161–170 of 226 posts
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China makes a 50 watt PD version with 2 ports already. https://a.aliexpress.com/_EuPD4j8 It can deliver 50 watts entirely to 1 port, unlike most others where they mean 25 watts per port. $5.50 with free shipping.
Does it follow the protocol properly? I’ve had some chargers that don’t default to the lowest output for dumb usb-c devices
Earlier quoted context omitted.
China makes a 50 watt PD version with 2 ports already. https://a.aliexpress.com/_EuPD4j8 It can deliver 50 watts entirely to 1 port, unlike most others where they mean 25 watts per port. $5.50 with free shipping.
I’m seeing $17+.
Earlier quoted context omitted.
China makes a 50 watt PD version with 2 ports already. https://a.aliexpress.com/_EuPD4j8 It can deliver 50 watts entirely to 1 port, unlike most others where they mean 25 watts per port. $5.50 with free shipping.
Please do not save money by using unlisted electrical equipment. Spend the extra $20 for a product that is tested and listed by UL/CE/ETL, it’s not worth burning a building down over $20. You couldn’t pay me enough money to plug this into a building’s electrical distribution system, it’s drawing ~3A at 120V (60W at 5V plus inefficiency) and in a very small form factor, I sure hope the engineering and QA of that $5 ch…
Fire is more of a concern, but this is indeed internally fused and the IC has both overcurrent and overheat protection - both of which are effectively 'free', so there are no cost savings to not include them.
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I use a tiny 15 watt charger for my laptop. It can just about charge the laptop whilst web browsing, but if anything CPU heavy happens then the battery discharges a bit. But over a whole workday I find the charger is enough, and I prefer a smaller lighter charger over the ability to run a game 24x7.
I have one of the first Thinkpads to have a USB-c socket, and the PC can be recharged slowly that way using a low-wattage adapter, but then it will not draw any power at all from the charger when you turn the laptop on, you get a message informing you of this.
Regarding ChargerLAB's products: I have an HP Zbook G1a laptop that uses 140W USB PD charging. However, except for the HP charger, I have not found a charger or cable pair that works. After a while they start cycling charging on and off. Under heavy load that happens almost immediately. Under light loads it might take hours. Is there a ChargerLAB product that can explain what exactly is going on between the computer…
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It could of course also be included only for power efficiency without being strictly necessary for optimal charging performance, but cooling performance can vary between cases and with environmental conditions, so I suspect it might be at least partially a functional requirement.
More fearmongering. Provide proof, or please stop confusing people. This thread was asking for recommendations to understand how to charge their phone. The answer is extremely simple. This is not the thread to dig into irrelevant details. Read the room. If you want to get technical, the difference in conversion losses between AVS at 13.3V@3A and a non-AVS 15V PDO @ 2.667A is going to be rounding error. Both need to b…
Mainly, I'm trying to understand why AVS is supported by both the phone and the adapter if supposedly it makes effectively no difference.
It could be as simple as being a requirement for PD 3.2 wall adapters, of course, but that raises the question for why it's required as well, if it's supposedly that irrelevant.
Earlier quoted context omitted.
More fearmongering. Provide proof, or please stop confusing people. This thread was asking for recommendations to understand how to charge their phone. The answer is extremely simple. This is not the thread to dig into irrelevant details. Read the room. If you want to get technical, the difference in conversion losses between AVS at 13.3V@3A and a non-AVS 15V PDO @ 2.667A is going to be rounding error. Both need to b…
I don't have access to, nor a need for, the 40W charger, yet I'll continue speculating about it (which is why I prefixed my comments with "I could see", "it could", and "I suspect"), thank you very much. Mainly, I'm trying to understand why AVS is supported by both the phone and the adapter if supposedly it makes effectively no difference. It could be as simple as being a requirement for PD 3.2 wall adapters, of cour…
Since I have shown through basic math that it isn’t related to the ability to charge the phone any faster, that possibility is obviously eliminated.
AVS is likely supported because there’s no reason not to support it. It is part of the newer USB-C PD specs, which Apple wants to support, and it continues to iteratively refine the energy efficiency of the charging process, which matters a small amount at a scale of billions of devices, but doesn’t matter at all for a single individual’s purchasing decision.
This teardown is great! At my work, we have an X-ray machine for PCB reverse engineering. On Fridays we throw in random stuff from around the office, and sometimes make videos about what we find inside. A few weeks ago we released an X-ray teardown of several other, older chargers. Very interesting to compare with these fancy new ones! https://youtu.be/4h4qabPsPfI
Curious, does this machine get past the top copper layer?
I wish they'd discount their 35W dual port chargers or that I could find a similar 3rd party charger. My main criteria are (1) dual USB-C ports to charge multiple devices in one location, (2) compact enough to not block the other receptacle, and (3) ports face down/to the side so can fit between the wall and furniture. Unfortunately most chargers fail at least one of these.
Amazing tear down and such compact design, but it's such a shame that these devices are glued together. Every time you see a glued device, just think "future e-waste".
Exactly! Shameless plug: we do a repairable design for e-bike battery which uses no glue ( https://gouach.com )
To be clear, I have designed high-density electronics myself which were repairable - it's tough but doable.