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Solar Cell Circuits  

Solar Cells:   #'s - E       F - O      P - S       T - Z
 

Last Updated: January 01, 2018 04:02 AM

Circuits Designed by Dave Johnson, P.E. :
Solar Cell Test Fixture -  if you are considering building your own solar panel, you might try building the solar cell tester shown below.  When constructing a solar panel it is important to make sure that all the solar cells used in the panel be closely matched for their short circuit . . . Hobby Circuit designed by David Johnson P.E.-November, 2007

Solar-Powered_LED_Light_for_Tool_Shed  -  I have a lean-to 8ft by 12ft shed next to my house.  It is full of lawn chemicals and garden supplies.  There were times when I needed to get something from inside the shed during the dead of night.  Early on I had to use a flashlight.  But later, I installed a series of five 12v LED light strips on the ceiling.  Each strip contained 15 3v white LEDs.  The strip had 5 strings of three LEDs, wired in series, with a 150 ohm current limiting resistor. . . . Hobby Circuit by David Johnson P.E.-July 14, 2017

Capacitance Proximity Switch
Draws very low power - Ideal for battery-powered applications
6 Models Available - Call 806-368-7747




Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

Solar & Piezo Energy Harvester & Battery Life Extender -  The LTC3330 integrates a high voltage energy harvesting power supply plus a DC/DC converter powered by a primary cell battery to create a single output supply for alternative energy applications.  The energy harvesting power supply, consisting of an integrated full-wave bridge rectifier and a high voltage buck converter, harvests__ Linear Technology/Analog Devices App Note, Sep 19th 2013

Solar AA Battery Charger -  This almost trivial circuit may be used to charge a pair of AA or AAA sized cells insun __ Designed by G. Forrest Cook

Solar Based Multipurpose Charger -  Here is an ideal solution to harvest Solar energy for charging purpose.  This charger can replenish almost all types of batteries including Mobile phone battery.  it uses a Solar Module to convert light energy into electrical energy __ Designed by D Mohankumar

Solar Battery Charger -  This is the most simple and affordable solar battery charger that the hobbyist can make.  it has a few drawbacks over other similar controls, but offers numerous advantages.  it is intended for charging lead-acid batteries, but may also be used for charging any battery at a constant voltage.  Voltage output is adjustable.   __ Designed by Jim Keith

Solar Battery Charger -  Schematic + info + pictures __ Designed by Lennie Zink

Solar Battery Charger with LM317T -  Find out how to make a current controlled solar battery charger using an LM317T.   __ Designed by REUK-Renewable Energy UK website

Solar Battery Charging -  This instructable will show you how to make your own solar battery charger from very simple components.  it is taken from my documentation provided with a kit I supply, you should easily be able to source the same components yourself of course.  __ 

Solar Battery Protector Prevents Excessive Discharge -  This circuit prevents the battery in a solar lighting system from being excessively discharged.  itís for small systems with less than 100W of lighting, such as several fluorescent lights, although with a higher rated Mosfet at the output, it could switch larger loads.  The circuit has two comparators based on an LM393 dual op amp.__ 

Solar Bug -  Hide this solar-powered circuit suitably and see the reaction of your friends to the chirpy sound produced by it every few minutes.  in all probability, it will coax them to find...__ Electronics Projects for You

Solar Cell Battery Charger/Monitor -    NOTE: Must register on this site __ Designed by Published in Elecktor July/Aug, 2010

Solar Cell Charger -  These Circuits will allow for Voltage Regulation and isolation when Charging Lead Acid Batteries with a Solar Cell. __ Designed by G.L. Chemelec

Solar Cell NiCad Charger -  Schematic & notes only, there is not a circuit description.   __ Designed by Tony van Roon  VA3AVR

Solar Cell Phone Charger -  This little gadget uses a small 3 volt solar cell to charge a 6 volt NIC ad battery pack which, in turn, may be used to charge many models of cell phones and other portable devices with the addition of a suitable low-dropout voltage regulator.  The circuit "scavenges" energy from the solar cell by keeping it loaded near 1.5 volts (maximum energy transfer value) and trickle charges the internal battery pack with current pulses.  The simple circuit isn't the most efficient possible but it manages a respectable 70% at 100 mA from the cell and 30% when the cell is providing only 25 mA which is actually pretty good without going to a lot more trouble or using more exotic components. __  Contact:  Charles Wenzel of Wenzel Associates, Inc.

