Patent ID: 7633259
Filing Date: 2009-12-15
Classification: H02P

Abstract:
1. A method of operating an electrical machine comprising: providing a brushless excitation system including at least one rectifier having at least one diode; electrically coupling at least one voltage amplitude limiter assembly in parallel to each of the at least one diode, wherein the at least one voltage amplitude limiter assembly includes at least one voltage suppression unit that includes at least one resistor electrically coupled to at least one transient voltage suppressor; electrically coupling the at least one voltage amplitude limiter assembly and the at least one diode to an electrical signal source, wherein the at least one diode enables an electrical current flow in a first direction and inhibits current flow in a second direction that is opposite the first direction; receiving an electrical signal having a current and a voltage at each voltage amplitude limiter assembly, the voltage having an amplitude; and receiving the electrical signal at the rectifier and the voltage amplitude limiter assembly such that voltage amplitude excursions of the electrical signal are facilitated to be reduced.