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:

Layout

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

Car Amplifier Circuit 2 x 30 W stereo

General description:
The TDA8566 is an integrated class-B output amplifier which is available in several packages. TDA8566TH is contained in a 20-lead small outline plastic package. The TDA8566TH1 is a 24-lead small outline plastic package which is pin compatible with the I2C-bus controlled amplifier TDA1566TH for one board layout. TDA8566Q is a 17-pin DIL-bent-SIL package. The device contains 2 amplifiers in a Bridge-Tied Load (BTL) configuration. The output power is 2 × 25 W in a 4 Ω load or 2 × 40 W in a 2 Ω load. It has a differential input stage and 2 diagnostic outputs. The device is primarily developed for car radio applications.

Features:

• Differential inputs
• Very high Common Mode Rejection Ratio (CMRR)
• High common mode input signal handling
• Requires very few external components
• High output power
• 4 Ω and 2 Ω load driving capability
• Low offset voltage at output
• Fixed gain
• Diagnostic facility (distortion, short-circuit and temperature pre-warning)
• Good ripple rejection
• Mode select switch (operating, mute and standby)
• Load dump protection
• Short-circuit proof to ground, to VP and across the load
• Low power dissipation in any short-circuit condition
• Thermally protected
• Reverse polarity safe
• Protected against electrostatic discharge
• No switch-on/switch-off plops
• Low thermal resistance
• TDA8566TH1 is pin compatible with TDA1566TH

Circuit Diagram:

Car Amplifier Circuit 2 x 30 W stereo