Patent ID: 8466730

Claim:
A pulse generator comprising: a conduction path extending from a first DC input terminal to a second DC input terminal via a first branch and a second branch in sequence; an inductor inserted in a section from said first branch to said second branch in said conduction path and having a first excitation inductance; a switch circuit inserted in a portion other than said section of said conduction path, including a semiconductor switching device disposed in an environment having a relatively low temperature and electrically opening/closing said conduction path; a transformer including a primary winding having a first input terminal and a second input terminal and having a second excitation inductance that is higher than said first excitation inductance and a secondary winding having a first output terminal and a second output terminal, disposed in an environment having a relatively high temperature and is magnetically independent from said inductor; a transmission line including a first transmission wire electrically connecting said first branch and said first input terminal to each other and a second transmission wire electrically connecting said second branch and said second input terminal to each other; and a cooling mechanism for cooling said semiconductor switching device.