Table of Contents
TDA2030A amplifier circuit TIP41 TIP42 driver. TDA2030 + power transistors (TIP41, TIP42 or 2SC1061, 2SA761 or BD908, BD907 or BD911, BD912 or TIP31, TIP32) for an audio amplifier up to 40 Watts. Simple installation, no special settings requires and uses few components.
The amplifier is based on the TDA2030 IC and two transistors that can be (TIP41, TIP42 or 2SC1061, 2SA761 or BD908, BD907 or BD911, BD912 or TIP31, TIP32), finally you can use several pairs of transistors! The circuit around the TDA2030 is traditional to about 14-20 watts using simple supplies!
The audio output amplified by leaving the pin TDA2030 4, the transistors are active when a large flow of charge through R1 and R8 pass transistors to drive and ensure high-power output.
Requires a power supply of 18 to 35V/1.5A simple. If you want a version 2 Stereo, lots of these!
Using a monolithic audio amplifier with not properly regulated power supply. In any case of work, you should supply a supply voltage lower than the maximum value set by the IC breakdown voltage.
The TDA2030A is a monolithic IC in a Pentawatt package intended for use as a class AB low frequency amplifier.
With ,VS max = 44V, it is particularly suitable for more reliable applications without regulated power supply and for 35 W driver circuits using low-cost complementary pairs.
The TDA2030A provides high output current and has very low harmonic and crossover distortion.
The device incorporates a short-circuit protection system comprising an arrangement to automatically limit the power dissipated to maintain the operating point of the output transistors within their safe operating range.
A conventional thermal shutdown system is also included.It is essential to consider all working conditions, in particular mains fluctuations and variations in supply voltage with and without load. The TDA2030A IC (Vsmax=44V) is particularly suitable for replacing standard IC power amplifiers (with Vsmax=36V) for more reliable applications.
A regulated supply is not normally used for the power output stages because their sizing must take into account the power to deliver at signal peaks. They are not only a small percentage of the total music signal, with consequent large circuit oversizing.
Even if with a regulated supply, it is possible to get higher output power (Vs is constant in all working conditions), the additional cost and power dissipation does not usually justify its use. Using unregulated supplies, there are fewer designated restrictions. In fact, when signal peaks are present, the capacitor filter acts as a flywheel that supplies the necessary power.
Under average conditions, the continuous power supplied is less. The music power to continuous power ratio is higher concerning a regulated power supply, with space savings and cost reduction.
Performance of this amplifier, technical data TDA2030A
Schematic 40 Watts TDA2030A amplifier circuit TIP41 TIP42 driver
Printed circuit board for mounting TDA2030A amplifier circuit TIP41 TIP42 driver
Part List TDA2030 + transistors BD908/BD907 – 18W HI-FI audio amplifier and 35W driver
| Parts | Value |
| Resistors 1/4 W* 5% | |
| R1* R8* | 1.5 Ohms = 2-Watt resistor |
| R2, R3, R6 | 56k = Green, Blue, Orange, Gold |
| R4 | 1 Ohm = Brown, Black, Gold |
| R5 | 30k = Orange, Black, Orange, Gold – If you can’t use 27K + 3.3K |
| R7 | 3.3k = Orange, Orange, Red, Gold |
| Capacitors | |
| C1,C4 | 2.200µF/50V = Electrolytic Capacitor |
| C2, C5, C6 | 0.22µF = Capacitor de poliéster |
| C3 | 2.2µF/50V = Electrolytic Capacitor |
| C7 | 22µF/50V = Electrolytic Capacitor |
| C8 | 10µF/50V = Electrolytic Capacitor |
| Semiconductors | |
| D1, D2 | 1N4007 or equivalent |
| IC1 | TDA2030A – Audio amplifier integrated circuit |
| T1 | BD908 or equivalent, see text |
| T2 | BD907 or equivalent, see text |
| Connectors | |
| IN | Audio Input |
| OUT | Audio Output |
| VCC | Power supply connector |
| Miscellaneous | |
| Power supply, cooler for the IC and transistors, printed circuit board, solder, amplifier box, 50 watt 4/8 Ohms speakers. | |
Download PDF files for this assembly: PCB component side, copper side, silk, schematic, Datasheet.
Gerber added.
- Download PDF datasheet of IC TDA2030, TDA2030A
- Download PDF transistor datasheet TIP41, TIP42, TIP41, TIP41A, TIP41B, TIP41C, TIP42, TIP42A, TIP42B, TIP42C
- Download PDF transistor datasheet 2SC1061, 2SA761
- Download PDF transistor datasheet BD908, BD907
- Download PDF transistor datasheet BD909, BD911, BD910, BD912
- Download PDF transistor datasheet TIP31, TIP32, TIP31G, TIP31AG, TIP31BG, TIP31CG , TIP32G,TIP32AG, TIP32BG,TIP32CG
Buy kits TDA2030 in AliExpress with free Shipping in the Worldwide.
