KOMPONEN ELEKYRONIKA

1. Teknik Audio
Oleh : DRS.YOPI SOEPRIYONO
SMK Negeri 4 Jakarta

2. Dasar Audio
Satuan Listrik
Satuan Ukuran untuk Besaran Simbol
Volt
electrical
"pressure"
Tegangan V
Ampere
the flow of
electrons
Arus A, I
Watt power W, P
Ohm
resistance to
current flow R
Ohm
impedance,
reactance
X
Farad capacitance F, C
Henry inductance H, L
Hertz frequency Hz

3. Tipe Penguat (Amplifier)
 Penguat Tegangan (Voltage Amplifier)
Penguat Tegangan memperkuat Tegangan input biasa menggunakan
konfigurasi Common Base
 Penguat Arus ( Current Amplifier )
Penguat Arus memperkuat Arus biasa menggunakan konfigurasi Common
Collector
 Penguat Daya ( Power Amplifier )
Kombinasi dari keduanya ,mampu memperkuat arus maupun tegangan , biasa
menggunakan Common Emitor

4. Simbol dan Wiring

5. Rumus-rumus Dasar
Hukum Ohm :
R = V / I , V = I . R dan I = V/R
Daya :
P = V . I , P = I 2. R dan P = V2/R
Reaktansi :
Xc = 1 / (2 * π * f * C)
XL = (2 * π * f * L)
Decibell (dB) :
dB = 20 * log (V1 / V2)
dB = 20 * log (I1 / I2)
dB = 10 * log (P1 / P2)
Frekuansi Cuttoff :
Fc = 1 / (2 * π * R * C)

6. Transistor

7. Jenis transistor Power

8. Penguat Transistor

9. Konfigurasi Penguat

10. Konfigurasi Penguat

11. Prategangan Transistor ( Bias )
Bias Basis ( Base bias)
Bias Umpan balik kolektor ( Collector Feedback Bias )
Bias Pembagi Tegangan ( Voltage Devider Bias )

12. Penguat FET dan MOSFET

13. Push Pull amplifier

14. Push Pull amplifier 2

15. Push Pull amplifier 3

16. LOUDSPEAKER ACTIVE
TV
Tone
Cantrol
VCD
Driver
Catu Daya
Amplifier
DIAGRAM BLOK
HASIL AKHIR

17. SKEMA LOUDSPEAKER ACTIVE
680 pF
100n
4K7
VOLUME
BALANCE
1K
22K
1K
TREBLE
BASS
1K5
1M
2K2
10K
10K
Q1
C945
10uF/25V
3n9
15n
5K6
1K
1000 uF/25 V 100n
1uF/25V
1uF/25V
470
10uF/25V
220n
1 Ohm
100n
1 Ohm
100n
22n
22n
2200uF/25V
TDA
2004
IC 1
1
5
7
9
11
8
10
2
4
6
DC
12 V - 15 V
LS
+
-

18. Rancangan BOX dan Panel
20 Cm
8
cm POWER
VOL BAL TREBLE BASS
LOUDNES
HiFi 80 W ACTIVE SPEAKER
50 cm
24 cm
2
6
c
m
Ø 2,5”
Ø 5 cm
Ø 6 “
8
cm
20 cm
8
cm
19,3
cm
10,7
cm
PANEL CONTROL
PANEL CONTROL
GAMBAR
RANCANGAN BOX

19. Power ampli 60 Watt

20. 20 Watt Power Amp

21. Catu daya simetris

22. Gambar rangkaian dan ICnya

23. 50 watt power amplifier

24. Ic lm 3876

25. OTL 40 Watt Power Amp

26. Catu daya non simetris
untuk OTL power amplifier

27. OCL 50 watt

28. Pcb layout

29. OTL 35 Watt

30. PA Gitar

31. Power Ampli TDA 2005

32. Stereo HIFI Mungil

33. Pre-Amp
Preamp Head Tape Pick Up Mic Aux1
X C:500 pF R:47 k R:47 k R:47 k
R1 810 1k 1 k 1 k
R2 12 k 560 k Hub. Singkat Hub. Singkat
R3 330 k 56 k 100 k 10 k
C2 22 uF 47 uF 47 k 47 uF
C3 - 6,8 nF - -
C4 10 nF 1,5 nF 100 pF -

34. Tone Control

35. Power Amplifier TA7230A

36. Power Amplifier

37. Pre Amp Head
Daftar Komponen
R1 = R5 = 56k C2 = C6 = 1,5nF
R2 = R6 = 2,2M C3 = C7 = 22uF/10V
R3 = R7 = 270 ohm C4 = C8 = 1uF/25V
R4 = R8 = 330k C9 = C10 = 4,7uF/25V
R9 = R10 = 100k IC = LM387

38. Catu Daya

39. Catu Daya Variable

40. Preamp Gitar

41. Pemasangan Heatsink

42. Pemasangan Heatsink

43. Penguat Operasional (Op-Amp)

44. Jenis Konfigurasi Pin :
Non-Inverting Amplifier :
Single Op-Amp
Dual Op-Amp
Quad Op-Amp
Inverting Amplifier :

45. Penguat Op-Amp
Av = (Rfb1 + Rfb2) / Rfb2 Av = Rfb / RinX

46. Buffer Amplifier

47. Balaxandall Tone Control
Fb0 = 1 / (2 * π * C * Rv) ... where C is the cap across the pot, and Rv is the pot value
Fb1 = 1 / (2 * π * C * Rs) ... where C is the cap, and Rs is the series resistance to the pot
These give (again, respectively) ...
Fb0 = 1 / (2 * π * 47nF * 100k) = 33 Hz
Fb1 = 1 / (2 * π * 47nF * 22k) = 154 Hz
The treble is a little trickier, since there is an interaction with the bass control
due to the bass feed resistance from the bass pot wiper.
In theory the frequency is determined by
Ft = 1 / ( 2 * π * C * Rb)

48. Gyrator ( Simulator L)
L = C1 * R1 * (R2 - R1)
F = 1 / (2 * π * √(LC)) Hz

49. Schmitt Trigger Oscilator
X = R3 / (R2 + R3)
Fo = 1 / (2 * R1 * C1 * loge ((1 + X) / (1 - X))
Frekuensi Untuk rangkaian Oscilator di atas adalah :
X = 100 / 200 = 0.5
Fo = 1 / (2 * 100k * 10nF * loge (1.5 / 0.5))
Fo = 1 / (0.002 * loge (3))
Fo = 455 Hz

50. Phase Shift Oscilator
Fo = √ 6 / (2 * π * C * R)