Voltage

How to check positive and negative voltage: This is the circuit for checking the voltage. this circuit is for polarity checking for the negative and positive voltage. sometimes we have to check the voltage polarity wire when we use the same color wire for the voltage. normally it happens for …

How to make dc voltage: This is a circuit diagram for making voltage. this circuit is for dual volts. here used a full wave transformer. this transformer is ac 35-0-35 voltage. this ac voltage makes dc using 4 diodes and 2 capacitors. usually, this circuit needs an amplifier—positive- negative, and …

how to make a voltage divider: This is a circuit to divide the voltage to make an amplifier. here used one transformer. one full wave transformer—50-0-50 voltage. but this circuit makes 100-50-0-50-100 voltage. sometimes we need dual power to make an amplifier. some amplifier circuits need dual power low and …

Fan regulator circuit diagram: This is a fan regulator circuit diagram. we can control our fan using this circuit. not only the fan. we also can control the light. this circuit will work under 100 watts and Ac220 volts.    here used one transistor BD136. one 104j 250 volts pf. …

12-volt battery charger: This is the 12-volt battery charger. this circuit is a simple circuit diagram. but this circuit is dangerous. we can use this circuit without touching it. this circuit makes 12 voltages and 500mA. but this circuit can electrically shock. we can change the small battery. like 4/5 …

How to make 12 volts: How to make 12 volts for the preamplifier. this voltage we need for making an amplifier. the positive negative and ground voltage needs for making an amplifier. class AB, class H amplifier needs dual voltage. when we need 12-0-12 voltage. normally we use 7812 and …

how to make voltage for the amplifier: Every amplifier needs a good-quality sound. the amplifier makes watts according to volts. we know that Volts X amp= Watts. if we use 50 voltage and 10 amperes then we get. 50 X 10=500 Watts. so every amplifier needs a strong voltage. The …

This is a 3.7-volt to 12-volt converter circuit diagram: 18650 model 3.7 voltage battery is a common battery. everywhere we can use this battery. the laptop used this battery. mobile power bank using this battery. Small hand fan using this battery. bicycle using this battery. many power banks are using …

How to make 3.7-volt battery charger: How to make 3.7-volt battery charger? This is the circuit diagram of the 3.7-voltage battery charger. this is an auto charger diagram. normally we can’t find a 3.7 voltage transformer to charge this battery. we got 5-voltage or 6-voltage chargers. we can find 5 …

how to use diode and capacitor: here is the diagram for using diodes and capacitors. this circuit is for making amplifier voltage. making an amplifier needs dc voltage. here we use a transformer to make ac 220 to 50-0-50 voltage. this transformer is a step-down transformer. here used a diode …