Activity for Circuit fantasist
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Suggested Edit | Post #282363 |
Suggested edit: Minor edit (more) |
helpful | almost 3 years ago |
| Comment | Post #278555 |
@Elliot Alderson, Are you happy with my answer? If this circuit solution seems too complicated to you, I will offer you an even simpler recipe for "converting" SPST into SPDT switch - only through a "pulling" resistor. It was dominant before the complementary stage was invented... (more) |
— | over 3 years ago |
| Edit | Post #279016 |
Post edited: Restored correct text and pictures (removed during the ability update) |
— | over 3 years ago |
| Edit | Post #279967 |
Post edited: Replaced pictures |
— | over 3 years ago |
| Edit | Post #279967 | Initial revision | — | over 3 years ago |
| Answer | — |
A: Is it possible for one transistor to switch between two loads? When, two months ago, I accidentally found out about the new Codidact platform, I was happy and decided to take part in it. I wanted to mark this event with an interesting question that would arouse the interest of visitors to the new platform. Thus I remembered an interesting inventive idea from the... (more) |
— | over 3 years ago |
| Edit | Post #279860 |
Post edited: The problem is solved |
— | over 3 years ago |
| Comment | Post #279860 |
When I clicked the "insert picture" button, nothing happened and I did not see the window "insert an image". But I just tried it and it already works... (more) |
— | over 3 years ago |
| Edit | Post #279860 |
Post edited: Added another picture |
— | over 3 years ago |
| Edit | Post #279860 |
Post edited: Added a picture of the console |
— | over 3 years ago |
| Comment | Post #279860 |
OK, I found it by search. JavaScript is enabled. (more) |
— | over 3 years ago |
| Comment | Post #279860 |
I have seen Javascript void (0) in the lower left corner of the screen. BTW I use Chrome but I have the same problem when using IE and Opera as well. I can not find where to enable JavaScript (Settings -> Advanced -> Content settings? ...) (more) |
— | over 3 years ago |
| Edit | Post #279860 | Initial revision | — | over 3 years ago |
| Question | — |
I can not upload pictures I can not upload pictures when I start a new answer to a question (I have no problem when I edit an old answer). When I click the "insert picture" button, nothing happens and I do not see the window: The window about inserting a picture Here are the messages in the console: Console Final ... (more) |
— | over 3 years ago |
| Edit | Post #278546 |
Post edited: Clarifying |
— | over 3 years ago |
| Edit | Post #279735 |
Post edited: Explaining the compensating technique in terms of resistances |
— | over 3 years ago |
| Edit | Post #279735 |
Post edited: About virtual ground |
— | over 3 years ago |
| Edit | Post #279735 |
Post edited: Minor edit |
— | over 3 years ago |
| Edit | Post #279735 |
Post edited: Structuring |
— | over 3 years ago |
| Edit | Post #279735 |
Post edited: Minor edit |
— | over 3 years ago |
| Edit | Post #279735 |
Post edited: Minor edit |
— | over 3 years ago |
| Edit | Post #279735 |
Post edited: Minor edit |
— | over 3 years ago |
| Edit | Post #279735 |
Post edited: Added a link to a related movie |
— | over 3 years ago |
| Edit | Post #279735 |
Post edited: Added a link to a related picture |
— | over 3 years ago |
| Edit | Post #279735 |
Post edited: Minor edit |
— | over 3 years ago |
| Edit | Post #279735 |
Post edited: Minor edit |
— | over 3 years ago |
| Edit | Post #279735 |
Post edited: Minor edit |
— | over 3 years ago |
| Edit | Post #279735 |
Post edited: Minor edit |
— | over 3 years ago |
| Edit | Post #279735 |
Post edited: Added more considerations |
— | over 3 years ago |
| Comment | Post #278933 |
... So far, the transistor is able to resist the input voltage through its emitter voltage. Now the latter disappears and the input voltage is applied directly through the base-emitter junction to the emitter (load). In some cases, this is undesirable... and in others it can be useful. BTW we can obs... (more) |
— | over 3 years ago |
| Comment | Post #278933 |
@coquelicot, Thanks for the comprehensive explanation. I imagined something similar but now it is quite clear to me. As you probably noticed, in my circuit stories I try to show non-standard circuit ideas. My goal is to arouse interest in creative thinking leading to invention of circuits. In this st... (more) |
— | over 3 years ago |
| Comment | Post #278933 |
@coquelicot, can you explain to me what does "tinkerer solution" ("tinkerer") mean? I guess but I am not sure... (more) |
— | over 3 years ago |
| Edit | Post #279735 |
Post edited: Added clarification |
— | over 3 years ago |
| Edit | Post #279735 |
Post edited: Minor edit |
— | over 3 years ago |
| Edit | Post #279735 |
Post edited: Added explanatory text to a link |
— | over 3 years ago |
| Edit | Post #279735 |
Post edited: Added link |
— | over 3 years ago |
| Edit | Post #279735 |
Post edited: Minor edit |
— | over 3 years ago |
| Edit | Post #279735 |
Post edited: Minor edit |
— | over 3 years ago |
| Edit | Post #279735 |
Post edited: Minor edit |
— | over 3 years ago |
| Edit | Post #279735 |
Post edited: Structuring |
— | over 3 years ago |
| Edit | Post #279735 |
Post edited: Minor edit |
— | over 3 years ago |
| Edit | Post #279735 |
Post edited: Minor edit |
— | over 3 years ago |
| Edit | Post #279735 |
Post edited: Minor edit |
— | over 3 years ago |
| Edit | Post #279735 |
Post edited: Minor edit |
— | over 3 years ago |
| Edit | Post #279735 | Initial revision | — | over 3 years ago |
| Answer | — |
A: How to plot the I-V curve of a tunnel diode? Setup We can best understand the behavior of the tunnel diode in the region with negative resistance if we imagine it as a self-variable (dynamic) resistor R driven by a variable voltage source V - Fig. 1. If OP has a subtle sense of humor, I suggest we conduct this experiment in the form of a f... (more) |
— | over 3 years ago |
| Edit | Post #278836 |
Post edited: Minor edit |
— | over 3 years ago |
| Comment | Post #279596 |
@LvW, Exactly... I just quoted an excerpt from another similar question that was asked to me some time ago... (more) |
— | over 3 years ago |
| Comment | Post #279580 |
@Michaël Bensimhoun, Let's stop here. We exchanged interesting thoughts that give us food for thought. I am happy with that. Thanks for the comments. (more) |
— | over 3 years ago |
| Comment | Post #279580 |
The problem of such a "BJT constant-current diode" is that it needs another (base) input voltage in addition to the voltage drop across the emitter resistor. The emitter voltage is subtracted from the base voltage and the positive difference (in the case of an NPN transistor) is applied as a bias vol... (more) |
— | over 3 years ago |