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Tag Archives: solar
Garden lights have an interesting circuit. When you buy them in the store, they may turn on their LED when light hits the solar cells as they did for me. After you pull the tab out, and connect the battery to the circuit, they only light the LED when the solar cell is in the dark. Inside the housing of the walkway lantern is a small circuit board between the solar cell and the battery. This circuit keeps the LED from using up the electricity from the solar cell during the day, and when the input voltage falls below a threshold, the electricity stored in the battery is sent out to do the work of lighting the LED. Continue reading
The Mendocino Motor floats in its own magnetic field and converts light into electricity and magnetism, which are then converted into the motion of the motor.
Building and studying this project provides the satisfaction of creating an amazing bit of technology, and the opportunity to explore magnetism, electromagnetism, electric motors, solar power generation, and personal manufacturing.
Build the base that holds the magnets and provides a bearing point for the motor. Then wind the motor coils, and solder them to the solar cells. When the motor is assembled, you’ll balance it so it spins freely, and perform any troubleshooting to make it work Continue reading