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    • 9. 发明申请
    • INVERTER TOPOLOGY FOR IMPROVED EFFICIENCY AND REDUCED HARMONIC DISTORTION AND ASSOCIATED METHODS
    • 改进效率和减少谐波失真的逆变器拓扑及相关方法
    • WO2010135171A1
    • 2010-11-25
    • PCT/US2010/034839
    • 2010-05-14
    • CAPTECH DEVELOPMENT CORPORATIONSULLIVAN, Mark
    • SULLIVAN, Mark
    • H02M7/60
    • H02M1/12H02M7/5387
    • An inverter circuit for generating an AC signal from a DC input comprises a primary inverter for generating a first portion of a signal, the primary inverter using switches that when actuated efficiently produce the first portion of the signal, the first portion of the signal being an approximation of a sine wave, the approximation of the sine wave having an error component; a secondary inverter for generating a second portion of the signal, the secondary inverter using switches to produce a waveform that attenuates the error component of the first portion of the signal; and combining means such as a transformer which combine the first and second portions of the generated signal to produce a substantially improved approximation of a sine wave. An inverter circuit may further comprise: a filter connected to the transformer for smoothing a residual carrier frequency from the secondary portion of the signal.
    • 用于从DC输入产生AC信号的逆变器电路包括用于产生信号的第一部分的主逆变器,所述主逆变器使用当致动时有效地产生信号的第一部分的开关,所述信号的第一部分是 正弦波的近似,具有误差分量的正弦波的近似; 用于产生信号的第二部分的次级逆变器,次级逆变器使用开关来产生衰减信号的第一部分的误差分量的波形; 以及组合装置,例如组合产生的信号的第一和第二部分的变压器,以产生基本上改进的正弦波近似。 逆变器电路还可以包括:连接到变压器的滤波器,用于从信号的次级部分平滑残余载波频率。