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IGBT Snubber Capacitors Selection Guide

By Deki Electronics Posted On 23.4.2019

Source: Deki application note and article

Important developments of IGBT’s (Insulated Gate Bipolar Transistors) over the years have been focused on increasing power handling capability and increasing reliability. Snubber capacitors have also undergone changes in construction enabling increased power handling capability. This ‘charge’ focuses on giving the reader a brief overview on the IGBT Snubber capacitor. (more…)

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Film Capacitors Characteristics and Uses in Power Applications

By EDN Posted On 18.4.2019

Source: EDN article

by Rudy Ramos.

Engineers designing power electronics find that capacitors are needed for several functions, from energy storage to filters and decoupling. Different capacitor types are available, that at first sight might seem equivalent in their headline ratings of capacitance and voltage, but would not perform equally. Incorrect selection can lead to, at best, an expensive ‘over-engineered’ solution and, at worst, an unreliable or unsafe product. (more…)

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Kemet Lab Video: Understanding Ripple Voltage Based on Different Types of Capacitors

By Kemet Posted On 18.4.2019

Source: Kemet video

Kemet Application Intelligence Center KAIC lab released a video that demonstrates how four different capacitor types affect the ripple voltage on a boost or buck regulator. (more…)

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Niobium and Niobium Oxide Capacitors Overview

By EPCI Posted On 16.4.2019

Source: EPCI original article

By Tomas Zednicek Ph.D. European Passive Components Institute.

This article summarizes history, main features and potentials of niobium and niobium based capacitors. (more…)

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Negative capacitor enable higher voltage, high efficient system while operating at lower voltage

By Science Daily Posted On 9.4.2019

source: Science Daily news

by DOE/Argonne National Laboratory, original written by Jared Sagoff. Researchers have created a permanent static ‘negative capacitor,’ a device believed to have been in violation of physical laws until about a decade ago. Newly devised static negative capacitor could improve computing and yield more energy-efficient computers. (more…)

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Dual-Mode Chokes Expand Inverters Capabilities

By Power Electronics Posted On 2.4.2019

Source: Power Electronics article

by: Michael Freitag, director of magnetics product management at KEMET Corp.

Innovative hybrid filters built with the latest magnetic materials enable lightweight, miniaturized inverters to satisfy the latest green-energy and mobility applications. (more…)

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Inductors with Core Feature Multiple Resonances

By InCompliance Posted On 29.3.2019

Source: InCompliance article

by Arturo Mediano. Resonances in components are a well-known topic for electronic designers when working in high frequencies (e.g. EMI/EMC). Do not forget to test your components with an impedance analyzer, especially if they are custom magnetic components. (more…)

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TDK technical note How to Use Power Inductors

By TDK Posted On 28.3.2019

source: TDK technical note

TDK has released its technical note on How to Use Power Inductors. (more…)

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All Applications / Capacitors / Circuit Design / DC/DC Converters / e-PassiveBlog / editors choice / Inductors / Power Conversion / Resistors

RC Snubber Design for SMPS Protection Part II

By In Compliance Mag Posted On 1.3.2019

Source: In Compliance Mag article

by Bogdan Adamczyk and Bill Spence

Part II: Design Process and Verification

This part II of the RC Snubber topic discusses the systematic and efficient design process and design verification through simulations and laboratory measurements (see [1] for Part I – fundamentals of inductive switching and RC snubber impact). (more…)

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High Voltage MLCCs Arc-Over Prevention

By Electronic Products Posted On 1.3.2019

Source: Electronic Products article

By Reggie Philips, senior product manager, KEMET. Innovative arc-over prevention enables compact, high-voltage surface-mount MLCCs to deliver a cost-effective and space-saving solution for emerging applications in EVs or renewable-energy generation. (more…)

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