USB Type-C Power Delivery Trigger Board || DIY or Buy

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In this episode of DIY or Buy we will have a closer look at a USB Type-C Power Delivery Trigger board. Such boards are used to output 5V, 9V, 12V, 15V or even 20V from a Power Delivery compatible power source. So I will be showing you how such a commercial board works and I will try to create my own DIY version of it in order to see whether it makes sense to DIY such a board or whether we should stick to the commercial solution instead. Let's get started!
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Music:
2011 Lookalike by Bartlebeats
Killing Time, Kevin MacLeod
(incompetech.com)

[@ketandesai5326]

I suggest TVS diodes on those CC pins. You want to try avoid large transients on cable removals

[@Sverbog]

Could you elaborate what would cause the large transients? And why diodes would help that

[@ketandesai5326]

LC Raz When you unplug the cable, there is a spike in voltage. This is due to the storage of energy in reactive elements of the circuit. An example would be an inductive load, when you unplug it the magnetic field rapidly breaks down and induces a high voltage. A TVS diode works by depending on the voltage to exceed its breakdown voltage. Essentially when the Spike exceeds the breakdown voltage of the diode, the diode will shunt to ground.

[@crenn6977]

@FQD2N There is inductance everywhere, it might not be big, but it's there. Just because it's not on a cheap aliexpress board, doesn't mean it's not a good idea to have it. External interfaces (even USB connectors) should have some ESD protection minimum. TVSs are one way of doing that.

[@jawwadsabir4620]

LC Raz built-in transistors serve the same purpose.

[@nullptr4042]

@FQD2N see this guide www.ti.com/lit/wp/slyy105/slyy105.pdf?ts=1592861588015 from TI. You can also checkout the datasheet for a reputable USB PD implementation like the stusb4500qtr chip which includes protection for this type of thing in the typical application example. The circuit designed in this video is a very naive implemenation

[@AabhasLall]

As things get more and more advanced/complex, buy will usually end up being the winner. And buy has been the only choice for mission-critical applications. But that has never stopped us from tinkering around, and its always a great learning experience. Just like your videos!

[@Asu01]

USB PD is the best thing since sliced heatshrinks. I've been using it on most of my projects and the convenience is real.

[@GRBtutorials]

Wait, sliced heat shrinks? That exists?

[@rasmis]

@@GRBtutorials I think it's a joke on the anglophonic advertisement adage “best thing since sliced bread”. Which I've never understood. How are people incapable of slicing their own bread? Sliced bread has a shorter shelflife.

[@PhilippTV1000]

Well, it would be awsome if sliced heatshrink would exist. I always forget to put it on beforehand.

[@Asu01]

I'm not joking, they do exist. Just search as "heatshrink kit" and there are variety of them to choose. And as being the parody of "sliced bread", well that was my intention too but pre-cut heatshrinks are really convenient to use for me.

[@sandeepkothapally2905]

can you send schematic file of your USB_C pD? [e-mail]

[@kienanvella]

Diy would be the preferred method though in instances where you already are using a microcontroller for something else and needed power negotiation (eg in something like a soldering station for a TS 100 iron). If you have a specific use case where going the diy route will reduce part count it could definitely be worth it.

[@techtheguy5180]

This is QUAAALLLIITTYYY COOONNTTEEENNNNTTTTT; Great content as always

[@greatscottlab]

Thanks :-)

Why is the content so high quality? Of course, it is "Made in Germany" !!! :-)

[@9551Dev]

@ so true :D

[@ZsomborZsombibi]

I've just had the idea to use this as a fan driver (starting with 12v, then after the spin-up, reducing to 9v and 5v), and voilà, appears at the last scene :)

[@coced]

Making your own might be a waste of time, but your new understanding of the device is invaluable

[@sziluchannel]

5:23 ElectroBOOM: Don't do that, bro!

[@m4gg197]

dont get it

[@sziluchannel]

@@m4gg197 He is too close to that powered up circuit with that metal conductive screwdriver

[@m4gg197]

@@sziluchannel yeah but its only powered with 5-20 v on 5 amps. thats not dangerous is it?

