GB1146977A - Circuit arrangement for controlling the speed of a d.c. commutator motor - Google Patents

Circuit arrangement for controlling the speed of a d.c. commutator motor

Info

Publication number
GB1146977A
GB1146977A GB20969/65A GB2096965A GB1146977A GB 1146977 A GB1146977 A GB 1146977A GB 20969/65 A GB20969/65 A GB 20969/65A GB 2096965 A GB2096965 A GB 2096965A GB 1146977 A GB1146977 A GB 1146977A
Authority
GB
United Kingdom
Prior art keywords
capacitor
transistor
motor
circuit
charging rate
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
GB20969/65A
Inventor
John MERRETT
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.)
Philips Components Ltd
Original Assignee
Mullard Ltd
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 Mullard Ltd filed Critical Mullard Ltd
Priority to GB20969/65A priority Critical patent/GB1146977A/en
Publication of GB1146977A publication Critical patent/GB1146977A/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
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
    • H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
    • H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
    • H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
    • H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
    • H02P7/288—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using variable impedance
    • 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
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
    • H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
    • H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
    • H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
    • H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
    • H02P7/29—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using pulse modulation
    • 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
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
    • H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
    • H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
    • H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
    • H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
    • H02P7/292—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using static converters, e.g. AC to DC
    • H02P7/293—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using static converters, e.g. AC to DC using phase control

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

1,146,977. Switching circuits. MULLARD Ltd. 28 March, 1966 [18 May, 1965], No. 20969/65. Heading H3T. [Also in Divisions G3 and H2] A motor 11, 12, e.g. in an automatic washing machine, is energized from a full wave rectifier via a thyristor 24 which is triggered by the discharge of a capacitor 38 through a transistor 36 at a firing angle determined by the charging rate of the capacitor which is varied in steps by switched resistors 62, 63, 64 to provide, e.g. three speeds. The transistor collector and base are transformer coupled to provide a regenerative circuit and the triggering pulse is developed in an additional winding 35 on this transformer. The charging circuit supply is stabilized by a Zener diode 51, and the resistor corresponding to top speed 64 is a thermistor to limit the acceleration when this is selected. At the two lower speeds the charging rate of the capacitor is modified by the back e.m.f. of the motor in a diode/resistor circuit 4 so as to keep the selected speed constant. The charging rate is also modified by a current limiting circuit; this comprises a transistor 71 in series with the capacitor and normally fully conducting, but if the motor current becomes excessive the transistor is biased to become progressively less conductive.
GB20969/65A 1965-05-18 1965-05-18 Circuit arrangement for controlling the speed of a d.c. commutator motor Expired GB1146977A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB20969/65A GB1146977A (en) 1965-05-18 1965-05-18 Circuit arrangement for controlling the speed of a d.c. commutator motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB20969/65A GB1146977A (en) 1965-05-18 1965-05-18 Circuit arrangement for controlling the speed of a d.c. commutator motor

Publications (1)

Publication Number Publication Date
GB1146977A true GB1146977A (en) 1969-03-26

Family

ID=10154923

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20969/65A Expired GB1146977A (en) 1965-05-18 1965-05-18 Circuit arrangement for controlling the speed of a d.c. commutator motor

Country Status (1)

Country Link
GB (1) GB1146977A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2417136A1 (en) * 1978-02-14 1979-09-07 Sortimat Creuz & Co Gmbh Electronic pulse generator for switch control - provides stepless regulation for vibratory drive unit for spiral bowl feeder
FR2468527A1 (en) * 1979-10-30 1981-05-08 Dixon Automatic Tool POWER CONTROL DEVICE FOR TRANSMITTING ENERGY FROM AN ALTERNATING CURRENT SOURCE TO A VIBRANT DISPENSER, AND ASSEMBLY COMPRISING SUCH DEVICE AND DISPENSER
GB2162387A (en) * 1984-05-22 1986-01-29 Mabuchi Motor Co Speed control

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2417136A1 (en) * 1978-02-14 1979-09-07 Sortimat Creuz & Co Gmbh Electronic pulse generator for switch control - provides stepless regulation for vibratory drive unit for spiral bowl feeder
FR2468527A1 (en) * 1979-10-30 1981-05-08 Dixon Automatic Tool POWER CONTROL DEVICE FOR TRANSMITTING ENERGY FROM AN ALTERNATING CURRENT SOURCE TO A VIBRANT DISPENSER, AND ASSEMBLY COMPRISING SUCH DEVICE AND DISPENSER
GB2162387A (en) * 1984-05-22 1986-01-29 Mabuchi Motor Co Speed control

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