All Questions
Tagged with power-delivery power-supply
7
questions
1
vote
1
answer
112
views
Help identifying chip in Huawei motherboard
Can you help me identify this chip? It looks like a SOT23-5 chip, it seems to be part of the USB-C Power Delivery. The laptop doesn’t power up because this chip seems to be part of the negotiation ...
- 11
7
votes
2
answers
988
views
Implementing USB-C PD PHY directly into micro-controller
I want to explore more USB-C PD, in particular Programmable Power Supply (PPS), to supply my projects with power. There are some good projects1 using some standard communication (e.g. SPI or I2C) to ...
- 193
1
vote
0
answers
696
views
USB-C power delivery, how to power 20V pd device from "dirty" +20V source?
I want to charge my laptop from a solar pv panel. It charges via USB-C and so I bought a cheapo usb solar panel off ebay and a "power bank".
Turns out, the "power bank" is only for ...
- 111
0
votes
1
answer
96
views
USB receptables for power delivery? [closed]
I'm not totally sure this is the right place to ask, but does anyone know of any USB C receptacles for low voltage and current power delivery? I can't find a good option with a good schematic.
- 223
1
vote
1
answer
2k
views
USB-C and >5V Power Supply
I have a question about power supplies and Power Delivery on USB-C. I'm trying to understand the USB-C specification, Power Delivery, UFP and DFP, DRP... but this is a nightmare. There are not ...
- 400
1
vote
2
answers
915
views
Creating a USB charger from 2-wire DC [closed]
I'm trying to tackle a problem where I want to wall-mount a USB device on a brick wall that only has a single 2-wire (14AWG) cable available, and no room / capability to run a new cable or remove the ...
- 119
1
vote
0
answers
451
views
Draw 15V from USB C Power Delivery devices
I need to draw 15V from USB C PD capable devices such as power banks or chargers.
So I need a rather small tool or build for this I can draw about 15V 3A via usb c with.
Thanks for your help.
