JPS5771109A - Attenuation circuit for flyback voltage - Google Patents

Attenuation circuit for flyback voltage

Info

Publication number
JPS5771109A
JPS5771109A JP14863180A JP14863180A JPS5771109A JP S5771109 A JPS5771109 A JP S5771109A JP 14863180 A JP14863180 A JP 14863180A JP 14863180 A JP14863180 A JP 14863180A JP S5771109 A JPS5771109 A JP S5771109A
Authority
JP
Japan
Prior art keywords
load
voltage
zener diode
turned
power supply
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
JP14863180A
Other languages
Japanese (ja)
Other versions
JPS6161527B2 (en
Inventor
Hiroyoshi Shiosaki
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.)
Juki Corp
Original Assignee
Tokyo Juki Industrial 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 Juki Industrial Co Ltd filed Critical Tokyo Juki Industrial Co Ltd
Priority to JP14863180A priority Critical patent/JPS5771109A/en
Publication of JPS5771109A publication Critical patent/JPS5771109A/en
Publication of JPS6161527B2 publication Critical patent/JPS6161527B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Power Conversion In General (AREA)
  • Electronic Switches (AREA)

Abstract

PURPOSE:To increase operating speed of an inductive load by clamping through a Zener diode and power supply the voltage generated at the both ends of the inductive load when the load is turned off. CONSTITUTION:A load 1 is actuated when transistors Tr1 and Tr2 are turned on by a switching control circuit SC. At this time, the series circuit including diode D1 and Zener diode ZD remains off. When the load 1 is actuated by pulse voltage, the voltage across the both ends of inductance L is flywheeled by a diode D2 to the duration between the pulses. If the transistors Tr1 and Tr2 are turned off, the voltage generated at the both ends of the inductance L becomes equal to the voltage V=VC+VZ across the ends of the load through ZD-D1-power supply VC-P2. Therefore, attenuation time Ta can be shortened because the attenuation speed of current iL on the L may be proportional to the V. In such a constitution, the heat generated in the Zener diode ZD can be suppressed by supplying from the power supply a considerable amount of the power consumed by the ZD. Furthermore, a cost can be lowered by utilizing the Zener diode having a low rated voltage and the inductive load can also be operated at a high speed.
JP14863180A 1980-10-22 1980-10-22 Attenuation circuit for flyback voltage Granted JPS5771109A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14863180A JPS5771109A (en) 1980-10-22 1980-10-22 Attenuation circuit for flyback voltage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14863180A JPS5771109A (en) 1980-10-22 1980-10-22 Attenuation circuit for flyback voltage

Publications (2)

Publication Number Publication Date
JPS5771109A true JPS5771109A (en) 1982-05-01
JPS6161527B2 JPS6161527B2 (en) 1986-12-26

Family

ID=15457102

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14863180A Granted JPS5771109A (en) 1980-10-22 1980-10-22 Attenuation circuit for flyback voltage

Country Status (1)

Country Link
JP (1) JPS5771109A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2709594A1 (en) * 1993-09-04 1995-03-10 Bosch Gmbh Robert Method and device for controlling an electromagnetic consumer
US6639444B2 (en) * 2001-07-26 2003-10-28 Autonetworks Technologies, Ltd. Protection circuit
JP2015065377A (en) * 2013-09-26 2015-04-09 カヤバ工業株式会社 electric circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2709594A1 (en) * 1993-09-04 1995-03-10 Bosch Gmbh Robert Method and device for controlling an electromagnetic consumer
US6639444B2 (en) * 2001-07-26 2003-10-28 Autonetworks Technologies, Ltd. Protection circuit
JP2015065377A (en) * 2013-09-26 2015-04-09 カヤバ工業株式会社 electric circuit

Also Published As

Publication number Publication date
JPS6161527B2 (en) 1986-12-26

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