Solar Cell Regulator -  Our energy-hungry and environmentally aware society has been slow to make good use of the sun's "free" power. But now it's finally taking off. Using the sun's heat directly, for cooking and other applications, is already a common and popular technology in countries that have good weather. Hot-water panels are nowadays used in many parts of the world, in combination with a gas or electric powered water heater to help out when the weather doesn't help. But at the same time, electric solar panels are still expensive, justifying their use only as a novelty, or in locations where little power is needed, and bringing in commercial power would be even more expensive. __ Designed by Manfred Mornhinweg

Solar cell simulators -  Mighty useful in testing and designing your 'bots.  The 78L12 provides the regulated voltage required at the input of the solar cell simulator.  it limits the voltage to 12V and the current to about 100ma.  A 15V-24V unregulated voltage is used as the input to the 78L12.  Any other regulated 9V-12V source can be used.   __ Designed by Wilf Rigter

Solar Cell Test Fixture -  if you are considering building your own solar panel, you might try building the solar cell tester shown below.  When constructing a solar panel it is important to make sure that all the solar cells used in the panel be closely matched for their short circuit . . . Hobby Circuit designed by David Johnson P.E.-November, 2007

Solar cells implement low-cost illuminator -  09/12/97 EDN Design Ideas:  he advent of inexpensive solar cells and low-cost "ultracapacitors" makes it possible to develop an entirely solar-powered inspection illuminator.    __ Circuit Design by Dennis Eichenberg, Parma Heights, OH

Solar Charge Controller -  PIC  Project  The previous version of this device used pulse width modulation (PWM) to control the power from the five solar panels to charge the battery bank.  Under full sun conditions the MOSFETS got a bit warm and the whole unit radiated a lot of RFi.  This design uses a set of relays, one for each panel.  if the controller decides the battery voltage is too low, it engages another relay;.)  __ Designed by Luhan Monat-Mesa Arizona

Solar Charge Controller -  Find out more about Solar Charge Controllers.   __ Designed by REUK-Renewable Energy UK website

Solar Charged LED Utility Light -  Tired of always spending money on flashlight batteries only to have them fail just when you need them? Try this simple circuit out.  it would make an excellent science fair project.  The white LEDs are quite bright, they provide enough light to illuminate a small room at night.  The LEDs produce a nicely focused beam.  You can read by the light of this device.   __ Designed by G. Forrest Cook

Solar Charger -  PIC  Project  The previous version of this device used pulse width modulation (PWM) to control the power from the five solar panels to charge the battery bank.  Under full sun conditions the MOSFETS got a bit warm and the whole unit radiated a lot of RFi.  This design uses a set of relays, one for each panel.  if the controller decides the battery voltage is too low, it engages another relay;.)  __ Designed by Luhan Monat - Mesa Arizona

Solar charger for 12V batteries switch switching based on Zetex ZTX 851 -  This is another kit in our self-sufficiency range.  We also have a 12v fluoro inverter kit for those who need to operate 20watt to 40watt fluorescent lamps from a 12v supply.  We will be introducing a number of kits for those who have opted to live with 12v energy __ Contact Collin Mitchell

Solar Charger for Lead Acid Batteries -  Solar lead acid charger, with battery voltage monitor, for12V battery __ Designed by Jan Hammer

Solar Charging -  Schematic + Parts List + Notes __ Designed by Tony van Roon  VA3AVR

Solar Compass with Oled Display -  The solar compass presented here is a navigational tool, which helps in finding directions through the position of sun in the sky as reference.  This solar compass is not influenced by...__ Electronics Projects for You

Solar Current Meter -  This circuit is used to measure the current from a solar panel.  it has very low power loss for currents in the 0-10A range.  it also works as a general purpose DC current meter.  The circuit can be used on either the positive or negative side of a DC circuit __ Designed by G. Forrest Cook

Solar Engine -  Charges all day, runs at night.  Think noctibot here.   __ Contact Nervous nets © and patented Mark Tilden. Content originally developed Ian Bernstein

Solar engine solarbotICs -  Nocturnal-Controlled Solar Engine: The D1 solar engine is the original nocturnal solar engine design.  The design is simple, tuneable, but no longer terribly useful (I include it here just for purposes of education and folks' historical interest).   __ Designed by Wilf Rigter

Solar Engine that is MicroPower -  Voltage-Controlled Solar Engine: Ken Huntington's fairly complex, but very efficient "micropower" solar engine design.  No 1381s or ICs  needed.   __ Designed by Ken Huntington

Solar Flasher -  This circuit is a single transistor flyback (Joule Thief) circuit that features a third coil.  With it, flash duration and brightness is much enhanced, without resorting to large value capacitors.  The performance can be seen in the following Videos (on Youtube) : http://www.  youtube.  com/watch?v=tgcYcPdBwNo __ Designed by QS

Got Designs?
Please eMail
if you want me to link to and/or post your original design Thanks.

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Solar Cells:   #'s - E       F - O      P - S       T - Z


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