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| General Electronics Chat This forum is for general chat about electronics, eg: Dont know what a part does? Dont know how to read a circuit? Want to get an opinion? |
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1. What is a Schmitt Trigger? 2. What is a Schottky? (and how is it pronounced?) 3. What is a compariator, how does it work? Is it digtial? What could they be used for? | |
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How about "What is google?".
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Comparator outputs a 1 or 0 depending if one input signal is higher than a second signal (a comparator compares). SChotky is a type of very fast, low forward drop diode, with high leakage currents. It does this by a metal-silicon junction if I remmeber right, rather than a silicon-silicon junction (you need to know a lot more to understand the details). Schmitt trigger means that there are two separate thresholds between a 1 and a zero, not just one. It provides noise immunity. If 0V is the threshold noise might make it be + or - and it would jump between 1 and 0. With Schmitt, it's kind of likey you need to pass -1V to go from 1->0 and you need to pass 1V to from 0->1. Google explains it much better. | |
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1. What is the meaning of life? 2. What is the purpose for trillions of stars? 3. What is a Creator? How does He work? Is he diety? What could we be used for in the Master Plan?
__________________ Don't make me reach through this monitor to slap you a good one! Last edited by HiTech; 3rd August 2006 at 08:46 PM. | ||
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3 - Comparators have analog inputs and a digital output, usually open collector. What does "open-collector" mean, that's your homework for this evening. | ||
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If you were just saying that my questions should be answered from Google, three people have already said that. ![]() Quote:
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2. digital I second the 'use google' motion. Your spelling will need to be pretty close to get hits in google. | ||
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Poopeater is taking it out on you because he must be very miserable now, living in the middle of a dezzert in Phoenix AZ in the middle of summer. I was there and boy oh boy oh boy oh boy is it ever hot there. There are lizards running around all over the place!
__________________ Uncle $crooge | |
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I learn school that an op-amp can be configured to work just like a comparator. The difference is that op-amps are slower. Please clarify me if I am wrong. | |
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@Mark: People who can read should take advantage of this fine skill. What did I just say!? Do a search in google before you ask in a forum! Plus that you really should join an anti-aggression-therapy Quote:
__________________ iČ = jČ = kČ = ijk = -1 | ||
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Of course an opamp can be used for a slow comparator, but its output isn't an open collector. Maybe Mark comes from a part of his city that has many non-english-speaking people and their bad spelling is rubbing off on him. Maybe his teachers are non-english-speaking.
__________________ Uncle $crooge | |
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Last time I was in graduate school all the professors were non-native speakers of English.
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