Category | Protection

Inrush Current Limiters (ICL)

Posted on 02 July 2019

      Inrush Current Limiters (ICL) PTC and NTC thermistors limit turn-on currents Inrush Current Limiters based upon PTC and NTC technology assist in limiting turn-on currents in capacitive and inductive loads so that line fuses do not operate. By David Connett, Director IC Reference Design EPCOS AG, A Group Company of TDK-EPC Corporation [...]

Circuit Protection Solutions Address Emerging Market Trends

Posted on 02 July 2019

      RTP device helps meet the reliability requirements of automotive power electronics systems Electronic components manufacturers are perpetually challenged to keep pace with the evolution of the industry. In particular, the growth and density of electronic content in automotive, industrial, consumer electronics and telecommunications applications has been dizzying. By Faraz Hasan, Global Strategic [...]

New Symmetric Voltage Suppressor with Peak Pulse Power and Increased Power Capacity

Posted on 29 June 2019

      By Alexey Surma, Yury Loktaev, Alexander Stavtsev and Anatoly Chernikov, Proton-Electrotex JSC   Typical element of symmetric avalanche voltage suppressor of “conventional” structure is shown in figure 1. The basis for such devices is high voltage “symmetric” p-n-p transistor with lightly doped n-base and two identical smooth p-n junctions. High blocking voltages [...]

PPTC Arc-Suppressed Connectors for HVdc Equipment

Posted on 29 June 2019

      Networking industries were among the first to implement hot-swap technology The emergence and growth of new high-voltage DC (HVdc) applications – such as electric and hybrid vehicles, photovoltaic systems, and high-density IT server farms and telecom centers – is driving the demand for new connector solutions. By Robert Cid, Engineering Manager, TE [...]

Providing Intelligent Protection

Posted on 29 June 2019

      Galvanically Isolated 8-Channel High-Side Switches and Digital Input ICs The ISOFACE™ product family intelligently solves a challenge common to most industrial automation systems, e.g. Programmable Logic Controllers (PLCs), Drives, Industrial PCs, Robotic Systems, Distributed Control Systems, Building Control Systems, General Control Equipment and Sensor Input Modules. By Hubert Baierl, Business Manager, Industrial, [...]

Solar Installations Control & Protection

Posted on 29 June 2019

      Advanced transducer technology provides Safety and efficiency of generating capacity High oil and gas prices, climatic protocols, and commitments from different national governments to decrease their CO2 emissions are among the factors driving the increase in sustainable energy generation installations, including solar energy. To support these commitments, governments have introduced incentives such [...]

Photovoltaic Market: Over-current protection

Posted on 29 June 2019

      Protecting electrical systems and improving electrical performance and reliability in energy Energy rise future challenges include continuously increasing needs due to the depletion of fossil fuel reserves and urgent climate concerns. One answer is the photovoltaic market, growing around the world as renewable energy is in general. By Franck Ageron, Product Manager [...]

Overvoltage Protection in Photovoltaic Systems

Posted on 29 June 2019

      The overload protection, simply disconnects above the declared rated value Surge Protective Devices (SPDs) are non-linear resistive elements connected between an active (live) conductor and the neutral or ground connection of the network By Igor Juricev and Iskra Zascite, d.o.o.   The primary function of an SPD is to limit a voltage transient [...]

NTC Thermistors as Lifesavers for Power Semiconductors

Posted on 29 June 2019

      Integrated temperature protection NTC thermistors with a wafer-based manufacturing process can be integrated very simply in power semiconductors. This allows a reliable temperature monitoring function to be implemented that protects electronic systems from expensive failures or destruction. By David Connett, Director IC Reference Design, EPCOS Conventional ceramic-based NTC (negative temperature coefficient) thermistors [...]

Advances in ASICs for Open Loop Hall-Effect Based Current Transducers

Posted on 29 June 2019

      The on-chip thermometer and digital to analogue converters generate analogue corrections Optimisation of cost and reduction of size are driving the need to integrate the components in current transducers using Application Specific Integrated Circuits (ASICs). The target of cost optimisation means that standard commodity silicon processes with no special manufacturing steps must [...]