Hover over each link for a description of each webinar.
| SIMPLIS - General | Power Stage Modeling |
Measuring the Conducted EMI of a Switching Power Supply Using the SIMPLIS LISN Device Date: 2025-07-03 In this webinar, the use of the LISN to characterize the conducted EMI performance of a power factor correction (PFC) rectifier is demonstrated. Conducted EMI measurements of the PFC rectifier with and without an EMI input filter are shown, demonstrating the effect of a filter on conducted noise. Using DVM, a test plan is shown that automates the procedure of EMI input filter design. First, the conducted EMI of the PFC rectifier without an input filter is simulated and measured. This is then compared to a CISPR standard specification to determine the required input filter attenuation. Then the Optimiser is used to select filter component values that satisfy the attenuation requirement. Finally, the PFC rectifier is simulated with the newly designed EMI input filter to verify that the conducted EMI measurements meet the CISPR standard limits. | Modeling Digital Content with a SIMPLIS DLL-defined Device Date: 2020-09-17 Included with the release of SIMetrix/SIMPLIS 8.40 is the introduction of the SIMPLIS C/C++ code DLL-defined device. This feature is available to all SIMPLIS users with a Pro or Elite license. In this one hour webinar, we will walk through the entire lifecycle of a DLL-defined Digital Voltage Controlled Oscillator. Creating a DLL-defined Digital Device requires both SIMetrix/SIMPLIS Pro or Elite and a C/C++ compiler toolchain. In this webinar, we will switch between them in order to create and test our example device. |
Packaging SIMPLIS Models for Distribution Date: 2021-08-19 This one hour webinar will cover some of the SIMPLIS Advanced Training course material, specifically Section 4.4: Protecting Your IP - Model Encryption. The bulk of the webinar will focus on steps necessary to create self-contained, standalone schematics with encrypted IC models suitable for distribution to end users. | Modeling Switching Losses And Efficiency Date: 2017-09-14 This one hour webinar will explore measuring switching losses and efficiency on SIMPLIS circuits. In order to effectively model switching losses, the MOSFET driver circuit must be modeled with more detail than is typical. The driver sourcing and sinking current limits, as well as the saturation resistances, must be realistically modeled for the switching losses to approximate a real circuit. |
Date: 2016-09-15 Several tips and tricks to help you work more efficiently in SIMPLIS will be discussed in this one-hour webinar. These time saving actions are some of the | MOSFET Switching Losses - A Deep Dive - Part I Date: 2018-09-27 In this one-hour webinar, we focus on the losses of a MOSFET switching a clamped inductive load. A dual simulator mode test bench will be presented which helps compare and contrast how MOSFETs are modeled in both SIMPLIS and SPICE. Losses due to turn-on, turn-off, and conduction are quantified using both SIMPLIS and SIMetrix SPICE. All losses will be presented in both terms of energy as well as power dissipation, and these energy curves provide helpful insight into which part of a switching transition dominates the loss. Finally, we end the webinar discussing the difficulties in finding a true, periodic steady-state operating point which is crucial to measuring efficiency in a power converter. |
Date: 2017-03-16 SIMetrix/SIMPLIS has a powerful built-in measurement system which allows users to make measurements on simulation waveforms. As powerful as this system is, it is infrequently used. In this one hour webinar you will learn how to make measurements, and most importantly, add your own custom measurements to the program. | MOSFET Switching Losses - A Deep Dive - Part II Date: 2018-11-29 In this webinar, we will take the customized MOSFET models created in the first webinar and insert these models into a real application circuit. A hard-switched synchronous buck converter will be used as the test vehicle. |
Date: 2017-06-29 This one hour webinar focuses on identifying the circuit elements which cause a SIMPLIS simulation to run slowly. The webinar will begin with a description of circuit elements which cause SIMPLIS to run slowly. Example circuits with small RC and L/R time constants will be presented and examined, with the simulation speed correlated to the smallest time constant. | Modeling Reverse Recovery Loss Date: 2019-01-24 In this one hour webinar, we will discuss reverse recovery loss in diodes. To begin the discussion, we will present waveforms for a diode commutating from an on to off state under an inductive load for the following models:
