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2024-09-29 4:38 pm
Need a power supply for your latest creation? Use USB-PD to get 5, 9, 12, 15, or 20 volts from a USB adapter! It’s easy and inexpensive.
One of the primary considerations when building electronics projects is how you will provide power for them. If you’re not using batteries (or rechargeable ones), you’ll need to find an inexpensive source of DC power that is certified for use in your locale.
Enter USB-PD. Unlike “regular” USB, USB-PD is not limited to five volts at a low current. Instead, using a supply with a USB-C connector, you can select voltages up to 20 volts and currents as high as 5 amperes.
Best of all, USB-PD is simple and inexpensive to implement, thanks to the availability of low-cost “Trigger” modules.
Today, I will show you how to use USB-PSD in your projects. We’ll learn how the USB standard has evolved in the nearly three decades since its inception, and we’ll see how easy it is to use trigger modules to get the voltage and current your project requires. We will also look at advanced boards from Adafruit and SparkFun that can allow you to control your power with a microcontroller.
Here is the outline of today's video:
00:00 - Introduction
01:54 - Universal Serial Bus
09:10 - USB-PD Chargers
11:47 - 5V from USB-C
13:28 - Power Trigger Modules
16:16 - Trigger Module Demos
19:15 - Adafruit HUSB238
24:53 - SparkFun Power Delivery Board
33:13 - Conclusion
You’ll find that USB-PD is the solution for many of your power supply needs. Stay tuned, as I have more USB-PD projects coming soon.
"Never trust a computer you can’t throw out a window." — Steve Wozniak
2024-10-04 3:01 pm
Thanks for sharing. It will help many.
2025-01-28 7:44 pm
fingers crossed this is in in the right place.
project: make ATX bench top power supply
addition to project : include PD charging USB ports for my iPhone and other devices
question: is there a module or chip that i can wire in to supply PD charging for my iPhone.
2025-01-28 11:53 pm
@electronic-zookeeper Just an FYI, the ATX project is another Topic.
There are a couple of USB PD chips, the TI chip will need a oven or hot plate to solder TPS25750
and the MPS chip, looks like it is also needing an oven or hot plate mp5031
First computer 1959. Retired from my own computer company 2004.
Hardware - Expert in 1401, 360, fairly knowledge in PC plus numerous MPU's & MCU's
Major Languages - Machine language, 360 Macro Assembler, Intel Assembler, PL/I and PL1, Pascal, Basic, C plus numerous job control and scripting languages.
My personal scorecard is now 1 PC hardware fix (circa 1982), 1 open source fix (at age 82), and 2 zero day bugs in a major OS.
2025-01-30 10:22 am
@zander hay zander thanks for contributing
ive just ordered a few of these and see how i go
DC-DC Fast Charge Module 6~32V to 5V/3A - DFRobot
ps i posted here as it was more a PD charger question than a atx
This post was modified 2 months ago by electronic zookeeper
2025-01-30 1:06 pm
@electronic-zookeeper Ok, but that isn't PD, and if you do want PD, you need to know and implement the 2 way protocol to make it work. BTW, when you destroy your very expensive Apple phone, it will not be covered by the Apple warranty.
First computer 1959. Retired from my own computer company 2004.
Hardware - Expert in 1401, 360, fairly knowledge in PC plus numerous MPU's & MCU's
Major Languages - Machine language, 360 Macro Assembler, Intel Assembler, PL/I and PL1, Pascal, Basic, C plus numerous job control and scripting languages.
My personal scorecard is now 1 PC hardware fix (circa 1982), 1 open source fix (at age 82), and 2 zero day bugs in a major OS.