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Content posted in November 2002
Power Factor Correction
Articles  
11/26/2002   Post a comment
One of the leading topics in line-operated power-converter design is to take power from the grid but not give any back. In other words, wall plugs should present to the ac source a resistive (and not a reactive) load. A power-factor corrector is the interface between the ac line and power converter that achieves this. Innovatia Laboratories' Dennis Feucht explains what power-factor correction is and why it matters.
Virtuoso AMS Designer Simulator
Articles  
11/14/2002   Post a comment
An easy-to-use mixed-signal simulation solution for the design and verification of the largest and most complex mixed-signal SoCs.
Efficient Testing of Analog/Mixed-Signal ICs using Verilog-A
Articles  
11/13/2002   Post a comment
Verilog-A can expedite the painfully slow transistor level simulations of large mixed-signal ICs. Nitin Mohan of Sirific Wireless demonstrates that by converting the Verilog HDL models to corresponding Verilog-A models, the system level abstraction becomes possible at no extra cost of digital simulator.
A Simplified Algorithm for State Space Circuit Analysis
Articles  
11/12/2002   2 comments
Robert R. Boyd provide a shortcut method to define the circuit state-space arrays, after which analysis can proceed directly to dc, ac, and transient responses with minimal effort. The method considerably reduces the amount of algebra required when compared to conventional state-space circuit analysis.
Input Filter Design for Switching Power Supplies
Articles  
11/8/2002   2 comments
New technologies and components are prime movers in the design of higher efficiency and smaller switching power supplies. However, to optimize these power sources for cost and volume, you need to correctly design the supply's input filter. National Semiconductor's Michele Sclocchi explains how to choose and design the optimal input filter for a switching-power-supply application.
The Tuneable Pipelined Frequency Transform—A New Filter-Bank Technique
Articles  
11/4/2002   Post a comment
For certain applications, the Tuneable Pipelined Frequency Transform (TPFT) provides advantages over more conventional methods of frequency splitting, such as complex down-converters or the Discrete Fourier Transform. RF Engines' CEO and CTO, John Lillington, describes the TPFT architecture and reviews the advantages of this technique over competing solutions.
Virtuoso Analog VoltageStorm Option
Articles  
11/1/2002   Post a comment
This IR drop and power rail electromigration option to the Virtuoso Analog Design Environment extends the VoltageStorm family of power integrity products to analog designs.




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