GB1241221A - Piezoelectric transformer - Google Patents

Piezoelectric transformer

Info

Publication number
GB1241221A
GB1241221A GB31999/68A GB3199968A GB1241221A GB 1241221 A GB1241221 A GB 1241221A GB 31999/68 A GB31999/68 A GB 31999/68A GB 3199968 A GB3199968 A GB 3199968A GB 1241221 A GB1241221 A GB 1241221A
Authority
GB
United Kingdom
Prior art keywords
substituted
pbo
piezoelectric transformer
zro
tio
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
GB31999/68A
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.)
Clevite Corp
Original Assignee
Clevite Corp
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 Clevite Corp filed Critical Clevite Corp
Publication of GB1241221A publication Critical patent/GB1241221A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • H03B5/323—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator the resonator having more than two terminals
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/46—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/48—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/50—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on rare-earth compounds
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/51—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on compounds of actinides
    • 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
    • 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
    • H10N30/80—Constructional details
    • H10N30/802—Circuitry or processes for operating piezoelectric or electrostrictive devices not otherwise provided for, e.g. drive circuits
    • H10N30/804—Circuitry or processes for operating piezoelectric or electrostrictive devices not otherwise provided for, e.g. drive circuits for piezoelectric transformers
    • 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
    • H10N30/80—Constructional details
    • H10N30/85—Piezoelectric or electrostrictive active materials
    • H10N30/853—Ceramic compositions
    • H10N30/8548—Lead-based oxides
    • H10N30/8554—Lead-zirconium titanate [PZT] based

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Composite Materials (AREA)
  • Dc-Dc Converters (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

1,241,221. Piezoelectric transformers. CLEVITE CORP. 4 July, 1968 [7 July, 1967; 4 June, 1968], No. 31999/68. Heading H3U. [Also in Division H2] The ceramic body of the piezoelectric transformer disclosed in Specification 1,241,222 has the composition PbO (ZrO 2 ) 1-x (TiO 2 ) x wherein a portion of the lead is substituted by one or more alkaline earth metals, x is a number between 0 and 1, and either (1) a further portion of the PbO is substituted by an alkali metal oxide or (2) a portion of the TiO 2 and/or ZrO 2 is substituted by iron, nickel, cobalt or scandium oxide. The further portion (1) of the PbO may be substituted by K 2 O. The alkaline earth metal may be barium, strontium and/or calcium. A preferred composition is:
GB31999/68A 1967-07-07 1968-07-04 Piezoelectric transformer Expired GB1241221A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US65187567A 1967-07-07 1967-07-07
US73441668A 1968-06-04 1968-06-04

Publications (1)

Publication Number Publication Date
GB1241221A true GB1241221A (en) 1971-08-04

Family

ID=27096170

Family Applications (2)

Application Number Title Priority Date Filing Date
GB27333/69A Expired GB1241222A (en) 1967-07-07 1968-07-04 Piezoelectric oscillator
GB31999/68A Expired GB1241221A (en) 1967-07-07 1968-07-04 Piezoelectric transformer

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB27333/69A Expired GB1241222A (en) 1967-07-07 1968-07-04 Piezoelectric oscillator

Country Status (2)

Country Link
FR (1) FR1584011A (en)
GB (2) GB1241222A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5090445A (en) * 1991-02-19 1992-02-25 Jackson Bert W Air actuated damper
WO2020242839A1 (en) * 2019-05-24 2020-12-03 Facebook Technologies, Llc Transparent oriented electroactive ceramics
WO2021034505A1 (en) * 2019-08-20 2021-02-25 Facebook Technologies, Llc Transparent phase change actuator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5090445A (en) * 1991-02-19 1992-02-25 Jackson Bert W Air actuated damper
WO2020242839A1 (en) * 2019-05-24 2020-12-03 Facebook Technologies, Llc Transparent oriented electroactive ceramics
CN113892052A (en) * 2019-05-24 2022-01-04 脸谱科技有限责任公司 Transparent oriented electroactive ceramics
WO2021034505A1 (en) * 2019-08-20 2021-02-25 Facebook Technologies, Llc Transparent phase change actuator
US11428964B2 (en) 2019-08-20 2022-08-30 Meta Platforms Technologies, Llc Transparent phase change actuator

Also Published As

Publication number Publication date
FR1584011A (en) 1969-12-12
GB1241222A (en) 1971-08-04

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