Author Topic: Dave lawton pll  (Read 381 times)

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Re: Dave lawton pll
« Reply #8 on: August 01, 2021, 23:07:36 pm »
The feedback circuit transforms any incoming signal to a perfect square wave, if we apply a pulsed signal to a resistor (the cell)  throught an inductor, the signal across th plates will look as a triangle wave (if the inductor do not saturate), and at the output of the opamp it will be a perfect square wave.
This is a very useful circuit, I am building a speeduino board, and guess what I'm using for VR conditioner (crankshaft sensor) ? Meyer feedback circuit. It gives me a very nice 5v square wave.

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Re: Dave lawton pll
« Reply #9 on: August 14, 2021, 14:51:45 pm »
I think i have the most of the compenents now and also the pcb ;-)

In two weeks, it should be ready solderd