This is a high output power amplifier based on power amplifier IC STK-1050. STK-1050 Features: Does not require externally connected emitter resistors. Values of emitter resistors have carefully been reviewed to provide superior characteristics. Better supply voltage utilization permits designing power supply voltage that are about 0.7V (for RL=4ohms) lower than those required for previous DPP models. Maximum allowable power consumption for each resistor is 5W or higher, permitting accomodation [...]
Here the great 35W power amplifier with single IC STK082 from Sanyo Semiconductor. Simple circuit with high power output.. STK082 Features: @lMST, l Channel by 2 Power Supplies Differential amp. constantc current driving. Capable of tone controlling.
This is the curcuit application of power amplifier IC LM4756. The IC have the capability to deliver dual output channel at 7W for each channel. Like the other audio amplifier circuits, this circuit just need a few external components to work. Circuit application: PCB design:
This is another power amplifier circuit with power IC KA series. This amplifier delivers dual power output (stereo) at 1.2W for each channel. The KA2214 is a monolithic integrated dual audio power amplifier in a 14-pin plastic dual in line package. It is designed portable audio sets.