Skip to main content


Showing posts with the label 30w Amplifier

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 PartlistR1=1KohmR16-17=270ohmD1=9.1V 0.4W zenerR2=47KohmR18=22ohm 1WD2-3=1N4148R3=1.5KohmR19=NCQ1-2=BC550CR4-5=10KohmR20-21=0.39ohm 4WQ3=MPSA56R6=5.6KohmTR1=250ohm trimmerQ4=BC547BR7=10ohmC1=470nF 100V MKTQ5=BC212R8=47KohmC2=1nF 100V MKTQ6=BC183R9=560ohmC3=68pF ceramicQ7-8=MPSAO6R10-11=8.2KohmC4-8=22nF 100V MKTQ9=TIP141R12-15=120ohmC5-6-7=100nF 100V MKTQ10=TIP146R13=680ohmC9=47uF 25VF1-2=1.6AT FUSER14=330ohmC10-11=220uF 63VAll 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.


Differential inputsVery high Common Mode Rejection Ratio (CMRR)High common mode input signal handlingRequires very few external componentsHigh output power4 Ω and 2 Ω load driving capabilityLow offset voltage at outputFixed gainDiagnostic facility (distortion, short-circuit and temperature pre-warning)Good ripple rejectionMode select switch (ope…