bias Degradation in Chip Tantalum Capacitors

source: ASRC Federal Space and Defense (NASA), EPCI e-Symposium Abstract: Exposure of chip MnO2 tantalum capacitors to humid environments might result in increased ESR, leakage currents, and first turn-on failures.  However, there is a lack of literature data on the effect of moisture on reverse bias behavior of the parts. The presence of moisture can […]

Energy Harvesting is not Fiction Anymore

source: Würth Elektronik eiSos GmbH, EPCI e-Symposium Abstract: Our environment is changing and everything is becoming “electronified”. Our glasses, our hand gloves, shirts, shoes etc., can be connected already today with our smartphones and can send commands to the machinery surrounding us. We want this comfort, and we are all looking forward to having Smart […]

Capacitors and Resistors with Extended Operating Temperature Range for GaN Applications– Development and Space Evaluation

source: Alter Technology, ESA ESTEC, EPCI e-Symposium Abstract: During the last decade, a growing number of applications demanding higher power electrical consumption have emerged in some industrial sectors such as in the military, automotive or space ones. Consequently, electrical components with higher temperature range and rating voltage operation are needed. In addition, the good thermal […]

Carbon Nanotubes Ammonia Sensor Printed by Aerosol Jet System

source: RICE, FEE, University of West Bohemia in Pilsen, EPCI e-Symposium Abstract: This article deals with ammonia gas sensor based on carbon nanotubes. Active layer is deposited on a flexible substrate by new deposition technique called Aerosol Jet. The deposition technique remove deficiency of today’s common used deposition technique, where it is very difficult to […]

Embroidered textile antennas based on hybrid sewing thread

source: RICE, FEE, University of West Bohemia in Pilsen, EPCI e-Symposium Abstract: This paper presents a research focused on textile antennas which are made embroidered from a novel hybrid conductive sewing thread. Thanks to embroidery, which has been recognized as one of the most promising manufacturing techniques for integrating antennas into clothing, the antennas are […]

Printed and Embroidered Electronic Passive Components

source: RICE, FEE, University of West Bohemia in Pilsen, EPCI e-Symposium Abstract: Wearable electronics and smart textiles is rapidly developing area currently. An integration of electronic components and systems directly on/into textile substrates leads to the development of promising new technologies among which it is possible to include printing of passive electronic components and/or embroidering […]

Heraeus Next Generation of Polymer Capacitors: Boosting Performance of Electrolytic Capacitors with Conductive Polymer Dispersions

source: Heraeus, EPCI e-Symposium Abstract: The major use of polymer aluminum and tantalum capacitors is for low voltage consumer electronics. The development of conductive polymer dispersions has extended the voltage range of polymer capacitors up to 125 V in the last years and opened the door for high reliability applications like automotive. We present the […]