Title:
PIEZOELECTRIC PORCELAIN TRANSFORMER AND DRIVING METHOD THEREFOR
Document Type and Number:
Japanese Patent JP2508575
Kind Code:
B2
Abstract:
PURPOSE: To obtain a small-sized, thin transformer element in which high voltage, high power, high reliability are simultaneously satisfied by disposing two drivers in which a piezoelectric porcelain layer polarized in a thickness direction and an internal electrode are alternately laminated on both ends, and disposing a generator element polarized in a length direction at a center containing a center of a length direction of a piezoelectric porcelain transformer.
CONSTITUTION: A piezoelectric porcelain layer 111 polarized in a thickness direction is disposed while sandwiching an internal electrode 112 in which polarizing directions are set in a zigzag manner in a driver, and the electrodes are connected to external electrodes 113, 114 (115, 116) on a surface at every other one. On the other hand, a piezoelectric porcelain 121 of a generator element is polarized in a length direction, and relatively thin internal electrodes 122 and surface external electrodes 124 are disposed at both sides, and further internal electrodes 123 and external electrodes 125 are disposed at a center in a length direction. Thus, a piezoelectric porcelain transformer having characteristics of high voltage, high power, high reliability, a small size and a reduced thickness is obtained.
Inventors:
OONISHI OSAMU
INOE TAKESHI
INOE TAKESHI
Application Number:
JP1218693A
Publication Date:
June 19, 1996
Filing Date:
January 28, 1993
Export Citation:
Assignee:
NIPPON ELECTRIC CO
International Classes:
H01L41/107; (IPC1-7): H01L41/107
Domestic Patent References:
| JP4338685A | ||||
| JP120555B2 |
Foreign References:
| US3562792A |
Attorney, Agent or Firm:
Naoki Kyomoto (2 outside)