All Questions
Tagged with usb-c power-supply
45
questions
1
vote
0
answers
25
views
Low Quiescent Current over USB Type-C [closed]
I'm working on a battery powered project which I'm currently planning on powering over USB Type-C for flexibility. The 5V/3A spec would satisfy my needs for the high end of power draw, however, I want ...
- 31
0
votes
0
answers
32
views
USB-C module configuration pins in parallel connection
I have received a lot of help from several members of this site. After trying to wire two charging ports on the same device and investigating the diode OR-ing configurations and the power mux ...
- 145
1
vote
1
answer
113
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
2
votes
3
answers
1k
views
Why are CC1 and CC2 only connected to USB-C?
This is a schematic where USB-C is used to power a circuit device.
Notice that there are only VBUS and CC1 and ...
- 1,324
0
votes
1
answer
197
views
Is 5V@3A really possible using a Type-A plug charger?
I have a 18 W capable phone wall charger that I'd like to use to power my [email protected] hobby circuit, it has a Type-A plug in it and the label states the following ratings:
5V@3A
9V@2A
[email protected]
So after ...
- 137
0
votes
1
answer
84
views
USB C - USB A cable connection for power source
I'm trying to power a small microcontroller board using the USB-C of a smartphone, to do so I took a USB C - USB A that has 4 lines (Vcc, GND and 2 data), but I'm not able to get 5V out of it.
Simply ...
- 135
0
votes
0
answers
121
views
USB C Cable - Which conductors do what to power a Raspberry Pi4b
Good day to you all,
I am looking to power my Raspberry Pi 4b from an external 5v supply. I know I could just put the 5v supply to the raspberry pi 5v/GND pins and power it this way but this does ...
1
vote
1
answer
566
views
USB-C C2C (XN005-56) as 5V power supply
I am trying to to fix this 5V USB-C board to also work with USB-C to USB-C cables.
Right now it works only with a USB-A to USB-C cable. It should output 5 V on the big pads to the right. In the ...
- 21
0
votes
0
answers
26
views
5V power supply that accepts wires? (terminal block?) [duplicate]
I recently removed my Vivint SkyControl panel from my wall, and there's already a wire running from the outlet in my utility room to the dining room. I was hoping to use that wire as a charger for a ...
- 1
1
vote
1
answer
100
views
Need help driving the enable pin on a TPS2595 with a voltage divider; not exactly sure which method is better to use
I'm a hobbyist at best, and am trying to overcome the learning curve as far as pull-up and pull-down resistors, N channel transistors and P channel transistors, etc, etc.
I've got a USB Type-C charge ...
- 313
0
votes
1
answer
115
views
Sink 15 W from USB power supply
my question is simple but USB standard and how it works, let me going crazy.
I need to sink up to 3 A (5 V) from a USB type C connected to a 15 W (5V @3A) wall power supply.
My board should have only ...
- 91
0
votes
0
answers
101
views
Convert USBC->USBA2 into USBC->Dupont connector for bread board
As I was tired of always lacking the right cable, I started making my own ones with the little soldering skills I have.
So now I want to convert a USBC->USBA (2.0, not blue) male-male into a USBC-&...
- 101
7
votes
2
answers
1k
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
2
answers
9k
views
A proper way to stop power banks from turning off, and how to power low-current devices through USB
I have a device with a microcontroller that is powered via a USB-C connector. It is a more or less a standalone device (a synth with a USB-C power input and a jack output) and probably user would want ...
- 1,109
1
vote
0
answers
162
views
Delivering power by USB C - Magnetic Framework Laptop Extension
I'm trying to build my own magnetic extension card for the Framework Laptop, and am trying to figure out the least number of pins I need. I have this YouTube video that says the USB C PD spec needs ...
- 111