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 […]

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 […]

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 […]

Supercapacitor Degradation and Reliability

source: Brno University of Technology CEITEC, EPCI e-Symposium Abstract: Degradation of supercapacitor (SC) is analyzed by accelerated aging test. Evolution of SC parameters is determined before the aging test, and during up to 8 x 105 cycles of both 75% and 100% energy cycling. Capacitance fading, equivalent series resistance (ESR) increase, and leakage current trend […]

Assessment of Supercapacitor’s Quality by Means of Low Frequency Noise

source: Gdańsk University of Technology, EPCI e-Symposium Abstract: Low frequency noise is a well-known tool for quality and reliability assessment of electronic devices. This phenomenon is observed in different electrochemical devices as well (e.g., smart windows, electrochemical corrosion processes). Thus, we can assume that the same tool can be used to asses quality of supercapacitors. […]

A Simple Method for a Capacitor’s ESR Measurement

source: Power Electronics article Farzin Asadi, Nurettin Abut | Sep 07, 2017, Accurate modeling of power electronic converters, i.e., obtaining control to output transfer function, must include series resistance of capacitors and inductors. A simple method allows measurement of a capacitor’s Equivalent Series Resistance (ESR).

Tektronix Utilizes Custom Resistors from Ohmcraft in its Sensitive Test and Measurement Equipment

source: EIN presswire news ROCHESTER, NY, USA, August 9, 2017 /EINPresswire.com/ — In test labs around the world, scientists and researchers use sensitive measurement tools every day. Ohmcraft manufactures custom, ultra-high resistance resistors that ensure this equipment meets industry standards for accuracy and reliability. Tektronix, a leading worldwide provider of a wide array of test […]

Accurately measure ceramic capacitors by extending VNA range

source: EDN article Steve Sandler -June 27, 2017 Ceramic capacitors play an oversized role in circuit performance as a major contributor to voltage regulator control loop stability and power delivery network (PDN) impedance. When designing with these circuit staples, you need good impedance data over a wide frequency range. Proper measurement technique is the key […]