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Bodos Power Systems - who has written 773 posts on PowerGuru – Power Electronics Information Portal.


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Implementing Gate Drivers for 3-Level NPC-2 Power Modules with Reverse Blocking IGBTs

Posted on 27 October 2014

      Although 3 level converter topologies can lead to reduced total harmonic distortion and hence minimise the size and cost of filtering at the output stage, the best known configuration, NPC1 (Neutral Point Clamped), usually increases the number of switching devices (IGBTs and diodes) required, which adds to the complexity of the system. [...]

How Digital Isolation Technology Drives System-Level Efficiency

Posted on 23 October 2014

      Power supply efficiency continues to be an area of focus in the power electronics industry. Advances in power electronics components and topologies are driving individual power supply efficiencies to higher performance levels. The improvement in the efficiency of each power supply is an important – and essential – element in addressing the [...]

Optimized Core and Bobbin Allow for more than 25 Percent Increase in Power Handling

Posted on 15 October 2014

      DC/DC SMT transformer for PoE+, datacom, and industrial are the applications There are a wide variety of applications, including Power over Ethernet (PoE and PoE+), datacom/telecom and industrial, operating from a 12v, 24v or 48v input, that require an isolated switch mode power supply solution to convert the available input voltage to [...]

Thermal Efficiency of Chipscale Packaging for eGaN® FETs

Posted on 08 October 2014

      Semiconductor packaging has been saddled with four key complaints since the advent of the solid state transistor; (1) packages have too much resistance, (2) they have too much inductance, (3) they take up too much space, and (4) they have poor thermal properties that limit heat extraction. By David Reusch, Johan Strydom, [...]

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 [...]

Analysing Thermal Performance of Intelligent Power Modules for Better PCB Design

Posted on 02 October 2014

      Intelligent power modules are the designer’s choice for low-power motor-drive applications, particularly where cost and size constraints are tight. A new study of module thermal performance under various operating conditions helps designers to predict operating temperature, power and PCB design accurately for optimum reliability, cost and size. By Stefano Ruzza & Marco [...]

Practical, Efficient and Safe Power Device Thermal Characterisation

Posted on 17 September 2014

      By Hisao Kakitani, Koji Tokuno and Ryo Takeda; Keysight Technologies Japan Power devices are used in a wide range of applications such as; train, automotive, traction, power generation etc. that are operated in harsh and extreme environmental conditions. Robust design for reliability and safety are paramount in these applications. A key initial [...]

Going Mini

Posted on 15 September 2014

      Another step towards small power applications Vincotech goes mini with the next smaller housing size, taking another step towards small power applications where discrete components have figured so prominently in the past. Various topologies featuring diodes, IGBTs and MOSFETs may be implemented with the new housing to help miniaturize devices, minimize stray [...]

Semiconductor Advances for Lower-Cost EVs

Posted on 12 September 2014

      The world is getting ready to drive electric. Established car brands are adding new plug-in hybrids and full EVs to their ranges, and even supercar manufacturers are taking advantage of electric drive. Governments are also backing the move: a recent EU draft agreement proposes new national minimum targets for publicly accessible EV [...]

What to Watch for when Turning on a SMPS for the First Time

Posted on 10 September 2014

      In the near future, SMPS will completely displace conventional supplies, hence also engineers who are no specialists will have to cope with them. Turning on a new or unknown SMPS, especially offline - SMPS, can have unexpected and disastrous effects. This article describes some dangers, precautions and procedures for setting up and [...]