- 专利标题： Piezoelectric transformer, piezoelectric transformer drive circuit, piezoelectric transformer drive method and cold cathode tube drive apparatus using piezoelectric transformer
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申请号： US09852621申请日： 2001-05-11
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公开(公告)号： US06737816B2公开(公告)日： 2004-05-18
- 发明人: Hiroshi Nakatsuka , Katsunori Moritoki , Toshiyuki Asahi , Kojiro Okuyama , Osamu Kawasaki
- 申请人： Hiroshi Nakatsuka , Katsunori Moritoki , Toshiyuki Asahi , Kojiro Okuyama , Osamu Kawasaki
- 优先权： JP11-160074 19990607; JP11-205160 19990719; JP2000-004981 20000113
- 主分类号： G05F100
- IPC分类号： G05F100
摘要：
The piezoelectric transformer of the present invention has a piezoelectric element 109 mainly formed of a piezoelectric material, primary electrodes 101U and 101D which are formed on the piezoelectric element 109 and to which a voltage is applied, a secondary electrode 102 which is formed on the piezoelectric element 109 and from which a voltage higher than the voltage applied to the primary electrode is output, and a sensor electrode 103 which is formed on the piezoelectric element 109 and from which a voltage lower than the output voltage of the secondary electrode is output.
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