Fully-digital switch mode AC/DC converter features two power stages

27-02-2015 | Mouser Electronics | Power

Consisting of two power stages, STM's STEVAL-ISV147V2 digital switch mode
AC/DC converter is now available from Mouser stock. The two stages are an
input semi-bridgeless power factor corrector (SBPFC) controlled by an
STM32F051K8, and a regulation stage implemented with a LLC half-bridge with
synchronous rectification (SR), controlled by an STM32F334C8
microcontroller.

The 500W AC/DC converter uses the bridgeless PFC topology which has the
advantage of lower conduction losses and higher efficiency by eliminating
the need for a diode rectifier stage.

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