| 00:40.52 | Wizzup | KotCzarny: https://maemo-leste.github.io/maemo-leste-eight-update-january-february-2019.html |
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| 04:36.52 | brolin_empey | Is it technically possible to make a USB combination cable with a full-size Type A plug on one end and both a Type C plug and a microUSB plug on the other end? If yes then is it feasible to productise such a cable? Apparently StarTech does not offer such a cable even though I have bought and use their full-size USB Type A plug to microUSB plug/miniUSB plug combination cable. StarTech does make a combination cable with a full-size USB Type A plug on one |
| 04:36.52 | brolin_empey | end and a microUSB plug on the other end with adapters attached to the end of the cable to convert the microUSB plug to an Apple Lightning plug or a USB Type C plug but this cable costs around 25 CAD each so I have only two and you have to manually connect and disconnect things on the end of the cable; the microUSB/miniUSB combination cable has both the microUSB and miniUSB plugs on a rigid T-shaped part on the end of the cable so nothing has to be manually |
| 04:36.52 | brolin_empey | <PROTECTED> |
| 04:39.54 | Vajb | I have one cable which has three wires coming from usb a |
| 04:41.00 | Vajb | they have micro usb, lightning? (that apple thing which doesn't care which way it is entered) and samsung tablet plug |
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| 04:41.24 | Vajb | it came with powerbank |
| 04:42.55 | brolin_empey | I know I can buy microUSBâUSB Type C adapters. I already have some but they are small and easy to lose because they are not permanently attached to a cable. |
| 04:43.35 | Vajb | maybe look from ebay for such cable |
| 04:44.39 | brolin_empey | Vajb: Yes, eBay is the ultimate dollar store. |
| 04:47.21 | Vajb | it has never failed to amaze me with its stock... |
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| 05:55.31 | DocScrutinizer05 | brolin_empey: >>both a Type C plug and a microUSB plug on the other end<< would you like the USB-C negotiates 24V VBUS getting fed to the micro-USB plug? |
| 05:55.57 | DocScrutinizer05 | surefire device killer cable |
| 06:01.24 | brolin_empey | DocScrutinizer05: I do not know a lot about USB Type C because I have little experience with it so far. I asked about the possibility and feasibility of creating such a cable because I thought that someone like you in this channel would know more than me about the involved hardware/technology. |
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| 06:09.13 | DocScrutinizer05 | brolin_empey: it's feasible but stringly deprecated since it's dangerous |
| 06:09.24 | DocScrutinizer05 | strongly |
| 06:10.57 | DocScrutinizer05 | you could connect a usb2 peripheral to the micro-plug while on C plug another device negotiated VBZS=9, 12, even 24V |
| 06:11.13 | DocScrutinizer05 | VBUS* |
| 06:11.34 | DocScrutinizer05 | all clear? |
| 06:11.46 | brolin_empey | DocScrutinizer05: OK, thank you for your knowledgeable answer. |
| 06:11.55 | DocScrutinizer05 | yw :-) |
| 06:12.21 | Vajb | oh, they have different voltage |
| 06:13.10 | DocScrutinizer05 | usb3 (C) _can: negotiate higher supply voltages, yes |
| 06:14.02 | DocScrutinizer05 | one of the "big assets" of USB3 |
| 06:14.13 | DocScrutinizer05 | fast charging |
| 06:14.31 | DocScrutinizer05 | even of tablets / laptops |
| 06:15.05 | DocScrutinizer05 | 24V iirc 2A = ~50W |
| 06:15.36 | DocScrutinizer05 | vs 5V@1.5A = 7.5W |
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| 06:20.17 | DocScrutinizer05 | brolin_empey: https://en.wikipedia.org/wiki/USB_hardware#PD |
| 06:20.52 | DocScrutinizer05 | 20V@5A = 100W |
| 06:25.57 | DocScrutinizer05 | Vajb: brolin_empey: ^^^ needs special chargers which funny enough come with USB-A-F receptacle(s) |
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| 06:34.31 | DocScrutinizer05 | datasheet for USB-C *charger chip*(!!!): 117 pages |
| 06:52.34 | DocScrutinizer05 | http://www.ti.com/lit/ds/symlink/tps65982.pdf |
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| 10:25.58 | sixwheeledbeast | Yer, you have to increase the voltage to transfer the same amount of energy via such small a conductor. |
| 10:27.16 | sixwheeledbeast | P=I*V 24Vdc @ 2A = 48W |
| 10:30.31 | Maxdamantus | when do we touch, when do we kiss? |
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| 15:42.36 | sixwheeledbeast | It's SELV not HV... |
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| 22:22.23 | AlexNoise | evening |
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