Re: circuit design help: momentary switch activates/cancels electronic switch



On Fri, 14 Oct 2005 11:34:21 -0400, Spehro Pefhany wrote:

> On Fri, 14 Oct 2005 15:20:24 GMT, the renowned Rich Grise
> <rich@xxxxxxxxxxx> wrote:
>
>>On Fri, 14 Oct 2005 12:41:23 +0000, Fred Bloggs wrote:
>>> Fred Bloggs wrote:
>>>> [op wrote:]
>>>>> Okay, thanks for all the replies. Sorry to change things up on
>>>>> you...but like I said early on, this is a learning experience for me.
>>>>> It has occured to me that I don't want to worry about contact bounce
>>>>> and that in reality, this will fit my application much better if there
>>>>> are 2 momentary switches. pressing one of them turns the system on and
>>>>> pressing the other turns the system off. i can probably adapt this
>>>>> setup somehow from some of the provided circuits, so I will look into
>>>>> it. this might actually simplify the circuit too i would think.
>>>>
>>>> IF your load is inductive, non-resistive, or capacitive then something
>>>> like this would be better:
>>>> View in a fixed-width font such as Courier.
>>
>>[circuits snipped]
>>
>>Boy, that sure is a lot of stuff, when it could be done with an RS
>>flip-flop.
>>
>>Cheers!
>>Rich
>
> Does RS even sell chips any more?
>
> ;-)
>
LOL!

But, just because I'm in a bluff-calling mood, yes:
http://support.radioshack.com/productinfo/DocumentResults.asp?sku_id=276-2816&Name=High-Speed%20CMOS%20Logic%20ICs&Reuse=N
(mind the wrap)

Cheers!
Rich

.



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