Archive: 2 posts

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OK I am nearly there with my analogue logic toolset, here's what I have so far: Equals - Compares two analogue values, outputs 100% if they are the same, 0% otherwise - Works with signed values - Most likely won't work with super-normal signals - Zero latency, outputs the value in the same frame it was input, gives it greater applications when dealing with continuously changing values Equals with Tolerance - Works as equals but has 3 inputs - x, y and t - 3rd input controls tolerance for x and y to be considered "equal" - Symbolically, outputs 100% if |x-y|<=|t| and 0% otherwise - Works with signed values, though t is taken as modulus - Zero latency Less Than (Less Than or Equals To) - Compares 2 values x and y, outputs 100% if x<y (x<=y respectively) and 0% otherwise - Works with signed values - Less Than is just a Less Than or Equals To with the inputs swapped and the output inverted, but I've made both chips for convenience - Zero latency Addition (Subtraction) - Adds (subtracts) two values x and y - Works with signed values - Results that overflow are truncated at -100%/100% - Thanks go out to rtm223, this is basically his implementation optimized - Zero latency Multiplication - Approximates multiplication of two values x and y, treating 100% as 1.0 - Works with signed values - Still needs a little bit of work to improve accuracy (currently multiplication by 100% does not yield the same value) - Accuracy is nonetheless around 1-2% - Surprisingly low thermo (less than half a notch) - And yes, zero latency - the multiplication is calculated within the same frame that the input is. Now any suggestions for what I should add to this list? Or is there enough there? I can tell you these little gadgets could be really helpful (well OK multiplication not so much but I just wanted to prove I could do it ).

2011-03-30 20:33:00 Author: thor Posts: 388

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Hmm... make it as simple to understand as you can manage. That's all I can say!

2011-03-30 20:52:00 Author: damaz10 Posts: 771

Posts: 1077139    Threads: 69970    Members: 9661    Archive-Date: 2019-01-19

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