JPS5553179A - Thyristor chopper - Google Patents
Thyristor chopperInfo
- Publication number
- JPS5553179A JPS5553179A JP12457878A JP12457878A JPS5553179A JP S5553179 A JPS5553179 A JP S5553179A JP 12457878 A JP12457878 A JP 12457878A JP 12457878 A JP12457878 A JP 12457878A JP S5553179 A JPS5553179 A JP S5553179A
- Authority
- JP
- Japan
- Prior art keywords
- chopper
- commutation
- decreased
- failure
- potential
- 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
- Stand-By Power Supply Arrangements (AREA)
- Dc-Dc Converters (AREA)
Abstract
PURPOSE: To prevent the failure of a good chopper when a failed chopper is separated by inserting a rectifying element into a commutation-capacitor charging circuit so as to keep the voltage when the commutation in choppers which are connected in parallel is performed.
CONSTITUTION: When a chipper 20 fails and a switch circuit 15 is turned on by a failure-sensing signal, a short-circuit current is flown from a dc power supply 11, thereby the potential at a point A is decreased. On the other hand the potential at a commutation capacitor 21' of a chopper 20' is not decreased because of the presence of a rectifying element 1'. Therefore, the chopper 20' does not become abnormal, and the normal operation can be continued.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12457878A JPS5553179A (en) | 1978-10-12 | 1978-10-12 | Thyristor chopper |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12457878A JPS5553179A (en) | 1978-10-12 | 1978-10-12 | Thyristor chopper |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5553179A true JPS5553179A (en) | 1980-04-18 |
Family
ID=14888931
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12457878A Pending JPS5553179A (en) | 1978-10-12 | 1978-10-12 | Thyristor chopper |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5553179A (en) |
-
1978
- 1978-10-12 JP JP12457878A patent/JPS5553179A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS52132322A (en) | Protective device for dc circuit | |
JPS5563586A (en) | Driving circuit for induction motor | |
JPS56119318A (en) | Electric discharge machining apparatus | |
JPS5553179A (en) | Thyristor chopper | |
JPS57206946A (en) | Cell backup circuit for memory | |
JPS5233055A (en) | Switching method of power source | |
JPS5438523A (en) | Inverter | |
JPS5578314A (en) | Regulated power source unit | |
JPS561620A (en) | Output circuit | |
JPS5445741A (en) | Control system of inverter | |
JPS5340845A (en) | Protective circuit for short-circuit | |
JPS51111627A (en) | Inverter commutation failure detection circuit | |
JPS54156115A (en) | Excess current protector for dc motors | |
JPS53101613A (en) | Drive circuit for dc electric motor vehicle | |
JPS52148878A (en) | Electric dust collector | |
JPS55142253A (en) | Detecting circuit for fault in electric power source | |
JPS5484225A (en) | Switching power source circuit | |
JPS52146831A (en) | Commutation capacitor voltage detecting circuit for current type inverter | |
JPS54150959A (en) | Thyristor forced ignition circuit | |
JPS54155446A (en) | Power unit | |
JPS549726A (en) | Protective method for inverter | |
JPS55102022A (en) | Power conversion unit | |
JPS54134327A (en) | Suppressing overcurrent in inverter device | |
JPS5627410A (en) | Carrying implement | |
JPS5293942A (en) | Protective relay device of electrical line power factor improvement el ement |