Efficiency characteristics for changes in amplitude and power factor of diode-clamped linear amplifier unequally divided voltage power supply

被引：0
|
作者：
Haruna, Junnosuke [1 ]
Matano, Yusuke [1 ]
Funato, Hirohito [2 ,3 ]
机构：
[1] Utsunomiya Univ, Utsunomiya, Tochigi, Japan
[2] Utsunomiya Univ, Sch Engn, Utsunomiya, Tochigi, Japan
[3] Utsunomiya Univ, Grad Sch Reg Dev & Creat, Utsunomiya, Tochigi, Japan
来源：
ELECTRICAL ENGINEERING IN JAPAN | 2022年 / 215卷 / 03期
关键词：
class-B amplifier; DCLA; diode-clamped linear amplifier; unequally divided voltage power supply; REDUCTION;
D O I：
10.1002/eej.23389
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A diode-clamped linear amplifier (DCLA) is proposed to realize low electromagnetic interference (EMI) caused by switching operations. A new concept of the DCLA, namely the higher efficiency unequally divided voltage power supply DCLA (DCLA-UeDV), is proposed. In previous studies, the optimal voltage ratio was derived, and a 1.7% points improvement in efficiency was realized for a rated unity power factor load. However, it has not been examined whether the conversion efficiency can be improved, except during the rated operation. In this study, operation of the DCLA is analyzed for changes in the amplitude of the output voltage and load power factor. Then, the advantageous operating region of the DCLA-UeDV against DCLA-eDV is clarified.
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页数：9
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