FR2153196B1 - - Google Patents

Info

Publication number
FR2153196B1
FR2153196B1 FR7134403A FR7134403A FR2153196B1 FR 2153196 B1 FR2153196 B1 FR 2153196B1 FR 7134403 A FR7134403 A FR 7134403A FR 7134403 A FR7134403 A FR 7134403A FR 2153196 B1 FR2153196 B1 FR 2153196B1
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.)
Expired
Application number
FR7134403A
Other languages
French (fr)
Other versions
FR2153196A1 (en
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.)
Alcatel CIT SA
Nokia Inc
Original Assignee
Alcatel CIT SA
Nokia Inc
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 Alcatel CIT SA, Nokia Inc filed Critical Alcatel CIT SA
Priority to FR7134403A priority Critical patent/FR2153196A1/fr
Publication of FR2153196A1 publication Critical patent/FR2153196A1/fr
Application granted granted Critical
Publication of FR2153196B1 publication Critical patent/FR2153196B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of DC power input into DC power output
    • H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
    • H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
    • H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/125—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M3/135—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • H02M3/137—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
FR7134403A 1971-09-24 1971-09-24 Centrifugally cast metal pipes - with differential compsn obtd by applying additive-contg slag before metal solidification Granted FR2153196A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7134403A FR2153196A1 (en) 1971-09-24 1971-09-24 Centrifugally cast metal pipes - with differential compsn obtd by applying additive-contg slag before metal solidification

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7134403A FR2153196A1 (en) 1971-09-24 1971-09-24 Centrifugally cast metal pipes - with differential compsn obtd by applying additive-contg slag before metal solidification

Publications (2)

Publication Number Publication Date
FR2153196A1 FR2153196A1 (en) 1973-05-04
FR2153196B1 true FR2153196B1 (ca) 1974-05-31

Family

ID=9083430

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7134403A Granted FR2153196A1 (en) 1971-09-24 1971-09-24 Centrifugally cast metal pipes - with differential compsn obtd by applying additive-contg slag before metal solidification

Country Status (1)

Country Link
FR (1) FR2153196A1 (ca)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4683415A (en) * 1986-09-15 1987-07-28 Tektronix, Inc. Line frequency switching power supply

Also Published As

Publication number Publication date
FR2153196A1 (en) 1973-05-04

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse