GB1322517A - Piezoelectric ceramic transformers - Google Patents

Piezoelectric ceramic transformers

Info

Publication number
GB1322517A
GB1322517A GB4646270A GB4646270A GB1322517A GB 1322517 A GB1322517 A GB 1322517A GB 4646270 A GB4646270 A GB 4646270A GB 4646270 A GB4646270 A GB 4646270A GB 1322517 A GB1322517 A GB 1322517A
Authority
GB
United Kingdom
Prior art keywords
limits
curve
ratio
mode
higher harmonic
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.)
Expired
Application number
GB4646270A
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Publication of GB1322517A publication Critical patent/GB1322517A/en
Expired 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

Abstract

1322517 Piezoelectric transformers SUMITOMO ELECTRIC INDUSTRIES Ltd 30 Sept 1970 [1 Oct 1969 14 Nov 1969 (2)] 46462/70 Heading H3U A plate-type piezoelectric transformer having input electrodes EIN, E<SP>1</SP>IN and an output electrode EOUT is driven by a source OSC in longitudinal vibration either in the fundamental mode (curve a, Fig. 2) or the second higher harmonic mode (curve b, Fig. 2). To obtain the highest step-up voltage ratios the ratio of the width W to the half length L of the piezoelectric plate is held between certain limits, viz, for the fundamental mode the ratio W/L is within the limits 0À2 to 1À2 and for the second higher harmonic mode the limits are 0À05 to 0À85.
GB4646270A 1969-10-01 1970-09-30 Piezoelectric ceramic transformers Expired GB1322517A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP7885569 1969-10-01
JP10880969 1969-11-14
JP10880869 1969-11-14

Publications (1)

Publication Number Publication Date
GB1322517A true GB1322517A (en) 1973-07-04

Family

ID=27302829

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4646270A Expired GB1322517A (en) 1969-10-01 1970-09-30 Piezoelectric ceramic transformers

Country Status (2)

Country Link
US (1) US3659127A (en)
GB (1) GB1322517A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3736446A (en) * 1968-06-04 1973-05-29 Vernitron Corp Piezoelectric transformer
US5118982A (en) * 1989-05-31 1992-06-02 Nec Corporation Thickness mode vibration piezoelectric transformer
DE69305315T2 (en) * 1992-12-31 1997-03-06 Nec Corp Piezoelectric transformer with improved electrode arrangement
JP3189491B2 (en) * 1993-05-26 2001-07-16 ブラザー工業株式会社 Ink jet device
US5504384A (en) * 1993-06-23 1996-04-02 Industrial Technology Research Institute Multi-mode adjustable piezoelectric transformer
US5811913A (en) * 1995-06-22 1998-09-22 Nec Corporation Piezoelectric transformer having four-terminal structure

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2830274A (en) * 1954-01-04 1958-04-08 Gen Electric Electromechanical transducer
US3562792A (en) * 1968-06-04 1971-02-09 Clevite Corp Piezoelectric transformer

Also Published As

Publication number Publication date
US3659127A (en) 1972-04-25

Similar Documents

Publication Publication Date Title
GB932701A (en) Flexural oscillator of electrostrictive material
TW359903B (en) Piezoelectric transformer suitable for generating a high voltage
GB1322517A (en) Piezoelectric ceramic transformers
GB1159423A (en) Improvements in or relating to Electromechanical Delay Devices
JPS5479581A (en) Thickness-width slide crystal vibrator
FR2274162A1 (en) DC to DC converter - uses variable form-factor power drive to give stable multiple outputs
JPS567504A (en) Amplifier
JPS52125714A (en) Converter
JPS54107894A (en) Ozonizer
SU1182677A1 (en) Voltage-to-frequency converter
SU729785A1 (en) Self-sustained series inverter
JPS55132069A (en) Ccd driving gear
SU798764A1 (en) Pulsed converter-stabilizer
SU502485A1 (en) Parametron
SU1450089A1 (en) Sawtooth current generator
JPS5826271B2 (en) silent discharge device
SU388347A1 (en) PIEZOCERAMIC TRANSFILTER
SU440776A1 (en) Multichannel magnetic thyristor generator
JPH0362499U (en)
JPS53136927A (en) Pulse generator circuit
SU1700610A1 (en) Flash magnetization device
SU131789A1 (en) Regenerative frequency divider
SE8500192L (en) OUTPUT STEPS IN TONE FREQUENCY AMPLIFIER
SU1579568A1 (en) Source of power supply for electric precipitator with variable voltage
DE1951942B2 (en) Capacitive displacement transducer circuit - has linear characteristic over a relatively wide range of displacement input

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years