Circuits designed by David Johnson, P.E.
Last Updated on: Friday, December 29, 2017 02:53 AM

List of Dave's Circuit Designs

Text & Graphics Copyright © David A. Johnson, PE  --  ALL Rights Reserved.
LINKING to Dave's circuits is permitted but DO NOT COPY CONTENT to your WEB SITE server!

Modified Colman Lantern3

Reduce voltage to Photovoltaic Solar Panel with Ideal Diode

Solar Fireflies In Jar Light

Solar Insolution Meter

Solar Lithium Ion Battery Charger using LT1133

Solar Mason Jar Light

Solar Path Light Improvement

Solar Powered Cell Phone Charger

Solar Powered Flood Light using NiMH Cells

Solar Powered Infrared 1W Security Camera Illuminator

Solar Powered Lighthouse

Solar Powered Quartz Clock

Solar Powered Wireless Sensor

Solar PV Cell Test Fixture

Solar-Powered Pump Motor Controller

Tiny Solar Panels Using Photodiodes

Tool Shed LED Light

Variable Isolated AC Voltage Spans 0VAC to 280Vac

Well Pump Flasher & Beeper

1w Solar Path Light2

8 Solar Cell LED Light

8-Solar Cell Lithium Ion Battery Charger Version 2

9v Solar Panels Converted to 4.5v Panels

Cob LED 1w Solar Light

Convert Solar Powered Light to Flasher

Eight-Solar Cell Lithium Ion Battery Charger Version 3

Ideal Blocking Diode Circuit for Photovoltaic Solar Panels

Improved Solar LED Spot Light

Modified 4 D Cell LED Lantern

Modified Cheap Solar LED Path Light