JPS5771109A - Attenuation circuit for flyback voltage - Google Patents
Attenuation circuit for flyback voltageInfo
- 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
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)
- Electronic Switches (AREA)
- Power Conversion In General (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.
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)
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 |
-
1980
- 1980-10-22 JP JP14863180A patent/JPS5771109A/en active Granted
Cited By (3)
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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