Power Bank - How to make Emergency Power Bank at Home

Power Bank -  How to make Emergency Power Bank at Home

This video I will go to show you how to make simple emergency power bank at home. It's easy to make it.

in this power bank , here I used one 9 volt DC battery. if you can used rechargeable and non rechargeable battery as your wish. and used 7805CV voltage regulator.

More video:-

How to Fix a Light Switch -  Light Switch Wiring
https://youtu.be/JYmLBr4uoAI


Boost Converter – Boost Converter Tutorial- DC to DC Boost  Converter Circuit
https://youtu.be/zkttMR9PNL4

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Boost Converter - Boost Converter Tutorial - DC to DC Boost Converter ...

Boost Converter -  Boost Converter Tutorial  - DC to DC Boost Converter Circuit

A boost converter (step-up converter) is a DC-to-DC power converter that steps up voltage from its input to its output. It is a class of switched-mode power supply containing at least two semiconductors and at least one energy storage element: a capacitor, inductor, or the two in combination.
The key principle that drives the boost converter is the tendency of an inductor to resist changes in current by creating and destroying a magnetic field. In a boost converter, the output voltage is always higher than the input voltage.
(a) When the switch is closed, current flows through the inductor in clockwise direction and the inductor stores some energy by generating a magnetic field.

(b) When the switch is opened, current will be reduced as the impedance is higher. The magnetic field previously created will be destroyed to maintain the current towards the load. As a result, two sources will be in series causing a higher voltage to charge the capacitor through the diode D.

More videos:-

AC to DC Converter by using Bridge rectifier  
https://youtu.be/uTKhKyPQO58

Working of Fan with Circuit Diagram - Construction of Ceiling Fan Motor
https://youtu.be/VJlw43ZNVgw

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