Videos


Parameterizing an LLC Converter

Designing an LLC converter from specifications can be tricky. It is often useful to vary component values to understand how the converter dynamics change in response. See how to use Design Variables in Eta Designer to quickly select LLC component values, create a controller, and close the loop with good dynamics and a fast transient response.


Designing Custom Magnetics in Eta Designer

Eta Designer offers power electronics engineers the capability to quickly design and analyze custom inductors and transformers for their power converters. Learn how to use Eta Designer to design a custom transformer for a flyback converter and to calculate the core, DC conduction and AC losses in that transformer.


Modeling and Validating a Power Converter, Part 1: Modeling the Converter

We create an Eta Designer circuit modeling a synchronous buck converter using the TI TPS40170 controller IC. We examine device model selection and compensator design using a feedback network.

In part 2, we verify the Eta Designer circuit against the TPS40170 EVM board on the bench.


Modeling and Validating a Power Converter, Part 2: Efficiency and Stability

We validate the efficiency and control stability of the TPS40170 EVM on the bench and compare the results with the circuit created in Eta Designer in part 1 of the video. We show how to accurately measure converter efficiency and then to compare it with the simulated efficiency. Next, we show how to measure converter loop gain, a metric of converter stability, using the Digilent Analog Discovery 2.


Eta Designer 1.0 Introduction

Eta Designer is a new design tool for power electronics engineers. It allows you to design, analyze and optimize your power converter designs with an ultra-fast simulator, efficiency calculations, and control loop analysis. This video walks you through the basic features and capabilities of Eta Designer.


Create a PWM Controller Module in Eta Designer

Use Eta Designer's sub-circuit capability, and new analog and digital controller blocks, to create a basic PWM controller. Then learn how to create a library with this part to use in all of your designs. We will demonstrate creating a closed-loop synchronous buck converter.


Power Converter Optimization Features in Eta Designer

Learn how to use Eta Designer's new optimization features to understand the tradeoffs in your power converter design. The video will discuss creating Sweeps and Metrics to vary parameters in your design and to evaluate figures of merit. These sweeps and metrics are used by the Pareto Front and Monte Carlo simulations to find optimal design points of your converter and to understand the variation of its figures of merit over parameter variation.


Creating a Quasi-Resonant Flyback Controller in Eta Designer

Eta Designer can be used to model power converters using complex controller structures. This video will describe how Eta Designer can be used to easily construct and quickly simulate a quasi-resonant or valley switched flyback converter.


Controlling a Current-Mode Buck Converter in Eta Designer

Eta Designer uses a unique but powerful method to define controllers for power converters. This video shows you how to quickly and easily create a current-mode buck converter, including slope compensation.


Adding Device Models to Eta Designer

Using good device models is critical to obtaining accurate efficiency calculations. While Eta Designer comes with a built-in library, you may need to add your own device models to match the parts you're using. This video shows you how to add custom device models, in particular, a power MOSFET and an inductor. Other devices can be added in a similar manner.


Measuring Power Converter Loop Gain using the Analog Discovery 2

Measuring the loop gain of power converters is critical to understanding their stability but to date has required expensive equipment. This video shows you how to measure the loop gain using the inexpensive Analog Discovery 2 from Digilent.


Eta Designer Beta Introduction

Watch this video to see how Eta Designer can quickly and easily let you design, analyze and optimize your power converter designs! This video covers the basics: how to make a new converter, choosing devices, performing transient and steady-state simulations, and determining and improving efficiency.


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