[@sziluchannel]

@@m4gg197 Not dangerous, but he still can ruin his circuit with that screwdriver, as ElectroBOOM does always.

[@m4gg197]

Szilu Channel now l get it 😅

[@tjeulink]

now im reaaallly interrested in what makes usb-pd tick!

[@YonatanAvhar]

Well, you only have 600 pages to read!

[@tjeulink]

@@YonatanAvhar quarantine time *dabs*

[@bobobo1618]

If you want to inspect the USB PD protocol, I recommend the AVHzY CT-2. It's mainly used for triggering and measuring power draw (which it's fantastic for) but it'll also enumerate all the available power levels and connect to desktop software to show you all the messages going back and forth. Super handy, I used it for evaluating ~30 power banks. Also a minor nit: USB-PD isn't only for USB Type C. PD 1.0 works with micro-USB and type A/B. PD 2.0 is the main one you're a fan of I think, with the separate config channel on the Type C connector.

[@greatscottlab]

Thanks for the information

[@bobobo1618]

GreatScott! In case you didn't see, I edited my comment to add a little nitpick about PD and Type C. Don't want people to see your comment and think you're agreeing with something you didn't see.

[@sebrassino]

This is exactly the project I was currently working on! This is absolutely perfect timing! Solved 90% of my questions. Thanks

[@greatscottlab]

That is what I was hoping for :-)

[@sebrassino]

@@greatscottlab Yeah I was researching to make a single board design to power my dslr camera via usb-c PD. But after this I'm just going to combine two existing boards. That is as you concluded way easier.

[@gideonzweijtzer8784]

This is really a great video; thank you! I am planning to power a board with USB-C PD, and since the board power control is done with an ESP32 (which also allows OTA firmware updates and much more), it would be most convenient to buy an integrated solution, like CK224K. The issue there is, that it doesn't provide any status, so the only way to know if the triggering worked is to measure the voltage with an ADC input. It is not very convenient. Retargeting the PD software to ESP32 shouldn't be too difficult and gives much finer control. Plus, I can still use the D+/D- lines to reprogram the ESP32. In order of cost, I think the CK224K is about $0.60/pc @ 1000, and the FUSB302 is about $0.50/pc @ 1000. Then of course, there is the CYPD3177, but that one creeps closer towards $1/pc. I am still in doubt which part to use.

[@WarrenGarabrandt]

USB C is amazing, and PD is by far the best feature. I do wish that it was a bit simpler for DIY enthusiasts to actually implement for themselves.

[@techoollab8360]

Dear GreatScott, you are really amazing & you will not believe that you inspired me to do a lot of stuff in engineering. Good luck keep growing

[@nophead]

Everything about USB is way more complicated than it needs to be. That is what you get with something designed by a committee. And it has a fundamental design error. Although it is differential to give it noise immunity one of the signalling conditions makes both lines go the same way. The end result is noise can cause it to disconnect.

[@pierreuntel1970]

I'm glad that the negotiation process is complicated, you wouldn't want a crashed USB controller to fooling it into giving out 20V in the USB port

[@94XJ]

This is pretty much how I made a portable external monitor to carry with my laptop. An old 1080p laptop panel, cheap driver board, USB power bank and a 12v converter works well.

[@jakemeyer8188]

OMG How did I not know about USB-C PD? I'm super frustrated with myself right now, but very happy with you!

[@shaunclarke94]

If an Arduino can't even manage it with the help of an external IC, that pretty much sums up how complex the USB-C PD protocol is...

[@TheDanyschannel]

You never get free lunch in engineering. USB-C is extremely flexible and can do anything from USB, DP, audio and even PCI-E, but it comes at the cost of complicated configuration. Still it's a very cool protocol and there are some IC's that get the job done for PD with very little hassle

[@tmkkka8093]

Apollo 11 didn't stand a chance ;)

[@satibel]

It seems to me that it would definitely be doable if you're only concerned to use the arduino as a sink. The protocol isn't that complicated, the source offers a choice of available modes, the sink accept, the source confirms and then sends a packet when the power is stable. So you basically only need to extract the values from the available modes, and craft a packet to select the one you want which seems doable in 2k of ram (the packets are around 30 bits.) The basic sink implementation is fairly simple, but when you look into daisychaining, bidirectional PD etc.. It is complex.

