Comment by periblepsis on How to avoid short circuit on battery wires on a...
Create a removable structure that has the connectors and wires sealed within a physically solid insulator block. Use spring loaded pressure contacts to the battery. Pull the structure and shelve it...
View ArticleComment by periblepsis on BLE interference from DC motors
@thrandale Brushed DC motors, running, completely surrounding a BLE in a thin can. I'd love to see the scope results using a directional antenna pointing at it while running the motors and connected...
View ArticleComment by periblepsis on What are stability limits for smps? Shall we beware...
This question seems very similar to your last one. Is this materially different? Or generally in a similar vein?
View ArticleComment by periblepsis on Reducing a given truth table with don't cares at...
Start by doing a google search: espresso logic minimizer algorithm pdf
View ArticleAnswer by periblepsis for Reducing a given truth table with don't cares at...
I'm assuming you already can produce the k-maps just fine. But you are looking for iterative (and they are iterative) algorithms dealing with cover on the hypercubes up to 6 dimensions, or so. You will...
View ArticleComment by periblepsis on Solid state relay in parallel with mechanical relay
Yes, I think you will find material on hybrid relay systems that work similarly. I'm doing it myself. However I use pairs of SCRs, rather than TRIACs/SSRs.
View ArticleComment by periblepsis on Battery-powered device: trade off between voltage...
I'd recommend with emphasis that you focus in a single cell and use a boost switcher. Assuming a single cell can meet your 20 cycle minimum or better, of course.
View ArticleComment by periblepsis on Microwaves going through a hole - attenuation?
@DirkBruere Aren't there already holes in microwave oven doors? Have you tested your sensitive equipment near one to provide some initial experimental results to consider?
View ArticleComment by periblepsis on Measurement of small signal voltage of switched...
Would a low pass filter designed to remove just the high frequency ripple be appropriate before attempting measurement?
View ArticleComment by periblepsis on AVR Carry Flag ADD / SUB
What is the question, exactly? You start by saying you have a question. But it just ends with your opinion. So is it that you only seek opinions on your opinion? Because I do have an opinion on your...
View ArticleComment by periblepsis on How to calculate LED voltage and current based on...
A much cleaner scan with that chapter in full context can be found here.
View ArticleComment by periblepsis on Two pole DC circuit breaker as a normal switch
I just want to double-check.... DC breaker for sure? Or AC circuit breakers, like those used in household electrical entrance panels? I see the polarity shown on your diagram. And that strongly argues...
View ArticleComment by periblepsis on STM32 square wave fluctuating
You fix it by completely re-designing and then re-writing the code. If you want precision you will use peripheral hardware and a timer. Even then there will be tiny variations as the rising and falling...
View ArticleComment by periblepsis on LTspice: triangle wave circuit not producing any...
@Abstract Also, for reading material, try this as well.
View ArticleComment by periblepsis on How to use an emergency button for an SSR...
Just curious. Why not break access to the power source using the emergency switch? This would seem to the more direct approach. Another approach would be to consider the conditions under which the...
View ArticleAnswer by periblepsis for How to calculate LED voltage and current based on...
You've got a number of resonances by others on your question. But I'll dive directly in to demonstrate that it's not an assumption by Tinker.The Shockley diode model can be simplified for these...
View ArticleComment by periblepsis on Solving differential equation for an RL circuit
@LarsSmith I didn't want to take your approach (would take more of time I don't have.) Rather, I chose to follow what's in Section 6.3, "Undetermined Coefficients and the Annihilator Method" from the...
View ArticleComment by periblepsis on Is there a rule for assigning polarities to...
Be aware, though. In your specific circuit, just ignore the right side power supply (remove it.) Then you find that the voltage across the 12 Ohm resistor is 12/(12+4+2)*45=30. So there will be no...
View ArticleComment by periblepsis on How to find a characteristic equation for the...
I'm busy today. But you might read some of my scribbles here. Not too distant from this.
View ArticleComment by periblepsis on Calculate the absolute value difference in work...
No drawing or diagram, so I am still struggling to imagine what the problem actually proposes. Sounds like to independent junction diodes (but might be Schottky, for all I can tell) with perfect...
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