Scuse me Bro
Tda 2030 can repleace with lm1875 in this project?
Yes. LM1875 is more reliable and original.
Hello Saqib
Sorry I didn’t test with tda2050!
This Amplifier has no volume control how can I add volume control? and if possible LED?
Hello Ali
Volume control
Led
https://ledcalculator.net/pt#p=24&v=1.8&c=10&n=1&o=w
What software do you use to simulate the circuit in 3D?
Hello Miguel
Eagle 3D + PovRay.
Puedes dar las medidas de la placa de cobre a tamaño real???
Hola Owen
5.9 x 5.2 cm; 2.32 x 2.05 inches
Please be warned: If you use a single heatsink across the transistors and TDA2030A, the transistors MUST be isolated electrically from the heatsink. If not isolated, you will be grounding the collectors of the transistors via the heatsink.
Hello Terry
Ok thanks by warning!
Hello. If I use TDA2050 instead of TDA2030, how many watts I take from amplifier?
Hello Serhat
https://www.te1.com.br/contato/
For 2050 u will use 2050 single ic bord compunents like 22 k resistence with .47 uf and 22 u capicitor with 100 uf at supply line rest of the circuit will b same after point 4 of 2050 ic. In case of 2030 the net watt increase in 3 folds to orignal in case of 2050ic it will b 32× 3 = 96 W. But i repeat for ic compunent you will have to falow 2050 ic circuit at DATA sheet. And input line wil b change because 2030 input is in -ive volts and 2050 input is in +ive volts.
Hello. I want to build this amplifier in stereo. What can I do?
(Note: I can’t use symmetrical power supply.)
Hello Serhat
Stereo = Assemble 2!
Single power supply.
Hello is posible doing this amp using split font
Hola es posible hacer este ampli con fuente partida trafo con tap central, gracias
Hello Rodrigo
I have not tested it yet…
Plesa i cant chang replace tip41 with bd907 and replace tip42 with bd908, it that right ??
thank you so much
is it ac or dc ps did i need ac power supply or dc power supply
This circuit gives a low wattage and it heats alot. I better bridge the tda 2050
is there any problem if i use 0.22 µF Electrolytic Capacitor instead Capacitor Polyester?
C2, C5, C6
Hello Mobin
Requires solid capacitor!
Use any one between 100nF and 330nF, ceramic or polyester.
Hi
Please Please Please create tda 2040 pcb map
Tank
and Please create tda 2040 bridge pcb map 🙏🙏🙏😘😘
Hi Mohammad
You can use the layout of the TDA2030!
Thank you for the amp project Toni. I will also want to ask you about the psu of the project. Do you have one already prepared for the project or I can use an alternative one from other projects ?
It’s bad and just give you 13watts the tda2003 is Cheeper and give you more sound
Help us im geting the same proplem
hi there!!…what is the purpose of those diodes(1n4007)guys i really need an explanation asap please?..
is the picture rendered in 3D? what software made it?
I built this amp but doesn’t work… I used 12v and 18v power supply
Proven,working, my mistake…
I bult this amp with good quality components.supply voltage 35v at 4A.How ever the output is only 13watts measured into 4ohms load. The amp specifies an output of 30watts. The voltage across the 1.5 ohm resistors is only .4v,but according to your advise it should be .6v to activate the power transistors.Cud u pls adv me the problem causing the low output.I have access to oscilloscope and sine/sq signal generator. The voltage at clipping is 8v read on a vtvm..this concludes the output to be 13w…using formula W=E2/R. yOUR ADVISE IS MOST APPRECIATED
I BUILT THIS AMP AS PER CIRCUIT,BUT THE OUTPUT IS ONLY 13watts.IAM SUPPLYING 35V AT 4A POWER,BUT THE VOLTAGE ACROSS THE 1.5OHMS RESISTORS IS ONLY .4V.I UNDERSTAND IN ORDER FOR THE OUTPUT TRANS TO FIRE IT SHOULD BE AT LEAST .6V.THE IC AND THE TRANSISTORS ARE GENUINE, I GOT THEM FROM LONDON THRU A FRIEND OF MINE FROM A REPUTED DEALER.CUD U PLS ADV ME WHAT THE PROBLEM IS.ACCORDING TO THE PUBLISHER OF THE ORIGINAL CIRCUIT IT SHOULD DELIVER 30W INTO 4OHMS LOAD.I AWAIT YOUR ESTEMED ADVISE..MTKS
Hi there! has anyone built this one? is it verified?
I want to built this, but i need to know if its really a good hifi amp and if it works fine too.
Thanks!
can we use tda2050 in plase of tda2030.is it possiale if yes what the output wattage
u can use tip2955 n 3055 aswell