7Thomas Luttin. IGBT technology in high-power applications [ J]. International Railway Journal, 2000(4):28-29.
8Hans--Joachim Knaak. IGBT technology in traction con- verter-advantages and experiences of the new transistor technology [ J ]. Der nahverkehr, 1994 (12) : 23-28.
9Thomas Luttin. IGBT technology in high-power applications [ J ]. International Railway Journal,2001,359 (5) :44-46.
10Hans-Joachim Knaak. IGBT technology in traction convert- er-advantages and experiences of the new transistor technol- ogy [ J]. Der Nahverkehr, 1996,316(10) :4-10.