Society of Robots - Robot Forum
Electronics => Electronics => Topic started by: hazzer123 on January 17, 2008, 07:57:25 AM
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I have seen many circuits which have buffer chips in them like the 74HC244 (http://www.ortodoxism.ro/datasheets/philips/74HC_HCT244_CNV_2.pdf).
I really don't have a clue what these chips do. They seem to have input pins and output pins, and the output pins just mirror the input ones. I get this idea from the top part of THIS PAGE (http://hyperphysics.phy-astr.gsu.edu/hbase/Electronic/buffer.html).
Anyone help?
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A few reasons you'd want to use it.
Basically a buffer keeps one circuit from interfering with another circuit. This eliminates cross talk and electrical noise (which can cause a whole list of potential problems).
Also, sometimes one circuit might send voltages that could damage another circuit, and so a buffer keeps that from happening.
An optical buffer is like the ultimate type.
I've only needed a buffer like once or twice ever . . . I wouldn't worry about it unless you are doing highly sensitive electronics stuff.
Details:
http://en.wikipedia.org/wiki/Buffer_amplifier
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An optical buffer is like the ultimate type.
maybe you're referring to an optoisolator.
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ya
(I seem to be having terminology issues lately :P)