Electronics Help Care Amplifier circuit diagram Amplifier circuit diagram using STK490-310:
This is an amplifier circuit diagram using STK490-310. This board can make 20W+20W to 75W+75W. The voltage is 35-20-0-20-35 to 50-30-0-30-50. STK490-040 TO STK490-110 voltage should be 35-20-0-20-35 volts. and STK490-140 to STK490-340 voltage should be 50-30-0-30-50 volts.
We can use STK490-040,STK490-070,STK490-090,STK490-110,STK490-140,STK490-220,STK490-310,STK490-340 ic in this circuit.
Amplifier circuit diagram using TDA7370:
This is an amplifier circuit diagram using TDA7370. Here are 2 circuit boards. One is a 4-input and 4-output, and the other is a 2-input and 2-output. Normally, it’s for car audio. we can get 8+8+8+8 watts and 18+18 watts using 12 voltage.
Audio amplifier circuit using TDA2050:
This is an audio amplifier circuit using TDA2050. Here, one Ic and two transistors, tip41 and tip42, are used. The TDA2050 works as a driver. Here, 18-0-18 volts and 3 amperes are used. The dual voltages—positive, negative, and ground—are needed to run this circuit.
This is a 12-volt circuit diagram. We can get a maximum of 15 amperes from this diagram. We can use AC 12-0-12 voltage to 25-0-25 voltage. But the output will be 12 only. Here, use one 12V regulator IC. la7812. and one 2sc5200 transistor.
To make a regulated 12 Volt DC power supply from a standard AC wall outlet, you must first safely step down and convert the voltage.1 This is typically achieved using a four-stage process:
Step-Down Transformer: The high-voltage AC (120V or 220V) is reduced to a lower AC voltage, usually around 12V to 15V AC, using a step-down transformer.
Rectification: This low AC voltage is converted into pulsating DC using a bridge rectifier circuit, which consists of four diodes (like the 1N4007 or similar) arranged to allow current to flow in only one direction.
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