This 50 watt audio amplifier circuit electronic project is designed using the TDA7850 integrated circuit which is a very simple class AB power amplifier designed in MOSFET technology which use just few external components.
The 50 watt audio amplifier circuit must be powered usually from a 14.4 volts power supply.
A very simple 20 watt amp circuit electronic project can be designed using the LM2005 dual high power amplifier, designed to deliver optimum performance and reliability for automotive applications. LM2005 20 watt amp circuit has a high current capability (3.5A) that enables the device to deliver 10W/channel into 2ohms (LM2005T-S), or 20W bridged monaural (LM2005T-M) into 4ohms, with low distortion.
The TBA810 car audio amplifier circuit can provide a 7 W output power on a 4 ohms or 2 ohms load impedance .
With a 4 ohms speaker TBA810 car audio amplifier circuit needs to be powered from a power supply with output voltage of 16 V and if we using a 2 ohms load impedance the TBA810 circuit is require a 14.4 volts dc power supply .