Timeline for Two power sources and two outputs with one switch
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
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| May 7, 2022 at 0:55 | comment | added | vu2nan | I fully agree with you. | |
| May 6, 2022 at 17:22 | comment | added | Circuit fantasist | Exactly! The right word is lateral thinking. I accumulated a lot of such simple but clever ideas not only in the laboratory but also in cars when we invented and mounted various devices in the 90's. For example, my favorite trick was to control the relay coil by the ground through a car lamp; when the lamp was on, the relay turned off. Another trick was to use the hysteresis of reed switches to make them act as latches ("magic switches"). The problem of creatively thinking people is the envy of conventionally thinking people who are trying to kill the new idea. There are many examples here. | |
| May 6, 2022 at 15:13 | comment | added | vu2nan | Thank you very much for your appreciation and also for opening my eyes to the depth to which one can go in analysing a circuit. I do hope the LED survives the reverse bias! Hat's off to you for recognizing, in this circuit, a similarity to the method you had devised years ago to easily observe signals on microcomputer buses and to kindle the interest of your students. I do appreciate your efforts to use analogies to motivate your students to think laterally and visualize abstract concepts. I am sure your efforts to promote your students learning and growth will never go in vain. | |
| May 6, 2022 at 10:51 | comment | added | Circuit fantasist | An elegant solution - to drive the LED both from the side of the anode and cathode (the ground acts as a "chip select"). The left LED will be reverse biased through the brake lamp. Will it stand it? Maybe... if the total resistance is high enough… I have shown this trick in my question. | |
| May 6, 2022 at 7:36 | history | edited | vu2nan | CC BY-SA 4.0 |
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| May 6, 2022 at 7:29 | history | answered | vu2nan | CC BY-SA 4.0 |