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tia

@ tia @lemmy.world

Posts
8
Comments
14
Joined
3 yr. ago

  • Spending the day testing my USB-C cables

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  • What's the best way to add a battery like device to a dynamo light

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  • Your solution may very well also work, good thinking. A few things to consider though:

    • Putting capacitors in series requires balancing them
    • A silicon full bridge rectifier drops ~1.4V frm the input
    • Incandecent bulbs require a lot of current to get going, this may result in a delay for them to turn on

  • Has anyone ever seen a "10A" USB-C cable and can tell what their purpose is?

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  • Haha pretty much

  • Has anyone ever seen a "10A" USB-C cable and can tell what their purpose is?

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  • Interesting approach, never thought about using the cable for something completely unrelated.

  • Has anyone ever seen a "10A" USB-C cable and can tell what their purpose is?

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  • Has anyone ever seen such a "10A" cable and can tell what their purpose is?

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  • Pretty much what I expected, but I don't think they care to much about that

  • Has anyone ever seen such a "10A" cable and can tell what their purpose is?

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  • Technology @lemmy.world
    tia @lemmy.world

    Has anyone ever seen a "10A" USB-C cable and can tell what their purpose is?

  • USB-C hardware @sh.itjust.works
    tia @lemmy.world

    Has anyone ever seen such a "10A" cable and can tell what their purpose is?

  • What's the best way to add a battery like device to a dynamo light

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  • I've actually done that with a simple single diode rectifier and a supercap with zener voltage limitation:

    If your supercap has a too low series resistance for the LED to light immediately you need an additional resistor in series with it. It is simple and small enough to directly fit inside the original lamp casing and has been working without a problem for over 3 years.

  • Some basic info about USB

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  • The USB-C standard and particularly the USB PD (power delivery) is so complex it almost feels comical.

    The PD standard document (freely available on usb.org) is over 800 pages long and features a lengthy part about the role of the cable alone which is mostly hidden from the user. Here's a short video about this issue: https://www.youtube.com/watch?v=6bZ0y9G-4Pc

  • Apple @lemmy.world
    tia @lemmy.world

    Test of three different original apple USB-C cables

  • There is a lot of variance in regular USB-C cables

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  • There is a lot of variance in regular USB-C cables

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  • Yeah, it's not really getting easier...

  • Technology @lemmy.world
    tia @lemmy.world

    There is a lot of variance in regular USB-C cables

  • There is a lot of variance in regular USB-C cables

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  • That's a great summary, thanks for sharing!

  • USB-C hardware @sh.itjust.works
    tia @lemmy.world

    There is a lot of variance in regular USB-C cables

  • USB-C cables can talk

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  • It indeed is, but there seem to be no testers available for resistance measurements.

  • Technology @lemmy.world
    tia @lemmy.world

    USB-C cables can talk

  • USB-C hardware @sh.itjust.works
    tia @lemmy.world

    Any real cable testers besides the one featured in this video?