TDA2030A amplifier circuit TIP41 TIP42 driver

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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.

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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

40 Watts Transistor Amplifier Tda2030

Schematic 40 Watts TDA2030A amplifier circuit TIP41 TIP42 driver

 Tda2030A Amplifier Circuit Tip41 Tip42 Driver
Tda2030A Amplifier Circuit Tip41 Tip42 Driver

Printed circuit board for mounting TDA2030A amplifier circuit TIP41 TIP42 driver

 Tda2030A Amplifier Circuit Tip41 Tip42 Driver Pcb
Tda2030A Amplifier Circuit Tip41 Tip42 Driver Pcb
Tda2030 + Transistors Bd908/Bd907 – 18W Amplifier Pcb Component View
Tda2030 + Transistors Bd908/Bd907 – 18W Amplifier Pcb Component View Tda2030A Amplifier Board
Tda2030 + Transistors Bd908/Bd907 – 18W Amplifier Pcb Component Silk
Tda2030 + Transistors Bd908/Bd907 – 18W Amplifier Pcb Component Silk Tda2030A Amplifier Board

Part List TDA2030 +  transistors BD908/BD907 – 18W HI-FI audio amplifier and 35W driver

PartsValue
Resistors 1/4 W* 5%
R1* R8*1.5 Ohms = 2-Watt resistor
R2, R3, R656k = Green, Blue, Orange, Gold
R41 Ohm = Brown, Black, Gold
R530k = Orange, Black, Orange, Gold – If you can’t use 27K + 3.3K
R73.3k = Orange, Orange, Red, Gold
Capacitors
C1,C42.200µF/50V = Electrolytic Capacitor
C2, C5, C60.22µF = Capacitor de poliéster
C32.2µF/50V = Electrolytic Capacitor
C722µF/50V = Electrolytic Capacitor
C810µF/50V = Electrolytic Capacitor
Semiconductors
D1, D21N4007 or equivalent
IC1TDA2030A – Audio amplifier integrated circuit
T1BD908 or equivalent, see text
T2BD907 or equivalent, see text
Connectors
INAudio Input
OUTAudio Output
VCCPower 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    Mirror

Buy kits TDA2030 in AliExpress with free Shipping in the Worldwide.

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36 thoughts on “TDA2030A amplifier circuit TIP41 TIP42 driver”

  1. 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.

    Reply
    • 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.

      Reply
  2. Hello is posible doing this amp using split font
    Hola es posible hacer este ampli con fuente partida trafo con tap central, gracias

    Reply
  3. 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 ?

    Reply
  4. 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

    Reply
  5. 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

    Reply
  6. 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!

    Reply

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