Comment by periblepsis on Is there a way to get more than a 0.5 V spread in a...
Yeah. This is the better answer.
View ArticleComment by periblepsis on Use the lower of two voltages when one is active
Steve, write something to your answers here. Help others help you.
View ArticleComment by periblepsis on Driving low power LEDs from pre-biased digital...
@EdL You don't want boutique parts, it seems. Read this EESE answer for details.
View ArticleComment by periblepsis on Designing a 12AU7 Tube Preamp with Stable 120V...
Old tube supplies, those I built and those I copied from decades ago, were mostly a series resistor (high wattage) paralleled to a series inductor (heavy and big) and capacitors with bleeder resistors...
View ArticleComment by periblepsis on Is it possible to simulate a CRT tv?
If you have ever seen the bright dot of an oscilloscope moving left to right (set to a slow sweep) then that's what is actually taking place on a CRT. That bright dot is very easy to pick out with a...
View ArticleAnswer by periblepsis for How to derive voltage gain in Common Emitter CE npn...
derivationAssuming their simplified model for the collector current and a grounded emitter case, I'll get directly to your question and derive \$A_v\$ from the large-scale...
View ArticleComment by periblepsis on Parallel RLC Second-Order DE Ode45 Matlab
Write more. Lots more. I've no idea what ode45 or what you are supplying it. My crystal ball never has worked well. So help us out by writing as much detail as you can.
View ArticleComment by periblepsis on What factors contribute to LED degradation over time?
The book you want to buy and read is "Optoelectronics: Fiber-Optics Applications Manual" from Hewlett-Packard, 2nd edition. I may have bought up most of them, all I could find at the time. My...
View ArticleComment by periblepsis on Needing help with a design assignment
The facts I see: (1) indicator lights, but no information about what they indicate; (2) reverse polarity protection on the input, which suggests it's not AC but has a DC bias to it or is pulsed DC --...
View ArticleComment by periblepsis on Simple Voltage Divider w/ Diodes
Here's how to perform the computation. RS, ISAT, and ETA are parameters for the diode. VT is the thermal voltage. N is the number of series diodes. VCC is the voltage rail. The LTspice simulation text...
View ArticleComment by periblepsis on Datasets of Electrical Resistance Network Diagrams...
Why not just write a little software that uses a loop from N=1 resistor to N=?? number of resistors and that generates all of the possible directed graphs? The math for solving them is trivial. I could...
View ArticleComment by periblepsis on Common electronic circuits
Read and study the areas you care about. Start with one topic, go as far as you want in that topic, then move to another. In this case, I guess you should start with low power AC to DC power supplies...
View ArticleComment by periblepsis on Double audio output
Sounds like a device that acts as a USB slave and provides USB hosting. Not sure if there's enough of a market for this to have attracted the up-front capital investment and on-going support. Perhaps...
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Answer by periblepsis for Calculate current with Thévenin's theorem
The left, middle and right sections below are identical:simulate this circuit– Schematic created using CircuitLabA current source has infinite resistance. So it is perfectly valid to break it into two...
View ArticleComment by periblepsis on Software to get transfer function from a schematic
Thanks for demonstrating this software and making me aware of it!
View ArticleComment by periblepsis on SuperNode when there is a reference node?
Cblue X, I'm just a little confused by your writing: (1) "i used the concept of 'SuperNode' in the V1 branch and i it got solved right"; and, (2) "the supernode V1 that i considered cant actually be a...
View ArticleComment by periblepsis on Input of RC low pass filter from the output
The computed input signal will be noisier than your measurements, given the division operation. But otherwise, generally yes. Have a look in one of the versions of "Numerical Recipes" where they...
View ArticleComment by periblepsis on SuperNode when there is a reference node?
@ThePhoton The author hasn't written out their process. So all I can do is hope it may. I already admitted my confusion in comments.
View ArticleComment by periblepsis on Stuck on Thévenins algorithm
@iamLost Looks good to me! Very nice! :) Best wishes moving forward. I have great hopes for you! I'll add +1 to your question.
View ArticleComment by periblepsis on Which flyback diode to use?
If I'm following you, you want to complete this in a way that you can forget about it, secure in knowing that it will perform well over time. If so, then it is worth the time and cost to perform some...
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