Comment by periblepsis on Configure an op amp with 500 v/v gain with at least...
Elizabeth, should the output be single-ended (not differential) and able to both sink and source current (2-quadrant active drive?) Does it have to support the 1 kHz I see there and deliver a slew rate...
View ArticleComment by periblepsis on Trouble Understanding CE Amplifier
You write: "I will spare the details." But don't spare the details. That's the problem. How can we figure out where you are going wrong if you won't show us your process? Alternately, you can read this...
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Answer by periblepsis for How to get Transfer Function from R to Y?
I'll take the following as your question:I can group G2 and G3 up by doing G2/1+G2G3 Correct?(The rest is wide open and you haven't shown any work to examine.)I believe your approach was to perform the...
View ArticleComment by periblepsis on Help me optimize common collector transistor...
@huababua Not that I understood anything I just glanced at, but does your last comment here mean that everything has been resolved?
View ArticleComment by periblepsis on Help debugging a chicken coop door problem
Use 91% isoprop. And make sure there's no added oils. Just water.
View ArticleComment by periblepsis on Proving the output voltage expression
I believe there may be a significant error in the diagram. Do you have the R1+R2 divider tied to the (+) input? If that is what's really at some site or book, you should reference it because I don't...
View ArticleComment by periblepsis on Drill batteries
Barry, very well thought out points to ask about on your overall question about "replacing with better." So +1 for that reason.
View ArticleComment by periblepsis on how to choose the optimum discharge resistor?
I know you are asking about how to size the resistor. And you provide a very low valued suggestion. Seems to me that \$1\:\tau\$ gets you more than 63% voltage reduction and dissipation of 85% of the...
View ArticleComment by periblepsis on How do I go about finding the transfer function of...
@Antonio51 They are one gigafarad and one femptofarad. Very commonly used together in circuits. ;)
View ArticleComment by periblepsis on does data and instruction memory we see in the data...
No. The memories are just memories, generally. The implementation details aren't stated. However, there's no reason cache cannot be used. In fact, I used cache for both I and D memory in the R2000 from...
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Answer by periblepsis for Proving the output voltage expression
incorrect diagram & all results incorrectFirst, let me correct your picture.The diagram below on the left is what you are showing and it won't fit your assumption that \$V_p=V_m\$. The reason is...
View ArticleComment by periblepsis on Order of an RC circuit and independent initial...
@Curiousone Yes, you can. In the time domain. So at \$t=0\$ you can set them. But the frequency domain doesn't have a \$t=0\$! So. Pause a moment and reflect. Given any specific \$\omega\$, the ratio I...
View ArticleComment by periblepsis on In a simple series circuit, one with a diode, if I...
@Jack Yes. Of course. So if you place a resistor in series with the diode or if you take into account the internal bulk resistance of the diode, which the above equation does not do, then the result...
View ArticleComment by periblepsis on Lowest-power approach for latching circuit for...
@MathKeepsMeBusy Cool. More is better. ;)
View ArticleComment by periblepsis on Lowest-power approach for latching circuit for...
@JonathanW. Since I didn't know if you cared at all about it, I set R2 to 220k. At that level, it's like 60 uA. But you can multiply it by 10 and drop the current to 6 uA and it won't care. I am...
View ArticleComment by periblepsis on 7-segment display driver question
A 7-seg decoder has 4 binary inputs to it, doesn't it? The assignment doesn't seem to be clear on this, though the 3-8 decoder is suggestive, so perhaps it was in a lecture or added material you don't...
View ArticleComment by periblepsis on Used Transistor as Switch LED
Even assuming the LEDs are 6 V (I'm still thinking about how that may be), they stack up to 18 V. You are applying 46 V. That doesn't sound right to me. Usually, a current limiting resistor would be...
View ArticleComment by periblepsis on How to design a 2nd order low pass filter
@MisterElec94 High current and filtering out 50 Hz means dissipation or else energy storage and release. Either of these choices involves space. And potentially a fair bit of it. We'd need to see...
View ArticleComment by periblepsis on What is the difference clk and tic in arm tarmac...
Check the documentation. ARM has extensive documentation. (So much docs, in fact, that just thinking about reading through it makes me want to get a Cape Dory 45' sailing boat and go find a desert...
View ArticleComment by periblepsis on Why can't I get a value from this simulation?
THINKER? WRITE MORE!
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