Power Semiconductors

October 2023
PSDcast – Preventing Early Failure Rates

Littelfuse’s Martin Schulz

Why are power semiconductors limited in their service life and what are some of the biggest contributing factors to early failure rates? Littelfuse’s Martin Schulz is on the call.
Date:
10/16/2023
Flexible, Dual Output, 6-Phase Buck Controller Drives 12 V to 1.0 V/200 A Core Supply with 90.0% Efficiency

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Figure 1. Schematic of a 6-phase 1.0 V/200 A LTC7852 converter with FDMF5820DC DrMos. The FSWITCH = 400 kHz.

ASICs, FPGAs, and processors in high-performance communication, servers, and computing systems require core power supplies that can produce voltages of 1.0 V (or less) directly from a 12 V or intermediate bus—with maximum load currents sometimes above 200 A. These supplies must meet stringent efficiency and pe
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Date:
10/01/2023
Multi-Dimensional MOSFET Modeling With Interactive Datasheets

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Figure 1: Reading MOSFET RDS(on) from a standard datasheet

Datasheets are often long and cumbersome, meaning locating and interpreting the required information is not always trivial. Furthermore, the meaning of the listed parameters is rarely explained in the datasheets, and even the slight differences in how they are interpreted can be critical for how a device behaves in
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Date:
10/01/2023
All You Need to Know About Using IGBTs

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Figure 1: Field Trench Stop IGBT Structure

The medium-to-high power applications that used IGBTs still exist, as do the devices themselves. In this article we will take a detailed look at IGBTs and then consider existing and emerging topologies that they are suitable for. IGBTs: Physical Structure An IGBT is a semiconductor transistor, or semiconductor swit
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Date:
10/01/2023

 

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