Phase Shifted Full-Bridge components

SMPS: Phase-Shifted Full-Bridge Converters

Phase-shifted full-bridge (PSFB) converters are used to step down high DC voltages and to provide isolation in medium to high power applications (> 1000 W). PSFB converters are similar to conventional full-bridge DC-DC converters, but with a phase shifting control. The phase shift full-bridge converter can achieve soft switching by phase-shifting the gate signals...

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SMPS: Symmetrical Isolated Converters

The previous article in our series on switched-mode power supplies (SMPS) covered asymmetrical isolated converter topologies. Now we will investigate several symmetrical isolated converters along with their advantages and disadvantages for different applications. Symmetrical converters require an even number of switches. The full available flux swing in both quadrants of the B-H loop is used, thus...

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SMPS: Asymmetrical Isolated Converters

The previous article in our series on switched-mode power supplies (SMPS) covered non-isolated converter topologies. Now we will investigate isolated converters, starting with asymmetrical converter topologies. Isolated Converter Overview Isolated topologies in switched-mode power supplies use a high frequency transformer as an isolator between the switching element and output. Depending on the transformer turns ratio,...

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SMPS : Non-Isolated Converters

Our previous article on switched-mode power supplies covered the basics of power conversion and outlined the key differences between switched-mode and linear power supplies. We also established that there are two main categories of SMPS topologies: non-isolated converters and isolated converters. In this article, we will take a closer look at non-isolated converter topologies. Buck Converter (Step-down) As...

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Intro to Switched-Mode Power Supplies (SMPS)

Switched-mode power supplies (SMPS) are fairly complex compared to linear regulated power supplies. But this complexity results in a stable, regulated DC supply that can deliver power more efficiently for a given size, weight and cost.This article is the first in a series on switched-mode power supplies, their various topologies, benefits, and applications. Introduction: Power...

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