I am seeking a dynamic braking circuit that detects either when the voltage or the RPM of my wind turbine motor exceeds a certain limit then it either shorts the output of the wind turbine(but not doing a shunt pulse shorts-cause this would be dangerous to the motor) or it allows the motor to slow down and not exceeding the preset RPM speed of the circuit. In the case of shorting the output when it detects a certain or preset drop in voltage then it should be release and allows to spin again.