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    • 8. 发明申请
    • Zero-Voltage-Switching Scheme for High-Frequency Converter
    • 高频转换器的零电压切换方案
    • US20120063184A1
    • 2012-03-15
    • US13011888
    • 2011-01-22
    • Sudip K. Mazumder
    • Sudip K. Mazumder
    • H02M7/5387
    • H02M7/4807H02M2001/0058Y02B70/1491
    • Method for operating an ac/ac converter circuit for a high-frequency-link converter. The ac/ac converter circuit converts an ac input voltage to an ac output voltage. When the ac input voltage is zero, each of a pair of switches for both first and second arms are caused to be on. Current flows through the first arm along a first direction and through the second arm along a second, opposite direction. Next, when the ac input voltage is zero, a selected switch in the second arm is caused to be turned off. The position of the switches can be maintained as the ac input voltage transitions to a dc level, reaches the dc level, approaches zero, and again reaches zero. When the ac input voltage again reaches zero, the selected switch for the second arm is caused to be turned on.
    • 用于操作高频链路转换器的ac / ac转换器电路的方法。 交流/交流转换器电路将交流输入电压转换为交流输出电压。 当交流输入电压为零时,使第一和第二臂的一对开关中的每一个都导通。 电流沿着第一方向流过第一臂并沿第二相反方向穿过第二臂。 接下来,当交流输入电压为零时,使第二臂中的所选开关断开。 当交流输入电压转变到直流电平达到直流电平时,可以保持开关的位置接近零,并再次达到零。 当交流输入电压再次达到零时,使所选择的第二臂开关导通。
    • 10. 发明授权
    • Multiphase converter apparatus and method
    • 多相转换装置及方法
    • US07768800B2
    • 2010-08-03
    • US12334273
    • 2008-12-12
    • Sudip K. MazumderRongjun Huang
    • Sudip K. MazumderRongjun Huang
    • H02M3/335
    • H02M7/5387H02M5/458H02M2001/0054H02M2001/007Y02B70/1491
    • An ac/ac converter for accepting a pulsating dc input with encoded sinusoidal modulation and providing a multiphase modulated output. The converter comprises a bridge including a plurality of switches having switch legs for modulating the pulsating dc input at a carrier frequency over a plurality of phases. The bridge is coupled at one end to a pulsating dc source and coupled at another end to a modulated signal output. A controller is provided for the plurality of switches for causing, for each of the plurality of phases, under unity power factor, one of the switch legs to modulate the pulsating dc input at the carrier frequency while the other switch legs do not modulate the pulsating dc input at the carrier frequency.
    • 一种交流/交流转换器,用于接受具有编码正弦调制的脉动直流输入并提供多相调制输出。 该转换器包括一个桥,该桥包括多个具有用于在多个相位上以载波频率调制脉动直流输入的开关支路的开关。 该桥在一端耦合到脉动直流电源,并在另一端耦合到调制信号输出。 为多个开关提供一个控制器,用于使多个相位中的每一个在单位功率因数下,其中​​一个开关支路调制载波频率处的脉动直流输入,而另一个开关支路不调制脉动 直流输入在载波频率。