Cobain Windsurfer
1 mW
- Joined
- Feb 28, 2018
- Messages
- 13
Some pictures of my mosfet swap out. The new IRFB4110 from is rated 100V. Found very good information about it here https://electricbike-blog.com/bbs02-controller-mods/
Very important to not have used the controller for some time before soldering shunts, mosfets and so on, or there will be shortcuts and sparks since the caps can hold electricity for a long time. To get rid of the old mosfets I found out the best way to do it without any damage is to wiggle them carefully back and forth one by one, until the legs of them snapped, and then clear the holes afterwards. I cut the legs of the new mosfets at the right length, screwed them on slightly on the heatplate, inserted them all in the PCB and solder all the legs. As pointed out before, soldering them to the PCB without attached to the heatplate will make it impossible to screw them on later (the hole of the mosfets and the ones in the heatplate will not line up). Now I am only waiting for the caps to arrive.
Very important to not have used the controller for some time before soldering shunts, mosfets and so on, or there will be shortcuts and sparks since the caps can hold electricity for a long time. To get rid of the old mosfets I found out the best way to do it without any damage is to wiggle them carefully back and forth one by one, until the legs of them snapped, and then clear the holes afterwards. I cut the legs of the new mosfets at the right length, screwed them on slightly on the heatplate, inserted them all in the PCB and solder all the legs. As pointed out before, soldering them to the PCB without attached to the heatplate will make it impossible to screw them on later (the hole of the mosfets and the ones in the heatplate will not line up). Now I am only waiting for the caps to arrive.