Example Schematics

A number of example circuits are included in SIMetrix/SIMPLIS Elements and have been made 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 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 12V input 1V output with 100A 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 12V input to a 1V output at 135A output current.
ZVS Full Bridge w Synchronous Rectified Output A phase-shifted full bridge reference design converts a 400V input to a 12V output at 50A 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 380V DC input to a 24V output at 120W. 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 demonstrates the reverse recovery operation of a diode.

 

Example Circuits Which Require a Full SIMetrix/SIMPLIS License

You can view the schematics of each of the circuits below using SIMetrix/SIMPLIS Elements, however, to simulate 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 24V output at 120W. 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 5V/2A output from a 300-350V 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.