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    • 2. 发明申请
    • SWITCHING CONVERTER
    • 开关转换器
    • WO2006084789A1
    • 2006-08-17
    • PCT/EP2006/050395
    • 2006-01-24
    • DEUTSCHE THOMSON-BRANDT GMBHKÖGEL, ReinhardLOUVEL, Jean-paul
    • KÖGEL, ReinhardLOUVEL, Jean-paul
    • H02M3/158
    • H02M3/156
    • The switching converter contains a switching transistor (T4), a first inductance (L4) and a first diode (D4), which are connected so as to form a step-down converter for the purpose of producing a first rectified output voltage (UA4) from an input voltage (UE4) . The switching transistor (T4) is connected on the input side to the input voltage (UE4) via a second inductance (L5) , and a second diode (D5) is coupled to a tap (A) being arranged between the second inductance (L5) and the switching transistor (T4) for the purpose of producing a second rectified output voltage (UA5) . The second rectified output voltage is in this case unregulated, but can be used in particular as a supply voltage for a television tuner.
    • 开关转换器包括开关晶体管(T4),第一电感(L4)和第一二极管(D4),其连接以形成降压转换器,以产生第一整流输出电压(UA4) 从输入电压(UE4)。 开关晶体管(T4)经由第二电感(L5)在输入侧连接到输入电压(UE4),并且第二二极管(D5)耦合到布置在第二电感(L5)之间的抽头 )和开关晶体管(T4),以产生第二整流输出电压(UA5)。 在这种情况下,第二整流输出电压是未调节的,但是可以特别地用作电视调谐器的电源电压。