Transformerless Powersupply for PIC and Small Motor
Transformerless Power Supply via Capacitive "bleed"
isolated 120 VAC to 5VDC using triac optocoupler
Regulators@ or Switching Regulators@
Wagners "switch the primary" idea for a high current, somewhat regulated powersupply
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<A HREF="http://www.piclist.com/techref/power/actodc.htm"> AC to DC Power Conversion</A>
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