Solar Relay -  With extended periods of bright sunshine and warm weather, even relatively large storage batteries in solar-power systems can become rather warm.  Consequently, a circuit is usually connected in parallel with the storage battery to either connect a high-power shunt (in order to dissipate the excess solar power in the form of heat) or switch on__ 

Solar Revolver -  A single-chip solarroller circuit with reverse and turning capability; based on a 1381 SE.   __ Designed by Wifl Rigter

Solar tracker -  This kit monitors the position of the sun using two Light Dependant Resistors (LDR's) , and makes the decision to move the solar panel to correctly orientate to the sun.   The output configuration is called a H bridge which will drive a small electric gearbox up to 500mA at the input voltage (6 ..15V) , both forward and reverse.__ CdS Electronic

Solar Tracker -  I wanted to come up with a simple design that would be durable, cheap and easy to make.  if you have enough carpentry skills to make a bird house, you can build this tracker.   __ Designed by Rich Demartile

Solar Tracker Concept -  Make a very simple sun tracker to maximise electricity generation from a PV solar panel.   __ Designed by REUK-Renewable Energy UK website

Solar tracking control system -  Schematic only, no circuit description __ Contact Duane C. Johnson

Solar-Array Controller Needs No Multiplier to Maximize Power -  12/05/08 EDN Design Ideas:  Relying on the logarithmic behavior of transistor junctions to calculate power, this controller operates a photovoltaic array at its maximum power point Design by W Stephen Woodward, Chapel Hill, NC

SolarbotICs NV-Based -  uses a single IC (and it's a common one, too -the 74AC240) to give you motor drive in a single direction
 __ Designed by Wilf Rigter

Solar-Cell Converter Offers Positive Start-Up -  08/15/96 EDN Design Ideas:  Applications deriving power from solar cells often require a 5V power supply.  However, the cells typically provide a terminal voltage of only 0.8 to 1.4V with current capacity of 3 to 4A.  Most DC/DC converters can neither start with such low voltages, nor can they start under full-load conditions.  The two-IC  approach Design by Robert Badalian, Maxim Integrated Products, Sunnyvale, CA

Solar-Powered Home Lighting System -  This project suggests a system that uses solar power and LED lighting technology in a more efficient way.  Solar power systems use solar panels to convert the sun’s energy directly to...__ Electronics Projects for You

Solar-Powered Intruder Alarm for Sheds & Boats -  Most blokes have got a shed - or wish they had!  While many people have alarms for their home and cars, a lot of valuable stuff is unprotected in garages and sheds.  it needs protecting and now you can do it with this simple alarm based on a PiR sensor.  it's solar-powered so no mains supply is needed.  And let's not forget boats on moorings - they need protecting too.__ SiliconChip

Solar-Powered Lighting System -  Need lighting away from a power source? Try this one: it's ideal for your garden, shed or even a camp site.  With a 5W solar panel, a 12V SLA battery and a smart controller, it has 3-stage charging for the battery and Maximum Power Point Tracking (MPPT) for the solar panel.__ SiliconChip

Solar-Powered Lighting System, Pt.2 -  Last month we described the operation of our new off-grid lighting system, featuring free power courtesy of the sun!  Now we move on to the fun part: building it! __ SiliconChip

Solar-powered Motor runs on 10 nA -  18-Mar-04 EDN Design Ideas:  Designs for solar-powered applications with low-duty-cycle requirements can often rely on capacitors for energy storage in place of less reliable batteries.  Typical applications include solar positioning, telemetry transmitters, chemical pumps, data loggers, and solar-powered toys.  The circuit in Figure 1 can run a small pager motor from the output of a small calculator-type solar cell in near Design by Stepan Novotill, Victoria, BC, Canada

Solar-Powered Pedestal Lighting System -  This solar-powered pedestal lighting system uses power LEDs for lighting.  Solar energy is first converted into DC electricity by a solar photovoltaic cell and used to charge a storage battery.__ Electronics Projects for You

Solar-Powered Pump Motor Controller -  A Discover Circuits visitor had a problem.  He needed a simple on/off controller for his solar powered water pump.  His system used two 12v 50 watt solar panels wired in series.  The power from the solar panels drove a submerged water pump.  However, during. . . Circuit by David A. Johnson P.E.-October, 2010

Solar-Powered Sensor Controls Traffic -  26-Nov-09 EDN Design Ideas:  A traffic-sensor post measures vehicle location and speed at an intersection, providing an accurate, effective, inexpensive approach to monitoring traffic flow Design by Larry K Baxter, Capsense, Lexington, MA

SPC3 9 Amp in / 10 Amp out Solar Power Center -  The SPC3 is a solar power center, it can handle all of the power functions for a solar charged 12 Volt DC system.  The SPC3 contains a 9 amp photovoltaic charge controller, a 10 amp low voltage load disconnect circuit and a built-in white LED array for area illumination.  The low voltage disconnect circuit has a load on-off switch, and a battery low voltage indicator.  By using the SPC3 as the center of a solar powered device, long battery life is assured __ Designed by G. Forrest Cook

Switching Shunt-mode Solar/Wind Charge Controller -  This circuit is for a switching shunt-mode charge controller.  in a shunt-mode circuit, the solar panel is permanently connected to the battery via a series diode.  When the solar panel charges the battery up to the desired full voltage, the shunt circuit connects a resistive load across the battery to absorb the excess power from the solar panel __ Designed by G. Forrest Cook

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