Assembling and Testing ESP32 H Bridge PCB

[@jafinch78]

Curious to see the code or GUI used to control. I'm supposed to be getting three free openinverter vers3 pcb boards to start playing with since looks like the code for the openverter and evbmw latest zombieverter is that same other than forks and personal versions. I'm trying to get back into since I invested in three Prius Gen3 inverter-converter assemblies as well as a CVT since I'm just amazed at the price of them from the salvage yards. I already own a 2013 Prius, so was thinking one day that the H-bridge in those are IGBT three phase designs capable of handling 100's of amps (I think like ~750 when MG1&MG2 are paralleled) and up to like ~600V or something like more than 400V offhand comes to mind as I forget looking at all the makes models recently. Took a slow relearning curve of the applied basics and high power parts I wasn't aware of with my prior knowledge and am now just thinking I can start learning more about what's on the market already and able to interface so I don't have to re-invent anything. The Zombieverter looks to be the most simple I've found so far. Oh, and then I was like... 20kW MG's in the CVT's (albeit asynchronous (brushless))... so at least 40KW's for under $100... what!?! So then I started thinking I can do something with one of my small engines like the Briggs and Stratton 18HP (since sort of sentimental like used in their hybrid car) to power a MG or the CVT might be easier so less fabrication work. Anyways, to make an engine welder that's a more modern inverter design and maybe add mains output. That then turned into why not only make a portable module that's literally the inverter-converter assembly with some additional interfaces attachable for being able to connect to any small engine generator 120-240VAC output (will need to be rectified) or welding power supply (rectified as well if not a DC source)? Figure gives an expanded set of goals to research what's on the markets already to save time and expenses in developing. Plus help reduce the E-waste of the high power parts now showing up in the yards like way great priced compared to new. Wow... hope that's not TMI. Thanks for sharing your work! Curious what your H-bridge interface looks like to control. That'd be a neat video... even going through the code related to the GUI or controls.

[@EV_engineer]

Hi, thanks for sharing! I'd be curious to do some projects with higher power H-bridge motor control as well, most of my projects have been low voltage. Here is a link to the code I used for testing: github.com/JoshMarangoni/rc_robot/blob/main/firmware/arduino/h_bridge_motor_test/h_bridge_motor_test.ino

[@jafinch78]

@@EV_engineer In regards to the openinverter vers3 boards... I'll keep you posted if you want one, once I get. Reads like he's sending to me for the cost of shipping, so I can do the same for one.

[@davidbartoli4483]

do you have the final schematic that you used for the board that includes two H bridges - looks amazing

[@EV_engineer]

Sure! Link in the description