The new version of iSim permits users to input requirements for their power supply and also configure the schematic for desired switching frequency, soft-start and other options. Designers can then generate a complete prototype design without delving into datasheets and application notes for design equations or to complete a series of iterative optimisation steps. Automating the power supply design process provides a fast and easy way to simulate electrical performance, control loop stability and efficiency.
Features of the site include: letting users modify compensation components and shows changes in closed loop response on the fly; designers can review efficiency graphs and power loss distribution across components and the main schematic page’s dashboard summarises the solution’s key performance parameters: efficiency, bandwidth, phase margin, cost and total footprint
For more advanced power supply designers, iSim v4.0 offers a ‘Custom Design’ section that allows users to enter specific performance targets for the power supply and automatically select industry-standard component values to meet those targets. The custom design also lets users select power MOSFETs that can be optimized for total power supply efficiency and lowest junction temperature in the system. The result is a robust design and a complete bill of materials from DigiKey that can be ordered online.
iSim v4.0 takes advantage of Intersil’s wide portfolio of models built on the SIMPLIS simulation engine for switch mode power supply design. Schematics can be also downloaded and run on the iSim:PE desktop simulator, a powerful and free offline schematic capture and simulation tool.