JPS56140683A - Piezoelectric transformer - Google Patents

Piezoelectric transformer

Info

Publication number
JPS56140683A
JPS56140683A JP4431580A JP4431580A JPS56140683A JP S56140683 A JPS56140683 A JP S56140683A JP 4431580 A JP4431580 A JP 4431580A JP 4431580 A JP4431580 A JP 4431580A JP S56140683 A JPS56140683 A JP S56140683A
Authority
JP
Japan
Prior art keywords
vibrator
shape
effect
electrodes
utilizing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP4431580A
Other languages
Japanese (ja)
Other versions
JPS639673B2 (en
Inventor
Yoichi Miyasaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP4431580A priority Critical patent/JPS56140683A/en
Publication of JPS56140683A publication Critical patent/JPS56140683A/en
Publication of JPS639673B2 publication Critical patent/JPS639673B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/40—Piezoelectric or electrostrictive devices with electrical input and electrical output, e.g. functioning as transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Electric Clocks (AREA)

Abstract

PURPOSE:To make the transformer low frequency and small so as to enable EL elements for a wrist watch to be driven by a method wherein a transverse effect vibrator provided with a driving terminal and longitudinal effect vibrator provided with an output terminal are attached to a hard insulation substrate and boosted by utilizing a refraction mode. CONSTITUTION:Electrodes 34, 35 are fitted above and below a ceramic plate polarized in a direction of the thickness to be made the transverse effect low impedance vibrator 31, and electrodes 36, 37 are fitted at the ends on one side of a ceramic plate poralized in the longitudinal direction to be made the longitudinal effect high impedance vibrators 32. Those vibrators 31, 32 are attached on the both sides or the one side of the hard insulation substrate 33 and actuated by utilizing the refracting vibration mode, with the vibrator 32 as a driving means and the vibrator 33 as an electric generating means. The shape of the substrate 32 is allowed to be made a turning fork shape, a flat turning fork shape, an S-shape and the like, and the output can effectively be taken out because of no leakage of the electric field. Thereby, the small-sized piezoelectric transformer can be obtained which is large in a boosting ratio in the low frequency of several hundreds Hz-several tens kHz.
JP4431580A 1980-04-04 1980-04-04 Piezoelectric transformer Granted JPS56140683A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4431580A JPS56140683A (en) 1980-04-04 1980-04-04 Piezoelectric transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4431580A JPS56140683A (en) 1980-04-04 1980-04-04 Piezoelectric transformer

Publications (2)

Publication Number Publication Date
JPS56140683A true JPS56140683A (en) 1981-11-04
JPS639673B2 JPS639673B2 (en) 1988-03-01

Family

ID=12688047

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4431580A Granted JPS56140683A (en) 1980-04-04 1980-04-04 Piezoelectric transformer

Country Status (1)

Country Link
JP (1) JPS56140683A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6152162A (en) * 1984-08-21 1986-03-14 Canon Inc Power source
JPS6154685A (en) * 1984-08-27 1986-03-18 Canon Inc Power supply device
CN103258628A (en) * 2013-06-03 2013-08-21 苏州启智机电技术有限公司 Noise reduction system of power transformer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6152162A (en) * 1984-08-21 1986-03-14 Canon Inc Power source
JPS6154685A (en) * 1984-08-27 1986-03-18 Canon Inc Power supply device
CN103258628A (en) * 2013-06-03 2013-08-21 苏州启智机电技术有限公司 Noise reduction system of power transformer

Also Published As

Publication number Publication date
JPS639673B2 (en) 1988-03-01

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