JPS57145588A - Speed change control device for small-sized dc motor - Google Patents

Speed change control device for small-sized dc motor

Info

Publication number
JPS57145588A
JPS57145588A JP56028744A JP2874481A JPS57145588A JP S57145588 A JPS57145588 A JP S57145588A JP 56028744 A JP56028744 A JP 56028744A JP 2874481 A JP2874481 A JP 2874481A JP S57145588 A JPS57145588 A JP S57145588A
Authority
JP
Japan
Prior art keywords
motor
control device
speed change
circuit
bridge
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.)
Pending
Application number
JP56028744A
Other languages
Japanese (ja)
Inventor
Kazuo Noguchi
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.)
Tokyo Sanyo Electric Co Ltd
Tokyo Parts Ind Co Ltd
Original Assignee
Tokyo Sanyo Electric Co Ltd
Tokyo Parts Ind Co 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 Tokyo Sanyo Electric Co Ltd, Tokyo Parts Ind Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP56028744A priority Critical patent/JPS57145588A/en
Publication of JPS57145588A publication Critical patent/JPS57145588A/en
Pending 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
    • H02P7/2855—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 whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value

Abstract

PURPOSE:To offer a two-speed change-over control device having no deterioration in torque characteristic by a switch of one circuit. CONSTITUTION:A bridge circuit is composed of resistors 2, 3, 4 and a DC motor 1. And a transistor 6, a power supply control transistor 9 are controlled by the differential voltage between the voltage across bridge detection terminals a, b and the forward voltage of a reference voltage generating diode 5. The common terminal of a change-over switch S is connected to a bridge detection terminal (a) and X for high speed to the cathode of the diode 5 through a resistor 15 and Y for low speed to the other terminal connected to the DC motor 1 at the bridge side. In this composition, torque characteristic will not be deteriorated by a switch of one circuit and two speeds can be obtained.
JP56028744A 1981-02-28 1981-02-28 Speed change control device for small-sized dc motor Pending JPS57145588A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56028744A JPS57145588A (en) 1981-02-28 1981-02-28 Speed change control device for small-sized dc motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56028744A JPS57145588A (en) 1981-02-28 1981-02-28 Speed change control device for small-sized dc motor

Publications (1)

Publication Number Publication Date
JPS57145588A true JPS57145588A (en) 1982-09-08

Family

ID=12256925

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56028744A Pending JPS57145588A (en) 1981-02-28 1981-02-28 Speed change control device for small-sized dc motor

Country Status (1)

Country Link
JP (1) JPS57145588A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4641068A (en) * 1984-08-15 1987-02-03 Pioneer Electronic Corporation DC motor driving device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4641068A (en) * 1984-08-15 1987-02-03 Pioneer Electronic Corporation DC motor driving device

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