FR944898A - Improvements to DC amplifiers - Google Patents

Improvements to DC amplifiers

Info

Publication number
FR944898A
FR944898A FR944898DA FR944898A FR 944898 A FR944898 A FR 944898A FR 944898D A FR944898D A FR 944898DA FR 944898 A FR944898 A FR 944898A
Authority
FR
France
Prior art keywords
amplifiers
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
Other languages
French (fr)
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.)
CGG SA
Original Assignee
Compagnie Generale de Geophysique SA
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 Compagnie Generale de Geophysique SA filed Critical Compagnie Generale de Geophysique SA
Application granted granted Critical
Publication of FR944898A publication Critical patent/FR944898A/en
Expired 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
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/34—Conversion of dc power input into dc power output with intermediate conversion into ac by dynamic converters
    • H02M3/38—Conversion of dc power input into dc power output with intermediate conversion into ac by dynamic converters using mechanical contact-making and -breaking parts to interrupt a single potential
    • H02M3/42—Conversion of dc power input into dc power output with intermediate conversion into ac by dynamic converters using mechanical contact-making and -breaking parts to interrupt a single potential with electromagnetically-operated vibrating contacts, e.g. chopper

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
FR944898D 1947-03-29 1947-03-29 Improvements to DC amplifiers Expired FR944898A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR944898T 1947-03-29

Publications (1)

Publication Number Publication Date
FR944898A true FR944898A (en) 1949-04-19

Family

ID=9472027

Family Applications (1)

Application Number Title Priority Date Filing Date
FR944898D Expired FR944898A (en) 1947-03-29 1947-03-29 Improvements to DC amplifiers

Country Status (1)

Country Link
FR (1) FR944898A (en)

Similar Documents

Publication Publication Date Title
FR966204A (en) Improvements to connections
FR974656A (en) Improvements relating to substituted piperazines
FR60497E (en) Improvements to electric cables
FR951988A (en) DC amplifying devices
FR66671E (en) Electric feedback amplifiers
FR965955A (en) Improvements to DC electronic amplifiers
FR943162A (en) Improvements to electric cables
FR948281A (en) Toaster improvements
FR944898A (en) Improvements to DC amplifiers
FR945700A (en) Bearing improvement
FR1004182A (en) Improvements to firedogs
FR944751A (en) Improvements to grinder-homogenizers
FR989254A (en) Improvements to electronic amplifiers
FR941284A (en) Feedback amplifier
FR967431A (en) Improvements to turbo-reactors
FR949960A (en) Improvements to blowers
FR56737E (en) Hive improvements
FR58578E (en) Improvements to negative feedback electrical amplifiers
FR58455E (en) Improvements to negative feedback electrical amplifiers
FR975396A (en) Improvements to sliding formwork
FR922795A (en) DC dynamo
FR1005920A (en) Improvements to feedback amplifiers
FR935612A (en) Letter-Envelope Improvements
FR1046005A (en) DC amplifying dynamo
FR57518E (en) Improvements to stretchers