An uncomplicated block diagram (a) conceals the TL431's internal complexity, but you need only three external resistors to use the TL431 in a basic shunt-regulator circuit (b)

AutoresMichael O'loughlin
Documento principal «Shunt regulator eases power-supply-start-up woes»
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An uncomplicated block diagram (a) conceals the TL431's internal complexity, but you need only three external resistors to use the TL431 in a basic shunt-regulator circuit (b)