[@noweare1]

@@satibel I think you came to the correct conclusion

DIY is not the winner but global knowledge improved a lot with this video

[@aisawaloki1571]

Thank you so much as I am searching for similar guidelines so far. And occasionally your this video solve my mystery failed similar attempt before: I mixed up between CCs and SUBs pins of the very same USBC female connector you are using... Thanks a lot again! p.s. 0:52 PD would in fact not deliver any power at all, neither the most basic 5V, if your device does simply only connect to the VBUS and GND pins, i.e. connect a non-USB-C device with a USB PD sink via passive adapters. This is because while VSUB of other type-A based fast charging (as well as legacy USB) would always have at least 5V, a compliance USBC PD source would instead have no voltages (or so called "high impedance") until it detected something is connected, by detecting if either one CC pin is pulled down by the sink, which is pulled up by the source itself. As non-USB-C does not have CC pins as all it do not "power up" any PD sources.

[@alejandroresendez1388]

Hi, I recently tried the JLC PCB service because of your videos and turns out it's a great service. $2+Shipping for 5, 2 layer PCB's as advertised, and high quality PCB's, compared to those from Pentalogix wich usually cost at least $40 the piece for boards of the same sizes. Only issue is of course wait time but even if you pay another $20 for priority shipping would still be cheaper

[@Rtech98]

Just starting out in PCB design. Hoping I can get to this point one day where I can make a bunch of my own projects/designs. Thanks for the inspiration.

[@3DRC-707]

Why is his voice so soothing?

[@3DRC-707]

Is it the accent? Tone? A combination?!

[@xani666]

Just read USB-PD spec. Your love for it will pass very quickly :D It is soooo overly complicated

[@JennyEverywhere]

That's why I use a smart cable instead of building sink circuits into my gear.

[@kienanvella]

It has to meet many needs for many different devices, so of course it will be complicated. Just imagine how complicated usb 4 will be since it will be thunderbolt compatible as well.

[@satibel]

It needs to be compatible with future implementations, you'd be out of spec as far as what is allowed, but I'm pretty sure you could negotiate 230V ac on the usb pd spec.

[@vikramk3499]

Hey why not try out the quick charge trigger board, it only involves applying certain voltages to the USB data lines... Although it might give as much power as usb C , 12volts with 2 amps should be more than enough for many projects

[@honestcomment9159]

Has anyone ever said that your accent is strange? Good videos and luck for subtitles. Thank you.

[@Lumi_nance]

he's german, so... pretty decent

[@mbass-tt5dc]

I would have liked to seen this before I killed my phone trying

[@p_mouse8676]

Somebody lost weight. Good on you Scott!

[@greatscottlab]

Thank :-)

[@peterrasmussen7545]

I got shocked. I knew I knew this voice........the I saw it was you I watch a lot of your videos............but never seen you face............now I have Thank for the videos Grüß aus Dänemark 😅😂😅😂😅😂😅😂😅

[@chillwithelectronics7896]

Your explanation is very helpful

[@greatscottlab]

Glad it was helpful!

[@adnansikandar2332]

Can you make an ultrasonic fabric welder for welding ear loops of surgical masks? A much needed project these days. Thanks in advance

[@nadravface]

Thank you for this video. Yes the winner can be buy, but it worth making simple enough library like QC3 control to make projects with PD more affordable. Again thank you

[@dradish2827]

These videos are very beautiful and very useful to the most beautiful in it is the method of presentation and voice comment, and I love you very much

[@greatscottlab]

Thank you very much!

[@metabir]

Nice, great video as always. Random question: have you ever thought of using your skills to get into eurorack modular synthesis / electronic music? It would be nice to watch some content like that on your channel.

[@greatscottlab]

Maybe one day!

[@QuantumBraced]

0:57 What multimeter is this?

