Sujet : Re: ac138
De : blockedofcourse (at) *nospam* foo.invalid (Don Y)
Groupes : sci.electronics.designDate : 19. May 2024, 08:43:25
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <v2c72p$38luj$1@dont-email.me>
References : 1 2 3 4 5 6 7
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On 5/18/2024 11:03 PM, Jasen Betts wrote:
On 2024-05-19, Don Y <blockedofcourse@foo.invalid> wrote:
On 5/18/2024 12:23 PM, Hul Tytus wrote:
Aught to be one somewhere.
>
Why? Can you imagine a variety of other applications where a three-bit-code
(and ONLY a three-bit-code) would need to be resolved to one of 8 high
current drives?
sprinkler timer, except they usually use AC instead of DC
Electromechanical ones drive the solenoids directly.
And, there is no real NEED for an "electronic" unit to
output a three bit code (plus enable!) instead of 8
discrete outputs (which also allows multiple zones to
be active simultaneously, including a "master valve"
required for ANY of the others to receive water). It's
easier/cheaper to buy an MCU with a few extra pins.
[I use three pins per valve: "pull-in", "hold" and "sense"
Now, where are the "other" applications in that "variety"?
ac138
Re: ac138
