Can I use a mosfet without a controller board?

[aab1]

Is there a way to wire a mosfet with no or minimal additional components (no computer like in regular controllers, at least mine has a motorola 8 mhz cpu with a few KB ram and 32 KB storage space for the software that controls everything on the bike). Can I simply wire one like a relay? What voltage is needed to open it? Could I make a simple circuit with a push button that would activate a mosfet that powers the motor? I currently use a relay but I must accelerate to 15km/h before pressing the button otherwise the high amperage required for acceleration melts the relay. I'm hoping I could at least replace the relay with a mosfet to allow me to use the motor to accelerate also rather than only to help maintain speed.

Thanks

 

[Ian]

It is possble, a few volts on the gate (with respect to the source) will turn the mosfet on, but without the proper electronics to give it a "soft start" it is likely to suffer the same fate as your relay.