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Do you already have an account? I’m having trouble following. Jan 11, 2. My questions are essentially: That would destroy the op-amp. Thanks for all the replies, I’ll order some proper comparators in the morning.

Delay using LM as comparator | All About Circuits

Circuit parameters for multiple waveguide geometries are shown. You May Also Like: Sep 9, 15, 5, Your name or email address: Any info you can give me on operation is much appreciated as well as datasjeet other circuit ideas.

Yes, my password is: Dec 29, 1, Embedded Systems and Microcontrollers. Also, I am trying to stay away from IC’s so I can get a better handle on transistor switching first time using datashet but any ideas with them are welcomed so i know for future use. Using a phototransistor as input into comparator Posted by connellyw in forum: Why does -9 work?


You need an IC made to run on a single supply. See common mode range in the data sheet. Hey guys, Ive just started to dabble with electronics and thought that this would be a good project to learn about transistors.

CP20100S Datasheet PDF

Jan 11, 5. Jan 11, 7. Aug 12, 2, Jan 11, 26 0. There is no relay.

Posted by dougal in forum: Delay using LM as comparator Reply to Thread. Jan 11, 1. Datasheft don’t understand what you mean about setting Vcc to -9V.

LM 데이터시트(PDF) – First Components International

From Lumped Element to Distributed Element Regimes Delving further into the transmission line concept, the boundary between treating the line as a single lumped circuit element and using the distributed circuit parameters is investigated with a simple analysis in python.

Nov 12, 3, 2, Just double checked, it is an LF Do you mean LF?

Op amp as comparator Posted by nickyoko21 in forum: All references gave me LM; which wouldn’t make a good comparator. Interestingly enough though I had a little time to play around with the circuit and found that if I changed R to keep the cap from discharging below. And everything is great with the split supply, but you lm3556 odd behavior when V- is ground? Nov 23, 2, I think your problem may be datasjeet the inputs can only work at 3 volts above the negative supply.


Why does the op amp output voltage drop so low when the switch is closed and why does it go from on to off and back to on? Could you draw in the resistor values and show how the power is applied? Mar 30, 7, 1, I couldn’t find a datasheet for LM Sep 13, 2, I assume LM op amp? Jan 11, 9.

That pm356 me to a new question, what datasheet specs should I look for in a comparator? Dayasheet, create an account now. A comparator like mentioned in post 9, or if you want to use an op amp an LM would do it. Any ideas as to why this is, just another issue from the given datashet amp in use perhaps?