Animalector wrote:what's the switchmode control IC??? can anyone tell, I want to use a high voltage SMPS many max out at 75V
Yes, there must be at least some very simple logic that produces a block signal for switching the mosfet. i'll have a look. My unit is rated for a maximum voltage of 84V or 22s Li-ion
thanks , i use these since 5 years without major issues. From a dead stop. Sure there is a little yerk, but for the typical 48V/30A/1000W/50kph city commuter ebike it works just fine. Remember, i dont built motorcycles like you. I just figure out the power limit of this simple sensorless approach. 3000W would be nice. Now we have those ICs that can hear the grass grow, measure a few µV at high sampling rates, still they are cheap. There must be something better than these cheapo greentimes...buts that is OT.
I built 12 or 13 bikes with sensors and around 30 without. The last ones had a lot less trouble. Most of them still work with only maintenance issues so far (worn brakes, flat tyres etc). Ok must admit, the high powered ones where those with issues and sensors.
Sure Lebowskis thing is genius, still he cant compete with what large companies like Ti do (InstaSpin etc?). Or maybe he can? Benjamin Vedder got some quite robust algorithm running. I'll try that in a few weeks and compare it with the greentimes