JPS5566293A - Control circuit for thyristor leonard device - Google Patents
Control circuit for thyristor leonard deviceInfo
- Publication number
- JPS5566293A JPS5566293A JP13768078A JP13768078A JPS5566293A JP S5566293 A JPS5566293 A JP S5566293A JP 13768078 A JP13768078 A JP 13768078A JP 13768078 A JP13768078 A JP 13768078A JP S5566293 A JPS5566293 A JP S5566293A
- Authority
- JP
- Japan
- Prior art keywords
- sensor
- control circuit
- motor
- bias
- regulating circuit
- 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
Landscapes
- Control Of Direct Current Motors (AREA)
Abstract
PURPOSE: To suppress overcurrents due to incompatibility of the phase of gate pulses and motor counter emf, by attaching a bias-regulating circuit, a sensor for sensing motor-rotating direction, and a sensor for converter operation to a Leonard control circuit.
CONSTITUTION: A motor M is connected to thyristors 100, which are connected in counter-parallel, and controlled by a Leonard control device 200 having a speed- regulating circuit, a current control circuit, a gate-phase control circuit, and an operating thyrister sensor. A sensor 400 for sensing the rotating direction of the motor M and a sensor 500 for converter operation are provided. And also is provided a bias regulating circuit 300 which gives bias to that the potential level of the armature counter emf and the converter output voltage become equal when both thyristors A and B are nonconductive. In this constitution, the potential difference due to incompatibility of the phase angle of the gate pulses and the counter emf can be eliminated, the overcurrent can be suppressed, and the device is protected.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13768078A JPS5566293A (en) | 1978-11-08 | 1978-11-08 | Control circuit for thyristor leonard device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13768078A JPS5566293A (en) | 1978-11-08 | 1978-11-08 | Control circuit for thyristor leonard device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5566293A true JPS5566293A (en) | 1980-05-19 |
Family
ID=15204296
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13768078A Pending JPS5566293A (en) | 1978-11-08 | 1978-11-08 | Control circuit for thyristor leonard device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5566293A (en) |
-
1978
- 1978-11-08 JP JP13768078A patent/JPS5566293A/en active Pending
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