Timeline for Attempting to switch on and off a 4.5 V solenoid with a transistor using a push button to control input
Current License: CC BY-SA 4.0
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| Feb 4 at 10:05 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Oct 6, 2023 at 11:01 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
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| Jan 1, 2023 at 11:18 | history | edited | ocrdu | CC BY-SA 4.0 |
deleted 25 characters in body; edited tags; edited title
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| Jan 1, 2023 at 5:08 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
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| Jan 29, 2021 at 1:09 | history | edited | MarkU |
edited tags
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| Mar 3, 2020 at 20:54 | comment | added | Drhowell440 | You were right. I should have the other terminal of the button to the negative and the other terminal was going to the led instead of the transistor. It is functioning now. I have lost a lot of sleep over this. I know it is simple for you guys, but it is still very new to me. Thanks for all of the help! | |
| Mar 3, 2020 at 20:50 | comment | added | Drhowell440 | I did not realize there was a built in schematic editor. I will check it out. | |
| Mar 3, 2020 at 20:09 | comment | added | Peter Bennett | On your breadboard, you have a red wire from one end of the LED to one terminal of the switch, with no other connections to those points. That is not what your schematic shows. The other terminal of the button does not appear to be connected to the negative terminal of the battery. The schematic you drew does not match the circuit on the breadboard. | |
| Mar 3, 2020 at 19:58 | comment | added | Ariser | Why don't you use the built in schematic editor? How can we know which pin of your transistor serves which function? Btw it is a little miracle that your circuit produces blue light without magic blue smoke. | |
| Mar 3, 2020 at 19:34 | comment | added | Drhowell440 | I have added a very crudel drawn schematic. This is my first schematic ever, but hopefully it helps. | |
| Mar 3, 2020 at 19:33 | history | edited | Drhowell440 | CC BY-SA 4.0 |
Addded crudely drawn schematic.
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| Mar 3, 2020 at 19:18 | comment | added | Peter Bennett | PLEASE draw a schematic so you, and we, know how things are really connected in your circuit. As I said in a previous comment, it appears that you have the switch in series with the LED or solenoid, rather than controlling the transistor which in turn controls the LED or solenoid. | |
| Mar 3, 2020 at 19:09 | answer | added | Peter MP | timeline score: 1 | |
| Mar 3, 2020 at 19:01 | comment | added | Drhowell440 | I have also switched that out with a IRF520N Transistor, but it gives me the same results. It will work with an led, but not a motor or solenoid. | |
| Mar 3, 2020 at 19:00 | comment | added | Drhowell440 | 58050 NPN transistor I think is correct | |
| Mar 3, 2020 at 18:58 | comment | added | Drhowell440 | The photos of the circuits are all I have. I have not drawn a schematic. I am certainly a noob to all of this, but I tried it with multiple different resistor with the same outcomes. I just do not understand how the led could work, but not the solenoid once the led is in place. Even though the power supply will directly power either one of them. | |
| Mar 3, 2020 at 18:54 | comment | added | Peter Bennett | Looks like the switch is in series with the LED or solenoid, rather than controlling the transistor. Please show a schematic of your circuit, and include the transistor part number. | |
| Mar 3, 2020 at 18:53 | comment | added | Huisman | Note the statement "it works" does not mean "it is correct". So, the LED burns does not mean the circuit is as it should be. The circuit is missing (current limiting) resistors and the switched current seems to be running through the button (whic shouldn't as that is the reason to use a transistor+button instead of only a button). Please add the schematic you used or provide the transistor type and pinout | |
| Mar 3, 2020 at 18:28 | comment | added | user16324 | Post your schematic. | |
| Mar 3, 2020 at 18:25 | review | First posts | |||
| Mar 3, 2020 at 19:58 | |||||
| Mar 3, 2020 at 18:23 | history | asked | Drhowell440 | CC BY-SA 4.0 |