JPS5610085A - Controlling device of releasing brake for electric motor - Google Patents

Controlling device of releasing brake for electric motor

Info

Publication number
JPS5610085A
JPS5610085A JP8532179A JP8532179A JPS5610085A JP S5610085 A JPS5610085 A JP S5610085A JP 8532179 A JP8532179 A JP 8532179A JP 8532179 A JP8532179 A JP 8532179A JP S5610085 A JPS5610085 A JP S5610085A
Authority
JP
Japan
Prior art keywords
signal
electric motor
revolutions
frequency
converter
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
JP8532179A
Other languages
Japanese (ja)
Inventor
Katsuharu Mizumoto
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic Corp
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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP8532179A priority Critical patent/JPS5610085A/en
Publication of JPS5610085A publication Critical patent/JPS5610085A/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
    • H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
    • H02P3/02—Details of stopping control
    • H02P3/04—Means for stopping or slowing by a separate brake, e.g. friction brake or eddy-current brake

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Stopping Of Electric Motors (AREA)

Abstract

PURPOSE:To secure the signal for releasing brake corresponding to prearranged number of revolutions by inputting a frequency generator's frequency signal to a D/A converter and detecting the electric motor's number of revolutions on pulse signal of fixed frequency. CONSTITUTION:The frequency generator 1 generates the frequency signal corresponding to the electric motor 2's number of revolutions. This signal, after being wave-form shaped by means of a wave shaping circuit 3, is supplied to the D/A converter 8. Then the pulse signal of fixed frequency from a pulse generating means 9 is turned to a clock pulse by means of the D/A converter 8, outputting an analog voltage corresponding to the number of clock pulses during high-level output generating period of the wave-form shaping circuit 3. Thus signal for releasing brake is output after comparing with the reference voltage by a comparison circuit 6. Consequently it is possible to generate an analog voltage corresponding to the electric motor 2's number of revolutions and steadily obtain the signal for releasing the brake.
JP8532179A 1979-07-05 1979-07-05 Controlling device of releasing brake for electric motor Pending JPS5610085A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8532179A JPS5610085A (en) 1979-07-05 1979-07-05 Controlling device of releasing brake for electric motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8532179A JPS5610085A (en) 1979-07-05 1979-07-05 Controlling device of releasing brake for electric motor

Publications (1)

Publication Number Publication Date
JPS5610085A true JPS5610085A (en) 1981-02-02

Family

ID=13855346

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8532179A Pending JPS5610085A (en) 1979-07-05 1979-07-05 Controlling device of releasing brake for electric motor

Country Status (1)

Country Link
JP (1) JPS5610085A (en)

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