[@michal_c9007]

Meanwhile, on Quick charge, you need 2 resistors and NC switch and done 12V 1.5A

[@Electronzap]

Oh nice, I knew about voltage boosters and love them, but that USB-C Power Delivery trigger board is a lot easier to use :)

[@Buizie]

Hearing USB PD delivering up to 100w tempts me to power my uBitx and 45w amplifier in the field just with that powerbank alone 👀

[@JohnSmithZen]

2K of RAM to tell a chip what voltage to output.... Great video!

[@fireracerworkshop8251]

After watching this video on power delivery function of type c usb, I think I have to say electronics a goodbye. This is way way more complicated for me to understand. I really salute the makers and developers of usb type c.

[@rangwankasantikul9223]

I would like to see DIY or Buy: Spectrometer. Would like to see a cheap spectrometer that is good enough for measuring light quality. Such commercial devices are at least $500 which is way too rich for my blood.

[@senceryazici]

I wonder if there are host modules, where you can attach it to a let’s say 12V source and it outputs USB C PD at 5V/12V/15V/20V 60W at least? For using in diy powerbank projects and also those big power banks so called solar generators(creative naming though :))?

[@the_tag]

Sir your subscriber from India. #staysafe

[@Regimantas_Baublys]

Quick Charge is better with mcu and couple resistors can get same voltages

[@DancePartyAttack]

Would you make a video about how to communicate with a canopen device using a teensy

[@KingdomChablo]

but how do you reduce the voltage? clicking the tactile button in this example means raising the potential. How do you decrease it? Also is the use of this USB type c in this example only for power delivery? not for anything else.

[@LucasHartmann]

This over got me by surprise. USB PD negotiation requiring over 2kB SRAM does not feel right, though.

[@bilaliqbal2891]

You are doing Great...love you

[@hafizhnabawi1707]

In my country Finding such as type C connector is a rare one since its a new thing in my country (Micro USB is most common one here)

[@ducki8845]

Can you make a video about Battery Resistance Meter?

[@adrianbadea1179]

I have a 12v air pump for car... I want to use it with a transformer... I do have one 12v 1,5 amp.. The pump is starting but when the pressure is growing.. The motor is dying... What should I do? 🤔🙄

[@TheDutchFighters]

Hey, can you do a diy or buy for a looping station for instruments. They are not really cheap.

[@adityapalsingh7701]

1:30 HEY calm down you murdered a fly there !!!. love your work by the way

[@alejandropinarruiz2209]

Hello, do you have any video about or know how to recharge an internal battery for example 18650 while mantaining usb data conection with the device? Thank you:D

[@thecatofnineswords]

Ehmagherd, your face! It is good to finally see you ^_^

[@ColinWatters]

There are several trigger pcbs available but is there one that does the other end? Eg so you can do something like convert a PC power supply into a USB C PD "charger"? What do they put in car chargers?

[@bomxacalaka2033]

Suggested comment: I like your videos, subscribed.

[@prakashchandrabehera6437]

Can you check the safety of dt830d digital multimeter plz and make a video about it

[@sanb3586]

Please try soldering smd with car halogen bulb

[@akhurash]

Interesting project. The circuit can be incorporated into larger projects where a custom PCB is used for a more clean look.

[@greatscottlab]

Yes, definitely possible.

[@techtheguy5180]

Wtf comment added 5 daus ago but is only 1 min of upload

[@BenCos2018]

@@techtheguy5180 patreon supporters get to see videos a few days earlier I think

[@0jhonyrod0]

Can you talk about the PPS protocol in a future video? It would be really cool to convert a charger into a benchtop "μPSU".

[@davidgunther8428]

I thought USB PD output can be programed in 20mV steps? Are there boards that provide access to this, so you can make any PD wall adapter into a programmable/tunable voltage source (maybe even with current limiting)? I've been wanting to combine PD negotiation with solar MPPT function so I can avoid using a large battery to buffer the energy from a solar panel to the charging device.

[@sumitzope7536]

Can make video on 2 seprate power out from signal battery.(seprate + & -ve terminal).I think this made using coils but no deep info about it.

[@elecmotivation]

Learning more on USB type C from U, Thanks man!!!!

