Activity for Circuit fantasist
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Comment | Post #278548 |
@Olin Lathrop, I asked a question in the meta section about this problem - https://electrical.codidact.com/questions/278579 (more) |
— | over 3 years ago |
| Comment | Post #278548 |
@Olin Lathrop, OK, I see... I had two possibilities - to show my possible answer or to wait for others to show their solutions (as you)... and I chose the latter. Another time I chose the former... but result was the same - negative reactions. I thought it would be different here, so I was enthusias... (more) |
— | over 3 years ago |
| Comment | Post #278548 |
@Olin Lathrop, I am sorry if it is taken this way. I have already told how the idea for this conceptual question arose from something specific from the distant past. My idea was to get confirmation of my current hypothesis, so I asked it. I did not want to direct the answers in a certain direction ... (more) |
— | over 3 years ago |
| Comment | Post #278548 |
Thanks again for the efforts! I feel a little awkward about the time taken. Rather, I expected you to be a little affected by my naive question.
My idea was even simpler. An LED is supplied by a current and is lit. The SPST switch connects another LED with lower VF in parallel. It diverts the cur... (more) |
— | over 3 years ago |
| Comment | Post #278548 |
Thanks for the responce; it means a lot to me. My idea was to do the opposite - no equalizing resistors... and then the LEDs to act themselves as switches. Then the idea came to me to consider them together with the transistor as a "composite SPDT switch"... and I decided to ask this question... but ... (more) |
— | over 3 years ago |
| Comment | Post #278555 |
... I guess you will agree that coming up with a good question is no less difficult than answering it... Really, "an SPST switch can not act as an SPDT switch" but the latter can be assembled by two (NO and NC) SPST switches (transistors). And here is an idea (I have realized it just now) - one of th... (more) |
— | over 3 years ago |
| Comment | Post #278555 |
@Elliot Alderson, As usual, you are in the right place at the right time:) In general, you are right… but not quite. Really, in 1984, I got a patent for an LED voltage indicator where two transistors controlled three LEDs. Now, inspired by the new EE network, I began to realize the idea in a more ge... (more) |
— | over 3 years ago |
| Comment | Post #278548 |
An interesting example... I like this circuit. As though, it is a voltage divider of three resistors in series. The middle "resistor" is variable and it controls the common current that, like an "electrical transmission", connects the voltage drops across R1 and R2 by Ohm's law - V1/R1 = V2/R2, so V1... (more) |
— | over 3 years ago |
| Comment | Post #278354 |
@coquelicot, I read with interest what you wrote. Definitely it is very enthusiastic and brave... Keep going boldly in this direction! Now I want to ask you, "Do you want to know what the simple truth about bootstrapping is?" To do this, you only need to forget about the existence of the "ground" ... (more) |
— | over 3 years ago |
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