Make Variable DC Lab Bench Power Supply That Fits in Your Pocket !

Let's Make Ultra Small Sized Dc Variable Lab Bench Power Supply Using Buck Boost Converter Module And 1A Lithium ion Battery charging Board From ebay.

" Its So Small That You Can Carry It Anywhere !"

This Variable Power Supply Is Excellent Starter Electronics Project For Begineers , its Modular So You Can Buy Each Module From ebay at Quiet Cheap Price .

Buy Parts Here
♦ Dc Buck Boost Converter Module (2.26$)
http://www.ebay.com/sch/i.html?_sop=15&_nkw=buck+boost+converter+cc&rt=nc&LH_BIN=1

♦1A Lithium Ion Battery Charging Board (1$)
http://www.ebay.com/sch/i.html?_sop=15&_nkw=tp4056&rt=nc&LH_BIN=1

li-ion Battery Can be reused from your old cellphones For Free !

This Buck Boost Regulator Uses Most Popular Lm 2596 and Xl6009 For Step Up And Step Down Respectively . This Dc-Dc Buck Boost Converter Is Capable of Supplying 1.25 - 35 Volts With 1.5 A Current

The CC (Constant Current ) & CV (Constant Voltage) Ability Makes This Chip Perfect For Small portable Power Supply . The Great Thing About This Diy Project is Its Cheap Cost And Portability it gives you freedom to test any electronics at remote locations.

Enjoy The Step By Step Tutorial Procedure To Make This PoWer Supply !

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Buy Parts Here
♦ Dc Buck Boost Converter Module (2.26$)
http://www.ebay.com/sch/i.html?_sop=15&_nkw=buck+boost+converter+cc&rt=nc&LH_BIN=1

♦1A Lithium Ion Battery Charging Board (1$)
http://www.ebay.com/sch/i.html?_sop=15&_nkw=tp4056&rt=nc&LH_BIN=1

li-ion Battery Can be reused from your old cellphones For Free !

1. Clean the battery terminals with cleaning solution like isopropenol alcohol & then apply flux to make soldering easier.

2. Apply sufficient amount of soldering metal on battery leads.

3. Strip ends of wires.

4. Dip wires in flux and tin them.

5. Solder TP 4056 li ion Battery charging board to battery , use double sided tape to stick it on to battery.

1. Carefully Solder Input & Output terminals from Buck Boost converter With appropriate Polarities.

2. Connect a Switch to control the power supply.

we're almost done ...

1. Additionally you can use panel voltmeter to display Voltage and also connect led at the output.

2. Connect a diode at the output in reverse Polarities to reduce back emf from inductive loads.