Category | Protection

Protection Components for LED Lighting Systems

Posted on 19 November 2014

      All-round ESD and heat protection LED lighting systems require high-performance ESD and overtemperature protection if they are to live up to their potential in terms of lifetime, low maintenance costs and overall reliability. EPCOS protection components provide effective and cost-efficient protection for the LED arrays, their power supplies and control circuits. By [...]

Design, Simulation and Protection

Posted on 25 February 2014

      Integrated architecture approach combining power semiconductor components efficient A constantly growing global population coupled with higher and higher demand for power has led to corresponding growth in needs for power electronics equipment, especially converters and energy storage systems. Those needs are also expressed in key requirements, chief among them better energy efficiency [...]

PTC Thermistors for Inrush Current Limiting

Posted on 03 February 2014

      Always on the safe side At high temperatures and currents PTC thermistors offer reliable protection as inrush current limiters (ICLs) in power supplies - even in case of short circuits. NTC thermistors are not always the solution of choice as inrush current limiters (ICLs) in power supplies. In certain cases with especially [...]

Line Filter - The Last Barrier in the Switch Mode Power Supply

Posted on 06 November 2013

      Switch mode power supplies result in conducted interference because they generate radio interference voltage on the mains side. This can interfere with other equipment supplied with mains power. Line filters help to suppress the generated radio interference voltage. These can easily be designed from passive components such as current-compensated line chokes and [...]

Temporary Overvoltage immunity by Surge Protection Devices

Posted on 02 May 2013

      Effect of temporary overvoltage (TOVs) on surge protective devices (SPDs) If the SPD has been selected with a maximum continuous operating voltage Uc, lower than the overvoltage generated by the low voltage (LV) insulation failures or the loss of a supply conductor, the current flowing through the SPD increases very quickly and [...]

Fast Acting Fuse for Semiconductor Protection

Posted on 02 August 2012

      Protect IGBT, IEGT, IGCT for drives as well as large diode and thyristor With the birth of semiconductor in the 50´s and their use in power converters the need of protection with fuse came along. Fuses for the protection of semiconductor, known as semiconductor fuse, have grown in demand and performances. Applied [...]

Coordinated Circuit Protection for High-Speed USB Applications

Posted on 17 July 2012

      USB 3.0 applications need circuit protection on the jack USB (Universal Serial Bus) has become the most popular and pervasive connectivity technology for portable electronics. As the adoption of this standard has grown, USB connected devices have begun to cover a broader range of hardware applications. The evolution of USB protocols such [...]

Varistors Satisfy the Extended UL 1449 Standard

Posted on 17 July 2012

      The current used for the test is six times greater in the 3rd Edition than in the 2nd Edition In recent years, the European electrical and electronics industry has reworked the safety standards for surge protective devices (SPDs) several times – in some cases with significant changes: thus the first edition of [...]

Fast Grounding Keeps Aircraft Flying

Posted on 05 July 2012

      MOV planar arrays can help protect sensitive avionics systems from lightning strikes and other transient events Modern military aircraft are increasingly reliant on electronics for a wide range of avionics, communications, navigation, life support, weapons system and other mission control functions. By Matt Ellis, Senior Engineer, Syfer Technology   This equipment must [...]

Enhanced Over-Voltage Protection of Solar Installations

Posted on 03 July 2012

      Through-out its voltage / current characteristic, the Varistor is actually conducting Varistors offer a cost effective solution for the protection over Solar Invertors against over-voltages. Thermally Protected Varistors from TDK-EPC can help to reduce down times and to optimize returns on investment. By David Connett, Director IC Reference Design, EPCOS AG. A [...]