Ceiling fan motor controller

Produced for

Cadac Ltd



Project details

This controller had a AC-DC converter whose output was modulated by a microcontroller to control speed and comutation noise. It used a 87C752 processor for the final controller. During development I used a 87C552 and added code to allow it communicate with a PC. The PC was then set up to download modulation waveforms to the controller to allow real time noise testing. I wrote a LabView program on the PC to allow graphical adjustment of the waveform and send it to the controller. Functions where added to the LabView program to generate custom sine waveforms speeding adjustments.

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