... low-power factor 小功率因数 low-power factor circuit 小功率因数电路 low power factor wattmeter 低功率因素瓦特表 ; 低功率身分瓦特表 ...
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实验结果表明该电路方案简单、成本低、输入功率因数高，适用于中小功率，具有良好的应用前景。
The experiment results show its simplicity and low cost as well as good prospects of application.
提出了一种适用于小功率逆变电源的新型功率因数校正电路拓扑方案，分析了其基本工作原理及参数设计要求。
A novel power-factor corrector topology applicable to the small welding power inverter is proposed. The basic operation principles and design rules are presented in detail.
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