Multi-purpose Amplifier using TDA2030 Circuits

This The multi-purpose Amplifier using TDA2030 circuit. It is have power 8 watt (RMS) at 8 ohm loudspeakers. It is have low noise be valuable THD (Total harmonic distortion) 0.1% , When friends use Power supply Voltage Source 28 Volt at 4 ohm loudspeakers have output power 12Watt. But be high class the noise increases to are 2 times. Besides still three be usable with Volt supply about 9Volt , but there is the electric power is down respectively. The VR1 use for Volume popularity level of sound signal. By if a friend can’t seek 22K values use 50K values can replace. For other detail about the integrated circuit TDA2030 IC and other , friends see in the circuit better yes.


The multi-purpose Amplifier using TDA2030

———————————– See pcb layout below —————————————–

General Purpose Power Amplifier using TDA2030

This is Power Amplifier Genneral Purpose circuit,main part is IC TDA2030.
It is OTL Amp 10W RMS at 8ohm.

General Purpose Power Amplifier using TDA2030

———————————– See pcb layout below —————————————–

Hi-Fi audio amplifier by ic TDA2003

This is the Hifi power amplifier circuit, will be used TDA2003 ic number. The normal operation of the integrated circuit,the music amplifier for car audio radio sound.Which it uses the supply voltage from 12 volt car battery.But this circuit adapted for use at home by listening to change power supply to 15 volts.

This allows a higher watt power than the existing 3watt RMS.The TDA2003 IC is protected from damage and short circuits,When the load over.Maximum Voltage of 28 volts, the frequency response 40 Hz – 15 kHz.

When entering the power supply 15 volts to the circuit. The C1 coupling audio signal through the VR1 to adjust the volume.Then sent to the C2 anti-noise DC input signal to the pin 1 of IC.The non inverting amplifier circuit is a non-return phase.This is the signal output pin 4, by a C5 enhances the stability of low-frequency response the better.And noise will be dropped down to ground by R4 and C6 before output to speakers.Another part of the output signal, which is fed back through C3, and R1, to enter the pin 2 inverting.To maintain a constant frequency response at-3dB.And if you want to add. Frequency response is to reduce the C3.The C8 is a filter file before the operation.C7 cut out noise from the supply.If you want a stereo amplifier,Is to create an additional set.

———————————– See pcb layout below —————————————–

TDA2030 Power Amplifier, OTL 15W

TDA2030 Power Amplifier, OTL 15W

PCB of 15-watt OTL Power Amplifier using TDA2030
PCB of 15-watt OTL Power Amplifier using TDA2030

The TDA2030 be the integrated circuit amplifies that highly popular the one number. From this circuit be power amplifier OTL. The electric power about 15W when use 8ohm loudspeakers. But must use power supply the size is appropriate with in this case should use 24V 1A. I have model PCB for the convenience of friends with. Request have funTDA2030 Amplifier OTL 15W , please sir.

2.1 Channel TDA2030A+NE5532 Stereo Pre-Amplifier Amp Audio Board


This Post Has 14 Comments

  1. Nice amp ,music power is about 17W at 4 ohm 6” 2-way speakers with nice sound in meddle and treble part and also deep bass, easy to build ,cheep I made for one hour. Schematic is working and power supply can be between 15-30VDC (1.5A). My voltage is 28V (No more then 36V for TDA2030) Good luck 😀

  2. I got the “2.1 Channel TDA2030A+NE5532 Stereo Pre-Amplifier Amp Audio Board” but how i can connect the amp to DC? Normally you have to connect it with AC…

  3. can i use a single supply 20v 500mA Dc ??

  4. can i use TDA2030 instead of TDA2003 in upper shown Hi-Fi audio TDA2003 circuit

  5. Why there is a printed circuit not working?
    The map is wrong?

  6. If any of the TDA2030 is removed in an amplifier circuit, will the amplifier still function well.

  7. The printed circuit board and schematic for tda2030 both are wrong and they don’t work.
    Please don’t waste beginners time they will lose hope of learning because of your wrong circuit.

  8. I am a novice to this field, but I will try to construct this in the near future.09.03.15

  9. hello , very useful site . iv a problem with 2 circuit with tda 2030 & 2003 .
    i have made each of them but there is some noise like hummm in .
    observing earth , shielded wire , seperate units and so on . some words to resolve this please .
    thank you so much in advance .

  10. this circuit is so good

  11. Dude schematic for” Power Amplifier Genneral Purpose by IC TDA2030″ pinout error..This make comfusingg….or am i drunk lol,.,,im noobie…pls give the right curcuit blueprint..i have 10x tda2030 here now ready for experimental project…should i blow all of my chips by following that diagram on u site??

  12. What if i want my circuit to have negative feedback and overall Gain with feedback = 1000?

  13. Yeah, all I got for output was static and smoke.

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