If you need to build the amplifier circuit for your home. The TDA2030 Audio Amplifier Circuit may be the best choice.
Why?
Because it is a cheap IC and easy to use. Suitable for beginners thought will build the electroacoustic to listen to yourself.
These projects use IC of SGS company TDA2030.
TDA2030 Datasheet
Which the SGS said that it is a great power amplifier IC on 5 pins form. And, setting a circuit on a class AB power amplifier.
The TDA2030 has high output current and very low harmonic and crossover distortion.
Also, This device has the short-circuit and the too high-temperature protection system.
As we experiment to build this project and listen to the sound quality nice. We turn the high volume for several hours. The TDA2030 is not hot or just warm. So, suitable for beginners to build this circuit to listen with yourself.
Technical Specifications
- Maximum voltage supply used of +/- 18VDC
- Begin working at the minimum voltage of +/- 6VDC
- Power driver output 14W at 4Ω and 9W at 8Ω
- The maximum current of 900mA
- Frequency response range 10HZ-140KHz at -3dB
TDA2030 Pinout
I like this IC. Because it looks like transistor on TO-220, mini size. So, it is so easy to install on a heatsink.
Look at a pin connection of top view. The tap connects to -Vs pin.
Look at the typical Application circuit diagram.
Also, you look at its circuit symbol pin connection below.
The TDA2030 integrated circuit is the best choice to make a good audio amplifier circuit. It is used to make many amplifier outputs 10 watts to 200 watts.
And a lot of types, Mono or Stereo, OTL, OCL, BCL (Bridge amplifier).
For Example, the super Bridge 120 Watts—I love it. Because of small, easy using, and cheap.
For Example TDA2030 Circuits
Are you interest in it? Let’s see we can apply it to what circuits.
1# Small Versatile Power Amplifier, 12W OTL
The multi-purpose Amplifier using TDA2030 circuit. It has power 8W(RMS) at 8Ω loudspeakers.
It has low noise be valuable THD (Total harmonic distortion) 0.1%.
When friends use Power supply Voltage Source 28V at 4Ω loudspeakers. It has the output power of 12W.
But be high class the noise increases to are 2 times.
Besides still three be usable with Volt supply about 9V. But there is the electric power is down respectively.
The VR1 use for the Volume popularity level of a sound signal.
If you cannot find a 22K potentiometer. You can use 50K instead.
See next circuit are better.
Recommended: Do you want higher output power than this?
Use TDA2050
2# Mini 15W OTL Power Amplifier with PCB
This is the main power amplifier of 15W OTL at 8Ω loudspeakers.
You should use power supply at least 24V 1A for MONO.
15 watts Audio Power Amplifier
It is specified with the PCB layout you can try to build this project.
PCB of 15W OTL Power Amplifier using TDA2030
Components list
IC1: TDA2030 18W hi-fi amplifier and 35W driver
D1, D2: 1N4001, 50V 1A diodes
Capacitors
C1, C7: 2.2uF 50V Electrolytic
C2: 22uF 25V Electrolytic
C6: 2,200uF 25V Electrolytic
C5: 0.1uF 50V Ceramic
0.25W Resistors tolerance: 5%
R1, R2, R3: 100K
R4: 4.7K
R6: 1Ω
3# 14W TDA2030 Stereo amplifier circuit
This is a TDA2030 stereo amplifier circuit. It is a special project.
Because it is an OCL type amplifier.
Which provide power driver of 14 watts/channel at load 4 ohms.
So, it is suitable for beginners thought will build electroacoustics to listen to themselves.
This project use IC of The SGS company number TDA2030.
Which SGS said that TDA2030 is a power amplifier IC in 5 pins form.
The Setting circuit on a class AB power amplifier to the output of the high harmonic distortion and low crossover.
They are ready, shock output protection, and the temperature is too high, complemented within the integrated circuit.
As we listen to the sound quality nice. We turn the volume fully to several hours. The IC is not hot. Or just warm. so, suitable for beginners to build this circuit to listen with yourself.
Technical Specifications of IC-TDA2030
- Maximum voltage supply used of +/- 18VDC.
- Begin working at a minimal voltage of +/- 6VDC.
- Power driver output 14 watts at 4 ohms and 9 watts at 8 ohms.
- The maximum current of 900mA.
- Frequency response range 10HZ-140KHz at -3dB.
How this circuit works
In the circuit, the figure is a single channel amplifier. You will see that have very few parts. Both pin 1 and pin 2 of IC-TDA2030 input.
The pin 1 is non-inverting input and pin 2 is inverting input. Then input of power amplifier comes to C1 into pin 1 of IC.
- The R3 determines the input impedance of the IC.
- Pin 3 is -VCC leg or negative voltage, and pin 5 is a +Vcc or positive voltage.
- Four capacitors C3, C4, C5, and C6 are bypass filter voltage +Vcc and -Vcc.
- R1 as acts adjust the gain of IC with a negative feedback form. If R1 has higher resistance. Then, the gain rate of IC rises up as well.
- The R4 and C7 are protectors a oscillated high frequency.
How to build
First of all, you need to have all components list below.
Parts you will need
MONO form
IC1: TDA2030 18W hi-fi amplifier and 35W driver
D1, D2: 1N4007, 1000V 1A diodes
D3-D6: 1N5402, 200V 3A diodes
Capacitors
C1: 1uF 50V Electrolytic
C2: 22uF 16V Electrolytic
C3, C6: 100uF 25V Electrolytic
C4, C5: 0.1uF 50V Mylar
C7: 0.18uf 50 Mylar
C8, C9 1000uF 25V Electrolytic
0.25W Resistors tolerance: 5%
R1, R3: 24K
R2: 680Ω
R4: 1Ω
Others
PCB, Heatsink, etc.
Note: You may buy components at electronics stores here.
Then make a PCB as figure 2. Next solder all components on PCB as Figure 3.
Copper PCB layout of TDA2030 stereo amplfier
Components layout
You need to put all parts correctly on PCB. Even You need to be careful putting the polarity of the electrolytic capacitors and Diodes right ways.
Recommended:
Full wave rectifier diodes
In the component layout, use both full wave rectifier diode that has three lead. For positive has K A K
And negative has A K A lead. It may be an old part. So you can apply two diodes connection as below circuit diagram.
How to install TDA2030
The IC is the final sequence. You should install with a heat sink first. Then, Solder it on PCB. Because of if soldering IC first. The Holes between the ICs and the heat sink may be mismatched.
When all things are complete. Then, connect the speakers to the output. And connect the ACV of transformer current at least of 2A, ACV 12V CT 12V or 15V CT 15V, One or the other to the power connector terminal.
Testing
Our amplifiers are ready to test. We use a finger, touch input on both. It will noise of the hum out of the speakers. That sound is good. Then, use a good quality tone controls. To test the complete sound again.
4# 120 watts Subwoofer Power Amplifier
5# 30 watts TDA2030 transistor Amp with PCB
6# TDA2030 Bridge Amplifier circuit, 35 watts
If you want a higher sound than only one. You can use this circuit. We called the TDA2030 Bridge amplifier. It is direct coupling to a speaker to be like OCL amplifier. But uses two ICs and more current in Still using the same voltage. Continue reading
You may like these circuits, too.
More external circuit ideas
TDA2030 Audio Amplifier Circuits
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