Patent ID: 8755491
Filing Date: 2014-06-17
Classification: A61B,H05G

Abstract:
1. An X-ray generator for generating a fast rise-time pulse, said generator comprising: a n-phase poly-phase transformer having at least one primary winding and at least one secondary winding per phase; n rectifier circuits, each one of said n rectifier circuits being electrically coupled to each of said at least one secondary winding per phase, each of said n rectifier circuits comprising at least a first capacitor electrically coupled to at least a first rectifier, said first rectifier electrically disposed between said at least one secondary winding and said first capacitor and configured to provide a fast rise time of a leading edge of a fast rise-time pulse, and at least a second capacitor electrically coupled to at least a second rectifier, said second rectifier being electrically disposed between said at least one secondary winding and said second capacitor configured to provide a filtered n-phase pulse flat-top; and at least n active control switches, each of said active control switches being electrically coupled to at least one of said primary winding and configured to set a selected one of rectifier mode: 1) a fast pulse rise-time mode and 2) a flat-top low ripple mode, and wherein each of said first capacitors is charged by a rectified phase ripple of less than n at or before a leading edge of said fast rise-time pulse, and each of said second capacitors is configured to operate with an n-phase ripple to provide a substantially flat top of said fast rise-time pulse.