Comment by periblepsis on Low-Pass Filter on an ADC Input Measuring DC
What's the range over which the DC is allowed to be measured? How quickly can the DC change and by how much and yet still need to be captured before the 2nd following measurement takes place? How much...
View ArticleComment by periblepsis on Capacitor selection for switched power supply repair
Peter, unless the manufacturers specify a \$\pm\$ for their ESR, I would consider those two values as equal. Also, a lower ripple spec might be all it takes to specify just that much longer lifespan...
View ArticleComment by periblepsis on Digital bandpass filter design with python
All that you've given us are the end results, some code, and some math. If I had your knowledge and experience with c++, python, the math for what you need to achieve, and had end results that didn't...
View ArticleComment by periblepsis on How many cycles of instructions are needed to...
What's a cycle, exactly, as you see it? The clock itself? Or, for example, would the 12-clock 8051 single-cycle period work for you? Do you permit co-active pipelines? Or are they forbidden? Do you...
View ArticleComment by periblepsis on How will capacitors C1 and C2 charge in this circuit?
Assuming the source starts at 0 A and jumps to 5 A, wouldn't the eventual result be that all 5 A goes through R so that C1 has a fixed voltage drop across it and C2 is forced to continue absorbing all...
View ArticleComment by periblepsis on Calculations for a Two- Stage CE Amplifier design
If you look towards the bottom of the answer here, you will see a very similar circuit mentioned. The analysis is relatively easy. Here's a schematic that includes a few parameters to set things up for...
View ArticleComment by periblepsis on What is wrong with this automatic night light circuit?
Rafia, Your circuit doesn't work. You want others to figure out exactly what you want to happen (for which all you say is that something "right" should happen when light hits the LDR) and to work out a...
View ArticleComment by periblepsis on Why DSSS is not used in IoT application? (comparing...
Ask ChatGPT your question about its answer.
View ArticleComment by periblepsis on Is it necessary to store the stack pointer when...
You are mixing up hardware and software roles. Reality is a lot more nuanced than you seem to imagine. But let's get straight to your idea of saving "the stack pointer on the stack while switching for...
View ArticleComment by periblepsis on Would long distance Franklin Bells work?
User, Why don't you write Clarendon and just ask them. I'm sure they have someone on staff who understands the system well enough to be able to help you with a precise answer to your question. They may...
View ArticleComment by periblepsis on Rail splitter with LM324
You covered a reasonable number of options and that TLE2426 might be okay for some 9 V battery situations given its output current compliance.
View ArticleComment by periblepsis on How to Express a Complex Voltage Solution in the...
Steinmetz used a slightly different approach in his 1893 paper, Complex Quantities and their use in Electrical Engineering, than we use today. But close. Both he and Heaviside provided our modern...
View ArticleComment by periblepsis on What is the purpose of the two parallel resistors...
@ABitofHelp Can't be about Johnson noise as the two would produce the same as their parallel equivalent. Since I can't come up with something better to offer, it seems to be about dissipation as...
View ArticleAnswer by periblepsis for Is it necessary to store the stack pointer when...
Let's start with your last point for your desired answer-context:my question above is strictly for bare-metal case.Then let's look at the central question:why is there a need to explicity save the...
View ArticleComment by periblepsis on Help with designing a 20W audio power amplifier
@AlfieWren-Swords Have you studied the LM380 and LM386 circuits, yet?
View ArticleComment by periblepsis on Help to identify mystery MCU
In just taken aback by how that crystal is mounted and its long leads.
View ArticleComment by periblepsis on How to Express a Complex Voltage Solution in the...
@PhilFreedenberg Thanks for the correction. You are right. I've modified my answer.
View ArticleComment by periblepsis on Curve Fitting of Non-linear equation
Mayand, How are the measurements made? What does the noise look like? Is the noise independent or dependent on the magnitude of the measurement?
View ArticleComment by periblepsis on How to dim an incandescent bulb - voltage divider...
@DinsdaleTrelawney That's a microscope lamp with a vertical coiled filament. Is this the application? For human visual only? Or photography? Or still more? The more detail about the range of...
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