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It may be the lighting on the picture but the actual connection of the source seems fairly solid and thick; I went back and looked at the board more closely after your comment.
What about the current limiting circuit, any suggestions where this maybe taking place? (Again, going on with a...
Hi,
The controller should have (according to the specs) a low voltage cut-off at 20v and I am fairly certain the batteries were still charged well above 20 when this happened. Will certainly try to replace the mosfet with your recommendation but also will post additional info to see if I can...
I could not find a current sensing resistor unless it is soldered on the board and I missed it when tinkering with a multimeter. Based on your response, I realize that this is over my head (probably the juice is not worth the squeeze at this point) and will be much easier to get a more expensive...
Hi Brad, the MOSFET and the diode were attached to the aluminum casing and the casing was acting as a heat-shield. The contact seemed pretty good when I opened the case... I have not experimented with the lesser power supply voltage but I know that it also has a low-voltage protection and will...
Thank you, Brad.
OK. so, it is possible... I got it used and have no history but I know it is weaker than another similar scooter by a factor of 2-3. I will check the winding just to confirm and try to buy another one.
My child's scooter (Razor E300) has 250W motor but it is very weak compared to what I have experienced before with the similar scooter. Cannot pull anybody over 70lbs even on a slight hill. Is it possible that part of the motor winding is not functioning? is there such a thing or it either works...
Need an advice to prevent the MOSFET from blowing up on a motor controller. Below is more info with little background:
After spending days reading online about different controller designs, I have given up the aspiration of figuring out how these things work. Just trying to get a scooter...
Do you suspect there was a short-circuit somewhere or is this a specific type of current limiting? Sorry, I am new to the field. It happened on two separate drivers with different motors in each case. In both cases, the motors worked fine until I put load on them and then the ED blew up within 1...
Thank you! I guess I have to be more specific in my question. Sorry, I am asking for lots of handholding but, like I said, I am more mechanically inclined and exhausted my intellectual resources trying to figure this out. I tried several guides for datasheets but did not get far (listed at the...
Below is a long version of my post but basically I have hard time reading the datasheet - it is like a foreign language to me. please help figure out what pins need what kind of input in order to connect the driver to step/dir input and have the motors running. I am guessing these pins are...
I am having terrible problems with high currents and Easydriver and already fried two of them (with sparks and smoke coming out of the main IC and the chip getting a huge bump from the "explosion"). both are related to excessive current requirements but I thought EasyDriver limited the max...
OK. Then it must be me, really!!! None of the 5 points are related to my question and you took time to write them up - so you must be trying. I just need to share with someone else to see if I am missing something terribly big when asking the question:
1) question was whether the stated...
Hi ZASto,
Yes, you caught me red handed: I missed this (forgot that it said kHz and not Hz when switching the pages). Problem solved!!!
You are an advanced member and hope you can make a difference when "elders" get together, maybe not, but here is my little frustration: I posted this question...
Some more clarification where the confusion lies:
I have both unipolar and bipolar motors that were paired with these drivers/controllers posted (one set is coming from an older commercial printer and another from a commercial mail-sorting equipment) and wanted to reuse them.
Maybe I am...
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