Re: Multiplying Frequency




newsrichie@xxxxxxxxx wrote:
Hey guys I was wondering if you could help me with a little problem. I
am trying to design circuit that will multiply frequency by 1.15. I am
trying to interface a manual transmission speed sensor to my cars
automatic transmission computer. My main problem is that I need to
convert every 36.5 Hz to 43 Hz. The signal can be either be 50% duty
cycle TTL or sine wave. I did some research and found some ways you can
multiply TTL but it won't be 50% duty cycle. Can I resolve this by
using a jk flip flop. I also thought about using a LM2917 (frequency to
voltage converter) and a XR2206 function generator IC configured in
voltage to frequency setup. My problem with this that I need a negative
supply when all I have available is +12V. I also vaguely remember
something about a multiplier IC, but don't even know where to get
started with that. Thanks for any advice.
-Richard

A fairly trivial program for a 8 pin micro.

.



Relevant Pages

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  • Re: Multiplying Frequency
    ... am trying to design circuit that will multiply frequency by 1.15. ... cycle TTL or sine wave. ... something about a multiplier IC, but don't even know where to get ...
    (sci.electronics.design)

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