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Using SIMetrix/SIMPLIS to address the PDN Problem Date: 2024-06-06 In high-performance microprocessor applications, the power distribution network (PDN) refers to the network of components, interconnections, and printed circuit board paths used to distribute power from a switching power supply source to the input voltage pins of the microprocessor load. The proper design of the PDN is vital to ensuring that the microprocessor load receives the correct voltage and current overall operating conditions, including during current steps on the order of 1000 A and slew rates on the order of 1 A/ns. In this webinar, we show how to take an automatically extracted Full PDN Spice model of the PCB layout parasitics and prepare that PDN model to be used in SIMetrix/SIMPLIS using the SIMPLIS PDN Parser. We also show how to characterize the Full PDN model in SIMetrix Spice and then obtain optimized values for a Reduced Order PDN model that captures the parasitic inductive behavior of the Full PDN model. We demonstrate that the Reduced Order PDN can be used to handle the bulk of the power system design tasks, taking advantage of the substantially faster simulation times when compared with the Full PDN model. | Modeling Magnetics In SIMPLIS -- Part I Inductors Date: 2016-06-23 As pressures increase to increase efficiency and decrease size and design cycle time, it is becoming more important to model the non-ideal behavior of magnetic power devices. As switching frequencies increase, the need to model PC Board and device package parasitics is also growing. This webinar is Part I of a series looking at how to effectively model magnetic devices in SIMPLIS. Using Piecewise Linear modeling, SIMPLIS offers a powerful and simple way to model non-linear magnetic devices such as power inductors and transformers. In this one hour webinar we focus on how to model inductors in SIMPLIS. |
Modeling Magnetics In SIMPLIS -- Part II Transformers Date: 2017-01-19 This Webinar presents the SIMPLIS best practices approach to modeling energy-storage transformers for power electronic applications. We first illustrate the SIMPLIS T-Equivalent circuit transformer model, which is good for the large majority of switching power supply applications, such as predicting device stresses and output voltage cross regulation. We also address an approach for modeling more complex magnetic structures based on a reluctance model. | |
| SIMPLIS Modeling - General | |
Introduction To Modeling In SIMPLIS Date: 2017-10-19 This one hour webinar is the first in a series of webinars on creating high level models for the SIMPLIS simulator. The webinar will begin with an overview of the modeling goals which should be common to all modelling efforts. A hierarchical example is then examined and tested against those goals and detailed modeling techniques will be discussed. Finally, we will present the model development timeline, from initial concept schematics, to the final hierarchical design. | New Features |
The Power Of Piecewise Linear Modeling Date: 2016-10-20 Piecewise linear (PWL) resistors, capacitors, and inductors allow designers to create very complex models using only a single two terminal device. This one-hour webinar will start with the one of the most versatile SIMPLIS primitives: the PWL Resistor. The webinar uses real-world application circuits to define PWL Resistors as well as explain their limitations. Circuit examples include:
| Using LTspice® Schematics and Models with SIMetrix Date: 2023-04-27 Since version 9.1, SIMetrix can read LTspice® schematics and use many LTspice® models even those containing special LTspice®-invented devices. In this one-hour webinar, John Warner will demonstrate opening an LTspice® schematic and then running a simulation for that schematic in SIMetrix. He will then go on to explain some of the nuances associated with transferring LTspice® designs to SIMetrix and then continuing further development in the SIMetrix environment. |
Date: 2017-05-18 This one hour webinar focuses on creating high-level models, both from the IC developer and system-level designer's point of view. Techniques for defining block re-usability and parameterization as well as designing models which simulate fast and succeed at the Periodic Operating Point (POP) analysis are covered. Finally, methods for backing up models and taking | New Features in SIMetrix/SIMPLIS Version 8.40 Date: 2020-06-25 SIMetrix/SIMPLIS Version 8.40 was released on May 19th, 2020, and offers several important upgrades and additional features. Several new features were added and this webinar will cover some new SIMPLIS features:
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Introduction To Parameterization Date: 2016-05-19 Parameterization is one of the most powerful concepts in SIMPLIS. Using parameterization, you can create reusable technology blocks where each block is configured by parameters. In this one hour webinar you will learn how to use parameters on both the top level schematic and how to pass parameters into subcircuits using the SIMPLIS_TEMPLATE property. | New Features In SIMetrix/SIMPLIS Version 8.20 - Part I Date: 2018-05-17 SIMetrix/SIMPLIS Version 8.20 was released on January 27th, 2018 and offers several important upgrades and additional features. Among the changes for this version are a brand new, ground up redesign of the waveform viewer, a simulation health report which diagnoses common simulation issues, and updates to the arbitrary probe for Multi-Step and Monte Carlo simulations. In this one hour webinar, several new features will be discussed:
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Date: 2018-03-22 SIMetrix/SIMPLIS has three general purpose dialog functions which can be added to schematic symbols, allowing a user to easily edit the parameters used in the model. While this makes it easier for users to interact with the model, adding a parameter editing dialog to your model also allows you to limit user's input values to ranges which are acceptable to the model. To simplify the creation of the dialogs, SIMPLIS provides a set of dialog definition spreadsheets. These Excel formatted documents make it easy to create dialog definitions and to save these definitions to the symbol. Our latest version of these spreadsheets have an added bonus - the spreadsheets also add the required parameterization to the symbol. | New Features In SIMetrix/SIMPLIS Version 8.20 - Part II Date: 2018-07-19 SIMetrix/SIMPLIS Version 8.20 was released on January 27th, 2018 and offers several important upgrades and additional features. This webinar is the second part of a two-part series detailing these features. In this one hour webinar, several new features will be discussed:
