On the Technique of Resonant Transformerless Switching-mode Power Supplies

Liao Jiong-sheng; Wang Bei-li

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On the Technique of Resonant Transformerless Switching-mode Power Supplies

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- On the Technique of Resonant Transformerless Switching-mode Power Supplies
- Acta Electronica Sinica Issue 1, Pages: 77-83(1982)
- 作者机构：
  
  北京工程控制研究所
- 作者简介：
- 基金信息：
- DOI：
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- Published：1982
- 稿件说明：
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[1]廖炯生,王北离.无工频变压器的谐振式开关稳压电源的研究[J].电子学报,1982(01):77-83.

Liao Jiong-sheng, Wang Bei-li. On the Technique of Resonant Transformerless Switching-mode Power Supplies[J]. Acta Electronica Sinica, 1982, (1): 77-83.
[1]廖炯生,王北离.无工频变压器的谐振式开关稳压电源的研究[J].电子学报,1982(01):77-83. DOI：

Liao Jiong-sheng, Wang Bei-li. On the Technique of Resonant Transformerless Switching-mode Power Supplies[J]. Acta Electronica Sinica, 1982, (1): 77-83. DOI：

摘要

本文完整地分析了谐振式开关电源主回路工作的各个电性过程

阐明了它们的控制特点

指出采用纹波“提前”反馈技术可以解决控制的稳定性问题

揭示了开关管少数载流子存储效应在谐振回路中的表现形式及解决办法。实验线路获得了良好的技术指标。和同功率串联稳压电源相比

效率大为提高

体积重量大为减小。

Abstract

In the resonant transformerless switching-mode power supplies （TLSMPS）

the method of switchoff in the duration of zero current is applied. Consequently

as compared with chopper （PWM） type TLSMPS

it is possible to avoid the second breakdown

reduce the switching dissipation and radio frequency interference in the resonant TLSMPS.The operation of the power circuit of resonant TLSMPS is analyzed mathematically and the features of control are discussed in this paper. For solving the problem of stabilization in the control system of resonant TLSMPS

the technique of "forward" ripple feedback is proposed. Also

the existence of minor carrier storage effect in switching transistor of resonant loop is illustrated

and the impact of this effect is reduced.

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