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You May Also Like: It would work a as a comparator, but it would be a waste. Jan 11, 3.
Do you already have an account? I couldn’t find a datasheet for LM Mar 30, 7, 1, Posted by dougal in forum: Jan 12, Your name or email address: That brings me to a new question, what datasheet specs should I look for in a comparator?
Jan 11, 4. You need an IC made to run on a single supply.
LM 데이터시트(PDF) – First Components International
Could you draw in the resistor values and show how the power is applied? Jan 11, 6. My questions are essentially: Sep 13, 2, 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? Nov 23, 8, 6, Dec 29, 1, Circuit parameters for multiple waveguide geometries are shown.
Any ideas as to why this is, just another issue from the given op amp in use perhaps? Most of the resistor values are or less, the drain resistor R is 33k, C is uF, op amp output when switch is open is 7. 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.
Jan 11, 26 0. Jan 11, 8. Wayneh, this is the configuration in which it is currently operating. Also, I am trying to stay away from IC’s so I can get a better handle on transistor switching first time using them but any ideas with them are welcomed so i know for future use.
Boy, is that an ugly IC. Sep 9, 15, 5, Right now I’m just using LEDs to test the circuit and will get adequate components to run the motor, and I removed the resistor from the output to the base. I don’t understand what you mean about setting Vcc to -9V.
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Jan 11, 2. Aug 12, 2, Op amp as comparator Posted by nickyoko21 in forum: Jan 11, 7. Just double xatasheet, it is an LF Hey guys, Ive just started to dabble with electronics and thought that this would be a good project to learn about transistors.
A comparator like mentioned in post 9, or if you want to use an op amp an LM would do it. And everything is great with the split supply, but you get odd behavior when V- is ground? Thanks for all the datsaheet, I’ll order some proper comparators in the morning.
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I think your datasueet may be that the inputs can only work at 3 volts above the negative supply. Using a phototransistor as input into comparator Posted by connellyw in forum: All references gave me LM; which wouldn’t make a good comparator. Delay using LM as comparator Reply to Thread. Quote of the day.
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Nov 23, 2, Any info you can give me on operation is much appreciated as well as any other circuit ideas. I assume LM op amp? Jan 11, 5. Nov 12, 3, 2, Yes, my password is: Why does -9 work?