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Showing posts with the label STK Amplifier

2x110W AF power amplifier class AB 2 channels

Circuit Diagram:

2x70W Audio Power Amplifier STK series

Overview
The STK412-000 series are class H audio power amplifier hybrid ICs that feature a built-in Shift power supply circuit. These ICs provide high efficiency audio power amplification by controlling (switching) the supply voltage supplied to the power transistors according to the detected level of the input audio signal.
Features Pin compatible IC series that covers power ratings from 50 W × 2 channels to 180 W × 2 channels at 0.7 or 0.8% THD, 20 Hz to 20 kHz. This allows the use of acommon PCB for all output classes.The pin arrangement is also unified with that of the three-channel STK413-000 series. This means that PCBs designed for three-channel models can also be used for two-channel models.Miniature package50 W/ch to 120 W/ch (THD = 0.8%, f = 20 Hz to 20 kHz): 64 × 36.5× 8.5 mm*150 W/ch to 180 W/ch (THD = 0.7%, f = 20 Hz to 20 kHz): 78 × 44× 9 mm*Not including the IC pins.Allowable load shorted time: 0.3 sCircuit diagram

2x110W Power Amplifier Class AB

Circuit diagram:

3x150W Audio Power Amplifier IC Class AB

General Description
The STK433-330N-E is a hybrid IC designed to be used in 150 3 ch class AB audio power amplifier

Circuit Diagram
Layout:
PCB: