Power Supply Designer

Intusoft has introduced a SPICE model library for power supply designers. It is the first SPICE library to contain a comprehensive set of switching level models for Pulse Width Modulation (PWM) ICs. The library represents a major breakthrough for SMPS designers. Previous models were based almost exclusively on state space average models which don't show many important nonlinear effects. The library does include a unique unified state space PWM model which works for AC, DC, and transient analyses in continuous and discontinuous modes. However, the switching level models give designers a capability they have never had before; the ability to plug in a model, representative of the actual IC, and simulate the transient switching performance accurately and realistically. Included are voltage and current-mode PWM IC models for parts from Unitrode (UC184x series, UC152x series and UC182x series), Linear Technology (LT124x series), Siliconix (Si9145), and Cherry Semiconductor (CS322/324). Some models are created with multiple levels of complexity. This allows the engineer to select the appropriate model features of interest and thus control the simulation efficiency. The models utilize analog behavioral elements, special Boolean logic elements unique to Intusoft's IsSpice, and new HDL elements. Together they greatly reduce the model's simulation runtime, an important factor in SMPS analysis. The library also includes SPIC(tm) models for nonlinear magnetic cores (Magnetics MPP series and various European cores), transformers, Power MOS drivers, motor controller ICs (UC1637), and power factor correction ICs (UC1854).

Power Supply Designer includes:

• ICAP/4Windows Power Deluxe, using IsSpice4 simulation technology
  ICAP/4Windows Power Deluxe is the industry's best SPICE simulation
  package for analog and mixed-signal circuit design, analysis and test. The ICAP/4Windows package contains: IsSpice4 is 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. Over 21,000 engineers have been using the powerful IsSpice4 successfully for many years to design new power supply topologies and control methods. SpiceNet is a powerful and user-friendly schematic capture tool which provides a design creation and editing environment that can handle complex electrical designs as well as mixed-technology designs. IntuScope is a graphical waveform analyzer that gives you unparalleled flexibility to view and analyze simulation waveforms.
  
• Magnetics Designer
  
• Model Libraries: Power Designer Library and Vendor-Supplied IC Model
  Library
  
• Spice Applications Handbook
  
• Spice Cookbook

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