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Solar Energy
Circuits
Last Updated on:
Friday, October 16, 2009 03:43 AM
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Circuits Designed by Dave Johnson, P.E. : |
- Solar
Insulation Monitor: An
inexpensive PIN photo diode and a 1ma meter movement form a simple sunlight
intensity monitor. The sensor should be placed inside a lightly frosted
glass hemisphere to minimize the influence of the sun’s angle on the sensor.
An adjustment resistor calibrates the meter for a full scale reading under a one
sun condition. An unshielded two conductor cable links the sensor to the
meter movement. The sensor and meter can be separated by up to 200 feet.
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Links to electronic circuits, electronic schematics, designs for engineers, hobbyists,
students & inventors: |
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Solar Insulation Monitor - An inexpensive PIN photo diode and a 1ma meter movement
form a simple sunlight intensity monitor. The sensor should be placed inside a
lightly frosted glass hemisphere to minimize the influence of the sun’s angle on the
sensor. An adjustment resistor calibrates the meter for a full scale reading
under a one sun condition. An unshielded two conductor cable links the sensor to
the meter movement. The sensor and meter can be separated by up to 200 feet.
Posted ….(designed by David A. Johnson) |
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Solar Panel Charge Controller/Low Voltage Disconnect Circuit - Lead acid charger,
with battery voltage monitor, power comes from solar panels (added 5/02) |
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Solar Panel Current Meter - ….(electronic schematic added 03/08) |
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