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Reducing EMI via considerations external to the IC

For many engineers, layout for EMI mitigation is a black art. It may seem like the slightest adjustment could be the difference between passing or failing CISPR standards. Because of this, some power designers may shy away from using devices with switching elements as a guaranteed way to avoid the headache of reducing emissions. But this may be trading one problem for another, as switching devices generally have better efficiency and thermal performance.

Modules EMI

Reducing EMI through device selection

Efficiently addressing EMI starts at the device selection stage. On-silicon technologies like spread spectrum or unique packaging approaches like HotRod™ QFN can help reduce EMI before we even begin the discussion of component layout and filtering. 

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Product Comparison

This section will compare the 3 different products used

Practical Comparisons of 3 different DC-DC Control Modes

Certain end-equipment, like communications, server, industrial, and personal electronics have design challenges solved by the DC/DC converter’s control-mode.  This session will compare and contrast 3 different devices using 3 different control modes under the same design criteria to see how each control mode solves particular size, efficiency, external component, ripple and transient response design challenges.

Power supply design considerations: LM4360x/4600x SIMPLE SWITCHER® converters

This training series covers critical power supply design parameters such as EMI mitigation, heat dissipation, and loop compensation. Each training module features guidance using the LM4360x/LM4600x Synchronous SIMPLE SWITCHER® step-down voltage regulator as an example device.

Power fundamentals - DC-DC fundamentals

This five-part series provides an overview of DC-DC converters.

Power fundamentals - buck regulator architectures

This series provides an overview of the various buck regulator architectures, including:

  • Multi-Phase Buck Regulators
  • Hysteretic Buck Regulators
  • COT Buck Regulators
  • Current/Emulated Current Mode Buck Regulators
  • Voltage Mode Buck Regulators

Power Distribution for SoC and FPGA applications

In this training series, we examine the power requirements of SoC and FPGA devices discuss the optimal approach to powering them for specific use cases.
buck-boost in wireless security cameras and video doorbells

Part 3: Li-ion battery discharge curves and estimate battery operating time gains with buck-boost

In this section, you will become familiar with lithium ion battery discharge curves and learn in which use cases a buck-boost converter will significantly increase battery operating time.
buck-boost in wireless security cameras and video doorbells

Part 2: Top buck-boost converter use cases

In this section, you will learn about the top buck-boost converter use cases and the reasons why buck-boost converters can help to build a more efficient, reliable, and simple system. 
buck-boost in wireless security cameras and video doorbells

Part 1: Introduction

In this video, you will learn how to build an entire power tree, significantly increase the battery operating time, and stabilize the supply voltage rails during sudden load changes such as turning on the camera or WiFi. You will also learn how you can use buck-boost converters to directly and efficiently drive high power white and IR LEDs for evening and night vision.

Packaging

Another way to manage thermals is through IC packaging. Smaller and smaller packages continue to be introduced as output currents trend upward. Learn more about the packaging technologies that aid heat dissipation under these challenging conditions and enable high power density.

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Overview of industrial applications that require low quiescent current

This section will provide an overview of two applications which require low standby power -  specifically, high cell count battery pack based end-equipments and field transmitters.
South Asia Industrial Webinar

Overview of commonly-used interface for industrial application

The training provides a very comprehensive introduction of the commonly-used interfaces including RS-485, RS-422, ProfiBus, RS-232, IO-Link, CAN and LIN. These interfaces are used in the application of Factory Automation and some other industrial applications. For the engineer who needs to deal with interface system design, this is a very useful training.

Output Ripple and Jitter

This section will compare the out put ripple and jitter for the 3 different solutions

Output Capacitor Selection

This section will cover thing to consider when choosing your output capacitor

Optimizing PCB layout

PCB layout tips to manage heat dissipation with your switching regulator

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Optimizing DC/DC Converters for EMI in Automotive systems

Optimizing DC/DC Converters for EMI in Automotive Systems

EMI (electromagnetic interference) mitigation is a critical step in the design process in most electronic systems, and especially so in the automotive world. In many cases, automotive OEM emissions requirements are even more stringent than both national and international standards bodies like the FCC. Unfortunately, by their nature, switching regulators are sources of EMI; but, in order to keep power supply designs small and efficient, switchers are a critical component. So how can you reap the benefits of a switching regulator while still meeting challenging EMI requirements?

Not All Regulators Are Created Equal

Explore several subtle nuances to significantly improve power supply performance. Examples include: the hidden advantages of synchronous regulators, a module that features the best attributes of a switcher AND an LDO, and tips to reduce system noise by manipulating output capacitor combinations.

Multiphase 101

In today’s computing environment, CPUs, FPGAs, ASICs and even peripherals are growing increasingly complex and, consequently, so do their power delivery requirements. To handle the higher demands, multiphase regulators are becoming increasingly common on motherboards in many areas of computing--from laptops and tablets to servers and Ethernet switches. Designing with these regulators is more challenging than using conventional switchers and linear regulators, but the benefits of multiphase outweigh the complexity for high-performance power applications.

86 Results
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