Title:
圧電トランス駆動装置、冷陰極管インバータ、冷陰極管駆動装置及び画像形成装置
Document Type and Number:
Japanese Patent JP5380085
Kind Code:
B2
Abstract:
A piezoelectric transformer driving device including: an oscillator; a frequency-divider outputting a pulse by dividing a clock signal from the oscillator by a frequency-divide ratio received thereto; a switching element driven by the pulse and intermittently applying a voltage to a primary side of a piezoelectric transformer; a frequency-divide ratio instructing unit holding a frequency-divide ratio instruction value of a real number having an integer part and an fractional part; a binarization unit binarizing the frequency-divide ratio instruction value into two different integer frequency-divide ratios and selectively outputting the frequency-divide ratios. The binarization unit adjusts an appearance ratio of the frequency-divide ratios such that an average of the frequency-divide ratios output from the binarization unit is equal to an average of the frequency-divide ratio instruction value.
Inventors:
Small sake
Yao Masao
Aki Hagiwara
Yao Masao
Aki Hagiwara
Application Number:
JP2009016766A
Publication Date:
January 08, 2014
Filing Date:
January 28, 2009
Export Citation:
Assignee:
Oki Data Co., Ltd.
International Classes:
H02M3/24; G03G21/00; H05B41/24
Domestic Patent References:
| JP2000139081A | ||||
| JP200691757A | ||||
| JP2000133485A | ||||
| JP2006340413A | ||||
| JP2003255756A | ||||
| JP2007124886A | ||||
| JP10327586A | ||||
| JP200263996A | ||||
| JP200264977A | ||||
| JP2001275343A |
Attorney, Agent or Firm:
Kakimoto Yasunari
Aniya Setsuo
Fukuoka Masahiro
Aniya Setsuo
Fukuoka Masahiro