Patent ID: 6577086
Filing Date: 2003-06-10
Classification: B62D,H02P,Y10S

Abstract:
A circuit for disconnecting a neutral point in an electric machine comprising:at least one inductance; at least one three-terminal solid-state switch, the at least one solid-state switch having a first terminal coupled to the at least one inductance, a second terminal coupled to the neutral point; and a third terminal for controlling a flow of current between the first terminal and the second terminal; and a controlling circuit coupled to the third terminal of the at least one three-terminal solid-state switch, the controlling circuit comprising: a first loop having a power source, at least one resistance, and a signal regulator to maintain a first signal at the third terminal of the at least one solid-state switch; and a second loop having the power source, the at least one resistance, and a trigger switch being controllably switched closed, to maintain a second signal at the third terminal of the at least one solid-state switch to thereby change the state of the at least one three-terminal solid-state switch.