CA3140 power supply

I decided to use a CA3140, because the input voltage is high and the input voltage may be below the negative supply. Therefore I can use them in a power supply with only 1 DC input voltage. In the datasheet of the CA3140, a design is given, only the used current limiter is not linear (and just building that circuit was not so much fun). Voltage regulation Measuring current Current regulation Final notes and better designs

• A CA3140 based power supply, using 2 CA3140 opamps. It was designed by some members of the Dutch electronics forum Circuitsonline. A small improvement is given here (Dutch)
• Elektor  power supply from 1982
• ELV power supply
• LM324 power supply, design similar with mine.