auto cut-off battery charger: This is an auto-cut-off battery charger diagram for the 12-voltage battery. this circuit can protect the battery from overcharge. this circuit needs to be adjusted using the variable. at first, we have to fully charge the battery. after charging the battery we have to cut off …
Read More »How to make 5 voltage using tip41c?
How to make 5 voltage using tip41c: This is a 5-voltage circuit diagram for the Bluetooth card or charging 4.2-volt battery. or anywhere we want. we can use 7805 to make 5 volts. but 7805 can make half amperes. Sometimes we need more amperes. here used tip41c transistor. this transistor …
Read More »How to make ac to dc
How to make ac to dc: this is the circuit diagram for making ac to dc voltage. this is a step-down transformer. always we have to use a step-down transformer to use the voltage. our primary voltage is ac 220. normally we need lower voltage. like 12 volts /24 volts …
Read More »How to make 12-voltage SMPS?
How to make 12-voltage SMPS: This is the 12-voltage SMPS circuit diagram. this is an easy circuit. used here KLY MK-21C Universal Power as the MOSFET. first makes ac 220 to Dc voltage 350. then the dc voltage goes to the transformer using this KLY MK-21C Universal Power. the transformer …
Read More »How to make 5 voltage?
How to make 5 voltage: This is a circuit diagram to make strong 5 voltage. normally we use 7805 to make 5 voltage for audio Bluetooth cards or others. but 7805 makes 500ma amperes. but sometimes we need 2 amperes. then we can use this circuit. this circuit can make …
Read More »Adjustable voltage regulator using lm317
Adjustable voltage regulator using lm317: This is an adjustable voltage regulator using lm317. we can control the voltage from 1 to 35 voltage. if we use 12 voltage then we can control from 1 to 12 voltage. if we use 24 voltage then we can control from 1 to 24 …
Read More »How to check positive and negative 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 …
Read More »How to make dc voltage?
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 …
Read More »how to make voltage divider
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 …
Read More »Fan regulator circuit diagram
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. …
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