ES392833A2 - Electrical tool with electronic speed regulation - Google Patents

Electrical tool with electronic speed regulation

Info

Publication number
ES392833A2
ES392833A2 ES392833A ES392833A ES392833A2 ES 392833 A2 ES392833 A2 ES 392833A2 ES 392833 A ES392833 A ES 392833A ES 392833 A ES392833 A ES 392833A ES 392833 A2 ES392833 A2 ES 392833A2
Authority
ES
Spain
Prior art keywords
electronic speed
motor
revolutions
thyristors
speed regulation
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
ES392833A
Other languages
Spanish (es)
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of ES392833A2 publication Critical patent/ES392833A2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
    • H02P25/10—Commutator motors, e.g. repulsion motors
    • H02P25/14—Universal motors
    • H02P25/145—Universal motors whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value, speed feedback

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Ac Motors In General (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Control Of Electric Motors In General (AREA)
  • Control Of Direct Current Motors (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

Improvements introduced in the object of the main patent no. 367,344, filed on May 17, 1968, for: "Improvements in the construction of power tools" with a built-in alternating current collector motor and an electronic speed regulator device, characterized by the fact that the electronic speed regulating device contains two thyristors arranged in the main circuit of the motor, connected in parallel to each other in the opposite direction, a control device and a tachometric generator connected to the motor shaft, supplying the tachometric generator voltage pulses proportional to the number of revolutions to the command apparatus and the command apparatus influences the current flow angle of the thyristors, so that the number of revolutions remains approximately constant regardless of the load and regardless of variations in network voltage. (Machine-translation by Google Translate, not legally binding)
ES392833A 1970-07-03 1971-07-02 Electrical tool with electronic speed regulation Expired ES392833A2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702032940 DE2032940C3 (en) 1970-07-03 1970-07-03 Power tool with electromotive drive by an alternating current commutator motor

Publications (1)

Publication Number Publication Date
ES392833A2 true ES392833A2 (en) 1974-08-01

Family

ID=5775670

Family Applications (1)

Application Number Title Priority Date Filing Date
ES392833A Expired ES392833A2 (en) 1970-07-03 1971-07-02 Electrical tool with electronic speed regulation

Country Status (8)

Country Link
BR (1) BR7100577D0 (en)
DE (1) DE2032940C3 (en)
ES (1) ES392833A2 (en)
FR (1) FR2107022A6 (en)
GB (1) GB1356858A (en)
IT (1) IT986814B (en)
NL (1) NL7109176A (en)
SE (1) SE387790B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4317176A (en) * 1980-03-24 1982-02-23 Black & Decker Inc. Microcomputer controlled power tool
US9314900B2 (en) * 2013-10-18 2016-04-19 Black & Decker Inc. Handheld grinder with a brushless electric motor

Also Published As

Publication number Publication date
SE387790B (en) 1976-09-13
DE2032940A1 (en) 1972-01-05
BR7100577D0 (en) 1973-06-26
FR2107022A6 (en) 1972-05-05
GB1356858A (en) 1974-06-19
IT986814B (en) 1975-01-30
NL7109176A (en) 1972-01-05
DE2032940B2 (en) 1973-10-11
DE2032940C3 (en) 1974-05-02

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