FM/PWM control scheme in class DE inverter
FM/PWM control scheme in class DE inverter
复制标题
DE类逆变器中的FM/PWM控制方案
DOI：
10.1109/tcsi.2004.830688
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
T. Yahagi
中科院分区：
文献类型：
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作者：
H. Sekiya;H. Koizumi;S. Mori;I. Sasase;Jianming Lu;T. Yahagi
本文提出了一种新的DE类逆变器控制方案，即调频/脉宽调制（FM/PWM）控制。此外，FM/PWM控制的DE类逆变器进行了分析，我们澄清的性能特点。由于FM/PWM控制的逆变器具有两个控制参数，即开关频率和导通占空比，因此它比具有常规控制方案的逆变器多一个控制自由度。增加的自由度用于最小化开关损耗。因此，可以以高功率转换效率控制输出功率以用于宽范围控制。进行了电路实验，我们证实，实验结果与理论预测定量吻合。例如，建议的控制逆变器可以控制输出电压从56%到191%的最佳的，这是设计为1.8 W，在1.0 MHz，保持超过90%的功率转换效率。
This paper presents a new control scheme for a Class DE inverter, that is, frequency modulation/pulsewidth modulation (FM/PWM) control. Further, the FM/PWM controlled Class DE inverter is analyzed and we clarify performance characteristics. Since the FM/PWM controlled inverter has two control parameters, namely, the switching frequency and the switch-on duty ratio, it has one more degree of freedom for the control than the inverter with the conventional control scheme. The increased degree of freedom is used to minimize the switching losses. Therefore, it is possible to control the output power with high power-conversion efficiency for wide-range control. Carrying out the circuit experiments, we confirm that the experimental results agree well with the theoretical predictions quantitatively. For example, the proposed controlled inverter can control the output voltage from 56% to 191% of the optimum one, which is designed for 1.8 W at 1.0 MHz, with maintaining over 90% power-conversion efficiency.