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New Features In SIMetrix/SIMPLIS Version 8.10 Date: 2017-02-16 SIMetrix/SIMPLIS version 8.10, was introduced on December 13th, 2016. Several new features were added and this webinar will cover some new SIMPLIS features. | |
| Control Circuit Modeling | New Features In SIMetrix/SIMPLIS Version 8.00 - Part I Date: 2016-01-21 SIMetrix/SIMPLIS version 8.00, with a new user interface using dockable layouts, was released in August, 2015. In addition the user interface changes, the schematic editor was updated with graphical annotation features including images and hyperlinks. Finally, the Analog Functions library adds several general purpose models. This webinar is divided into two parts - the first part is a one hour webinar which introduces 5 new features of version 8.00:
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Modeling In SIMPLIS - Part I: Oscillators Date: 2017-11-09 This webinar will cover the design of two common blocks used in power converters:
| New Features In SIMetrix/SIMPLIS Version 8.00 - Part II Date: 2016-02-18 SIMetrix/SIMPLIS version 8.00, with a new user interface using dockable layouts, was released in August, 2015. In addition the user interface changes, the schematic editor was updated with graphical annotation features including images and hyperlinks. Finally, the Analog Functions library adds several general purpose models. This webinar is divided into two parts - the first part is a one hour webinar which introduces 5 new features of version 8.00:
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Modeling In SIMPLIS - Part II: Soft Start Date: 2017-12-14 This webinar will cover the design of soft start blocks using both digital and analog techniques.
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Modeling In SIMPLIS - Part III: PWM Modulators Date: 2018-01-18 In this one hour webinar, PWM modulators will be presented in both analog and digital forms. Trailing edge, leading edge, and dual edge PWM modulators will be presented in detail.
| MDM |
Modeling In SIMPLIS - Part IV: Programmable Load With Editing Dialog Date: 2018-02-15 In this one hour webinar, a programmable load with three load types (constant resistance, constant current, and constant voltage) will be presented. After the individual loads are created, a parameter editing dialog is used to select which load will be used in the simulation as well as the electrical parameters for the load.
| Introduction to the SIMPLIS Magnetics Design Module - Part I: Inductors Date: 2020-07-16 The SIMPLIS Magnetics Design Module (MDM) is a new add-on available for all SIMetrix/SIMPLIS products (Classic, Pro, or Elite) starting with version 8.40. MDM enables the creation of realistic inductor and transformer models from a large, editable, and extendable catalog of standard and customizable components (cores, materials, wires, and bobbins), as well as the calculation detailed and accurate inductor and transformer losses and temperatures. SIMPLIS MDM will be introduced in this two-part webinar. Part I will cover the basics of MDM and demonstrate how MDM can be used to design inductors. |
Modeling Digital Control With SIMPLIS (Including Verilog HDL) Date: 2016-07-21 The webinar starts with the digital hardware approach to modeling, where adders, multipliers, and other digital hardware models are used to implement the control algorithm. The second approach uses discrete time filters, which emulate the digital hardware model but with the benefit of allowing an AC analysis to be performed on the control loop. Next, SystemDesigner, which is a set of built-in modelling blocks which allow the user to use a single schematic to implement both a digital hardware and a discrete time filter model. Finally, co-simulating SIMPLIS with the controller implemented in Verilog HDL is covered. | Introduction to the SIMPLIS Magnetics Design Module - Part II: Transformers Date: 2020-08-20 This webinar is the second part of an introduction to the SIMPLIS Magnetics Design Module (MDM). In this webinar, we will demonstrate how MDM can be used to design transformers. It will also introduce, in detail, the new Multi-Level Lossy Transformer, which does not require MDM for its Levels 0 through 2. Before attending or watching this webinar, please make sure you have reviewed the Introduction to the SIMPLIS Magnetics Design Module - Part I: Inductors webinar. |
