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    • 1. 发明申请
    • Power converter
    • 电源转换器
    • US20060091867A1
    • 2006-05-04
    • US10534480
    • 2003-11-05
    • Thomas DurbaumReinhold ElferichTobias TolleJeffery Olsen
    • Thomas DurbaumReinhold ElferichTobias TolleJeffery Olsen
    • G05F1/40
    • H02M3/158H02M2003/1566
    • The invention relates to a power converter comprising an inductor 6 for receiving energy from a power supply 1, and connected to the inductor 6 an output capacitor 7 for providing an output voltage. In order to ensure a quick compensation of a reduction of load at the voltage output using few output capacitors, it is proposed that an additional current path 11,12 is arranged in parallel either to the inductor 6 or to the capacitor 7, which additional current path 11,12 can be opened and closed. A current flowing through the additional current path 11,12 reaches basically immediately a desired value, when the additional current path 11,12 is opened. Feedback means are moreover provided for opening the additional current path 11,12, when the output voltage reaches a predetermined maximum value. The invention relates equally to a corresponding method.
    • 本发明涉及一种功率转换器,其包括用于从电源1接收能量的电感器6,并且将电感器6连接到用于提供输出电压的输出电容器7。 为了确保使用少量输出电容器快速补偿在电压输出端的负载减小,建议将附加电流路径11,12并联设置到电感器6或电容器7,该附加电流 路径11,12可以打开和关闭。 当附加电流路径11,12打开时,流过附加电流路径11,12的电流基本上达到期望值。 此外,当输出电压达到预定的最大值时,提供反馈装置用于打开附加电流路径11,12。 本发明同样涉及相应的方法。
    • 6. 发明申请
    • Converter circuit and control method for same
    • 转换电路及其控制方法相同
    • US20050258889A1
    • 2005-11-24
    • US10527854
    • 2003-09-17
    • Tobias TolleThomas DurbaumReinhold Elferich
    • Tobias TolleThomas DurbaumReinhold Elferich
    • H02M1/00H02M1/38H03K17/687H03K17/04
    • H02M1/38H03K17/6871
    • In known converter circuits switching losses occur, which are caused by reverse-recovery currents of a freewheeling diode. To reduce said switching losses it is proposed by the invention to drive the switching elements such that, upon switching from the second to the first switching element, the timing is controlled in such a manner that the shoot through currents and the conduction of the freewheeling diode are kept at a low value or, better still, are precluded. As regards the control mechanism, it is proposed to turn on the first switching element later if shoot through currents occur, and to turn on the first switching element sooner if conduction of the freewheeling diode occurs. Here, a time of overlap may be provided during which both switching elements are simultaneously conducting. For the control mechanism, the voltage across a switching element can be used as a measured input value.
    • 在已知的转换器电路中,发生由续流二极管的反向恢复电流引起的开关损耗。 为了减少所述开关损耗,本发明提出了驱动开关元件,使得在从第二开关元件切换到第一开关元件时,以这样的方式控制时序,使得续流二极管的通过电流和导通 保持在低价值,还是更好地排除。 关于控制机构,如果发生穿越电流,则提出稍后接通第一开关元件,并且如果发生续流二极管的导通,则更快地接通第一开关元件。 这里,可以提供两个开关元件同时导通的重叠时间。 对于控制机构,开关元件两端的电压可以用作测量的输入值。