Music Amplifier | Electronic Project Circuits

Posts Tagged ‘music amplifier’

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.

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Categories: Power Amplifier Tags: Hi-Fi Audio amplifier, music amplifier, TDA2003

300Watt audio amplifier HIFI by MJ15003-MJ15004 Transistor

Follow the request of friends who likes High power Amplifier Circuit. I then beg for to advise this circuit. It has can to give the electric power about 300Watt RMS unless. Still be amp OCL Model Class AB give sound tall power and certainly should systematically protect that excellent a loudspeaker then torn difficult. Besides still use Transistor replace the integrated circuit then give waste matter feeling cancels bland three goes up and have MJ15003 and MJ15004 then have respond electric good enough power. When friends see the circuit has already , will have plentiful detail,then inappropriate for hobby Electronics man type. But if friends want to try build , have no a problem , be lucky.