Electronics Help Care electronics circuit diagram

DIY SMPS power supply This is the DIY SMPS power supply for DC voltage. we can make the Switch mode power supply like this system. this system is so easy to make. we can also control the voltage using the KLY variable. this circuit needs one old computer power supply …

Transistor circuit for amplifier This is the transistor circuit for amplifier using driver circuit. we can use transistors as we want. like one pair to 100 pair. the output watts will depend on the voltage and amperes. transistors can’t increase the output watts. transistor just makes the sound lower to …

Amplifier circuit using 2sc5200 and 2sa1943 This is an amplifier circuit using 2sc5200 and 2sa1943. It’s a 150-watt audio diagram. In this diagram, we can use 25-0-25 to 45-0-45 voltage and 3 amperes. If we use 35-0-35 voltage and 3 amperes, we can get 35X3=105 watts. Alternatively, if we use …

Driver circuit for transistor amplifier This is the driver circuit for transistor amplifier. this circuit can be used with PNP and NPN transistors. we can use 2sc5200 and 2sa1943. we can use 30-0-30 voltage to 80-0-80 voltage.  The circuit diagram is here 2sc5200 Polarity is NPN. Max Collector Power Dissipation is …

Amplifier diagram using tda2030 This is an amplifier diagram using tda2030. it’s a 15w+15w stereo circuit board. we can use 10-0-10 to 12-0-12 ac voltage. We can also use a 15-0-15 AC voltage and then change the TDA2030 to TDA2050.  circuit diagram This is the  Speaker protection circuit diagram. It can protect our …

how to repair amplifier circuit it’s very easy to repair the transistor amplifier circuit. every board has a driver section and main transistors. when the board has a problem then we have to repair it. for this, we have to check the main transistor first. then the driver transistors. here …

Amplifier circuit diagram using tda2030 This is an amplifier circuit diagram using tda2030. it’s a mono board. we can get 35 watts from this board. here can use 10-0-10 voltage to 18-0-18 voltage. Dule tda2030 is used in this board. and also need dual voltage positive negative and ground voltage. …

DIY audio amplifier using transistors How to DIY audio amplifier using transistors? this is a 100-watt mono-circuit diagram. for the stereo, we have to use a dual circuit. here, we can use 20-0-20 voltage to 50-0-50 voltage.The best voltage is 35-0-35 and it is 4 amperes.  Details about 2SC5200  2sc5200 …

PCB Layout Mini amplifier TDA 2009 This is PCB Layout Mini Amplifier TDA 2009. This circuit runs from a minimum of 9 volts to a maximum of 24 volts. it’s makes 10W+10W in stereo mode. but in mono mode, it produces 28 watts. it’s an easy circuit diagram and a …

200 watts amplifier using tda7294 This is the 200 watts amplifier using tda7294. here use dual IC for the stereo circuit. it’s a bridge mode circuit diagram. needs dual voltage positive negative and ground voltage. This circuit runs from 15-0-15 voltage to 35-0-35 voltage. we can get 100 watts + …