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Activity for Michaël Bensimhoun‭

Type On... Excerpt Status Date
Comment Post #280676 I've never thought about switching current regulators, despite this is quite natural and making sense. Thank you for instructing us again.
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almost 4 years ago
Edit Post #279580 Post edited:
spurious text introduced mistakenly in the previous edit - errased
almost 4 years ago
Edit Post #279580 Post edited:
minor mistake
almost 4 years ago
Comment Post #280117 Maybe. But I have to go now. I'll try to answer to this question tomorrow in the evening.
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almost 4 years ago
Edit Post #279580 Post edited:
Note added
almost 4 years ago
Comment Post #279580 Thank you Pete. I'll think about how to include your note inside the article.
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almost 4 years ago
Edit Post #279580 Post edited:
almost 4 years ago
Edit Post #279580 Post edited:
almost 4 years ago
Edit Post #279580 Post edited:
Some added precisions.
almost 4 years ago
Comment Post #279962 In place of a resistor, what is bad with a 3.3V Zener at the output of the oamp? the output current of the oamp is self limited, and the zener will certainly not burn at this power. Or better, a 100 ohm resistor followed by a Zener, to be totally religious.
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almost 4 years ago
Comment Post #279886 @Olin. Your no 4 is fascinating. So, do you say that the cap should be connected to the ground pin of the part, and this later not connected to the the master ground, or do you say that the cap should be connected very close to the ground pin of the part, while this later may be connected to the mast...
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almost 4 years ago
Comment Post #279886 @Lundin. Wha..? a cap is slow? it cannot help with ESD events? don't we have always V = Q/C, where Q is very small for ESD events? oh of course, if the cap has a high ESR, it may be too slow.
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almost 4 years ago
Comment Post #279580 @Circuit fantasist. I have to mitigate my opinion about the link "What does this transistor circuit do". There are indeed interesting things there. I meant there are few interesting things that are not dealt in this article, if out of topic subjects are omitted.
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almost 4 years ago
Edit Post #279580 Post edited:
Small additions
almost 4 years ago
Edit Post #279580 Post edited:
more understandable
almost 4 years ago
Comment Post #279580 Your third comment. It is unclear, and I cannot answer to it. Note: again this circuit works, so, I don't see what can be the point here.
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almost 4 years ago
Comment Post #279580 2. Your second comment. Look at the first schematic in sec. C. 1. The transistor changes its collector emitter voltage VCE in order for the voltage between its base and Vout be equal to the Zener voltage. So, we have V_zener = 1 diode drop + R1 i, where i is the current through the transistor. That m...
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almost 4 years ago
Comment Post #279580 @Circuit fantasist. 1. Your first comment: you are absolutely wrong. There is no problem with charging and discharging quickly capacitors, this is their function. If you mean that this may induce a large "inrush" current in the circuit, this is hardly a problem here because the capacitor is unlikely ...
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almost 4 years ago
Edit Post #279580 Post edited:
some added precisions
almost 4 years ago
Edit Post #279580 Post edited:
small mistake
almost 4 years ago
Comment Post #279580 Regarding "the problem is that the voltage across this circuit will vary significantly with current load". No: you have to choose a sufficiently muscular transistor in order for the current to be independent of the load. This choice is a design question regarding the maximal load to handle. Notice I ...
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almost 4 years ago
Comment Post #279580 @Circuit fantasist. Thx for your comments. "Regarding what does this transistor circuit do", I see nothing particularly interesting there (and even some incorrect things). Regarding your "decoupling with a diode between the cap and the base", I don''t understand what you are trying to obtain with tha...
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almost 4 years ago
Edit Post #279554 Post edited:
almost 4 years ago
Edit Post #279554 Post edited:
almost 4 years ago
Edit Post #279554 Post edited:
almost 4 years ago
Edit Post #279554 Initial revision almost 4 years ago
Question Paper disappeared - and my rating as well
Strange things occurring in the "papers" category: my paper entitled "the capacitance multiplier revisited" has disappeared, and my vote rating has been erased. Any insight ?
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almost 4 years ago
Edit Post #279527 Post edited:
almost 4 years ago
Edit Post #279527 Post edited:
almost 4 years ago
Edit Post #279527 Initial revision almost 4 years ago
Article The capacitance multiplier revisited
Introduction A capacitance multiplier is an electronics technique that allows reducing the voltage ripple at some point in a circuit. It is often used in power supplies, after the rectification of the current and the storage capacitors. Its efficiency vs simplicity makes it a nice and attractive...
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almost 4 years ago