摘要
压电变压器是一种非常有前途的固态电子器件 ,同传统的电磁变压器相比具有器件结构简单、体积小、效率高、无电磁噪声、无电磁式绕组及不可燃烧 ,安全性高等特点 ,而且在大规模生产下的成本可以大幅降低 .本文采用等效电路模型对该器件的升压比 (增益 )、输出功率、功率传输效率进行了理论分析和计算 ,并用实验手段对其加以验证 .利用压电变压器制作的CCFL驱动器和DC DC变换器的电路也在文中给出 .
Piezoelectric transformer is a kind of very promising solid electronic component which has the following several merits compared with the traditional magnetic transformers:it has very simple structure,small volume,high efficiency,no magnetic noise,no windings so uninflammable,high safety,and low cost under mass production.In this paper,the properties of piezoelectric transformer such as the step-up ratio of voltage,output power,efficiency,etc.are analyzed and calculated through equivalent circuit model.The accuracy of the model is verified by experiment.Two applications circuits:CCFL driver and DC-DC converter using piezoelectric transformer are given.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2001年第11期1549-1551,共3页
Acta Electronica Sinica
基金
国家自然科学基金 (No .598770 2 3)
