Bread Board Power Supply. Start Up Project 18

1AFor a Hobbyist, Bread board is the common solder less circuit board to make the Prototype before assembling the circuit on the Etched PCB. We usually power the Bread board using Battery or DC adapter. It is a good choice to attach a Variable power supply permanently with the Bread board so that we can select any voltage for the circuit. For example some circuit requires 3V or 5V and some other circuits require 9V or 12 V. So by attaching the Variable power supply to the bread board, we can easily select the required voltage for the circuit. The variable power supply described here can provide 1.7 V to 13.75 V by adjusting the Pot. Let us see the Project.
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Solar Power Supply. Design Note 15

IMAGEYou can make this Solar Power supply as your work bench power supply for testing prototypes. It delivers variable voltage from 1.5 volt to 12 volts with a current up to 300 milli amperes. It can also be used to charge batteries during day time. By using the Pot, it is easy to set the output volt from 1.5 to 12 Volts.
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