Timeline for How can I reduce the high voltage input for 7805?
Current License: CC BY-SA 4.0
12 events
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| Feb 18, 2021 at 7:22 | comment | added | Chris H | @KISSANGOU I suspected as much. That means a rare downvote from me for random google examples that don't actually answer the question. It's far from clear that the user is familiar with the capacitors needed | |
| Feb 18, 2021 at 7:08 | comment | added | KISSANGOU | @Chris H - I was merely providing options and ideas for the person who asked the questions, hence I randomly used google images for illustration no necessarily the nitty gritty of the question at hand. I am sure the user knows you need an appropriate size capacitor to deal with smoothing and ripple after the rectifier. | |
| Feb 18, 2021 at 7:05 | history | edited | KISSANGOU | CC BY-SA 4.0 |
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| Feb 17, 2021 at 15:26 | comment | added | Chris H | You're also specifying only 0.22uF in the first figure. Most circuits taking AC, rectifying it, and regulating with a linear regulator rely on a larger capacitor (possibly in addition to the small one you've shown), so perhaps you might explain how you reached this value. I know it's not your diagram , but it is your answer | |
| Feb 17, 2021 at 14:44 | comment | added | DKNguyen | This doesn't address the OP's request for ZERO to 300V input. Not that it is really your problem as much as it indicates the OP does not know what they want or need. | |
| Feb 17, 2021 at 14:07 | history | edited | Russell McMahon♦ | CC BY-SA 4.0 |
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| Feb 17, 2021 at 14:01 | comment | added | Russell McMahon♦ | @KISSANGOU I am a site moderator. (The small diamond after my name indicates this). The rules of the site were provided for you to read when you joined. It is good that you are using public domain images, but we need to be "squeaky clean" and a traceable chain to a source indicating licence status helps AND may allow people who are interested technically to back trace to related information. | I could not find matching images using Google image search. It is a simple matter when you source an image to add a "From here" link. | Please add source links for your images. | |
| Feb 16, 2021 at 19:38 | comment | added | SamGibson♦ | KISSANGOU - Hi, "They are google images on the public domain" As you can see on the rule that I linked, there is no exception for that. A link to the original source page for each image is still needed by the site rules here. The original source can be found on the Google image search page that you used. "are you the site moderator?" No, I'm not, I'm helping you to understand what the site rules are here (as any member could tell you) so that you can comply with them. If you would like me to get a moderator involved, then just let me know and I'll do that. Thanks. | |
| Feb 16, 2021 at 19:32 | comment | added | KISSANGOU | They are google images on the public domain, are you the site moderator? | |
| Feb 16, 2021 at 19:17 | comment | added | SamGibson♦ | KISSANGOU - Hi, Are those 3 images your own creation? As required by this site rule, when we include something in an answer (e.g. photo, image or text) which isn't our own original work, we need to properly reference (cite) it in the answer. For images that came from elsewhere, please edit your answer & add a link back to the original web page for each one. If you created any of them, then please add a note for any image where that is true. Thanks. :-) (As a new member, I also recommend you read the tour and help center to see the rules.) | |
| Feb 16, 2021 at 16:12 | review | First posts | |||
| Feb 16, 2021 at 16:23 | |||||
| Feb 16, 2021 at 16:05 | history | answered | KISSANGOU | CC BY-SA 4.0 |