LP120 Power Supply

This schematic is a possible low-cost power supply. If you already have a +5VDC power supply with the required current capacity (see the LP120 specs), you may not need another supply. Measure the rectified DC voltage at the input to the +5V regulator. If it's in the right range, simply tap into this voltage for Vfw. You can also use a regulated +15V supply for Vfw.

schematic

[ Back ]