Friday 29 October 2021

DC Power Supply Circuit Designing Process

 

DC power supply circuit is a backbone of electronic devices. DC power supply convert alternating current (AC) into direct current (DC) as well as drop volt according to requirements. Normally 2 basic methods use for volt drop, step down transformer and capistor dropper circuit, In this circuit we use 12 volt ,1.5 amp step down transformer. For rectification we use 4 diodes to make bridge rectifier. For smooth DC current we use capistors for filtration 100uf and 1uf, and 7812 voltage regulator.

Making process is very simple and easy, you can make easily at by following few easy steps.
Design circuit according to circuit diagram on veroboard.



solder all components gently. for batter results use soldring station.
how to make soldring station ➡️https://youtu.be/x3PevOW3ZzI

use good quality components for durable and safe circuit. 


how to make ➡️https://youtu.be/43mE8H05ikM
instagram @multiprojectsofficial 

Monday 25 October 2021

Custom Metal Stamp|branding iron Making Process



Custom metal branding stamp is used for punching logo or your company name on various items like wood, rubber, leather and plastic etc..

we are going to make custom metal branding stamp. The material we use for stamp making is 3mm thick Aluminium alloy plate. Basic purpose for using aluminium alloy plate is easy cutting and drilling with few Basic tools.
you can easily make at home by following few steps.
●print out your desire logo and place on aluminium alloy plate.


●marke edges gently with the help of small sharp pen knife.

●we use 1,2 and 3 mm metal bits for drilling near to the edges.



●make fine edges with the help of grinding file.

●place on suitable handle.

how to make ➡️https://youtu.be/MvrrtMQFofc
instagram @multiprojectsofficial 

Thursday 14 October 2021

Rubber stamp making process


Branding stamp and name stamp is basic verification sign of your company and  your post etc.

we are going to make a rubber stamp. The important part of  stamp is photopolymer(change its properties when exposed to light). we need a tracing paper and some amount of gasoline . the making process is very simple. you can make easily at home by following few steps.

Edit your desire stamp logo or text in any photo editing software. adjust your required stamp in black box,and reflect vertically.


print on tracing paper (white transparent paper).

place the print on photopolymer sheet.

keep in sunshine for 45 munits(atleast).
for batter results use ultraviolet light.

Wash in gasoline until your stamp will be clear.

Remove extra rubber from sides gently.

place on stamp handle. 
instagram @multiprojectsofficial 

Monday 11 October 2021

Transformerless power supply making process


Transformerless power supply is very commonly used in electronic devices. It convert high volte AC(220v or 110v) in to low volte DC(3v,5v,6v,9v,12v..etc) . transformerless power supply also known as capistor dropper circuit. basic principle of this circuit is capacitive resistance of capistor to step down voltage. the advantages of this circuit is small size and lite weight, it is easily adjust in small electronic device. its low price circuit.

The main component of this circuit is x-rated capistor.

 In this circuit we use 225j capistor, 100k resistance,  4 diodes, 100uf capistor and voltage regulator 7806,7812.
the circuit diagram is given below.


design circuit according to circuit diagram. 
Sold all components carefully.
use soldring station for best soldring results. 
instagram @multiprojectsofficial