Project- 2: How to make a USB light by using a unsupported USB cable.

PROJECT : 2

How to make a USB light by using a unsupported USB cable

           
       
               In here i describe how a USB light can make from simply 2 LED and a unsupported USB.
Just you have to cut the USB and select red and black wire and connect a LED to this. when you connect this USB to your PC or mobile charger or OTG cable then light is on.

From USB you get around 3 to 5 V and in red and black wire you get that so i just use that and lights on those LED.

USB light

If any one want to ask any question please command below.

Thank You and keep WATCHING my YouTube channel.

Project-1:How to make a 9VDC source from 220 V AC system by using bridge rectifier circuit.

Project-1:

    How to make a 9VDC source from 220 V AC system by using bridge rectifier circuit. 

              A bridge rectifier is an arrangement of four or more diodes in a bridge circuit configuration which provides the same output polarity for either input polarity. It is used for converting an alternating current (AC) input into a direct current (DC) output. A bridge rectifier provides full-wave rectification from a two-wire AC input, therefore resulting in lower weight and cost.

     A bridge rectifier circuit given here,
                                                     

BRIDGE RECTIFIER

LM 7809 IC description means where input and where output you connect given in the figure below,

In this video i describe how one can make a 9 VDC source from our domestic 220 VAC source.I use basically a transformer,a bridge rectifier circuit and a voltage regulator.

PROJECT- 1

You can buy transformer from the side mention below,

http://www.electroncomponents.com/15-0-15-500ma-15v-Transformer

http://www.amazon.co.uk/Secondary-30VA-Transformer-15-0-15-Ouputs/dp/B00FDUSUEU

Keep watching my YouTube channel and visit my blog.If you have any query write in command below.