JPS6474082A - Driving circuit for induction motor with braking function - Google Patents
Driving circuit for induction motor with braking functionInfo
- Publication number
- JPS6474082A JPS6474082A JP23065387A JP23065387A JPS6474082A JP S6474082 A JPS6474082 A JP S6474082A JP 23065387 A JP23065387 A JP 23065387A JP 23065387 A JP23065387 A JP 23065387A JP S6474082 A JPS6474082 A JP S6474082A
- Authority
- JP
- Japan
- Prior art keywords
- induction motor
- switches
- thyristors
- triode
- turning
- 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
Links
Abstract
PURPOSE:To prevent overheating the winding by turning off the unilateral semiconductor switches for a specific time only after turning off the two-way semiconductor switches for AC current supply in the time of braking. CONSTITUTION:A driving circuit for an induction motor 2 is connected to AC power source 11 through the triode AC switches 4-5 respectively as the two- way semiconductor switches on the both ends of the induction motor 2, and it is constituted by providing in parallel an all wave rectifier circuit 6 consisting of a diode bridge circuit, the resistors 10(a)-10(b) and the thyristors 8-9 as the unilateral semiconductor switches. And, at the operation mode, the thyristors 8-9 are turned off, and AC current is supplied to an induction motor 3 through the triode AC switches 4-5. After turning off the triode AC switches 4-5, the thyristors 8-9 are turned off, and enter into the braking mode. As the result, AC current is supplied from the all wave rectifier circuit 6 for a specific time only, and braking effect increases.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23065387A JPS6474082A (en) | 1987-09-14 | 1987-09-14 | Driving circuit for induction motor with braking function |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23065387A JPS6474082A (en) | 1987-09-14 | 1987-09-14 | Driving circuit for induction motor with braking function |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6474082A true JPS6474082A (en) | 1989-03-20 |
Family
ID=16911171
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23065387A Pending JPS6474082A (en) | 1987-09-14 | 1987-09-14 | Driving circuit for induction motor with braking function |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6474082A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002153087A (en) * | 2000-11-13 | 2002-05-24 | Max Co Ltd | Ac motor drive circuit |
-
1987
- 1987-09-14 JP JP23065387A patent/JPS6474082A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002153087A (en) * | 2000-11-13 | 2002-05-24 | Max Co Ltd | Ac motor drive circuit |
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