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10 Amp Solar Charge Controller - (electronic circuit (added 11/06) |
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12 Volt 20 Amp Solar Charge Controller - (Schematic added 11/06) |
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13 Volt 6 Amp Solar Power Center - (Circuit added 11/06) |
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1381 Solar Engine - (circuit design added 8/03) |
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1381-based Solar Engine - Voltage-Controlled Solar Engine: Two simple solar engine
designs using a 1381* voltage discriminator. (added 11/05) |
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14 Volt Toilet Tank Refiller - (circuit design added 8/03) |
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555-based solar engine - Time-Controlled Solar Engine: a solar engine design using
a 555 timer IC (added 11/05) |
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5v Solar Charger - This project uses the 1.2v rechargeable battery and solar panel
from a Solar Garden Light. These lights can be bought for less than $5.00 in most
$2.00 shops or similar shops that sell general household items diagram….(circuit added
05/07) |
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A simple solar panel regulator - Solar panel regulators come in many flavors. The
plainest flavor is the simple on-off type shunt regulator. It has the advantage of
simplicity, extremely small power dissipation, low cost, high reliability, but in
exchange for these advantages one has to accept that the voltage on the battery is
always going slightly up and down, that the battery is switched between full charging
current....(electronic schematic / circuit added 08/09) |
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A Solar Cell Battery Charger - A Simple Regulator for Charging Lead Acid Batteries
from a Solar Cell....(electronic schematic added 12/08) |
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AA Battery Solar Charger (Solorb) - This almost trivial circuit may be used to
charge a pair of AA or AAA sized cells in sun….(added 5/02) |
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Battery Low Voltage Beeper - This circuit provides an audible and visual low
voltage warning for 12V battery powered devices. Idle current: 6ma Low Voltage Warning
current: 15ma… (circuit design added 8/03) |
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Broken Solar Panels - As illustrated below, one way to salvage a large number of
broken solar cells is to wire them in parallel, not in the more conventional series
connection. Broken cells of various sizes and shapes are grouped together into panels
of about one quarter to one full square foot in area. Those panels are then wired in
series with other similar panels. The result ….(designed by David A. Johnson) |
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Buck Mode Switching Regulator for Solar Applications - (diagram added 08/08/08) |
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Build Your Own Solar Battery Charger - (circuit added 6/07) |
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Chloroplast Voltage Controlled Solar Engine - Voltage-Controlled Solar Engine:
These designs are based on the Motorola MC34164-* micro power undervoltage sensing
ICs. They're pretty efficient, work at higher voltages than most solar engines, and
can provide voltages for other logic circuits (say, a microprocessor). This page hosts
the original Chloroplast by Craig Maynard, as well as some Chloroplast variants by
Wilf Rigter. (added 11/05) |
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Clock with Timer & Solar Panel Regulator - This is a combination clock timer and
solar panel charge controller used to maintain a deep cycle battery from a solar
panel. The timer output is used to control a 12 volt load for a 32.... (added 2/07) |
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Converting Light to Digits: LTC1099 Half-Flash 8-Bit A/D Converter Digitizes
Photodiode Array - AN33 Linear Technology This application note describes a Linear
Technology "Half-Flash" A/D converter, the LTC1099, being connected to a 256 element
line scan photodiode array. This technology adapts itself to handheld (i.e., low
power) bar code readers, as well as high resolution automated machine inspection
applications. (app note added 6/06) |
