## Monday, January 8, 2024

How to design Transformerless Power Supply circuit Explained with Calculation

In this video, I have explained how to design a transformerless power supply to supply small DC loads. I have also shown the calculations for designing the AC to DC transformerless power supply circuit with some simple formulas.

This video is for demonstration and educational purposes only.

Each demonstration presents risks and hazards that must be fully understood before attempting.

And should be performed only by professionals

I would like to thank you Seeed Studio Fusion PCB service for sending me the prototype PCB for this Transformerless AC to DC power supply.

Required components list for this ac to dc power supply circuit:

1. 1uF 400V AC Capacitor 1no [C1]

2. 270K ohm 0.25-watt resistor 2no [R1 R2]

3. Diode (1N4007) 4no [D1 to D4]

5. 100uF DC Capacitor 1no[C2]

6. Zener Diode 5.1V 1no [Z1][choose the zener diode as per the required output voltage.]

7. 100-ohm resistor 1 watt 1no [R3]

8. 220 ohm 0.25-watt resistor 1no [R4]

9 5mm LED

8.AC connector

In this video, I have shown how to convert 220 volt AC to 5 volt DC using this power supply. To make a 12-volt dc power supply you have to use a 12 volt zener diode instead of 5 v zener. While making the bridge rectifier circuit I have explained how to place the diodes on the PCB.

In the end, I have discussed the working of the transformer less power supply with calculations so that you can modify the circuit according to the requirement.

To supply the small DC load this is a very simple and useful power supply. After watching this tutorial video you can easily design the DC power supply circuit at home.

How to design Transformerless Power Supply circuit Explained with Calculation

In this video, I have explained how to design a transformerless power supply to supply small DC loads. I have also shown the calculations for designing the AC to DC transformerless power supply circuit with some simple formulas.

This video is for demonstration and educational purposes only.

Each demonstration presents risks and hazards that must be fully understood before attempting.

And should be performed only by professionals

I would like to thank you Seeed Studio Fusion PCB service for sending me the prototype PCB for this Transformerless AC to DC power supply.

Required components list for this ac to dc power supply circuit:

1. 1uF 400V AC Capacitor 1no [C1]

2. 270K ohm 0.25-watt resistor 2no [R1 R2]

3. Diode (1N4007) 4no [D1 to D4]

5. 100uF DC Capacitor 1no[C2]

6. Zener Diode 5.1V 1no [Z1][choose the zener diode as per the required output voltage.]

7. 100-ohm resistor 1 watt 1no [R3]

8. 220 ohm 0.25-watt resistor 1no [R4]

9 5mm LED

8.AC connector

In this video, I have shown how to convert 220 volt AC to 5 volt DC using this power supply. To make a 12-volt dc power supply you have to use a 12 volt zener diode instead of 5 v zener. While making the bridge rectifier circuit I have explained how to place the diodes on the PCB.

In the end, I have discussed the working of the transformer less power supply with calculations so that you can modify the circuit according to the requirement.

To supply the small DC load this is a very simple and useful power supply. After watching this tutorial video you can easily design the DC power supply circuit at home.