FR2207340A1 - - Google Patents

Info

Publication number
FR2207340A1
FR2207340A1 FR7340721A FR7340721A FR2207340A1 FR 2207340 A1 FR2207340 A1 FR 2207340A1 FR 7340721 A FR7340721 A FR 7340721A FR 7340721 A FR7340721 A FR 7340721A FR 2207340 A1 FR2207340 A1 FR 2207340A1
Authority
FR
France
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
FR7340721A
Other languages
French (fr)
Other versions
FR2207340B1 (enrdf_load_stackoverflow
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of FR2207340A1 publication Critical patent/FR2207340A1/fr
Application granted granted Critical
Publication of FR2207340B1 publication Critical patent/FR2207340B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/08—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators
    • H01F29/12—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators having movable coil, winding, or part thereof; having movable shield
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F19/00—Fixed transformers or mutual inductances of the signal type
    • H01F19/02—Audio-frequency transformers or mutual inductances, i.e. not suitable for handling frequencies considerably beyond the audio range
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/08—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators
    • H01F29/10—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators having movable part of magnetic circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/38—Impedance-matching networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Inverter Devices (AREA)
FR7340721A 1972-11-17 1973-11-15 Expired FR2207340B1 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11466672A JPS49133017A (enrdf_load_stackoverflow) 1972-11-17 1972-11-17

Publications (2)

Publication Number Publication Date
FR2207340A1 true FR2207340A1 (enrdf_load_stackoverflow) 1974-06-14
FR2207340B1 FR2207340B1 (enrdf_load_stackoverflow) 1977-06-03

Family

ID=14643532

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7340721A Expired FR2207340B1 (enrdf_load_stackoverflow) 1972-11-17 1973-11-15

Country Status (3)

Country Link
JP (1) JPS49133017A (enrdf_load_stackoverflow)
DE (1) DE2357154A1 (enrdf_load_stackoverflow)
FR (1) FR2207340B1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9344053B2 (en) 2012-07-16 2016-05-17 Herrmann Ultraschalltechnik Gmbh & Co. Kg Output stage for adapting an AC voltage signal of an ultrasound generator

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56102198A (en) * 1980-01-19 1981-08-15 Toray Ind Inc Ultrasonic wave transducer
JPS58119297U (ja) * 1982-02-04 1983-08-13 東レ株式会社 高分子圧電膜を用いた超音波トランスデユ−サ−
JPS58119298U (ja) * 1982-02-04 1983-08-13 東レ株式会社 高分子圧電膜を用いた超音波トランスデユ−サ−
JPS58119299U (ja) * 1982-02-04 1983-08-13 東レ株式会社 高分子圧電膜を用いた超音波トランスデユ−サ−
JPH0815398B2 (ja) * 1985-06-26 1996-02-14 松下電器産業株式会社 超音波モータ駆動装置
JPH0243892A (ja) * 1988-08-03 1990-02-14 Ito Chiyoutanpa Kk 電力供給装置
DE3925359C1 (enrdf_load_stackoverflow) * 1989-07-31 1991-02-07 Degussa Ag, 6000 Frankfurt, De

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1083814A (fr) * 1953-09-18 1955-01-12 Méthode d'adaptation d'impédances

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1083814A (fr) * 1953-09-18 1955-01-12 Méthode d'adaptation d'impédances

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9344053B2 (en) 2012-07-16 2016-05-17 Herrmann Ultraschalltechnik Gmbh & Co. Kg Output stage for adapting an AC voltage signal of an ultrasound generator

Also Published As

Publication number Publication date
JPS49133017A (enrdf_load_stackoverflow) 1974-12-20
DE2357154A1 (de) 1974-05-22
FR2207340B1 (enrdf_load_stackoverflow) 1977-06-03

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Legal Events

Date Code Title Description
ST Notification of lapse