New answers tagged charging
2
votes
Why USB chargers with two ports capable of more than 15 W can often only deliver 15 W when charging two devices?
It's most likey the upstream regulator that is the limiter and they likely only have one. Many devices including PSE POE equiptment operate this way. It makes the devices cheaper because they only ...
- 88.8k
3
votes
Accepted
Why USB chargers with two ports capable of more than 15 W can often only deliver 15 W when charging two devices?
I can not answer authoritatively for your specific device and we can only guess when it comes to a proprietary gadget, but another device that I have with multiple ports is limited in a similar way, ...
- 14.6k
1
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Charger IC cannot charge with Type-C Data+Charging Cable on USB Port
The USB A plug has 4 pins. +5V, ground, D+ and D-.
A USB data (upgrade) lead will connect all 4 pins. When charging, the D+ and D- are used by the device to tell the power supply what it needs. ...
- 20k
1
vote
Identifying this component on wireless receiver
It's probably a SMF15CA bipolar TVS diode in a SOD-123F package. There are multiple Chinese manufacturers that use OM as marking for this diode, like Silkor, ...
- 7,858
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