Inductorless switched-capacitor inverter with high power density
Inductorless switched-capacitor inverter with high power density
复制标题
高功率密度无感开关电容逆变器
DOI：
10.1109/pesc.1995.474977
复制
发表时间：
1995
期刊：
影响因子：
--
通讯作者：
A. Ioinovici
中科院分区：
文献类型：
--
作者：
O. Mak;A. Ioinovici
提出了一种不含磁性器件的DC-AC逆变器。能量通过受控开关电容（SC）电路从非稳压线路传输到稳压正弦输出。SC电路由两个对称的子电路组成，它们在开关周期的每个半周期中反相工作：当其中一个处于充电状态时，另一个处于放电状态。输出正弦波的典型周期是在64步实现的。任何一步中的开关周期都是由四个相组成的，偶数相起调节作用。使用占空比控制。该逆变器具有体积小、重量轻、效率高、交流输出干净、对线路或负载变化大的调节能力强等特点。<<ETX>>
A DC-AC inverter containing no magnetic devices is proposed. The energy is transferred from an unregulated line to a regulated sinusoidal output through a controlled switched-capacitor (SC) circuit. The SC circuit is formed by two symmetrical sub-circuits, which operate in anti-phase in each half-cycle of a switching period: when one of them is in the charging state, the other one is in the discharging state. A typical period of the output sinusoid is realized in 64 steps. Any switching cycle in a step is formed by four phases, the even phases playing a regulation role. A duty-cycle control is used. The inverter exhibits small size, low weight, good efficiency, clean AC output, good regulation capability with respect to large changes in line or load.<<ETX>>