بسم الله الرحمن الرحيم
اليكم التصميم الكامل لدائرة باور
Parts List:
Resistors:
All resistors are 1/4W unless otherwise indicated
R1 = 1K2 RV1,RV2 = 5K
R2 = 7K5 RV3 = 500 ohm
R3 = 15K RV4 = 100K
R4 = 160 Ohm P1 = 50K, Bourns, 10-turn potentiometer
R5,R6 = 0.22 ohm, 5W P2 = 500 ohm potentiometer
R7 = 10K, 1W
R8 = 180K
R9 = 330K, 1W
Note: R5 and R6 are "wire-wound" types
Capacitors:
C1,C2 = 2200uF, 100V, electrolytic
C3 = 1500uF, 50V, electrolytic
C4,C7 = 0.1uF, 25V, ceramic
C5 = 10pF, 25V, ceramic
C6 = 240pF, 25V, ceramic
C8 = 100uF, 100V, electrolytic
C9 = 22nF (0.022uF), 100V, polyester or similar
Semiconductors:
D1-D8 = 1N4007
Br1 = 6A, 200V Bridge Rectifier, KBPC102 or similar
Br2 = 1A, 50V Bridge Rectifier, MDA100A or similar
Q1 = TIP31C, NPN power transistor, TO-220 (NTE184)
Q2 = 2N6385, NPN power transistor, TO-3 (NTE245)
IC1 = MC1466L, precision regulator IC, 14-pin DIL (no known substitute)
Led1 = LED, your choice on/off indicator
Miscellaneous:
T1/T2 = Transformer with two windings; 17VAC/300mA, and 36VAC/3A (JS-92-096)
(or two separate transformers, but will take more space)
S1 = SPDT, Power on-off switch (the Led1 for on/off can be part of S1)
J1,J2,J3 = Binding posts, one Red (+), one Black (-), one green (Gnd.)
Knobs = 2 knobs for voltage and current potentiometers
موضوع: Precision Power Supply 
