2 x 32 Watts stereo amplifier
Description.
The circuit given here is of a 2 x 32 Watt stereo amplifier using the famous TDA2050V IC from ST Microelectronics. The TDA2050V is an integrated monolithic 32 watt class AB audio amplifier IC available in the Pentawatt package. The IC has lot of good features like low distortion, short circuit protection, thermal shut down etc.
Two TDA2050V ICs are used here, one for each channel. For each channel the input audio signal is fed to the non-inverting input of the IC through 1uF (Non-Polarized electrolytic) capacitor and this capacitor performs the job of DC decoupling. The ratio of the 22K and 680 ohm resistors determine the gain of each channel. The network comprising of 2.2 ohm resistor and the 0.47uF capacitor connected between the output of the amplifier and ground forms a Zobel network which represents the impedance of the speaker appear as a steady resistive load to the amplifier output and this dramatically increases the high frequency response.
Circuit diagram.
Notes.
- Assemble this circuit on a good quality PCB.
- Use 18V DC dual power supply for powering the circuit.
- Fit the ICs with adequate heat sinks.
- Connecting 10K POTs at input lines will serve as a volume control.
- For full output power the circuit require 200mVpp RMS input.
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sounds good
simple and powerfull
Hi Faraday you can use TDA2002 push pull amplifier with 12volt with 2 ohms speaker it will deliver >25watts. pl refer the datasheet.
http://www.datasheetcatalog.org/datasheets/400/378176_DS.pdf
Sir, please I need a high power sub-woofer circuit diagram for that operates on 12 volt. Both IC and Transistor types. Hope to hear from you soon. Good Day.
Sir, please a need a high power sub-woofer circuit diagram for that operates on 12 volt. Both IC and Transistor types. Hope to hear from you soon. Good Day.
Hi guys!
I have built this amp just now and im testing it now for a few hours.
With one word its amazing. Realy clear sound for its price. Wonderful amp for use in a normal sized room.
I wasnt realy fan of gainclones till now.
Hi Victor from a dual supply connect positive to +18 volt terminal and negative to -18volt terminal and zero volt (common of both the voltages to terminal shown as earth.(Pin No 1 goes to common via R1 22K)
I don’t understand the voltages stated in this schematic
http://www.circuitstoday.com/2-x-32-watts-stereo-amplifier
+18vdc -18vdc I understand the split voltages but there seems to be another voltage shown
Victor
Hi Ahmed TDA8510 is low power just 26watts BTL amplifier. you require around 40 to 60 watts RMS power for sub woofer as the signals are felt and not heard. so power is very importand. you require a active band pass filter to take care of 20 to 120Hz information for the subwoofer amplifier ofcourse with very low distortion.
hi admin, i found that the subwoofer ‘creative’ depends in its design on the ic tda8510j and mc4558cn please help me to create this circuit because i am really interested in its bass and want to create it.please help me.
Hi Sokar you can have ampli speakers (say with 4 to 6 watt RMS per channel like TDA2002 etc) at each room, keep a selection system near your computer (a simple 2 pole 2 way switch for each room) either connect to signal or to ground with the switches. Since your computer output will be at line level swichitching and running them for long distance with audio quality screened cable will be possible without any drop or noise.
I was wondering, can this circuit be replicated? I’m currently looking for a decent stereo hi-fi amp circuit that can have recieves a single input (from my PC) but the distributes it to several rooms. There will be buttons on the front of the unit which will activate/deactivate the music playing in each room. For example, if i wanted to have music playing in only 2 of the 5 rooms in my house, I can select only those 2 rooms but if i wanted all of them on, I don’t want to have a noticable drop in volume.
Hi Rengarajan You can assemble the motional feed back amplifier appeared in “Circuits today” for your sub woofer amplifier. You can construct 4nos TDA2003 amplifier appeared again on circuits today for your front left, right & rear left, right speakers. Use a standard 5.1 decoder or with any 5.1 DVD player. Sub woofer requires high power because we cannot hear very low frequencies but our body can feel the thump, (this is the reason, why you cannot enjoy head phone music comparing to good reproduction from speaker system, with a very good bass response)so you can place it any where whin the room. The other speakers give you the image hence phasing and direction towards listners are important. for mid and high frequencies a low distortion 6 watt amplifier is good enough. (for side speakers high power is not the criterea)
SIR, I WANT ASSEMBLE THE 5.1 CHANNEL HOMETHEATRE AMPLIFIER USING IC OR MOSFET. KINDLY GIVE THE SCHEMATICS AND CIRCUIT DETAILS. THANKING YOU.
respeceted sir ,
I have 18v possitve & NEGTIVE supply sub woofer board. but i have to connect to may car audio amp which is working in 12 v DC supply .so I requst to you witch cicurit available for add my car audio amp .
thank you .
biju .