GB1393076A - Series ac commutator motor with regulated speed - Google Patents

Series ac commutator motor with regulated speed

Info

Publication number
GB1393076A
GB1393076A GB1057073A GB1057073A GB1393076A GB 1393076 A GB1393076 A GB 1393076A GB 1057073 A GB1057073 A GB 1057073A GB 1057073 A GB1057073 A GB 1057073A GB 1393076 A GB1393076 A GB 1393076A
Authority
GB
United Kingdom
Prior art keywords
speed
motor
supply
diode
loads
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
GB1057073A
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.)
Malte Manson AB
Original Assignee
Malte Manson AB
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 Malte Manson AB filed Critical Malte Manson AB
Publication of GB1393076A publication Critical patent/GB1393076A/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

Abstract

1393076 Control of commutator motors MALTE MANSON AB 5 March 1973 [3 March 1972] 10570/73 Heading H2J A commutator motor has two field windings L1, L2 carried on respective poles, each of which has a second winding L3, L4 forming respective current transformers with the windings L1, L2, which transformers provide a firing signal, via rectifier Z4-7, resistors R1, R2, R3, capacitor C1 and diac Z3, to a controlled diode Z2 in antiparallel connection with an uncontrolled diode Z1, the arrangement being such that for a range of low motor loads the signal from the transformers is insufficient to break down the diac Z3 so that the motor receives alternate half cycles of an A.C. supply through the diode Z1, whereas for a range of high loads the diode Z2 is fired at each half cycle so that the motor receives the full wave A.C. supply. A speed/load characteristic such as that shown in Fig. 2b is thus produced, the characteristic having a first portion (for low loads) following the speed/load characteristic for half wave A.C. supply joined by a "knee" portion c to a second portion (for high loads) following the speed/load characteristic for full wave A.C. supply, the overall effect being to maintain the speed in a predetermined range over the range of motor loads. Diac Z3 may be replaced by a relay whose coil is connected across members R2, Cl, and whose contacts are in series between members Z4-7 and R3, Fig. 4 (not shown). A half wave rectifier may be used in place of rectifier Z4-7, Fig. 3 (not shown).
GB1057073A 1972-03-03 1973-03-05 Series ac commutator motor with regulated speed Expired GB1393076A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE273172 1972-03-03

Publications (1)

Publication Number Publication Date
GB1393076A true GB1393076A (en) 1975-05-07

Family

ID=20260553

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1057073A Expired GB1393076A (en) 1972-03-03 1973-03-05 Series ac commutator motor with regulated speed

Country Status (3)

Country Link
DE (1) DE2310835A1 (en)
FR (1) FR2174918A1 (en)
GB (1) GB1393076A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2126440A (en) * 1982-09-01 1984-03-21 Chang Ten Ho Electrical energy saving device for motors
GB2163017A (en) * 1984-08-06 1986-02-12 Ex Cell O Corp Dc motor control system

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2702142C3 (en) * 1977-01-20 1979-08-02 Robert Bosch Gmbh, 7000 Stuttgart Arrangement for controlling the speed of a universal motor
DE3214482C2 (en) * 1982-04-20 1988-10-20 Kress-elektrik GmbH & Co, Elektromotorenfabrik, 7457 Bisingen Method and circuit arrangement for controlling the speed of an electric motor
GB2123990B (en) * 1982-07-17 1985-11-27 Ferranti Plc Speed control of a universal electrical motor
DE69218603T2 (en) * 1992-10-28 1997-07-17 Yang Tai Her Circuit arrangement for limiting the speed of a series or compound electric motor of a universal type
ES2101811T3 (en) * 1992-10-28 1997-07-16 Yang Tai Her REGULATOR CIRCUIT FOR UNIVERSAL MOTOR IN SERIES (OR COMPOUND).
JP6154242B2 (en) 2013-08-07 2017-06-28 株式会社マキタ Electric machinery / equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2126440A (en) * 1982-09-01 1984-03-21 Chang Ten Ho Electrical energy saving device for motors
GB2163017A (en) * 1984-08-06 1986-02-12 Ex Cell O Corp Dc motor control system

Also Published As

Publication number Publication date
DE2310835A1 (en) 1973-09-06
FR2174918A1 (en) 1973-10-19

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees