This is 0-24VDC digital PIC power supply circuit. This variable power supply controlled with PIC microcontroller. There is LCD display in this circuit which will show the actual value of power supply output. This power supply use push on switch to adjust the output voltage and current value. Schematic Diagram: Component List : C1 = 2000uF per AMP, 40V (adjust capacity to power supply amps) C2,C3,C12,C15,C18,C21 = 0.1uF CER C4 = 0.01uF CER C5A,C5B,C5C,C5D = 0.01uF CER C6,C7 = 0.05uF CER C8 = Not used C9,C11,C19,C20 = 1uF CER C10 = 470uF 15V EL RADIAL C13 = 4.7µF 50V EL RADIAL C14 = 0.001uF CER C16,C17 = 22pF CER D1,D2,D4,D5 = 1N4148 D3 = 1N4004 Br1 = 1<10A BRIDGE RECTIFIER (adjust seize to power supply amps) DZ1 = 1N4751 30V ZENER IC1 = LM317KCS TO220 IC2 = LM337LZ TO92 IC3 = LT1491CN special HV opamp, do not substitute IC4 = PIC16F876A Q1 = 2N3906 Q2A to Q2D = TIP142TU 1 to 5 transistors (adjust quantity to power supply amps) Q3A to Q3D = 2N3904 (adjust quantity to power supply am...