Effects of electrode layouts on electrical characteristics for unipoled step-down piezoelectric transformers

摘要：

The electrical characteristics of single layer unipoled step-down piezoelectric transformers are investigated. The configuration of PT is circle-circle, where the inner circle is input and outer ring is output. The electrical characteristics simulation and performance test are focused on voltage gains and output power. Moreover, effects of input and output electrode area on voltage gains and output power are discussed. It was shown that a good voltage step-down effect accompanied with not ideal output power is obtained from small input/output area ratio. The step-down ratio of 0.12 with an efficiency of 93% is obtained at RL=20 Ω in the PT with input inner diameter of 7mm, gap of 1mm and disc diameter of 30 mm.

作者: BAI Feng-xian DONG Wei-jie XU Yong-jie

作者单位: School of Electronic and Information Engineering,Dalian University of Technology,Dalian 116023,China

会议类型: 国际会议

会议名称: 2009 The 18th IEEE International Symposium on Applications of Ferroelectrics(2009年国际铁电学暨IEEE国际铁电应用联合会议)

会议地点: 西安

会议语种:英文

页码: 362-366

在线出版日期: 2009-08-23（万方平台首次上网日期，不代表论文的发表时间）