Kipas Otomatis
Sirkuit ini dirancang untuk secara otomatis mengaktifkan satu set tiga atau empat kipas DC kecil untuk mendinginkan heatsink untuk power supply 10 Amp. Dapat digunakan dalam berbagai aplikasi lain juga, seperti Power Amplifier. Jika membutuhkan kipas yang besar tinggal memodifikasi transistor peggerak relaynya.
Part |
Description |
Radio Shack |
Digi Key |
Newark |
Notes |
IC1 |
LM741 Op-Amp |
276-007
|
LM741CN-ND
|
LM741CN
|
NE741,µA741,
etc. |
Q1 |
2N2222A
transistor |
276-2009
|
2N2222A-ND
|
2N3904
|
See
text |
D1 |
1N4148
Diode |
276-1122
|
1N4148GICT-ND
|
1N4001
|
1N4001,
or others |
Th1 |
50K
Thermistor |
|
KC005T-ND
|
96F3309
|
KC005T
in prototype |
Re1 |
12V
Relay |
275-249
|
Z753-ND
|
83F8057
|
RS
is 1A |
R1 |
15K,
5% resistor |
|
|
84N2487
|
brown-green-orange
|
R2,R5 |
10K,
5% resistor |
|
|
84N2479
|
brown-black-orange |
R3 |
150K,
5% resistor |
|
|
84N2485
|
brown-green-yellow |
R4 |
4K7,
5% resistor |
271-1330
|
|
50N1628
|
yellow-purple-red |
R6 |
1K,
5% resistor |
271-1321
|
|
50N6012
|
brown-black-red |
R7 |
1K8,
5% resistor |
|
|
|
brown-gray-red |
P1 |
100K
Trimmer Pot |
|
|
|
Bourns |
C1 |
10uF/25V
Capacitor |
|
|
|
Electrolytic |
C2 |
0.01uF,
Capacitor |
|
|
|
Ceramic
|
Led |
Red,
3mm |
|
|
|
Light
Emitting Diode |
Sumber: Tony Van Roon
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