Solar Cell Voltage Regulator circuit

This device is designed to be a simple, inexpensive ˜comparator, intended for use in a solar cell power supply setup where a quick ˜too low or ˜just right voltage indicator is needed. The circuit consists only of one 5V regulator, two transistors, two LEDs, five resistors, two capacitors, and one small battery. Although a 4-V battery is indicated, 4.5 V (3 alkalines in series) or 3.6 V (3 NiCd cells in series) will also work..

Leave Comment

characters left:

New Circuits