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JPS5778382A - Driving circuit for dc motor - Google Patents

Driving circuit for dc motor

Info

Publication number
JPS5778382A
JPS5778382A JP15145280A JP15145280A JPS5778382A JP S5778382 A JPS5778382 A JP S5778382A JP 15145280 A JP15145280 A JP 15145280A JP 15145280 A JP15145280 A JP 15145280A JP S5778382 A JPS5778382 A JP S5778382A
Authority
JP
Japan
Prior art keywords
circuit
transistor
discharge
motor
warning
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.)
Granted
Application number
JP15145280A
Other languages
Japanese (ja)
Other versions
JPS6223557B2 (en
Inventor
Katsuo Kobari
Keiji Sakamoto
Yoshiaki Hachisuga
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.)
Fanuc Corp
Original Assignee
Fanuc Corp
Fujitsu Fanuc 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 Fanuc Corp, Fujitsu Fanuc Ltd filed Critical Fanuc Corp
Priority to JP15145280A priority Critical patent/JPS5778382A/en
Publication of JPS5778382A publication Critical patent/JPS5778382A/en
Publication of JPS6223557B2 publication Critical patent/JPS6223557B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
    • H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
    • H02H7/122—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. DC/AC converters
    • H02H7/1225—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. DC/AC converters responsive to internal faults, e.g. shoot-through

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Continuous-Control Power Sources That Use Transistors (AREA)
  • Stopping Of Electric Motors (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

PURPOSE:To prevent the breakage of the circuit element generating from an abnormal discharge for the subject driving circuit by a method wherein a monitoring circuit, which gives a warning when the conduction time of a transistor exceeds the prescribed time in the motor every discharging circuit containing a discharge transistor. CONSTITUTION:In the case of a circuit having a DC motor connected to a bridge circuit 2 consisting of four transistors 21-24, for example, a discharge circuit 5 is provided between the bridge circuit 2 and an AC commutation circuit 6. A diode 55 to be used for voltage detection and a discharge transistor 51 are provided, and when there exists feedback energy in excess of the prescribed value when regenerating braking is performed, the energy is consumed with a resistor 52 by giving ON position to the transistor 51. Besides, a monitoring circuit 18, containing a timing circuit consisting of a photo coupler and a capacitor, is attached to the transistor 51, and a warning is given when the conduction time of the transistor 51 ex ceeds the prescribed time.
JP15145280A 1980-10-30 1980-10-30 Driving circuit for dc motor Granted JPS5778382A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15145280A JPS5778382A (en) 1980-10-30 1980-10-30 Driving circuit for dc motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15145280A JPS5778382A (en) 1980-10-30 1980-10-30 Driving circuit for dc motor

Publications (2)

Publication Number Publication Date
JPS5778382A true JPS5778382A (en) 1982-05-17
JPS6223557B2 JPS6223557B2 (en) 1987-05-23

Family

ID=15518885

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15145280A Granted JPS5778382A (en) 1980-10-30 1980-10-30 Driving circuit for dc motor

Country Status (1)

Country Link
JP (1) JPS5778382A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4471277A (en) * 1982-04-30 1984-09-11 Westinghouse Electric Corp. Vehicle propulsion motor control apparatus
WO1984004635A1 (en) * 1983-05-13 1984-11-22 Motorola Inc Mosfet "h" switch circuit for a dc motor
JPS62104485A (en) * 1985-10-30 1987-05-14 Nec Corp Control circuit of dc motor
JPS63136990A (en) * 1986-11-27 1988-06-09 Omron Tateisi Electronics Co Control circuit for servo motor
JPS6450788A (en) * 1987-08-19 1989-02-27 Ckd Controls Driving device for miniature motor
JPS6469280A (en) * 1987-09-08 1989-03-15 Sankyo Seiki Seisakusho Kk Method of stopping motor
US7151355B2 (en) * 2005-03-31 2006-12-19 Hitachi, Ltd. Electric motor driving system, electric four-wheel drive vehicle, and hybrid vehicle

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5563586A (en) * 1978-11-04 1980-05-13 Fanuc Ltd Driving circuit for induction motor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5563586A (en) * 1978-11-04 1980-05-13 Fanuc Ltd Driving circuit for induction motor

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4471277A (en) * 1982-04-30 1984-09-11 Westinghouse Electric Corp. Vehicle propulsion motor control apparatus
WO1984004635A1 (en) * 1983-05-13 1984-11-22 Motorola Inc Mosfet "h" switch circuit for a dc motor
JPS62104485A (en) * 1985-10-30 1987-05-14 Nec Corp Control circuit of dc motor
JPS63136990A (en) * 1986-11-27 1988-06-09 Omron Tateisi Electronics Co Control circuit for servo motor
JPS6450788A (en) * 1987-08-19 1989-02-27 Ckd Controls Driving device for miniature motor
JPS6469280A (en) * 1987-09-08 1989-03-15 Sankyo Seiki Seisakusho Kk Method of stopping motor
US7151355B2 (en) * 2005-03-31 2006-12-19 Hitachi, Ltd. Electric motor driving system, electric four-wheel drive vehicle, and hybrid vehicle
CN100413208C (en) * 2005-03-31 2008-08-20 株式会社日立制作所 Electric motor drives, electric four-wheel drive vehicles and hybrid vehicles

Also Published As

Publication number Publication date
JPS6223557B2 (en) 1987-05-23

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