Inspired by techplanet's circuit, this PSU is a slim version of his already fantastic circuit. Current source is standard PAL format (220VAC 50Hz).Output is 12VDC. The values are all calculated to keep the output current between 12.1 and 19.9 volts, the best result i could achieve by tuning the NPN-based regulator. Amperage tuning is done by changing resistance of the first resistor. Actually it's set on 100mA.
Thanks to hurz for useful tips!
