Category | July

Digital Power on its Move

Posted on 01 July 2006

       Interview on Digital Power with Ron Van Dell, CEO and President of Primarion By Bodo Arlt, Editor BPSD   Bodo Arlt: What end markets will drive digital power management? Ron Van Dell: The high-end servers and graphic cards are the main products that have started taking advantage of the benefits of digital power. We [...]

Decentralized Motor Drive Applications

Posted on 01 July 2006

      New Requirements regarding the Drive System are raised The increasing demand for decentralized motor drives in factory automation makes the new requirements for the implemented inverters, in general and for the power section, in particular, more and more evident. By Werner Obermaier, Tyco Electronics, Manager Product Marketing, Power Systems IC&P   The article [...]

Trench IGBTS Ensures Low VCE(sat)

Posted on 01 July 2006

       Low-loss sustain and energy recovery circuits for Plasma Display Panels The latest generation of IGBTs are helping to improve the performance and efficiency of flat panel displays. The plasma display panel (PDP) is the technology of choice for large video display applications, from high-end TV and home cinema to exhibition and public [...]

Cost-Effective Variable-Speed Motor Control

Posted on 01 July 2006

       Washing machines are a target market The turbulent and steadily increasing price of energy, combined with increasing government levies on resource usage, is sharpening homeowners’ focus on appliance energy efficiency. By Aengus Murray, International Rectifier   Migrating appliances such as washing machines from fixed-speed motor operation to more flexible variable-speed operation can [...]

Smaller is Better for Motor Control Designs

Posted on 01 July 2006

       In today's space-constrained environments, designers are looking for a solution for their application that is feature-rich in a small package without compromising performance. By Agustin Schuster, Silicon Laboratories Inc.   When selecting such a device, designers are faced with a wide variety of choices, from microprocessors to digital signal processors (DSPs) to [...]

Optimizing Synchronous Buck Regulators

Posted on 01 July 2006

       The challenges in DC/DC designs Adaptive gate drive circuits in MOSFET drivers ensure minimum dead time while preventing potential cross conduction currents. Both high and low-side transistors turn on creating a low impedance path from input voltage to ground. By Richard Chung, Member of Technical Staff, FAE, Fairchild Semiconductor   Designers continue [...]

Take the Easy Road to Simplified Techniques for Digitally Managed Power

Posted on 01 July 2006

      Built-in servo algorithm reduce the burden on system computing resources Ensuring high reliability in servers, telecom and network switching equipment or other high availability systems can involve centralized monitoring and control of power supplies. It becomes incumbent upon the power supply designer to learn the techniques of digital power management. By Todd [...]

From Old Cars to High-Speed Home Networks

Posted on 01 July 2006

       Entering a whole new era of electronic fantasy Fast and easy to implement solution using a rapidly maturing technology that simply uses the existing AC power wiring throughout the home. It is a broadband network offering direct access via the AC outlets everywhere in the home. By Mark E. Hazen, Senior Technical [...]

Ferrite Material for Energy-Meter Current Transformer -T36

Posted on 01 July 2006

       External Current Transformer (CT) driven Energy-meters have only alternating component as current input. Unlike whole current meters these are not subject to DC superposition test. By P. Mukherjee and S. Goswami, Epcos India   For current transformers used in these meters as sensing elements, the requirement of the core material is high [...]

Fiber-Optically Isolated Instrumentation

Posted on 01 July 2006

       Pulsed / Power System Diagnostics Advances in high sample rate/wide bandwidth analog-to-digital converters have enabled the development of increasingly sophisticated instrumentation suited for the highly stressing electro-magnetic environment associated with many pulsed power systems. By Frank E. Peterkin and Benjamin M. Grady, Naval Surface Warfare Center, Dahlgren Virginia   We report the development [...]