Here is why USB Type-C is AWESOME and how you can use Power Delivery for your electronics!

USB connectors changed quite a bit over time starting with the clunky USB type a and type II connector the overall size then shrank down with the mini USB connector and especially the micro USB connector which is the the most widely used USB connector type next the blue USB 3.0 connectors came along with super speed functionality but nowadays more and more modern electronic devices come with a so-called USB type-c connector which offers tons of improvements in comparison to the old USB standards so in this video we are going to learn about most of them and find out how we can use the USB type-c power delivery to easily power a wide variety of different voltage level electronics let's get started this video is sponsored by jlc PCB who started the SMT assembly service back in September 2019 and they currently offer eight and seven dollar discounts for it so why not use it to save time and money when it comes to populating and soldering SMT components to your PCBs to start off let's talk about USB 2.0 connectors which includes most of the available USB types which are the type A and B ones but also the mini and micro ones all of those come before mandatory pins which are the bus voltage sulfide foods data miners data plus and ground mini USB and micro USB also come with a fifth pin which is used for the USB on-the-go idea but that is not important right now what is important though is that the differential data signal which looking at the electrical properties is pretty similar to the one I showed you in my rs-485 video can only be used half duplex that means data can either get transmitted from the host to the device or the other way around but never simultaneously that is why the maximum data speed of USB 2.0 is only 480 megabits per second so when the USB 3.0 connector arrives it came with nine pins which are not only backwards compatible with the old USB 2.0 pins but also offer two more differential data channels one is for transmitting data while the other is for receiving data and thus we got a fool to Plex data transmission that means that with the USB 3.0 protocol we get a speed limit of five gigabit per second and with the USB 3.1 a limit of 10 gigabit per second however the USB 3.2 protocol with speeds of 20 gigabit per second and use before were 40 gigabit per second are not available for this connector type because there was another connector developed to rule them all the USB type-c connector it is not only smaller than the micro version of the USB 3.0 connector but you can also plug it into its port no matter the orientation which was a big problem of the old USB connectors that is possible because the 24 pins of the USB type-c port our let's call it horizontal reverse symmetrical this way no matter how you plug the connector in the pins will always be at the right spot once again the pins are backwards compatible to USB 2.0 and also come with two differential data pairs for USB 3.0 which means it can do all the things the old connectors could do but additionally we also got a configuration channel which lets the two connected devices talk in order to not only determine who's the host and who is the device but also to manage power and to select alternate modes before talking about power though let's talk about the alternate modes as a practical example I got myself this USB type-c hub which not only comes with a card reader and USB ports but also an HDMI outputs so after pushing the USB type-c plug into my smartphone and using an HDMI cable to hook up the hub to a monitor we can see that my smart phone now became sort of like a desktop computer and after adding a mouse and keyboards we can truly get some work done with it's all thanks to the alternate modes in that modes many of the USB type-c connector pins can be reassigned to fulfill other functions like for example an HDMI or DisplayPort outputs now at this point you should understand that USB type-c is pretty much an all-rounder but what I personally like the most is the implemented power delivery protocol with its source and sync device can communicate over the configuration Channel what kind of voltage levels should be sent over thus a suitable source can provide 5 volts 9 volts 12 volts 15 volts and 20 volts with a current value of up to 5 amps and therefore power of up to 1 what's to properly understand how useful that is let's take a look at this ordinary seventy two point three six what our power bank to charge it up I'm using a generic phone charger which after hooking a USB tester up to its I directly connected to the power banks micro USB inputs and as you can see we charge with common five foods at the power of eleven point five watts which means that charger would ideally require around six point three hours to completely charge the power bank but if we get ourselves the same size power bank but this time with us PPD aka power delivery functionality then we can use a compatible USB PD ChaCha once again hooked up to USB tester in order to charge up the power bank much faster this time we cut around twenty volts at a power of 28 watts which means the charge time would decrease to only two point six hours which is a significant difference now to better experiment with this power delivery feature Verte electronic sent mia development kits which came with two source PCBs and one sync PCB and after playing around with the PCBs for quite a while and trying out a few different things which were not all successful I started to wonder whether there exists a smaller PCB version of a sink because the one I'm using would certainly be too big and expensive for projects that is when I discovered this small PCB which is based around an STM 32 microcontroller after connecting its two compatible power delivery device we can use its push button to change the output voltage up to a maximum of twenty volts and yes you can even draw almost five amps with it's the voltage value is also visually represented by the color of the circuits RGB LED and in order to prevent the circuit from outputting only 5 volts at the startup we need to hold down the push button while plugging in the connector which enters the programming modes then we select the desired output voltage and hold down the button once again in order to save it and just like that I can easily get 12 volts from my PD power bank whenever I need it which is quite handy because this way I do not have to use a boost converter when powering 12 volts electronics from a power bank but you do not have to stop at 12 volts with this setup you can power a wide variety of electronics projects easily which I will certainly do in future projects and with that being said you should now understand why USB type-c and especially power delivery are just awesome but if you want to learn even more about the subjects or get the components are used in this video then make sure to have a look in the video description as always I hope you enjoyed this video and learned something new if so then don't forget to Like share subscribe and hitting the notification below stay creative and I will see you next time

Channel: GreatScott!

Views: 1,411,059

Keywords: usb, type c, type-c, usb c, pd, power, delivery, tutorial, guide, beginner, beginners, diy, compare, comparison, usb 2, usb 3, difference, speed, data, rate, pin, pins, protocol, cc, config, configuration, channel, voltage, current, powerbank, quick, charge, 20V, 15V, 12V, pcb, zy12pdn, sink, source, development, kit, würth, elektronik, plug, connector, port, hdmi, displayport, alternate, mode, 100W, electronic, electronics, project, smartphone, nintendo, switch, pc, greatscott, greatscott!, charger, tester, test

Id: OwAZqJ4wpJg

Length: 9min 28sec (568 seconds)

Published: Sun Nov 17 2019

Reddit Comments

[u/Talulabelle]

I would say not directly cyberdeck related, except these basic power concepts seem to often be sticking points with beginners, and since a lot of people will be moving into USB-C to power devices I think this is a really good rundown on how the new standard will effect designs in the future.

[u/samsifpv]

Definitely better than a step up, because there would be 2 step ups in the line then. The power bank always has a step-up to 5v, but with USB PD the step up can go up to 20V. And 1 step-up is definitely more power friendly.

[u/nevercleverer]

As a newbie to the pi/homelab/cyberdeck communities, I really appreciate videos and resources like these. I haven't done any actual building yet, but I have a few ideas rattling around and this is very helpful.

Thanks!

[u/brimston3-]

"These little boards" refers to the ZY12PDN, which is legible for about two seconds in the video and doesn't appear in the video description.

[u/Josephdalepi]

Ayyo, check out what I've been building. 12v is no longer within type c spec, and I've been trying but most boost buck converters cant do the full range of usb c delivery and maintain a constant voltage at over 30 watts, I'll tell you when I get it sorted

It was part of the spec, look up type c pd 3.0 vs 2.0

[u/Flonxu]

This is cool, if I was using a usb-c powerbank. But will definitely save this.