[@greatscottlab]

You're welcome :-)

[@marekkarlicek]

I tried QC3.0 with just few resistors and arduino library, there was no problem

[@ShahZahid]

at least we can agree on using any type of usb over wireless

[@sanatanbhaktichanel]

sir ,can you provide more details about this project, .....i am intrested

[@sampirat]

have you check out the CH224 chip ? seams to be all you need.

[@JohnDoe-nq4du]

Sure, DIY is complex, but it is at least technically possible to do. Is Buy even an option at all for these? I've got some stuff I'd like to power off USB-C, and I've been unable to find a board to buy that will do the handshaking and give me a voltage out the other side that I can actually use.

[@user-rg1jp2us4o]

The way you look and the way you sound are polar opposites. But both are great.

[@greatscottlab]

Thanks :-)

[@tulsiojha3207]

I have a router that is powered by ac to 12v dc adapter. I want to power my router using 12v solar battery. Should i connect it directly. I am confused with current. Will the router determines how much current it wants to use, because in cause of led we have to use current limiting resistor? Sorry for noob question.

[@artofelectronics]

Very amazing. Thanks for your great tutorial about USB type C power delivery.

[@greatscottlab]

Glad it was helpful!

[@farhans2650]

Hey Scott suggest me a basic electronics and digital electronics book . thankyou

[@MaulikParmar210]

[Spoiler: Long Reply] Of course you don't want to fry your peripherals that's why negotiations are there to make sure everything works seamless. It hides all the complexity behind specific IC that handles it, giving ease of use to end consumer. That's how we evolve and innovate technologies. I remember when physical serial and parallel ports were even a thing in computers and now they are wrapped on top of USB interface with almost all controllers talking to host computer with dedicated usb to serial IC or with FTDI board. You as a consumer just take it for granted while it is still possible to have such ports on computers. Sheer complexity is not new to computing world and you would be wondering what they used to make general purpose computers and how all the complexity is hidden behind whole programming toolchain. Industry phase out old things and introduce new things in order to keep things moving, rather good or bad. Speaking of protocol: Not only the protocol allows negotiations with power delivery at physical layer with built-in tests but also allows devices to negotiate which one will act as host in usb specs, that's important because slave device will usually be driven by host and since usb-c is reversible having unified interface, it makes sense to include such basic negotiations with proper register based data line signaling rather than old on/off signaling. Because that's how computers talk to pheripherals. A simple ASIC will do the job for devices with fix usage while keeping specification open for more productive usage. Keeping it as small as possible is goal here, no matter the complexity behind it. Anyways we all have alot to learn yet, and you might want to look into ARM, TI, Broadcom or STMicroelectronics docs for more advanced microcontroller usages, modern microcontroller have become almost small microprocessors, just not with all the perks yet :)

[@avejst]

Wow, great walkthrough/project Thanks for sharing 👍😀

[@userou-ig1ze]

omg, not enough sram TO SWITCH VOLTAGE. This is insane. Thanks for this!

[@MisoNyah]

It sounds a bit nonsensical to me. Perhaps it was just much easier instead of rewriting everything.

[@userou-ig1ze]

@@MisoNyah what exactly sounded nonsensical and why?

[@AntonKhrapov]

I stumbled across a video on a Russian channel about using QC2+ as a lab supply (sorta) with QC3 being able to be adjusted to within 200mv. It would be interesting to see your take on this.

[@Divyesh_Sinha]

What if we set the output to 20V and connect it to a 12v PD 3.0 charger Will it give 12v output or stay at 5v until a suitable 20v PD charger is connected

[@wodddj]

can you make a diy pd power supply?

[@greatscottlab]

It is on my to do list

[@markdebono1273]

I have a Lenovo USB-C PD charger and I need a constant voltage (up to 20Vdc) to power a 775 DC motor. Is it possible to just tap the last electrolytic capacitor on the circuit board without using a trigger board?

[@matyastomoga9944]

Scott, you said that you've got the pcbs along with the components. Did you get them in the same box? Because I can't find the way at jlcpcb and lcsc to order the pcb and the parts together, with one shipping fee. Could you help?

