A 20-Cent PoE Interface for VoIP Telephony
Meet the requirements of IEEE 802.3af PoE enabled hubs, routers and switches are becoming standard equipment. Consequently, many OEMs are designing their wireless access points, VoIP telephones...
View ArticleVoid Free Soldering with Vacuum
From laboratory level to mass production Vacuum application in the soldering process reduces the void rate in the soldered joints considerably, typically to below 1%. By Klaus Roemer, Sales...
View ArticleTailor-made Lithium Polymer Batteries
Flexible in Shape and Size The growing use of mobile electronic devices is generating an ever-increasing demand for high performance primary (disposable) and secondary (rechargeable) batteries....
View ArticleSwitched Reluctance Drives in Weak Supply Nets
Electronic Stabilization Methods As a low rate of torque ripple usually is one of the major design targets of switched reluctance drives it is necessary to have more than one torque productive...
View ArticleHigh Performance PFC Inductor
Core with low losses to minimize temperature rise Devices like PFCs are boost circuits that bring current in phase with voltage, to create acceptable power factor front ends for power supplies....
View ArticleChanging the Output Voltage of a Switching Regulator on the Fly
There are many different ways to change the output voltage Applications that require the output voltage of a power supply to change dynamically come from a wide variety of areas. Examples are...
View ArticleEffective Load Resistance
A New Method to Evaluate DC/DC converter Efficiency This article offers an alternative to efficiency measurements as an evaluation tool of power supplies. The proposed method works well with...
View ArticleAutomotive Lighting Solutions
The inrush current creates a thermal stress on the driver Despite the development of new lighting technologies such as the Xenon lamp (HID) or LED lights, the incandescent bulb will remain the...
View ArticleModular IGBT Stacks to Increase Power Density
Integrating the New PrimePACK The integration of the new PrimePACK module into an existing inverter platform is discussed. The mechanical features of the module allow an optimization of the...
View ArticleOne for All - Plug & Play Drivers for High-Power IGBTs
High-performance gate driver for IGBT modules from 1200V to 3300V. Growing power-system complexity calls for the utilization of ready-to-use building blocks. This approach is particularly suited...
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