The topics will cover system design issue and solution for Building Automation, Power Delivery and Test & Measurement. TI experts introduce the latest technology and innovation system reference design. Discover ways to enhance the time-to-market and create safer and efficient industrial systems.
Noise and EMI can be detrimental to sensitive analog signal chain circuitry. For this reason, many engineers automatically default to linear regulators. But, in doing so, they are essentially trading one problem (noise) for another (heat dissipation). In this section we will discuss what types of signal chain loads can be driven directly by a switching regulator to get low noise and EMI without sacrificing efficiency. We will also discuss when a linear regulator is absolutely needed to reach levels of noise not possible with a switcher.
Mitigating switching regulator EMI and noise is seen by engineers as a black art. Mess with the feng shui of the PCB layout too much, and the system may not pass CISPR standards. Because of this, many power designers simply turn to linear regulators as a guaranteed way to avoid the headache of reducing emissions.
The below introductory section features a video briefly discussing what exactly multi-phase buck regulators are, what applications they're suited for, and some of the challenges associated with implementing them. Additionally, the listed resources dive a little deeper into the topics covered in the video, providing further instruction in the beginning of your multiphase journey.
Some systems simply require more attention than others when it comes to EMI. In this section, we will examine some of those specific end applications and provide some helpful hints to reach EMI targets with each.
This section presents an approach to architecting the dc-dc conversion stage to handle the transients on automotive battery rail. Following topologies are covered:
- Always-on boost + buck
- On-demand boost + buck
- Buck + post boost
Pro/cons of the different approaches are also discussed.
In this training series, you will learn how the PMBus communication interface powers ASIC, FPGA, and DDR Rail power designs. Browse through the following sessions:
- Part 1: ASIC
- Part 2: Adaptive Voltage Scaling (AVS)
- Part 3: PMBus in Manufacturing
- Part 4: Telemetry
This section presents a high level overview of automotive board net and the describes the conditions that the the tests simulate. These include:
- Reverse polarity
- Jump start
- Load sump
- Starting profile
- Superimposed ac
This video presents a short overview of automotive frond-end and the transients tackled by the frond-end power conversion stage connected to an automotive battery rail.
This sections covers tips for selecting the appropriate capacitors for your switching power supply.
This section will cover the effect of capacitor self heating on your DCDC design.
This section will compare the closed loop analysis of the 3 different solutions.
If you want to learn from the mistakes of others, this session is for you. This practical presentation goes through a number of common mistakes in point-of-load DC/DC converter design and testing. With an engaging, interactive format, this session covers issues found in converter capabilities, component selection, control design, board layout and measurement techniques. The causes of the design mistakes and how to avoid them in future designs are explained.
Why should I take this training?
This section will cover selection of the compensation components for the TPS54824
Before we dive into specific application-based examples of noise and EMI mitigation, let's start with the basics. What is noise? What is EMI? What is ripple? How are they measured? What are some common approaches to limiting their effects? This section discusses these topics with a more conceptual approach to serve as a primer for the rest of the series.
Loop gain measurements show how stable a power supply is and provide insight to improve output transient response. This four-part training video series discusses the theory of open-loop transfer functions and empirical loop gain measurement methods. It also demonstrates how to configure the frequency analyzer and prepare the power supply under test for accurate loop gain measurements. Examples are provided to illustrate proper loop gain measurement techniques.
Control theory is often thought to be difficult to understand and theoretical approaches usually have lots of Mathematics and talk about Loop Gain, complex frequency, H(s), G(s) and so on.