USB-C PD PSU

[alexsh1]

Hello,

I have a USB-C PD 26850mAh power bank, which I used to charge my gadgets. I wanted to use the same power bank to charge my Microsoft laptop, which does not have USB-C PD port . USB-C PD can vary voltage / amperage from 5-20V upto 3A. And laptop must be supplied with 15V. How do I connect the two? Well, that’s the answer

This is a USB-C PD Buddy Sink - a little board with a chip which negotiates a precise voltage / amperage one sets-up. Absolutely brilliant!
Now I can use it to extract any voltage in the region 5-20V for any project.

In theory can by mysensorised but I do not see any point in controlling it remotely

[gohan]

I think I am a bit confused...

[alexsh1]

@gohan said in USB-C PD PSU:

I think I am a bit confused...

About what?

[gohan]

What your are trying to do and what this device does...

[alexsh1]

@gohan ok, do you have a phone / laptop charger USB-C PD (Power Deivery)? This is not a typical USB interface. With one PSU, one can charge a phone or a laptop. No need to have several chargers.
My issue is this. I have a laptop, which does not have USB-C interface. I also have a power bank powerful enough to provide 30W USB-C PD charging. I do use it for my mobile phone as well as iPad. Unfortunately, I could not charge my laptop (remember, no USB-C port?) until now. I have got the board (in the photo above). It takes power from USB-C PD and you can select any voltage from 5-20V on the output. I programmed 15V (this is my laptop voltage) and used this cable to charge the laptop.

https://www.amazon.co.uk/dp/B01DT9X1LI/ref=cm_sw_r_sms_c_api_i_rBP.AbP80WV49

The same board can be used with USB-C PD charger for any project requiring higher than 5V voltage. You can program any voltage in the region 5-20V.
Some time ago I needed 13V power supply and ended up using 24V one and lowering voltage to 13V.

[gohan]

Basically you are turning the powerbank into one of those with variable DC output

[alexsh1]

@gohan Basically yes. I just wanted to have one power bank for everything including my laptop. Obviously, there are plenty other ways this board can be used/setup. If I ever need a strange voltage source (say, 13V) for a project / breadboard and I do not have other sources, this is the way to go.

PS Many modern laptops with a minor exception have USB-C PD. Even Apple introduced USB-C with power delivery for laptops.
This is a great technology allowing just one PSU to be used for everything.

[alexsh1]

See this comparison USB-C PD and a normal USB power banks - https://www.anker.com/deals/usb-c?country=us

[mfalkvidd]

@alexsh1 do you have a buy link for the buddy sink? Sounds like it could be very handy.

[alexsh1]

@mfalkvidd

Yes, you can buy it here

https://www.tindie.com/products/clayghobbs/pd-buddy-sink/

Or order the PCB and do it yourself here

https://oshpark.com/shared_projects/B7h1WKOi

This does require very fine SMD soldering!