Both are hall sensor controllers.The controller from my YosePower kit is labelled "KT36ZWSR-EP01". I have always been interpreting "ZWSR" as square wave and "SVPRD", as in KT36/48SVPRD-17A, as sine wave.
I welcome any and all education
36ZWSR even states Hall sensor next to the SPEED SET: on the right. Also has the universal 9 pin connector.
Caps are 50v rated so will not except more then 12s @ 4.1v to be safe.
I think all 36v kt start 36ZW.
36/48 SVPRD is dual voltage model with hall but with 3 separate phase wires and 6 wire hall block.
Caps are 63v rated so will except 13s 48v quite easily.
Square wave only have 3 thick phase wires and no thin halls.