文档介绍：压电变压器直流高压电源设计
摘要
压电陶瓷变压器是一种新型的压电换能器件,具有尺寸小,结构简单,不可燃,耐辐射,高可靠等优点。压电变压器在电视显像管、雷达显示管、静电复印机、静电除尘、小功率激光管、离子发生器、高压极化等设备中得到广泛的应用。
本课题是研究压电变压器设计出10kV的直流高压电源。当在压电陶瓷变压器输入端(驱动部份)加入交变电压时,通过逆压电效应,瓷片产生沿长度方向的伸缩振动,将输入电能转变为机械能;而发电部分则通过正压电效应将机械能转换为电能从而输出电压因瓷片的长度远大于厚度,故输出端阻抗远大于输入端阻抗,,可以获得几千伏以上的高压输出.
关键词: 压电陶瓷变压器直流高压阻抗
Design of Piezoelectric Transformer DC high voltage power supply
ABSTRACT
Piezoelectric ceramic transformer is a new type of piezoelectric transducer device, the size is small, simple structure, bustible, resistance to radiation, high reliability. Piezoelectric Transformers in a television picture tube, radar showed tube, electrostatic copier, electrostatic dust, small power laser diodes, ion generator, high voltage polarization, and other equipment was widely used.
The topic is the study piezoelectric transformer design of the 10 kV DC high voltage power supply. When the piezoelectric ceramic transformer input (some drivers) by adding alternating voltage, reverse piezoelectric effect. have artifacts along the length direction of the stretching vibration, the input energy into mechanical energy; and some power is through piezoelectric effect of converting mechanical energy to electrical energy so the output voltage for artifacts than the length of thickness, Therefore, the output impedance than input impedance, the output voltage than input voltage. General Fu few to a few tens of volts of alternating voltage, available thousands of volts above the high pressure output.
Keywords: Piezoelectric Ceramic Transformer DC high voltage
Impedance
目录
第一章综述 1
1
2
压电变压器的应用 5
7
第二章压电陶瓷变压器的工作原理和基本特性 9
压电陶瓷变压器的结构和工作原理 9
11
12
第三章压电陶瓷变压器高压电源设计 18
18
19
21
22
26
第四章压电陶瓷变压器高压电源性能测试 28
第五章结论 30
致谢 31
参考文献 32
第一章综述
压电变压器是 20世纪 50年代后期开始研制的一种新型压电器件, 1956年