SIMPLIS Magnetics Design Module - Application: LLC Design Date: 2020-10-15 This webinar will show how the Magnetics Design Module (MDM) can be used in the context of a real-world LLC converter design example. It will start by going through part of the design process of an actually manufactured 600W DC-DC LLC converter board, using MDM to demonstrate the advantages of the final design choices compared to the initial design. Further possible variations of the designs of the resonant inductor and transformer of the LLC converter will then be explored, along with their impact on converter performance. Trade-offs, such as cost vs. efficiency, will be examined. It will be shown how even in situations where the “right” magnetics design seems apparent from the application constraints and designer experience, MDM can be used to quickly evaluate many alternatives and “what ifs” straightforwardly and quickly, giving immediate insight into the impact of different design choices not only on the magnetics, but on the whole system. | |
| SIMPLIS Analysis | |
How SIMPLIS Periodic Operating Point (POP) Works Date: 2016-04-28 The SIMPLIS POP analysis finds the periodic steady-state operating point of a circuit and is one of the most powerful features of SIMPLIS. To find the steady-state operating point, POP runs a sequence of transient simulations on your circuit, constantly refining the initial conditions between simulations. This one hour webinar will cover how to setup the POP analysis on a DC/DC converter, the core POP process, analysis parameters and common POP errors. | DVM |
Running AC Analyses On PFC Converters Date: 2016-11-17 Running AC analyses on PFC converters has always been challenging because the circuit has no true steady-state when the input voltage is sinusoidal. The SIMPLIS POP and AC analyses assume the converter has a single operating frequency, namely the switching frequency. As soon as the sinusoidal input voltage is applied to the converter, running a POP analysis becomes difficult, but as you will see, not impossible. Tricks for running a POP and AC analysis on a PFC converter with an AC input voltage will be discussed and the loop gain results obtained with a DC input will be compared to the loop gain results when the converter is operating with an AC input. | Introduction To The Design Verification Module (DVM) Date: 2016-08-18 This one hour webinar introduces DVM, the mechanics of setting up a design to run in DVM, and customizing testplans. Examples include plotting measured scalar values (e.g. average output voltage) against other scalar values on X-Y plots, creating design of experiments, and worst case analysis of the power converter. |
SIMPLIS POP and AC Analysis of PFC AC-to-DC Converters Date: 2023-05-25 This Webinar introduces the new PFC POP Trigger device which monitors both the switching frequency of the PFC converter as well as the AC line frequency. The output of the PFC POP Trigger device is connected to the circuit in such a way as to allow SIMPLIS to perfectly synchronize the switching of the converter so as to produce an exact integral number of switching cycles in each AC line cycle. This technique works for both fixed and variable-frequency PFC control schemes. The use of the PFC POP Trigger device is explained using several step-by-step examples. As expected, the PFC POP Trigger allows users to perform a successful POP analysis followed by a SIMPLIS AC analysis of PFC AC-to-DC converters. | Date: 2017-07-20 This one hour webinar will expand on the previously held Introduction to DVM Webinar, with the goal of bringing into reach some of the more powerful DVM features. The bulk of the webinar will be focused of practical example circuits. |
Using the SIMPLIS Pre-POP Transient Analysis Date: 2025-09-04 An optional Pre-POP Transient analysis is added to SIMetrix/SIMPLIS v9.30 as a subtask of the Periodic Operating Point (POP) analysis. The Pre-POP Transient analysis, if enabled, is the first subtask to be run in the POP analysis. The Pre-POP Transient analysis stops when either it has reached the specified stop time or when the logic output of a certain triggering gate has registered a 0-to-1 transition. After the Pre-POP Transient analysis is complete, the simulation of “N cycles before launching POP” is run next, followed by the core POP process. The Pre-POP Transient analysis is useful for complex systems requiring extensive initialization of a large number of energy-storage elements and sequential logic circuits, allowing the core POP process to be launched only after the system has settled to a reasonable starting point. In addition, if the Pre-POP Transient analysis is enabled, the POP analysis now supports automatic resetting of the “Maximum period” parameter according to the switching periods observed by the POP trigger during the Pre-POP Transient analysis. In this webinar, we will walk through an example that details the Pre-POP Transient analysis and its options. We will also discuss when it is appropriate to use this analysis. | DVM Testplan Wizards and Editor Date: 2023-06-15 Previous to version 9.1, DVM Testplans required a third-party application to edit; either a text editor or a spreadsheet program like Excel©. With the version 9.1 release, Testplans can now be edited within SIMetrix/SIMPLIS. Along with removing the reliance on third-party software, the built-in editor also assists with various cell inputs. In addition to cell entry assistance, the Testplan Editor also provides real-time error checking. Also released in version 9.1 are the Testplan Wizards. These wizards will dynamically create a pared-down version of the built-in AC-DC or DC-DC Testplans, allowing you to focus on only desired simulation objectives. During this one-hour webinar, all three wizards will be reviewed, during which, a testplan will be created. The testplan will then be examined, edited, and executed in the Testplan Editor. |