Wyrd Tha Byrd

This is exactly what it says it is, a Pulse Width Modulation based fan controller specifically designed to work with 12v fans but can be scaled up to 24v with a DC wall wart.

The Kirbine contains two sets of logic, one 2 bit ADC made out of a data flip-flop package that was converted to toggle mode, and the 12 bit tachometer processor that reads out through an LED that blinks at the rate "R." T is the actual rate of the fans hall-effect tachometer sensor output. The aforementioned sensor is picking up on two signals per rotation, so more correctly the initial input is at most 1600Hz for a 200mm fan, which translates to 800Hz actual rotation cycles of the fan blades. The resulting logical end to the 12 bit binary division of this is .39Hz.

That last circuit I was simulating is now built into this design, and now I'm working with a PCB manufacturer to get a set of these built on a pick'n'place machine! It's looking like the cost should be around 30$ instead of my first design which would have costed 170$ to make.

The lengths we go to for the ones we love... in this case the one I love is my lungs, bc ya girl needs a fume extractor and this should work. A solid 50kHz Twin-T oscillator as well as a clock divider because why shouldn't a fan be a also be a modular clock output‽ I got 64 bits on there babyyy, nobody needs that many bits in a fan but why not?‽?

model JL Darnell
camera bmpcc6k with canon EF 24-105

Mother's are the soil that help us bloom.
Filled with love, nutrition and a life all their own.
Mother's have brought water to our lips,
Bought clothes for our hips.
Mother's are irreplaceable, but that doesn't mean a new garden transplant isn't family!

Patience is a virtue.

There is power in a sprout, soft and gentle; capable of growing anywhere. It just takes the right conditions to bloom.

An afternoon jaunt amongst the blossoms

Praise the sky gods!

Take a moment to stop and smell the flowers with me as I take a step away from my desk!