Thursday, August 28, 2014
30W Power Audio Amplifier Circuit Diagram
Description:
TIP141 si a npn silicon power darling tons designed for complementary use with TIP145, TIP146 and TP147. Can stand up to 125 W at 25°C Case Temperature, 10 A Continuous Collector Currentand has a minimum hFE of 1000 at 4 V, 5 A. This home audio amplifier can output 30W with a +- 32V symmetric power supply. If you want a stereo power amplifier please check out the other schematics.
Features:
Circuit diagram:
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiukjLoa4rwsNBp-ZHKo6aj4LS-vfHXNvawyjQdj3qaim3lzCqWcO1WNBzviVQLi_Fibl6cfKxv3dG8ry4mk-yYJvGmax2AfIU0vNzhcl29goA2uhOsViTocwNRcGHCQxrKdUk2TTsc0q0/s1600/30w-audio-amplif.png)
Layout
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgrBEIplPupbS2oehoeE9yigyjOsBIvSe_sGgHa6QpDCk9mxikvccrmg8csxrtep2_pCrrzaOf6XjU03beNjRUzc86Lfd6Yf5xvPy7yHWiGxoXEzmx4Fj__hwSlte95SbxaEl03T-mW6GU/s1600/30w-audio-amplif-pcb.png)
Partlist
R1=1Kohm | R16-17=270ohm | D1=9.1V 0.4W zener |
R2=47Kohm | R18=22ohm 1W | D2-3=1N4148 |
R3=1.5Kohm | R19=NC | Q1-2=BC550C |
R4-5=10Kohm | R20-21=0.39ohm 4W | Q3=MPSA56 |
R6=5.6Kohm | TR1=250ohm trimmer | Q4=BC547B |
R7=10ohm | C1=470nF 100V MKT | Q5=BC212 |
R8=47Kohm | C2=1nF 100V MKT | Q6=BC183 |
R9=560ohm | C3=68pF ceramic | Q7-8=MPSAO6 |
R10-11=8.2Kohm | C4-8=22nF 100V MKT | Q9=TIP141 |
R12-15=120ohm | C5-6-7=100nF 100V MKT | Q10=TIP146 |
R13=680ohm | C9=47uF 25V | F1-2=1.6AT FUSE |
R14=330ohm | C10-11=220uF 63V | All the resistors is 1/4W 1% except quote differently |
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