Transformerless Power Supplies: Resistive and Capacitive
Transformerless Power Supplies: Resistive and Capacitive
There are several ways to convert an AC voltage at a
wall receptacle into the DC voltage required by a
microcontroller. Traditionally, this has been done with a
transformer and rectifier circuit. There are also switch-
ing power supply solutions, however, in applications
that involve providing a DC voltage to only the
microcontroller and a few other low-current devices,
transformer-based or switcher-based power supplies
may not be cost effective.
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Categories: Electrical - Electronics
