GB1425490A - Electronic speed governors for electric tools - Google Patents

Electronic speed governors for electric tools

Info

Publication number
GB1425490A
GB1425490A GB2851773A GB2851773A GB1425490A GB 1425490 A GB1425490 A GB 1425490A GB 2851773 A GB2851773 A GB 2851773A GB 2851773 A GB2851773 A GB 2851773A GB 1425490 A GB1425490 A GB 1425490A
Authority
GB
United Kingdom
Prior art keywords
motor
load
triac
firing
capacitor
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
GB2851773A
Other languages
English (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.)
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 GB1425490A publication Critical patent/GB1425490A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Ac Motors In General (AREA)
  • Control Of Direct Current Motors (AREA)
GB2851773A 1972-06-19 1973-06-15 Electronic speed governors for electric tools Expired GB1425490A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2229694A DE2229694A1 (de) 1972-06-19 1972-06-19 Drehzahlregler fuer ein elektrowerkzeug

Publications (1)

Publication Number Publication Date
GB1425490A true GB1425490A (en) 1976-02-18

Family

ID=5848059

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2851773A Expired GB1425490A (en) 1972-06-19 1973-06-15 Electronic speed governors for electric tools

Country Status (8)

Country Link
US (1) US3848168A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS5628476B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH555621A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2229694A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ES (1) ES416025A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2163218A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1425490A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IT (1) IT989263B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2198602A (en) * 1986-10-27 1988-06-15 Yoshida Kogyo Kk Controlling torque of a door opening and closing motor for an automatic door

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4069446A (en) * 1974-11-30 1978-01-17 Sanwa Chemical Co., Ltd. Speed control means for AC motor
DE2724815C2 (de) * 1977-06-02 1981-10-08 Robert Bosch Gmbh, 7000 Stuttgart Schaltung zur Steuerung und Stabilisierung der Drehzahl eines Universalmotors
US4346308A (en) * 1978-12-11 1982-08-24 Hewlett-Packard Company DC Switching circuit with current through resistive load below holding current of triac strings to charge capacitive load to predetermined potentials
US4414500A (en) * 1982-02-01 1983-11-08 Allied Corporation Variable motor speed control
US4638226A (en) * 1985-02-07 1987-01-20 Eaton Corporation Speed control system with feedback and soft-start
US4734629A (en) * 1985-08-09 1988-03-29 Black & Decker Inc. Variable speed trigger switch
US9559628B2 (en) 2013-10-25 2017-01-31 Black & Decker Inc. Handheld power tool with compact AC switch

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3588647A (en) * 1968-04-01 1971-06-28 Electronic Controls Corp Ac power control circuits for reactive power loads

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2198602A (en) * 1986-10-27 1988-06-15 Yoshida Kogyo Kk Controlling torque of a door opening and closing motor for an automatic door
US4959598A (en) * 1986-10-27 1990-09-25 Yoshida Kogyo K.K. Method and apparatus for controlling torque of a door opening and closing motor for an automatic door
GB2198602B (en) * 1986-10-27 1990-11-14 Yoshida Kogyo Kk Method and apparatus for controlling torque of a door opening and closing motor for an automatic door

Also Published As

Publication number Publication date
JPS4962919A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-06-18
IT989263B (it) 1975-05-20
ES416025A1 (es) 1976-02-16
US3848168A (en) 1974-11-12
JPS5628476B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1981-07-02
CH555621A (de) 1974-10-31
FR2163218A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1973-07-20
DE2229694A1 (de) 1974-01-17

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee