Category | Capacitors

DC-Link Capacitor Technology Comparison

Posted on 20 May 2015

      Aluminum Electrolytic vs. Film Capacitors By Dr. Arne Albertsen, Jianghai Europe Electronic Components GmbH Introduction The progress in semiconductor design sets the trend in current and future devices of power electronics: it manifests itself particularly in smaller dimensions, as well as in higher voltages and switching frequencies. Referring to intermediate circuit capacitors, [...]

Integration and Miniaturization Trends

Posted on 19 March 2015

      Passive embedding for performance and reliability Thanks to new materials and integration technologies the embedding and integration of passive components is making great advances. New miniaturized components designed specifically for embedding enable even more compact and reliable systems. By Dave Connet, Director IC Reference Design, TDK The dimensions of passive components and [...]

Voltage Proof on the Highest Level

Posted on 06 October 2014

      200 V Conductive Polymer Aluminum Electrolytic Capacitors The achievements of the semiconductor industry set trends in current and future electronic devices: they are characterized by lower power consumption, lower operating voltages in the control circuits, miniaturization, and higher clock frequencies. However, these trends do also require capacitors in the power supply that [...]

Reliable When it’s Hot and Humid

Posted on 26 May 2014

      Power utilities around the world are rolling out smart meters in order to enable automated meter reading and optimized energy management. The X2 capacitors from the EPCOS B3293* heavy duty series of film capacitors are well suited for these meters because they operate reliably over a long service life under extreme environmental [...]

Super Capacitors, the Unknown Capacity Giants

Posted on 03 April 2014

      The unit of capacitance farad (F) has been known only in combination with the prefixes micro, nano, and pico for a long time. Nowadays, however, kilofarads have become possible. How do these new super capacitors work, which base on a principle that was discovered 160 years ago? By Wolf-Dieter Roth, HY-LINE Power [...]

Miniaturisation of High Voltage, High Capacitance Multilayer Ceramic Capacitors

Posted on 06 November 2013

      There is a constant battle to reduce size and weight of electronic components. Moore’s law supposes that for computing hardware the number of transistors on an integrated circuit doubles every 2 years. Assuming that available space for these components does not increase - in fact it is generally desirable that this space [...]

Metallized Film Capacitors

Posted on 06 November 2013

      Considerations for selecting the most suitable types The expected life cycles of electronic products are continuously increasing, so that today life cycles of up to 10, 15 or 20 years are expected. Of course, each electronic component used in such a product should have at least the same lifetime-expectancy. By Dieter Burger, [...]

Combined Capacitor and Choke for Motor-Run Applications

Posted on 05 November 2013

      Economic and efficient control of bidirectional motors A design for the control of bidirectional AC motors features the EPCOS LCap, a combined motor-run capacitor and choke in a single rugged package. Thanks to LCap’s narrow tolerances over time, compact size and reduced assembly complexity, it is designed for use in economical and [...]

Construction and Agricultural Machinery as Hybrids

Posted on 02 September 2013

      Although construction, agricultural and forest machinery is still dominated by Diesel and hydraulic drives hybridization fairly suggests itself. If the frequently occurring load peaks are buffered electronically cost, consumption as well as the emission of exhaust and noise are reduced considerably. By Tomi Ristimäki, Marketing, VISDEDO and Kurt Bertleff, Marketing, WIMA Diesel [...]

What's So Super About Nickel Supercapacitors?

Posted on 02 September 2013

      The growing emphasis on environment-friendliness, energy-saving and general operational efficiency means there is a greater role in the transport industry for energy storage systems of all kinds. One relatively new form of energy storage – the nickel carbon supercapacitor – is finding favour in a wide variety of applications, especially where high [...]