Hall effect signals...

[eric schumacher]

No my brother's name is Gary and he lives on LI NY.

In general it is bast to tap into an existing system at as high a level as
possible although the hall signal is pretty noise immune.

Lotsa Luck Eric
At 06:28 AM 2/23/97 +0000, you wrote:
>On Fri, 21 Feb 1997, eric schumacher wrote:
>> 
>> Hall sensors of the automotive type in general and the VW type in particular
>> are three terminal devices.  One terminal is ground, the other terminal is
>> Vcc ( about 6 VDC in the case of VW) and an open collector output. A CD4049
>> with suitable protection on its input will make an ideal interface since
>> unlike most CMOS devices it is permissible to raise an input above the chips
>> Vcc.  Note also that Bosch ignition controllers provide a tach output that
>> is a little more robust than the hall output.
>> 
>> Lotsa Luck Eric
>> 
>Thanks Eric, I never even though of the tach output.  Say, you don't have 
>a brother named Michael, do you?  :)
>
>Seth
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