Rapid Power Electronics Simulation. Trusted results.

The ultimate simulation environment for power conversion and motor control.


” In terms of accuracy, I was surprised how PSIM simulation results are close to the actual experiments.

If the designed hardware is proper, you can expect the experimental results to match the PSIM simulation results.”

Omid Salari, Queen’s University

Click to Code.

Automatic code generation, no programming skills required.

Read more about Code Gen below.

C Block Capability & Simulation

A C block allows users to enter custom C code directly without compiling the code.

Read more about C block below.

Swift power loss calculation.

PSIM’s Thermal Module lets you quickly calculate the switching and conduction losses of switching devices and the core and winding losses of inductors – without slowing down simulation speed.

Read more about the Thermal Module below.

More than 20 years ago, Powersim created its core design and simulation software PSIM to empower engineers in the power electronics design industry. PSIM provides expert circuit and systems-level design and simulation capabilities. Our software has evolved to include multiple products in addition to PSIM. Today, we also have add-on modules, third-party software integration, and hardware target support.

Intuitive & easy to use

Accuracy you can trust

Get ideas to market faster

Links easily to other engineering platforms

Custom C code

Comprehensive motor drive library

Rapid AC sweep analysis

Flexible control simulation

Embedded Code Generation

Let your code be a self-starter. SimCoder generates high-quality, consistent C code from a PSIM control schematic automatically — free from human error — to boost the speed of your design, reduce your development costs, and propel your innovations to market.

SimCoder generates C code that is ready to run on specified physical hardware for real-time operation. You can see all the supported hardware targets here.

SimCoder’s automatic code generation function seamlessly integrates simulation with hardware implementation and greatly speeds up the development and design process.

If a hardware target is not specified, the C code generated by SimCoder can be inserted into the user’s own code for system control.

C Block Interface

C Block Functionality

The C block allows you to enter custom C code directly without compiling the code, unlike in the case of external DLL blocks, where a compiler is needed to compile the code into a DLL. The C block code will be interpreted and executed at runtime by a built-in C interpreter in PSIM.

This block makes it very easy to define any functions for the block through the powerful C programming language and to test your control algorithms in C code implementation.

There are two types of c block:

  1. The Simplified C Block for simple functions, which is embedded code generation compatible.
  2. The C Block for more advanced functionality, including custom function definition and library inclusion.

Learn More:

“Using this block, I could easily implement sampling and processing of behavioral functionality.”
Mahdi Tude Ranjbar, Queen's University
“You can simply code whatever you have in mind in C language.”
Omid Salari, Queen's University

Thermal Simulation

For switching devices (diodes, MOSFET, IGBT) the Thermal Module provides loss calculation with either a fixed junction temperature impact or with heat dissipation through a heatsink thermal equivalent circuit, which will allow you to ensure that your devices stay within the safe operating area. Since v11 you can model the device characteristics of wide bandgap — SiC & GaN — with the MOSFET (Eon).

PSIM’s core and winding losses for inductors make use of core dimensions, physical winding structure, etc. to ensure complex relationships like proximity effect are considered.

The loss calculations are thermally dependent and the junction temperature or core temperature is used by the models to reflect this dependence.

Learn more about PSIM’s Thermal Module.

C Block Interface

The Latest of PSIM – PSIM 2021a

What's new in PSIM 2021a
  • New Elements (1-phase and 3-phase Common-Mode Chokes, Constant Power DC Load, Buck, and Boost)
  • Multi‐Level Models for 1‐phase and 3‐phase Inverters
  • New Script Functions
  • New Welcome Page
  • New Devices in Thermal Module Database
  • SimCoder C Block Protection
  • Improved Motor Control Design Suite (MTPV, Speed‐Torque Curve, RT Block, JMAG-RT Model Design Template, and More)
  • New add-on Module: EMI Design Suite
  • New add-on Module: Power Supply Design Suite

Already have PSIM?

If you already have a PSIM license and just need some pointers to get started quickly and easily check out our Getting Started with PSIM video page:

Expanded Capabilities with PSIM Modules

PSIM has gone deep into power electronics and created modules to help you with any design you can dream up. No matter what you’re crafting — from complex motor drives to fully realized HEV systems — PSIM’s vast choice of add-on modules makes it easy to create a nimble solution that is neither cumbersome nor unnecessarily complicated.


Select your modules and propel your innovation forward.

PSIM’s modules are agile, straightforward to implement and integrate with other popular platforms, such as TI kits, JMAG, Modelsim, and Simulink. In today’s competitive world, time is the new currency. Industry leaders rely on PSIM’s vast range of features to move their innovations forward — resulting in more cost-savings and a faster track to higher revenues. Get started with PSIM’s modules today.

What PSIM Users say

“so accurate”
Robert Beland, EMD Technologies
“an exceptional tool”
T. Lesster, RCT Systems
“indispensable software”
Don Davidson, Gleneagles Technologies