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FAQ

Basics of board-mounted dc/dc converter reliability

January 15, 2021 By Jeff Shepard Leave a Comment

The reliability of board-mounted dc/dc converters is important to understand and quantify. It’s a measure of the frequency of system or device failures as a function of time. Reliability is the observed failure rate and is defined as either the time between two failures (in hours), called the Mean Time Between Failures (MTBF), or the […]

Filed Under: Converters, DC-DC, FAQ, Featured Tagged With: FAQ

EMC/EMI design and the use of board-mount dc/dc converters

January 14, 2021 By Jeff Shepard Leave a Comment

EMC/EMI

Electromagnetic compatibility (EMC) and electromagnetic interference (EMI) are system-level considerations that have implications for power system design, especially when multiple board-mounted dc/dc converters are used in a distributed power architecture (DPA). EMC/EMI is a multidimensional consideration and includes differential- and common-mode noise on both the input and output of the converter radiated and conducted noise […]

Filed Under: Converters, DC-DC, FAQ, Featured, Power Management Tagged With: FAQ

Thermal management considerations for board-mounted dc/dc converters

January 13, 2021 By Jeff Shepard Leave a Comment

thermal management

System-level thermal design is equally important to the electrical specifications of board-mounted dc/dc converters. And the growing use of variations on a distributed power architecture (DPA) increases the complexity of thermal design. A single multiple-output ac/dc power supply is used to power the various loads in a conventional power architecture. The use of a centralized […]

Filed Under: Converters, DC-DC, FAQ, Featured Tagged With: FAQ

PMBus 2.0 expanding PMBus for future system needs: Virtual Interview, part 2 of 2

January 13, 2021 By Aimee Kalnoskas Leave a Comment

We are here today with Bob White, the PMBus power management protocol’s originator, long time chair of the PMBus specification working group, and current editor of the PMBus and SMBus specifications. Bob is the principal author of the PMBus specifications and continues to participate in the PMBus Specification Working Group. He is a well-known speaker […]

Filed Under: FAQ, Featured, Power Management Tagged With: FAQ

PMBus® update, what changes lie ahead? Virtual Interview, part 1 of 2

January 12, 2021 By Aimee Kalnoskas Leave a Comment

We are here today with Bob White, the originator of the PMBus power management protocol, long time chair of the PMBus specification working group, and current editor of the PMBus and SMBus specifications. Bob is the principal author of the PMBus specifications and continues to participate in the PMBus Specification Working Group. He is a […]

Filed Under: FAQ, Featured, Power Management Tagged With: FAQ

Specifying board-mounted dc/dc converters

January 12, 2021 By Jeff Shepard Leave a Comment

The specification of board-mounted dc-dc converters is an important and detailed process. Correctly implemented, it results in a cost-effective solution that meets all the needs of the application. Incorrectly specified dc/dc converters can result in a more costly device than necessary and/or a device that is not suited for the application. This FAQ will review […]

Filed Under: Converters, DC-DC, FAQ, Featured Tagged With: FAQ

The basics of AC-line isolation for safety, Part 2: The solution

January 5, 2021 By Bill Schweber Leave a Comment

ac-line isolation

Isolation from the AC line is essential for user safety in many situations and can be implemented using a special isolation transformer as well as other means. Part 1 of this FAQ looked at the multiple-fault and failure scenario that can put users at risk from AC-line connected products, including appliances, instruments, or medical devices. […]

Filed Under: FAQ, Featured, Power Management Tagged With: FAQ

The basics of AC-line isolation for safety, Part 1: The challenge

January 4, 2021 By Bill Schweber Leave a Comment

ac-line isolation

Isolation from the AC line is essential for user safety in many situations and can be implemented using a special isolation transformer as well as other means. “Isolation” is one of those terms which gets tossed around and is often cited as an almost universal, all-purpose cure for various ongoing or possible circuit and system […]

Filed Under: ac power sources/frequency converters, FAQ, Featured Tagged With: FAQ

Power system design considerations for wireless IoT nodes and wearables – Virtual Roundtable (part 2)

December 30, 2020 By Jeff Shepard Leave a Comment

The second part of EEWorld’s two-part “virtual roundtable” discussion on power system design considerations for wireless IoT nodes and wearables focuses on the use of switching regulators and the associated technical challenges. Our panelists are: Florian Feckl (FF), Systems Engineer and Product Definer for Low Power Buck Converter, Texas Instruments, and Kyle Van Renterghem, (KVR) […]

Filed Under: DC-DC, FAQ, Featured, Regulators Tagged With: FAQ

Power system design considerations for wireless IoT nodes and wearables – Virtual Roundtable (part 1)

December 30, 2020 By Jeff Shepard Leave a Comment

The first part of EEWorld’s two-part “virtual roundtable” discussion on power system design considerations for wireless IoT nodes and wearables focuses on the use of low dropout regulators (LDOs). Our panelists are Kyle Van Renterghem, (KVR) Marketing & Applications Manager, Low Input Voltage LDOs, Texas Instruments, and Julian Hagedorn (JH), Systems Engineer, Texas Instruments. JS: […]

Filed Under: DC-DC, FAQ, Featured, Power Management, Regulators Tagged With: FAQ

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