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ON Semiconductor


Staying up to date on the latest advancements in power supply design is one of the many challenges engineers face today. To help designers meet this challenge, ON Semiconductor are pleased to host the 2021 Power Webinar.

Learn Comprehensive "Hands-on" Real-World Application Examples

Our power expert will provide rich technical and practical presentations that combine new, advanced power supply concepts, tutorial review of fundamental design principles, and "hands-on" real-world application examples.

What Should You Expect?

Attendees will receive in-depth theoretical and practical discussions on each topic and the pros and cons of different solutions to improve energy efficiency and system performance.


We will cover 10 topics that many power engineers will benefit for their design needs:

May 11th | 1 PM EDT
Power Factor Correction – Optimization Options

Speaker: Petr Papica

Environmental concerns lead to stringent efficiency requirements when designing modern power supplies. Compactness and form factor are other drivers for high efficiency, while in all cases, cost-effectiveness remains a crucial requirement. These constraints dramatically affect the PFC stage and the EMI filter, which can easily consume from 3% to 6% of the output power at low line, full load.

The topic shows in the first step that the control scheme can help to optimize the efficiency over the load range while reducing the cost by a multi-mode concept. In the second step, the architecture aspect will be considered within particular the bridgeless and interleaved approaches. We will compare the respective merits of these solutions in a 300 W, wide- mains application.

May 12th | 1 PM EDT
High-Density USB-PD Power Supply Using Active Clamp Flyback Topology Design Review

Speaker: Bryan McCoy

The classical flyback has reached its limitation in terms of efficiency and power density. The Active Clamp Flyback topology (ACF) utilizes the energy stored in the parasitics to achieve ZVS instead of dissipating it in the snubber circuit. The waveforms resulting are free of spikes which result in better EMI than the conventional techniques. The ACF solves the efficiency puzzle while lowering EMI emissions.

In this webinar, you will learn about ACF operation and how the NCP1568 can solve the problem of light load efficiency and standby power. Furthermore, this webinar will discuss the selection of essential components and equations for transformer design. Finally, we will review the performance data of a 65 W ultra-high-density active clamp flyback board for a USB-PD application.

May 18th | 1 PM EDT
Physically Based, Scalable SPICE Modeling Methodologies for Modern Power Electronic Devices

Speaker: James Victory

Modern-day power electronics encompass a broad spectrum of semiconductor device types, all of which present unique benefits and trade-offs in the design spectrum. Such devices include IGBTs, Super Junction MOSFETs, Trench MOSFETs, GaN HEMTs, SiC MOSFETs, and SiC diodes. Efficient power electronic design hinges on the availability of accurate and predictive SPICE models to realize all the individual device benefits and trade- offs. This webinar proposes novel physical and scalable SPICE models for power electronic semiconductors, including wide bandgap devices. The models are based on process and layout parameters, enabling design optimization through a direct link between SPICE, physical design, and process technology. The models are used as a critical design component during technology development and for the proliferation of new products.

May 20th | 1 PM EDT
Using Physical and Scalable Simulation Models to Evaluate Parameters and Application Results

Speakers: Heinrich Kamamen and Didier Balocco

The physical and scalable modeling technique is an advanced SPICE modeling approach based on process and layout parameters, enabling design optimization through a direct link between SPICE, physical design, and process technology. Physical and scalable models are available for nearly all discrete power components from the ON Semiconductor website. The models’ accuracy allows the user to extract device parameters for a given operating point when these parameters are not in the datasheet. These models provide a real picture of how the device will perform in an actual application. Power device losses are not guessed with an empirical formula but obtained in a real circuit, including all the parasitics (like layout, passive parasitics, etc.). Critical information, like junction temperature, can also be monitored to determine the device mission profile used in reliability calculations.

May 25th | 1 PM EDT
Analysis, Simulation, and Experiments Pave the Road to Success

Speaker: Didier Balocco

Loop control represents an essential part of the design of a switching power supply. However, for various reasons, analysis is often relegated to the project’s end after selecting the main components. It is sometimes possible to get the impression that a design delivering an acceptable transient response on the oscilloscope is ready for production through simple trial and error. This is a very unwise and potentially costly approach because most of the converter components are affected by stray elements whose wide- spread effects are hidden during the prototype stage. Without a thorough analysis backed up by simulations and loop measurements, you have no idea what phase and gain margins look like and how solid they are. Such a loosely designed converter will likely fail in production or shortly after being powered in the field. This webinar reviews some of the tools currently available to let you calculate, simulate, and measure your prototype before safely pressing the production start button to prevent such a situation.

May 27th | 1 PM EDT
Control Loop Design and Easy Verification Method

Speaker: Didier Balocco

This webinar presents a simple methodology applied to measure and optimize the control loop of a switching system. Following a brief introduction to control loop theory and stability criteria, we evaluate such a system. A PWM simulation model is shown in practice to predict loop stability, together with a quick overview of obtainable results. A straightforward method to implement control loop measurement in a real environment is presented, followed by an optimization method using standard calculation-tools.

June 15th | 1 PM EDT
Magnetic Basics

Speaker: Petr Papica

When designing a power supply for the first time, designers realize they will need an inductor and or a transformer (or several of them). Standard values and shapes are widely available for inductors and some for transformers. However, when designers want a particular shape, layout, structure, or performance, the only choice is to make a custom inductor or transformer. This webinar aims to refresh designers’ memory about what they learned (and forgot) in school about magnetism to help them in the custom design process.

We start from magnetism basics, introducing the various laws that relate electrical quantities (voltage and current) to magnetic quantities (flux density and magnetic field). Then, we will detail the transformer principle and explain its various energy transfer (forward and flyback) modes. Finally, we analyze a flyback transformer design.

June 17th | 1 PM EDT
3-PHASE PFC for 10 kW Industrial and Automotive Applications

Speaker: Massimo Paglia

This topic provides practical aspects of the hardware and software implementation of a 3- phase PFC converter. The operating principles, like the control strategy and the implication of parameters like the switching frequency, are described. This webinar presents a deep dive into the software from the system level, focusing on analog quantity readings due to the microcontroller’s minimal ADC capabilities (single ADC with single S/H with a conversion time of 1 μs per input). This webinar provides an overview of the main elements, active (SiC MOSFET) and passive (boost inductor), from a hardware standpoint, and includes practical aspects like a handy method to determine the power losses and presents a validation through real data numbers.

June 22nd | 1 PM EDT
Introduction to LLC Resonant Converters

Speaker: Vaclav Drda

The series LLC resonant mode converter is a very popular topology of switch-mode power supply (SMPS) for medium and high-power converters. This topology offers high-efficiency and high-power density. The same advantages are also important for low-power converters. The power consumption of mass-produced electronic equipment (like TV or computers) is decreasing thanks to the significant adoption of LLC topology in power supplies for these devices nowadays.

June 23rd | 1 PM EDT
Synchronous Rectification Implementation

Speaker: Tomas Tichy

In synchronous rectification, switches, driven by synchronous rectifier controllers, replace diodes or rectifiers. The driving signal applied to this switch needs to be synchronized with the main clock or the converter’s operating state.

This webinar provides you an overview of all phenomena involved in synchronous rectification. It describes in detail the different waveforms applied in each technique used in a synchronous rectifier controller. It will detail how to implement synchronous rectification in various flyback types (Discontinuous Conduction Mode; Boundary Conduction Mode or quasi-resonant; Continuous Conduction Mode and, also, Active Clamp).