Intusoft Announces New Product For Advanced Power Supply Design

    San Pedro, CA, May 21, 1999 -- Intusoft today announced Power Supply Designer, the third application-specific design and analysis software product in the Intusoft family of EDA products. Designed specifically for power supply designers, Power Supply Designer not only meets the needs of power electronics designers for accurate, high-performance simulations, but also includes a selected model portfolio specific to their industry requirements. Power Supply Designer integrates Intusoft’s schematic technology for design creation and graphical waveform analysis with the proven IsSpice4 analog and mixed-signal simulator and the powerful Magnetics Designer transformer and inductor synthesis tool.

Power Supply Designer includes the latest Power Designer Library, which incorporates many hyperaccurate cycle-by-cycle PWM and transformer simulation models for power electronic designs. The PSD Library also includes accurate power semiconductor models and "averaged" models for leading power converter design topologies. These models enable designers to simulate 100x faster in the early design process phase, when evaluating alternative design topologies and compensation. The Magnetics Designer component of the package enable designers to model and analyze virtually any layer or sector wound transformer design.

IsSpice4, the mixed-signal simulator at the core of Power Supply Designer is already widely accepted as a superior tool for its ability to simulate power designs at various levels of detail. “With an installed base of over 21,000, engineers have been using the powerful IsSpice4 successfully for many years to design new power supply topologies and control methods," said Charles Hymowitz, Vice President of Product Development at Intusoft.

Power Supply Designer is the only complete switching power supply design solution that provides component design, large-signal simulation, feedback control design, and small signal analysis in one easy-to-use package. It includes full featured graphical entry, magnetic synthesis, circuit analysis, and simulation modules. You can perform high-speed cycle-by-cycle simulation to show true large-signal performance, simulate current-mode control using the latest accurate modeling techniques, run CCM and DCM converter simulations, analyze control systems including loop gain, input filter design and analysis, and measure power stage loss and stress analysis for all major components. In summary you can simulate your entire power system.

What's Included in Power Supply Designer
Power Supply Designer features ICAP/4Windows, Magnetics Designer, and the popular Power Supply Designer’s SPICE model library. The IsSpice4 Mixed-Signal Simulator provides analysis of the complete behavior of analog and mixed-signal systems, including electrical, mechanical, hydraulic and other technology subsystems, and their interactions. It includes DC, AC, transient, noise, distortion, Fourier, Monte Carlo, pole-zero and sensitivity analyses. It also features advanced analyses not commonly found in other SPICE programs such as failure, RSS, EVA, Transient worst case, and stress alarms monitoring. SpiceNet provides a design creation and editing environment that can handle complex electrical designs as well as mixed-technology designs. SpiceNet is also a design debug environment. Once a design has been simulated, waveforms representing the results are automatically available for display DIRECTLY on the schematic. IntuScope is a graphical waveform analyzer that gives you unparalleled flexibility to view and analyze simulation waveforms. Numerous charts, histograms and probability plots are available along with a comprehensive set of over 50 measurements, including duty cycle, gain margin, and other vital power design measurements.

The Power Supply Designer’s Library includes a library of over 13,000 models chosen specifically for power designers. This library of power-related devices includes PWM ICs, IGBTs, power MOSFETs and transformers. It allows you to evaluate how different types of components will perform before you select a specific part. Also, many higher-level templates, such as Laplace transforms and mathematical building blocks help you perform stability analysis or construct new models.

The Power Design Challenge
Virtually all electronic designs require power electronics circuitry. The demand for higher reliability circuitry efficiency coupled with compact size have tightened requirements on new designs. Meanwhile, new regulations such as those for power quality and EMI continue to impact designs intended for global markets. And an ever-increasing number of power components to choose from makes simply keeping pace a job in itself.

Once you have your completed power design, you must be prepared to modify the design quickly to meet any changes in requirements. To meet these challenges, many power designers use simulation to validate specific portions of their designs. This approach works well, however, a better approach lets you simulate complete designs before building breadboards to reduce design time, cost, and increase your insight into key design issues.

Power electronics designs place severe demands on simulation software. Complex designs can drive simulation times to unacceptable levels or lead to convergence problems, leaving you debugging software rather than your design.

The New Power Solution
To help you meet the complexities of power design and simulation, Intusoft developed Power Supply Designer. This powerful software lets you quickly create a power design and reliably evaluate its performance through simulation. At the core of Power Supply Designer is the IsSpice4 mixed-signal simulator technology, widely recognized for its ability to simulate complex power designs with multiple feedback loops, nonlinear magnetics and switching circuitry.

Power Supply Designer helps you reduce the number of prototypes, which saves you time and reduces costs and hazards inherent in breadboards.

High Accuracy Models for Key Power Components
In power converter design, all models are not created equal. If the model you’re using doesn’t exhibit the behaviors that can cause problems in a power design, it won’t meet your needs. Power Supply Designer gives you access to highly accurate models developed by the Magnetics Designer module.

Intusoft has spent years developing accurate and robust models for the components that are used in power designs. The XSPICE mixed-signal hardware description language in IsSpice4 allows true behavioral modeling, not just the macromodeling used in Spice-based simulators.

Using the special Design Validation feature and its Stress Alarms, you can evaluate operating stress on circuit components using any user-defined test criteria. You can easily specify component tolerances and perform Monte Carlo analysis as well as many other statistical measurements. This gives you crucial information about the yield your design will achieve in production.

Top-Down Design
One of the hallmarks of power converter designs is long simulation run times. Early in the design process when designing compensation circuitry, for example designers often wish to analyze the complete design quickly at a high level. With other simulators, designers can only simulate at a detailed level, making iterative design more time-consuming. To enable top-down design, Intusoft has a set of "averaged models" that embed the PWM, transformer and other circuitry into a linearized form with duty cycle as the "input" to the model. These averaged models are particularly useful for power designers.

Power Supply Designer is Windows 9x or NT-compatible. One year of product maintenance is included in the purchase price.

Established in 1985, Intusoft designs develops and markets award-winning software applications and tools for analog and mixed-signal circuit design, analysis and test automation to electronics industries worldwide.



Power Supply Designer



For Further Information Contact:

P.O Box 710
San Pedro, CA
Tel: 310-833-0710
FAX: 310-833-9658