| Wizzup | KotCzarny: https://maemo-leste.github.io/maemo-leste-eight-update-january-february-2019.html | 01:40 |
|---|---|---|
| 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 | 05:36 |
| 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 | 05:36 |
| brolin_empey | connected and disconnected on the cable. | 05:36 |
| Vajb | I have one cable which has three wires coming from usb a | 05:39 |
| Vajb | they have micro usb, lightning? (that apple thing which doesn't care which way it is entered) and samsung tablet plug | 05:41 |
| Vajb | it came with powerbank | 05:41 |
| brolin_empey | I know I can buy microUSB↔USB Type C adapters. I already have some but they are small and easy to lose because they are not permanently attached to a cable. | 05:42 |
| Vajb | maybe look from ebay for such cable | 05:43 |
| brolin_empey | Vajb: Yes, eBay is the ultimate dollar store. | 05:44 |
| Vajb | it has never failed to amaze me with its stock... | 05:47 |
| 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? | 06:55 |
| DocScrutinizer05 | surefire device killer cable | 06:55 |
| 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. | 07:01 |
| DocScrutinizer05 | brolin_empey: it's feasible but stringly deprecated since it's dangerous | 07:09 |
| DocScrutinizer05 | strongly | 07:09 |
| DocScrutinizer05 | you could connect a usb2 peripheral to the micro-plug while on C plug another device negotiated VBZS=9, 12, even 24V | 07:10 |
| DocScrutinizer05 | VBUS* | 07:11 |
| DocScrutinizer05 | all clear? | 07:11 |
| brolin_empey | DocScrutinizer05: OK, thank you for your knowledgeable answer. | 07:11 |
| DocScrutinizer05 | yw :-) | 07:11 |
| Vajb | oh, they have different voltage | 07:12 |
| DocScrutinizer05 | usb3 (C) _can: negotiate higher supply voltages, yes | 07:13 |
| DocScrutinizer05 | one of the "big assets" of USB3 | 07:14 |
| DocScrutinizer05 | fast charging | 07:14 |
| DocScrutinizer05 | even of tablets / laptops | 07:14 |
| DocScrutinizer05 | 24V iirc 2A = ~50W | 07:15 |
| DocScrutinizer05 | vs 5V@1.5A = 7.5W | 07:15 |
| DocScrutinizer05 | brolin_empey: https://en.wikipedia.org/wiki/USB_hardware#PD | 07:20 |
| DocScrutinizer05 | 20V@5A = 100W | 07:20 |
| DocScrutinizer05 | Vajb: brolin_empey: ^^^ needs special chargers which funny enough come with USB-A-F receptacle(s) | 07:25 |
| DocScrutinizer05 | datasheet for USB-C *charger chip*(!!!): 117 pages | 07:34 |
| DocScrutinizer05 | http://www.ti.com/lit/ds/symlink/tps65982.pdf | 07:52 |
| sixwheeledbeast | Yer, you have to increase the voltage to transfer the same amount of energy via such small a conductor. | 11:25 |
| sixwheeledbeast | P=I*V 24Vdc @ 2A = 48W | 11:27 |
| Maxdamantus | when do we touch, when do we kiss? | 11:30 |
| sixwheeledbeast | It's SELV not HV... | 16:42 |
| AlexNoise | evening | 23:22 |
Generated by irclog2html.py 2.17.0 by Marius Gedminas - find it at https://mg.pov.lt/irclog2html/!