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Analog Circuit Design Volume Three by John Hamburger, Bob Dobkin

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Chapter 185

Isolated converters have buck simplicity and performance

Kurk Mathews

Abstract

The LTC3706 secondary-side synchronous controller and its companion smart gate driver, the LTC3725 are described. These two devices work together to make possible the creation of an isolated forward converter with the simplicity and performance of a buck converter.

Keywords

LTC3706

LTC3725

isolated forward converter

Buck converter designers have long benefited from the simplicity, high efficiency and fast transient response made possible by the latest buck controller ICs, which feature synchronous rectification and PolyPhase interleaved power stages. Unfortunately, these same features have been difficult or impossible to implement in the buck ...

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