AC to DC Power Conversion

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

See also:

• http://www.teslaco.com
• Switching Power Supply Design, 2nd Ed. by Abraham I. Pressman. This is a fairly painless introduction that covers the basics from the Buck & Boost topologies, to Push-Pull, Half&Full Bridge, Flyback. Transformer design for each type is discussed. There is also one chapter on transformer design by itself. Other  Miscellaneous topics applicable to SMPS are also discussed, including a little bit on RCD snubbers. There is also a section that shows many waveforms associated with different SMPS topologies, taken from an oscilloscope. A great tool for debugging your first SMPS
• Switchmode Power Supply Handbook by Keith Billings. This is a much more advanced book. It discussed the same basic concepts, but at a much more technical level.

Archive:

• [EE] Power Supply Project 30V 3A variable V and I supply
  • http://www.electronics-lab.com/projects/power/003/ with amendments from Jinx:
  • http://home.clear.net.nz/pages/joecolquitt/30V_mods_notes.gif
  • http://home.clear.net.nz/pages/joecolquitt/30V_mods1.gif
  • http://home.clear.net.nz/pages/joecolquitt/30V_mods2.gif
  • http://home.clear.net.nz/pages/joecolquitt/30V_mods3.gif
  • http://home.clear.net.nz/pages/joecolquitt/30V_mods4.gif

Questions:

• icannellcsmltd at aol.com asks: " where can I get dc - ac converters 50vdc - 230vac approx 2.5amps?" +

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