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?
We are all well aware that the demand for Electric Vehicles (EV) is increasing rapidly. This eight-part training session begins with a description of a typical EV system in part 1. Part 2 is a brief description of how both Lead Acid and Lithium Ion batteries are charged. Part 3 focuses on the types of power factor and harmonic currents. Part 4 discusses power factor correction and the typical boost PFC stage. Part 5 concentrates on the Phase Shifted Full Bridge topology, including the reasons why it is used and a detailed description of how it operates.
In this training, the audience will learn about the unique challenges faced by automotive system designers today to implement circuitry to detect external switches in a vehicle. The audience will understand the unique features offered by the MSDI and how they help solve these challenges. The audience will also learn about some of the more advanced features offered by the MSDI and how a system designer can take advantage of them in their design. The application of using the MSDI in an industrial system will also be briefly discussed.
The DS90UB953/954 System Design & Operation video series offers training for FPD-Link III devices for ADAS. FPD-Link III devices such as the DS90UB953-Q1/ DS90UB954-Q1 support sensor use over serial link for Advanced Driver Assist Systems (ADAS) in the automotive industry. In this training series, we will guide you through step-by-step procedures to initialize and bring-up the “Sensor-Serializer-Deserializer-ISP” link to an optimal performance level.
Creating a Robust Interface Between J6 and FPD-Link .
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 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 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.
This section presents the different methods of protecting the electronic loads connected to the automotive battery rail in the event of accidental reverse battery connection. The methods covered include:
- Schottky diode
- PFET + discretes
- Smart diode + NFET
This section presents the buck-boost dc-dc converter as an effective and efficient solution for the wide vin automotive battery rail. The advantages compared to pre-boost and two stage solutions are presented. Also contains an overview of buck-boost converter and controller offerings convering various current and power levels.
This module discusses discrete implementation typically seen inside automotive body control module to monitor external switches. Common implementation methodology is reviewed in this section, and some of the challenges using discrete implementation is discussed in detail.
In this section, the MSDI concept is introduced and how the MSDI helps solve system challenges is discussed in details
This module discusses some of the advanced features offered by the MSDI, and how a system designer can take advantage of these features to improve their system performance.
This module discusses how the MSDI device can be used in an industrial data acquisition system in details.
This module concluds this traning session with highlights of the MSDI value propositions, as well as collaterals available to obtain more information about this MSDI device from Texas Instruments.
This introduction video will give the background on FPD-Link III devices, such as the DS90UB953-Q1/ DS90UB954-Q1; the device's role within Advanced Driver Assist Systems (ADAS) in the automotive industry; and explain their broad appeal to engineers of all experience levels. This is fundamental to diving deeper into a 953/954 system, as well as, the links within the system.
This section frames the design and operation video series by showing why it is important to contextualize customer problems in terms of the links between the devices.
Specifically, this section will discuss: issues with initializing the camera and issues with reading the incorrect serializer ID from the deserializer.
Understanding what hardware and software settings are important is critical to establishing a foundation for the 953/954 system. These settings can occur during or after power up and may need to be changed via software. As a result, these settings are routinely checked and verified before checking any of the other links in the system.
Specifically, this sections discusses: Diagnostics post power up, Mode and IDX Pins, Clocking Modes between the 953/954, Aliasing, I2C Pass Through, Port selection on 954, Analog Launch Pad (ALP), and Successful I2C Communication
This section analyzes the link between the 953 and 954 and establishes how to identify the health and operation of the link. Since the link between the 953-954 is the most fundamental link used to communicate between devices, it is often checked first.
Specifically, this section discusses: Back Channel configuration, Built in Self Test (BIST), Adaptive Equalization (AEQ), and Channel Monitor Loop (CMLOUT)