Simple PWM Boost Converter With I/O Disconnect Solves Malfunctions

摘要

Boost power converters have been widely used for Power Factor Correction (PFC) in ac-dc conversions [ 1 ] and for power management in battery powered dc-dc conversions[2]. Moving beyond low-power applications, such as cellular phones, smart phones and other portable electronic products, boost converters are being used more and more in medium-power applications. For example, in computing and consumer electronics, boost converter-based LED drivers for notebook displays, LCD TVs and monitors have been developed[3], [4], In communications and industrial products, simple boost converters are used in satellite dish auxiliary power supplies and peripheral card supplies[5].