Web-Based Power Simulation Plays Key Role in Silicon Carbide (SiC) Design Success – Embedded Computing Design

Written by Orlando Esparza

Senior Product Marketing Manager, Silicon Carbide Business Unit

Microchip technology

October 20, 2023


The electrification of everything is driving the rapid adoption of SiC semiconductors, which offer the fast switching capabilities, lower power losses, and higher temperature performance necessary to aid advances in electronic mobility, stability, and industrial applications.

Realizing these benefits requires a variety of SiC hardware and software tools, including a power simulator to calculate power losses and estimate SiC device junction temperatures using laboratory test data for common power converter topologies in AC-DC, DC applications. -DC and AC-DC. .

Power simulation tools such as Microchip’s MPLAB® SiC Power Simulator are critical for evaluating device performance in power converter designs. They are used to select and configure SiC device performance. This includes evaluating the effect of different gate resistances. Other key capabilities include comparing power losses and thermal performance for different devices and operating conditions, as well as waveform capture for passive component design needs.

Microchip offers this capability with its online MPLAB SiC Power SiC simulator. The tool is free and enables developers to evaluate Microchip’s mSiC™ products in various topologies before committing their design to hardware. Microchip has chosen a software environment based on Piecewise-Linear Electrical Circuit Simulation (PLECS) for this tool, which was designed in collaboration with Plexim. The tool runs faster and is easier to set up than the open-source, general-purpose SPICE models. It is primarily used to simulate energy dissipation and temperature rise with our mSiC products.

Designers using the MPLAB SiC Power Simulator can increase time to market while reducing component selection time through its comprehensive evaluation capabilities that provide valuable benchmark data. For example, a power electronics designer who has to decide between a 25 m mSiC MOSFET and an alternative 40 m mSiC MOSFET for a three-phase front-end active converter can instantly obtain valuable simulation results such as average power dissipation and peak coupling. The temperature of the two device options, the results can be superimposed to compare and contrast the differences.

An ideal starting point

A tool like the MPLAB SiC Power Simulator is generally the best place for designers to streamline their path to market. Designers using this tool gain valuable insight into how their SiC device performs in their system. It also simplifies the task of evaluating and selecting a SiC device and provides insights into how it performs at different gate resistance values. This tool ultimately enables SiC designers to launch their SiC-based design with ease, speed and confidence.

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Image Source : embeddedcomputing.com

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