KR890005549U - Frequency comparison circuit for motor speed control - Google Patents

Frequency comparison circuit for motor speed control

Info

Publication number
KR890005549U
KR890005549U KR2019870013418U KR870013418U KR890005549U KR 890005549 U KR890005549 U KR 890005549U KR 2019870013418 U KR2019870013418 U KR 2019870013418U KR 870013418 U KR870013418 U KR 870013418U KR 890005549 U KR890005549 U KR 890005549U
Authority
KR
South Korea
Prior art keywords
speed control
comparison circuit
motor speed
frequency comparison
frequency
Prior art date
Application number
KR2019870013418U
Other languages
Korean (ko)
Other versions
KR910000957Y1 (en
Inventor
최경선
Original Assignee
삼성전자 주식회사
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 삼성전자 주식회사 filed Critical 삼성전자 주식회사
Priority to KR2019870013418U priority Critical patent/KR910000957Y1/en
Publication of KR890005549U publication Critical patent/KR890005549U/en
Application granted granted Critical
Publication of KR910000957Y1 publication Critical patent/KR910000957Y1/en

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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/46—Controlling, regulating, or indicating speed

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Electric Motors In General (AREA)
KR2019870013418U 1987-08-11 1987-08-11 Frequency comparateing circuit KR910000957Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019870013418U KR910000957Y1 (en) 1987-08-11 1987-08-11 Frequency comparateing circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019870013418U KR910000957Y1 (en) 1987-08-11 1987-08-11 Frequency comparateing circuit

Publications (2)

Publication Number Publication Date
KR890005549U true KR890005549U (en) 1989-04-20
KR910000957Y1 KR910000957Y1 (en) 1991-02-13

Family

ID=19266364

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019870013418U KR910000957Y1 (en) 1987-08-11 1987-08-11 Frequency comparateing circuit

Country Status (1)

Country Link
KR (1) KR910000957Y1 (en)

Also Published As

Publication number Publication date
KR910000957Y1 (en) 1991-02-13

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 19970829

Year of fee payment: 9

LAPS Lapse due to unpaid annual fee