Answer by periblepsis for Two formulas for defining RMS and average of a...
RMS is, by definition, about power. For current or voltage it is about finding the equivalent that would dissipate the same power in a resistor if administered as a DC level. Since power is...
View ArticleComment by periblepsis on Homemade Darlington for NEMA 23 motor
There's an EESE discussion on the topic from a couple years back. May be worth a read. There's also this commonly referenced youtube video illustrating one of the methods mentioned in one of the...
View ArticleComment by periblepsis on Can a high-precision, low-current voltage source...
I think you need to write a lot more. When I see \$\lt 5\:\mu\text{T}\$ (earth's field is 10X that) written down as casually as one might write a whim, without much else said and nothing at all about...
View ArticleComment by periblepsis on If electromagnetic waves are indeed created by a...
@VishwaMithraTatta You may want to read about the ultraviolet catastrophe. It was numerically solved, eventually, by Max Planck in 1900. But wasn't explained until Einstein, about 5 years later. (Not...
View ArticleComment by periblepsis on is the current \$I_1 = I_{gs}\$ and \$I_2 =...
@kile You've got papers I handed to you earlier. One from Meyer, 1971. Another from Cirit, 1989, revisiting Meyer's work and discussing how to modify Meyer to conserve charge. I can't speak for others,...
View ArticleComment by periblepsis on Switching 5 kV for a neon sign
@DarcyThomas Interesting question. Have a look at this site. I took particular note of this comment, "Thus the typical switch-on behavior ... is that it gives a feeble steady light initially (no...
View ArticleComment by periblepsis on In a high voltage insulator with multiple discs,...
James, so many things come to mind. These are solids and air and placed in a variety of circumstances. But at bottom are details of the field strength in the air around it, I think. That doesn't help...
View ArticleComment by periblepsis on Modifying TI schematic to learn more about amplifiers
What level and range of sounds, at the microphone transducer, do you expect to experience?
View ArticleComment by periblepsis on How can i sovle this mesh circuit by source...
Two things. (1) There is a schematic editor available to you (mostly -- depends on cell phone, etc.) If you can use it, you should. There's little excuse providing a grainy picture like that. (2)...
View ArticleComment by periblepsis on One thing I don't understand about the diode graph
@manrupe See these additions to see if this helps you at all.
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Answer by periblepsis for Is this the correct way to create a circuit that...
If you look at your own logic block, it's easy to see that it only has four inputs and one output.So just make a module out of the red-circled portion, like this:I'll call it GB for now.Then the 7-bit...
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Answer by periblepsis for How can i sovle this mesh circuit by source...
Let me give you a start:Your are told that \$V_1\$provides\$32\:\text{W}\$ power. So this tells you the upper-right mesh current must be \$2\:\text{A}\$ and it must be positive in the indicated...
View ArticleComment by periblepsis on What's the function \$ f(V_G, V_S)\$ and \$f(V_D,...
@kile Read your own title to your question. You bring his model up. I gave you his paper. It isn't for me to explain. Connect your question into Meyer or otherwise show your development or other source...
View ArticleComment by periblepsis on A system where PID control fails
@DSPinfinity Variable and long delays are notoriously hard for PID. So are processes with undamped oscillatory poles (especially bad in this case with load disturbances, less a problem with setpoint...
View ArticleComment by periblepsis on How do we measure inductance with a DC source?
Rohinb97, I suspect they wanted to know if you were ever driven into doing anything like this. When I got my first scope (Tek 2104) perhaps one of the first things I wanted to learn to do was to...
View ArticleComment by periblepsis on Norton equivalent current source direction in this...
@amit You aren't, but assuming you are thoroughly familiar with transforming between Norton and Thevenin, then: (1) V1 & R1 --> Ix & Rx; and, (2) Iy replaces Ix+I1; and, (3) Ry replaces...
View ArticleComment by periblepsis on How to optimize wavelength of a photodiode...
What exactly do you mean by optimize? The diode already covers the wavelength. Just keep out interfering wavelengths that it is sensitive to. If you haven't already considered the idea look up...
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Answer by periblepsis for Norton equivalent current source direction in this...
Okay. You got the direction right with \$R_1\$ and the current source to the left of it!!! This is great!Let me suggest some help now:I didn't take everything you did in your update. Just the \$V_1\$...
View ArticleComment by periblepsis on Why is the Relay "Chattering"?
Did you design in some hysteresis? (I'm not looking yet. Just asking as it is the first thing that comes to mind when you talk about levels and chattering.)
View ArticleComment by periblepsis on How do I know the appropriate tension to feed it?...
@FabioBarone It's just a chinese version of the 2SD882. It sounds as this person wants personal tutoring, for as long as it takes, to use this part they can get to drive a speaker. All I can guess is...
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