A number of example circuits are included in SIMetrix/SIMPLIS Elements and are available here for download. In many cases, these circuits have been specially prepared to run in Elements.
Also included in SIMetrix/SIMPLIS Elements are a number of other examples (see the second table below) which you will be able to open and view, but not simulate due to the Elements circuit size restrictions. Should you want to run one of these circuits, we recommend you apply for a SIMetrix/SIMPLIS full evaluation license.
Example Circuits Which Run in Elements
| SIMPLIS Buck Converter | This fixed frequency synchronous buck converter is taken from the SIMPLIS Tutorial. The converter uses a 3-pole, 2-zero compensator with all compensator values calculated in the F11 window. |
| SIMPLIS Buck Converter w Soft Saturation | This fixed frequency synchronous buck converter uses a non-linear inductor to model the soft saturation of the output inductor. |
| SIMPLIS Buck Converter w Switching Losses | The above schematic is modified to model the switching losses of the power switch Q1 by using a SIMPLIS Level 2 MOSFET model and a Level 1 model for the MOSFET driver U2. |
| 4-phase Synchronous Buck | This reference design for a four-phase synchronous buck has precision current sensing for a 12-V input 1-V output with 100-A output current. |
| 6-phase Synchronous Buck | A six-phase synchronous buck reference design with 8-bit VID and RdsON or DCR differential current sensing converts a 12-V input to a 1-V output at 135-A output current. |
| ZVS Full-Bridge w Synchronous Rectified Output | A phase-shifted full-bridge reference design converts a 400-V input to a 12-V output at a 50-A output current. |
| Dual-Output Forward Converter with Coupled Output Inductors | This reference design of a single-switch forward converter produces a dual output using coupled output inductors. |
| LLC Half-Bridge Converter | This LLC converter converts a 380-V DC input to a 24-V output at 120 W. The control loop uses a variable frequency control implemented with the SIMPLIS VCO. |
| PFC Converter | This Constant On-Time PFC converter demonstrates how SIMPLIS can quickly simulate complex circuits over a large time window. The control loop is implemented with a constant on time with a maximum frequency limit of 500kHz. |
| Synchronous Buck with Digital PWM | This digitally controlled Synchronous Buck Converter uses the built-in PID discrete-time filter to implement a sampled time digital control loop. This example is compatible with the SIMPLIS POP and AC analyses, allowing the control loop to be optimized as if it were controlled by an analog loop. |
| Diode Reverse Recovery Examples | These examples demonstrate the reverse recovery operation of a diode. |
| Transconductance Amplifier Example | This example demonstrates a transconductance amplifier subcircuit. |
Example Circuits That Require a Full SIMetrix/SIMPLIS License
You can view the schematics of each of the circuits below using SIMetrix/SIMPLIS Elements, however, simulating these circuits requires a full SIMetrix/SIMPLIS license. You can apply for a free time-limited evaluation license on the evaluation page.
| SIMPLIS Buck Converter w Soft Saturation - full | This fixed frequency synchronous buck converter is taken from the SIMPLIS Tutorial. The converter uses a non-linear saturating inductor and a 3-pole, 2-zero compensator with all compensator values calculated in the F11 window. |
| LLC Half-Bridge Converter - full | This LLC converter converts a 380V DC input to a 24-V output at 120 W. The control loop uses a variable frequency control implemented with the SIMPLIS VCO. |
| Synchronous Buck with Digital PWM - full | This digitally controlled Synchronous Buck Converter uses the built-in PID discrete-time filter to implement a sampled time digital control loop. This example is compatible with the SIMPLIS POP and AC analyses, allowing the control loop to be optimized as if it were controlled by an analog loop. |
| PFC Converter - full | This Constant On-Time PFC converter demonstrates how SIMPLIS can quickly simulate complex circuits over a large time window. The control loop is implemented with a constant on time with a maximum frequency limit of 500kHz. |
| Self-Oscillating Converter - full | This self-oscillating converter utilizes a variable frequency control technique to regulate a 5-V/2-A output from a 300 to 350-V input. |
| Class-D Audio Amplifier - full | This example uses a half-bridge design and analog control to implement a low noise Class D Audio Amplifier with a frequency response tailored with several active filters. |
Example Circuits That Require a Full SIMetrix/SIMPLIS License and the Magnetics Design Module
| SIMPLIS MDM Buck Converter | An inductor for the fixed frequency synchronous buck converter from the SIMPLIS Tutorial, designed, simulated, and post-processed using MDM. |
| SIMPLIS MDM PFC Boost Inductor | A boost inductor designed in MDM for the constant on-time PFC converter. A standard SIMPLIS example. |
| SIMPLIS MDM Self-Oscillating Flyback Transformer | A flyback transformer designed, simulated, and post-processed using MDM for the self-oscillating converter that regulates a 5-V/2-A output from a 300 - 350-V input (another standard SIMPLIS example). |
| SIMPLIS MDM LLC Resonant Inductor Transformer | The standard SIMPLIS LLC half-bridge converter example modified so that it is on open-loop, with both the resonant inductor and the power transformer designed using MDM. |