Just thought I’d share some success hacking cheap aliexpress boards using the JY01 chips, seeing how this chip shortage isnt going away soon and like everyone I’m struggling to find good drivers.
For my first tests I was just desoldering the JY01 chip and soldering loose wires on, like that thread. Then I realized 1.27mm headers are available and fit the chip’s footprint perfectly, so now I have a fairly neat solution I can have some confidence in and is quick to do (easy with smd rework for chip removal, maybe not so much with just a soldering iron):
The long board can be found under ‘XY-BLDC’ on aliexpress, and I’ve been running it on 18v @ ~4amps peak positioning a timing belt gantry with good results. Not sure how much the small heatsink can take but its miles better than the BTS7960 modules which overheated/died almost immediately.
The other is the basic 500W I see all over aliexpress. I’ve only wired this up without a heatsink to verify my chip replacement works, so I can’t say how stable it is.
I have a few spare of each for stress testing when I get around to it, so if there any tests anyone wants me to try let me know. Just got some 5065 motors which should be able to put them through their paces without overheating.
Was easier than I expected actually. Probably the first time I’ve used the rework station, took about 20sec to remove the chip (could probably carefully cut the leads off and desolder instead) some quick cleanup with solder braid and I just hand soldered the connector because I was too lazy to find some solder paste.
Any tests in particular? I’ve only really tested them in my particular application where they work fine, if you know of more specific tests I can try running them.
Hi, Stuv i’m also working on JY01 driver.Everything is working fine, but one thing is annoying me: when the motor is running fast for example 2000 RPM,and if I decrease the potentiometer to 0, then increase it quickly again, the motor tends to slow down hardly as a regen brake, instead of continuing the speed from its current speed.
