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Cooling Fans Speed Control (DC Motors),PIC32 OTG
02-07-2013, 05:42 PM, (This post was last modified: 02-07-2013, 05:42 PM by RobertoB.)
Cooling Fans Speed Control (DC Motors),PIC32 OTG
This is a project I did for an art installation, visit this website for the full text:

A recent art project dealt with the application of switching loads on and off. These are in fact DC motors or cooling fans for practical terms. They were used in this installation.

Basically, what we wanted was to create a wind composition with these fans, by turning them on and off. The design has 3 groups of 5 cooling fans each. The idea is to control them, switching them on and off, with different combinations, so that the resultant direction and intensity of the wind creates the composition. This post depicts what the application was like, mentioning the materials, and procedure, with a little theory. In short, a microcontroller generates the control signals, later used by a set of transistors to switch the fans on and off. The speed of this switching translated into variation in voltage, i.e. variation in speed of the fan.

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