With Instructables you can share what you make with the world, and tap into an ever-growing community of creative experts.
Tell us about yourself!
Wearable Electronics Class
Thank you Calebr13!
3D Printing Class
Custom designed laptop stan...View Instructable »
Just to clarify one thing, using linear voltage regulator like LM7805 isn't the most efficient way to regulate voltage (although it's very convenient). Linear voltage regulators' inefficiency increases as both voltage difference and current draw of the system increases in general. Plus, this configuration won't work if the solar cell generates voltages lower than 7V. If you are looking for more efficient way to charge your electronics, then you should consider using "Buck converters" :) Hopefully it helped.
Let your inbox help you discover our best projects, classes, and contests. Instructables will help you learn how to make anything!
© 2016 Autodesk, Inc.