[@Allan-]

Thanks Scott for the informative video. I have just ordered one of those PD boards and going to try it out.

[@greatscottlab]

Have fun!

[@Wayno_Complaino]

Would be cool to see a diy usb-c 18650 powerbank video. Keep up the good work.

[@greatscottlab]

On my to do list

[@mitsicherheitzursicherheit9344]

Wait... you wanna tell me i could run like a 100w Lamp with a Powerbank? Does this only works for USB-C or with Micro-USB, Lightning & Co too?

[@rickybobbyracing9106]

What if I wanted to charge my USB-C phone off of 18v tool batteries. This isn't the PD board I would need right? What kind of board would that be? I want to 3d print an adapter that will go on to my tool battery, and have the output be USB-C PD

[@developmentsolutions840]

Great job. Wish I could get free stuff to work on lol. Love the videos. You sure learn alot keep up the great work

[@artfuncraft2649]

When will you make video about how to make monitor from phone's screen and how to use camera modules salveged from mobiles ?? BTW DSI to mipi adapter board is available on aliexpress

[@sunnyvestordb3240]

Can u try to make pulse inverter transformer

[@Nekit147]

I think “buy” version uses STM X-CUBE-USB-PD library to implement PD functionality

[@henrybs14]

Just ordered the parts to start doing this project. Can we power our Arduino directly from the USB-C? Or do you know if it needs powering separately?

[@JohnsonNMaina-db6gf]

Can one use a laptops battery bms to charge lithium ion cells.? I have an image of one that can be used as an example but I am not sure how to share it with you.

[@fritzwalter1112]

I drives me crazy, when i See hin solidering directly to Arduinos or ESPs

[@sandeepkulkarni3695]

Ya Bro

[@marcusdasilva1649]

Why?

[@skellious]

@@marcusdasilva1649 because header pins are a thing

[@Hulkeq2]

I have some serious beef with the Raspberry PI foundation forcing people to buy their proprietary power adapter for use with the PI5. within PD spec asking for 5A over 5V is not allowed. If you want 25 watt you need to use a higher voltage. Do you know of an IC that can be used to make a PD delivery port instead of a ""client" PD trigger board. That way I can use a buck converter to convert the 9V the PD is supplying me to 5V and deliver that up to 5A over the delivery port to the PI5 . They sell their bs as a cost cutting measure for their PI5 but I , like most sane people know going out of spec is just to sell more of their adapters instead of using generic ones that can deliver just as much power but over allowed voltages. Cheers.

[@DanielsGameVault]

I knew about half way in what the conclusion would be :))

[@lillyeditable]

Hello! Great video, so much information. I know this is an old video, but maybe someone can explain to me. I have a broken Lenovo laptop charger that had a broken USB c connector that I want to fix. I cut the cable and (unfortunately) throw the USB C connector away. Now, months later, I see its only two wires(red and black) and shielding inside. How is possible going to work? I only have ca3,85v between red and black. I understand it need to have a PD cabel, but how can it communicate with the charger? Greatfull for tips!

[@TrippsiTV]

Hey Guys, I think this USBC Technology seems to be a solution to my problem! I am very new to the field of electrical engineering and would like to try my hand at a larger project for the first time. For this project I want to use a 12V (250-300 mA) pump and a microcontroller (STM32F103C8T6 "Blue Pill"). Would it be possible to realize such a project with the trigger board shown here? If so, how is it possible to supply the 12V pump and the 3.3V microcontroller simultaneously without destroying anything? I would be very happy about tips!

[@pretendanought]

Another anazing video,Where did you get the awesome T-shirt? Is it your own design?

[@greatscottlab]

Yes. You can find it on my teespring store.

[@pretendanought]

@@greatscottlab Thank you so much.

[@ianchim4002]

0:35 100 watts of *powah*

[@PrajjalakChattopadhyay]

Does the DIY or Buy version stores the previous stage? For eg, of I configure the output voltage to be 12V by pressing the push button, and then power down, will it start at 12V next time, or back to 5V? This feature will be much more suitable for permanent projects.