Electronics Help Care Amplifier circuit diagram
Amplifier Diagram circuit using STK4231:
This is the Amplifier Diagram circuit using STK4231. This amplifier makes 100watts+100watts audio output. STK4231+STK4211+STK4221 all IC diagrams are the same. Only the output watts are different. like stk 4141 series. Here needs dual voltage. We can use 15-0-15 voltage to 45-0-45 voltage depend on the IC. Positive, negative, and ground voltage are needed in this circuit diagram. It’s a stereo audio diagram.
The voltage should be best. We know that voltage X amperes= Watts. The best voltage can make a good output watts. here all resistors are 1/2 watts. Only the 0.22 ohms are 2 watts. All capacitors are a minimum of 50 volts.
Stk4211 can make per channel 70+70 watts and 8 ohms output using 40-0-40 volts to 50-0-50 volts. stk4221 can make 80+80 watts and 8 ohms using 40-0-40 volts to 60-0-60 voltage. stk4231 can make 100+100 watts and 8 ohms using 40-0-40 voltage to 70-0-70 voltage.
DIY car amplifier using 12 volt battery:
This is a DIY car amplifier using 12 volt battery. HA1388 is a stereo audio power amplifier IC from Hitachi. This circuit can make a stereo mode 18+18 watts output. and in mono mode can make 35 watts of output. Here, use HA1388 12-pin audio IC. This circuit can run from 12 volts to 24 volts. dual (stereo) low-power audio amplifier. designed to drive small speakers. very common in vintage consumer electronics.
This is only a raw audio amplifier circuit diagram. Here is a pre-amplifier and an audio graphic equalizer circuit board. like a bass tone circuit. Every amplifier needs a bass tone circuit to control the sound quality. and also need a pre-amplifier to make a strong output watts. 4558 ic base pre-amplifier is the best audio pre-amplifier.
must use a good quality transformer. good quality of diode and best quality capacitor to get the best output watts.
Here we have some articles for you
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