Flash Light Making Old Dead Battery | Voltage Boost Converter | DC to DC Voltage Booster

In this video I will show you how to make a Flash Light using a 1.5V Old Dead Battery.
Flash Light Work on 1.5V Dead Battery,Voltage Boost Converter,DC to DC Voltage Booster
A joule thief circuit is basically an efficient, self-oscillating voltage booster circuit, built using a single transistor, resistor and an inductor, which can boost voltages as low as 0.4 V from any dead AAA 1.5 cell, to much higher levels.
Technically it may seem impossible to illuminate a 3.3 V LED with a 1.5V source, but the amazing concept of joule thief makes this look so easy and effective, and virtually unbelievable. Moreover the circuit additionally makes sure that not a single drop of "joule" is left unused in the cell.
A joule thief circuit is pretty popular with all electronic hobbyists, because the concept allows us to operate even the white and the blue LEDs from a 1.5V source which normally require 3V to illuminate brightly.
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