100A Continuous 200A Spike PWM Speed Controller for Trolling Motor
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- Опубліковано 7 лют 2025
- In this video, I review a 100A continuous draw and 200A spike PWM speed controller for use with a trolling motor. I used a Minn Kota 12V 45lb thrust trolling motor for this test. The PWM worked as it should and was very quiet during the testing. This PWM should allow for the use of larger lb thrust trolling motors which tend to fail with the 60A continuous and 100A spike PWMs. The PWM is listed in the parts section of this narrative.
Parts:
Qudai 100A/200A PWM (Pulse Width Modulator).
www.aliexpress...
I have been using this for 3 months almost daily now on a 55lb Newport. It's on an 11ft Zodiac inflatable. I put it in a project box, I added a fan directly on the heatsink, and another fan to move air in the box. So far I didn't have a single problem with it and I ran it for about 20 min at 35A continuously. I have a temp probe installed and it went fro m 28C ambient to 32C on load, which is perfect.
If anyone is interested in the components: there are 2 channels, one for fwd and one for reverse. For each channel, it has 2 relays with no inscription on them (they look like 80A each, so 160A per channel), 2 flyback STPS41H100CG Schottky diodes (80A per channel, which seems undersized), 8 mosfets STP75NF68 (80A each). The Mosfets have proper gate protection. The 8 capacitors are 470mf rated at 63V.
As a tip for anyone, I am using an APC propeller (10x5LH) instead of the stock prop. My speed increased from 3.9mph to 4.8 mph, while the max amp draw dropped from 48A to 34A. It's a huge battery saver. There are some videos on youtube with tests for speed and amps. Anyway, about the speed controller - so far so good, seems like a well made board.
Thanks for the update!
What a brick! the HW 880 makes this thing look like a relic.
Man that is a monster. 😊
I think. it will be hard to overload this unit.
@@Aksmaniyak Yes they have come a long way since the day I built mine, Yes, the the battery technology is also improving.
Great vid, that thing should be able to handle the larger motors some of us like to run.
I do wish you had done a amp compare at the end with and with out the pwm.
Thank you for reviewing this, you are probably the first on youtube to do it. How much can I bribe you to put the circuit board dimensions here without the metal encolsure? :)
Thank you. Haha...no bribe, I will check tomorrow.
@@Aksmaniyak Much appreciated! Yes, I linked above one of your videos for our friend to get some better air flow
@@AndiDan The board is almost the same as the dimensions in the video. It's about 4 1/4 inch wide and 8 1/2 inch length.
@@Aksmaniyak Thank you a bunch!
Awesome video. Thank you for all your videos and work on trolling motors for kayaks. I did not understand the part about the on/off switch. Can you clarify that?
Thanks. Normally the pot has an on/off switch, this does not.
The potentiometer has a built-in switch. So after you turn it down to zero, keep turning and it will switch off. The separate button has 3 positions: forward, off, reverse.
This potentiometer does not have a switch. That is why there are only 3 wires to it.
@@Aksmaniyak Ah, my bad. I didn't pay attention
😁It's ok, just funny!
So between an ESC and a PWM: which is more efficient, durable/reliable, easier to set-up, least expensive.... or did i miss that video? Thank you
It depends on your project.
@Aksmaniyak I have a 50# motor and 100AH lithium battery, on an inflatable fishing pontoon. Want speed control only. TY
@Aksmaniyak Happy Holiday
@@wykedmoose7642 Either set up would be ok. I don't recommend any motor larger than 50lbs with the 880 ESC.
Is it possible to disconnect the power percentage display and install wiring to extend it to display on an electrical box?
Yes, just any of the other components.
@@Aksmaniyak great, thank you for the videos. They have been a big help
@@CrayonEater815 Glad to help!
So what do you think, bought a Hangkai
65 lbs thrust, 55A, 660 W, 1420 rpm trolling motor would this PWM work. Or even Changing it to a 2 blade prop instead of the 3 blade it came with.
Or am I better off returning it for there 45 lb thrust model.
It would depend on your set up and what your usage is.
@@Aksmaniyak going to return it and get the 45 lb thrust model, Thank for your input
Sure, good luck with your build.
@@Aksmaniyak
Well ordered the 45lb motor but they offered me 45 refund to keep the 65 lb, so took the refund and will find out how it works.
Got two kayak so it will one with 65lb and the other with 45lb thrust.
ok i use a Minn Kota 12V 55lb thrust trolling motor and 100AH battery. I have melted the board on 3 of these 100A continuous draw and 200A spike PWM speed controller in less then 30 mins running time. What is the best sound proof way to go from here.
With a 55lber you don't have really any other choice than another PWM.
@@Aksmaniyak so an ESC wont hold 50 maps?
@@michaelsmolt7246 It would be sketchy using the HW 880 model that most do.
So I just got into the kayak fun. Have a minnkota 50 thrust. I’ve tried 2 of the pwm 60amps so far. They work great at first but after 15 mins they start smoking. I have racked my brain trying to get this thing to work so I can use it. Using a 12v lithium battery. Both pwm I’ve used was off Amazon. Do you think this would work for what I’m pushing? I’m no electrician by any means. I was wondering if it the trolling motor was pushing to many amps for the one I had. The pwm I ordered all had bad reviews. I’ve searched for answers for 2 months now
The 50A max is close to the max draw of the unit. The PWMs have quality issues at times.
Ok. Thank you. Ifigured that maybe it. I may try this one next. Havent even had a chance to use it yet except in the pond for testing.
I have removed the circuit board from the metal enclosure and place it in a plastic box. Then I added 2 fans in the plastic box, besides the fan that it already has on the heatsink. I was able to use a 62lb thrust newport at maximum for extended periods of time without the board getting hot. Actually the original poster here has a video with a box with air flow - this pretty much what I did, except I added 2 12V fans that suck air out of the box - ua-cam.com/video/fX6vg2U-W0s/v-deo.html
Nice. That is my video too.😁
Will this work with a minn kota endura c2 55lb and 100 ah lifepo4 battery?
Yes
I have this same PWM that you have
For some reason, mine is hooked up correctly, but it’s not responding
I tested the trolling motor. It definitely works.
Battery is good
All wiring is brand new connectors are securely tight
Red light will come on with fan
If you have any suggestions, I would appreciate it
Thank you
Great video by the way
But it will not respond to the trolling motor or vice versa
If you can help me with this, I would greatly appreciate it
Thanks Weldon. What trolling motor are you using?
Minnkota
Minnkota 30lb thrust
@@WeldonKrause Did you check the F/R switch?