DE3914312C2 - - Google Patents

Info

Publication number
DE3914312C2
DE3914312C2 DE19893914312 DE3914312A DE3914312C2 DE 3914312 C2 DE3914312 C2 DE 3914312C2 DE 19893914312 DE19893914312 DE 19893914312 DE 3914312 A DE3914312 A DE 3914312A DE 3914312 C2 DE3914312 C2 DE 3914312C2
Authority
DE
Germany
Prior art keywords
voltage
motor
current flow
current
flow angle
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 - Lifetime
Application number
DE19893914312
Other languages
German (de)
English (en)
Other versions
DE3914312A1 (de
Inventor
Karl-Diether Dipl.-Ing. 7101 Oedheim De Nutz
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.)
Conti Temic Microelectronic GmbH
Original Assignee
Telefunken Electronic GmbH
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 Telefunken Electronic GmbH filed Critical Telefunken Electronic GmbH
Priority to DE19893914312 priority Critical patent/DE3914312A1/de
Publication of DE3914312A1 publication Critical patent/DE3914312A1/de
Application granted granted Critical
Publication of DE3914312C2 publication Critical patent/DE3914312C2/de
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/0833—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors for electric motors with control arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Protection Of Generators And Motors (AREA)
  • Motor And Converter Starters (AREA)
  • Control Of Electric Motors In General (AREA)
DE19893914312 1989-04-29 1989-04-29 Schaltung zum erkennen der ueberbelastung eines motors Granted DE3914312A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19893914312 DE3914312A1 (de) 1989-04-29 1989-04-29 Schaltung zum erkennen der ueberbelastung eines motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19893914312 DE3914312A1 (de) 1989-04-29 1989-04-29 Schaltung zum erkennen der ueberbelastung eines motors

Publications (2)

Publication Number Publication Date
DE3914312A1 DE3914312A1 (de) 1990-10-31
DE3914312C2 true DE3914312C2 (fr) 1992-03-12

Family

ID=6379821

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19893914312 Granted DE3914312A1 (de) 1989-04-29 1989-04-29 Schaltung zum erkennen der ueberbelastung eines motors

Country Status (1)

Country Link
DE (1) DE3914312A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29701358U1 (de) * 1997-01-29 1997-04-17 Laessig Lothar Elektrowerkzeugmaschine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4109867C2 (de) * 1991-03-26 1996-05-30 Bosch Gmbh Robert Schutzeinrichtung für Elektromotoren

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3400768A (en) * 1966-06-16 1968-09-10 Westinghouse Air Brake Co Cutting machine load monitor control
US4307325A (en) * 1980-01-28 1981-12-22 Black & Decker Inc. Digital control system for electric motors in power tools and the like
DE3121779C2 (de) * 1981-05-25 1984-02-02 Mannesmann AG, 4000 Düsseldorf Verfahren zur Überwachung des Effektivstroms bei Gleichstrommaschinen zur Verhinderung einer Überlast und elektronische Überlastsicherung zur Durchführung des Verfahrens
DE3125157A1 (de) * 1981-06-26 1983-01-13 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Drehzahlregelschaltung fuer einen motor
DE3128410A1 (de) * 1981-07-17 1983-02-03 Hilti AG, 9494 Schaan Bewertungsschaltung fuer ein elektrisches drehmomentsignal an einer bohrmaschine
DE3215734A1 (de) * 1982-04-28 1983-11-03 Black & Decker, Inc. (eine Gesellschaft n.d.Ges.d. Staates Delaware), 19711 Newark, Del. Schaltungsanordnung zur drehmomentbegrenzung von universalmotoren
DE3311771A1 (de) * 1983-03-31 1984-10-04 Vorwerk & Co Interholding Gmbh, 5600 Wuppertal Ueberwachungsschaltung fuer elektromotoren
DE3422485A1 (de) * 1984-06-16 1985-12-19 Bsg Schalttechnik Gmbh & Co Kg, 7460 Balingen Verfahren und vorrichtung zur strombegrenzung eines elektromotors
DE3440920A1 (de) * 1984-11-09 1986-05-15 C. & E. Fein Gmbh & Co, 7000 Stuttgart Einrichtung zur drehzahlregelung
DE3501947A1 (de) * 1985-01-22 1986-07-24 Apag Elektronik AG, Dübendorf, Zürich Elektrowerkzeug, insbesondere winkelschleifer
DE3709983A1 (de) * 1987-03-26 1988-10-13 Festo Kg Stromversorgungseinrichtung fuer elektrowerkzeuge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29701358U1 (de) * 1997-01-29 1997-04-17 Laessig Lothar Elektrowerkzeugmaschine

Also Published As

Publication number Publication date
DE3914312A1 (de) 1990-10-31

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: TEMIC TELEFUNKEN MICROELECTRONIC GMBH, 7100 HEILBR

8320 Willingness to grant licenses declared (paragraph 23)
8339 Ceased/non-payment of the annual fee