200W Power Amplifier

STK 4050 is a power amplifier module is very powerful, because the IC is already a module then only needed a little extra components to  build a reliable 200W Power Amplifier. Here is a picture series of Power Amplifier ICs 200W use STK 4050 complete with its power supply.You need to fix 10A power transformer to get best performance. You can design this PCB with easy Toner Transfer Method.  

Download STK4050 Datasheet 

50W+50W Stereo Power Amplifier

This is another high quality 100W (50W+50W) Stereo Power Amplifier Circuit. STK4191 Hybrid IC we use for this circuit. It's diagram same as 50w stereo amplifier circuit and 70w stereo amplifier circuit previously introduced by us. But here, value of some external components, voltages are little bit changed than previous circuits. Also, this one is fairly complicated circuit and you must be use good quality PCB, ICs and other accessories to get best performance in this power amplifier.You can get superb audio quality and unmatched more power in this power amplifier and it delivers 100W Rms (50W + 50W) through a two 8Ω speaker. STK4191 power amplifier IC generates more heat and install a proper large heatsink and cooling fan with IC. Apply heat sink compound coat between IC and heatsink. You need dual power supply circuit to operate this power amplifier.

Download STK4191 Datasheet 

Source:- http://www.circuitbook.org

70W Power Amplifier

 This circuit shows about STK086 For 70W STK Amplifier Circuit Diagram . Features:using three voltage plus, min, ground. with a maximum voltage approximately 55Volt DC, With a maximum output of 70W 8ohm impedance.. Component: Resistor, Capacitor, IC.

Download STK086 Datasheet 

300W Subwoofer Power Amplifier

This is an amplifier circuit that is formed from a transistor amplifiermiraculous. This circuit is used in the speaker subwoofer with 300W maximum power on each side. To apply it, can be used in the room that is not too large, like the car. And the voltage needed between 25 to 42 Volt DC.

150W Car Amplifier

eries 150W Amplifier With Active Crossover Series 150W Amplifier with Active Crossover is very interesting. Actually, this circuit uses 4-channelpower amplifier chip. Well, as an Active Crossover here we use also a chip that can separate the tone of the bass, midrange and treble, the output from the Active Crossover can be directly amplified by power amplifier.

Power Chip 4-channel amplifier that we use is SANYO LA47536 who have power outputs up to 150W, while for Active Crossover (Active Crossover) we use the LF353 from National Semiconductor.

Download LA47536 Datasheet