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Questions tagged [usb-c]

USB (Universal Serial Bus) Type C, a 24 pin connector system with a rotationally symmetrical connector. Consider using the "USB" tag in addition to this one.

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 ...
Juanma's user avatar
  • 400
12 votes
6 answers
19k views

How to get 20 V from a USB-C charger?

I want to power my DIY stuff with a MacBook Pro USB C charger. The label on a charger says that it can provide three different power profiles: 20.2V - 4.3A 9V - 3A 5.2V - 2.4A There is a ton of ...
George's user avatar
  • 245
17 votes
1 answer
109k views

Wiring diagram for USB-C to USB-A cable?

I make USB cables (USB-A to Mini or Micro primarily), but don't have any experience with USB-C. I would like to create a cable that has a USB-A (2.0) connector on one end, and a USB-C connector on the ...
rockwell's user avatar
  • 273
1 vote
3 answers
4k views

Does a USB PD source supply any voltage to a non USB PD compliant USB C device? If yes, how much?

I have a 40W USB PD compliant charger from my ultrabook. I recently bought a pair of headphones (Sony WH-1000XM4) which can be charged using a USB C Plug. Sadly I can not find in the specifications of ...
user avatar
16 votes
4 answers
19k views

Connecting two "USB C" hosts, what happens?

Up until USB C all the USB connectors were carefully chosen so that two hosts could not be plugged into each other. With USB C both the host and device have the same connector. With this setup it is ...
vini_i's user avatar
  • 7,137
14 votes
1 answer
19k views

Using USB-C as a power source

I'd like to complete an electronics project by allowing it to be powered over USB-C. The specification is complex, I'd love some help understanding it! I'll need to draw ~ 250mA at 5V for my project (...
JP.'s user avatar
  • 624
6 votes
1 answer
8k views

USB-C UFP CC configuration: What Rd resistor value I need to use to be able to draw up to 3A?

Basically I want to add USB-C ports to my projects so I can use them to draw power. From what I understand I need to put two 5.1 kOhm resistors between CC1/CC2 and ground. Would this allow the ...
TnF's user avatar
  • 151
0 votes
3 answers
2k views

USB Type C 3.1 PD to get DC20V output [duplicate]

I have a USB Type C notebook charger. I know it can supply 20V with 2.25A for my notebook. If I have a type-c breakout board, like this: https://www.ebay.com/itm/USB-3-1-Type-C-Female-to-Female-pass-...
Daniel's user avatar
  • 969
8 votes
2 answers
13k views

Are USB type C pull resistor neccesary on CC and SBU pins?

hello im trying to make a usb receptacle for my microcontroller, im planning to use USB Type C, Although i only need USB 2.0 functionality i might as well design it to specification so that the mCu ...
Jake quin's user avatar
  • 1,944
6 votes
3 answers
7k views

Properly route through hole USB-C

I'm having major problems making a good layout with a through hole USB-C connector. Have anyone done a good layout for one? The best I have managed now looks pretty terrible and one of the ...
Applet's user avatar
  • 75
6 votes
1 answer
3k views

USB-C Power Delivery with a buck converter

Following on from my previous question: The project I'm designing requires a peak current of 5V @ 6A. The average current draw will be more like 2A. The reason I'm looking into USB-C is that I want ...
CircularRecursion's user avatar
3 votes
3 answers
6k views

JRC-B008 for USB-C microcontroller power supply

I would like to use these exact female USB-C ports (labeled JRC-B008): to power a microcontroller at 5 V. Soldering the V -> ...
Sriram's user avatar
  • 33
3 votes
1 answer
5k views

Replacing USB-A with USB-C fails [closed]

What I did, step by step: Cut off the USB-A cable from a device. (smart card reader) Cut a USB-C to USB-A cable in half. (cable came with a phone) Soldered the USB-C part (see step 2) to the device (...
feklee's user avatar
  • 1,301
2 votes
1 answer
127 views

USB-C socket for USB-A compatible mode

I am developing a device which should be charging and communicating via USB. Therefore, I took USB-C socket and connected CC1 and CC2 to GND via 5.1 k resistors. The device gets detected correctly as ...
abeat's user avatar
  • 41
1 vote
3 answers
330 views

Type-C as a source and sink

I am designing a circuit that consists of Type-C male and female connectors. The device will act as a bridge between the mobile and the charger. I connected the CC1 and CC2 to 5.1k resistors on both ...
Mclovin's user avatar
  • 11

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