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Questions tagged [power-delivery]

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18 questions with no upvoted or accepted answers
2 votes
0 answers
212 views

USB Type-C DRP Integrated Switch/Interface Chip

I would like to experiment with a power bank design with a single usb type-c port. The port should have dual role, source current for charging other devices as well as sink current for charging itself....
Florin C.'s user avatar
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 ...
L. Ricardo's user avatar
1 vote
0 answers
61 views

Power plane vs polygon pours

This question is being asked from perspective of Altium but applies to other PCB CAD programs as well. So we can have two type of dedicated copper areas for power on a PCB plane. One is a polygon pour....
quantum231's user avatar
1 vote
0 answers
46 views

Why does Backside Power Distribution work for high speed CPUs?

Several upcoming or future CMOS process nodes are said to offer some kind of backside power delivery for Silicon CMOS transistors, so the precious area in the lower metal layers is freed up for signal ...
tobalt's user avatar
  • 22.5k
1 vote
1 answer
165 views

Setting SNK POD values for MAX77958

In the datasheet for the max77958 it states: ...
topher217's user avatar
  • 223
1 vote
0 answers
373 views

For USB-C, is it compliant to use the SBU pins for low voltage serial data transfer during 20 V Power Delivery?

I'd like to use a PD controller to allow for 20 V, 60 W+ to enter the sink system, but I'd also like to use the sideband pins (or other pins) to send some 3.3 V TTL serial data to the host side in the ...
joe_electric's user avatar
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 ...
Smyther's user avatar
  • 111
1 vote
0 answers
245 views

USB C PD source not powering simple USB 2.0 sink

I made a simple PCB that I wanted to be powered through a USB C connector with low current requirements (~50mA). I spent some time reading through the USB C Spec as well as reading other relevant ...
Colin's user avatar
  • 345
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.
Pogchamp Letsgodude's user avatar
1 vote
1 answer
100 views

USB PD Power Delivery Skip 9V Requirement

Is there any way possible to implement a USB C PD port that only sources 5V and 15V? As I read the spec (USB Power Delivery Specification Rev. 3.0, Version 1.2, June 21, 2018) it seems that I cannot ...
EasyOhm's user avatar
  • 4,669
0 votes
0 answers
84 views

USB connection and reconnection issue

I have upgraded a design with a USB2412 to a design with a USB2514Bi chip to have more USB ports available. During testing we discovered the device works like expected when we connect it to a USB A ...
user avatar
0 votes
0 answers
52 views

DC powered USB wall faceplate

Looking to make a USB Power Delivery faceplate to install within a wall. Looking to feed the faceplate from a 48V DC Bus that I have available. Looking to get ideally x2 USB C connectors and x2 USB A ...
Brandon Kellett's user avatar
0 votes
0 answers
660 views

Why does my USB-C PD trigger circuit not work in tandem with a DC-DC voltage step up module?

Good day internet humans, I am pretty new to the world of diy electonics, and am in the process of putting together a DIY portable computer monitor built from an lcd panel from an old laptop and a ...
Gert Breynolds's user avatar
0 votes
0 answers
52 views

USB3.0 PD port ORing

I was designing a product in which two USB Power Delivery ports are populated in the design so as to: Provide power from wall charger supporting PD Provide high speed communication with laptop Now ...
akshayv's user avatar
0 votes
0 answers
72 views

USB 2.0 0.9A and Data (hub) Simultaneously

Trying to combine USB hub and higher-than-default USB charging currents. My experience with implementing USB is close to zero, although I usually have no problems with datasheets and other designs I ...
Ilya's user avatar
  • 3,613

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