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Circuit Diagram: 50W Power Amplifier Part list: Part list

The above is a stereo amplifier circuit based on IC STK4191 with 2 X 50Watt output power 8 ohm impedance. And besides that you can use some of the IC can also be applied in this series include the STK4101, 4111, 4121, 5131, 4141, 4151, 5161, 4171, 4181, and 4191. Required supply voltage from 12 Volt to 35 Volt DC. Part List : R1 = 22K R2 = 22K R3 = 560R R4 = 56K R5 = 1K R6 = 1K R7 = 100R R8 =  2K R9 = 2K R10 = 4.7R R11 = 2K2 R12 = 2K2 R13 = 4.7R R14 = 100R R15 = 56K R16 = 560R C1 = 0.1uF C2 = 0.1uF C3 = 100uF C4 = 100uF C5 = 100uF C6 = 0.1uF C7 = 47uF C8 = 47uF C9 = 0.1uF C10 = 100uF C11 = 100uF U1 = STK4191

The schematic diagram below shows a simple trivial low-cost 12 volt DC 50W off-line SMPS switching power supply circuit. It can be used for DIY home projects or to learn operation of flyback converters. This PSU can work over a universal input AC line range 90-264 VAC. It provides a nominal 12V DC output at more than 4A load. Line and load regulation is better then 0.5%. The unit has over current, over temperature and over voltage protections, as well as passive inrush current limiting. Output ripple are approximately 0.2 V peak to peak in the range 0 to 20 MHz. If you need to get lower ripple, you may put an additional output capacitor or an LC filter outside of the feedback loop. This project is a modification of a 24V circuit that I've designed many years ago as a consultant for a small company. That company wanted a plug-in replacement to a cheap off-the-shelf AC to DC power supply, which had a long lead time. By the time I've completed the design and built a proto, they ...

This is the circuit diagram of 50W power amplifier circuit which built based on single power amplifier chip of STK084. It's an well-known old IC for audio frequency (AF) amplifier. 50W Power Amplifier Circuit Diagram This circuit requires dual polarity / split power supply with maximum supply of ± 50. The recommended supply is ± 35 / 2-3A DC current. You may use this split power supply circuit for the amplifier. Use 28V center tap transformer to get about ± 36V output. Technical Details: Power output: 50W RL : 8 Ohm TDH : 0.2 % Rin : 52K Gain : 26.4 dB Noise : 0.3 mV Take a note that heatsink is required to be mounted on the power IC since it will going to hot when operated and deliver high power output (high audio volume level).