JPS5646661A - Monitoring device for high power transistor chopper - Google Patents
Monitoring device for high power transistor chopperInfo
- Publication number
- JPS5646661A JPS5646661A JP12302079A JP12302079A JPS5646661A JP S5646661 A JPS5646661 A JP S5646661A JP 12302079 A JP12302079 A JP 12302079A JP 12302079 A JP12302079 A JP 12302079A JP S5646661 A JPS5646661 A JP S5646661A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- main circuit
- circuit
- current
- gtr
- 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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
PURPOSE:To speedily and surely break a main circuit current when various troubles occurred on a chopper circuit by a method wherein a switch located on a main circuit is released in response to a trouble detection signal of the main circuit. CONSTITUTION:In response to an accelerating signal sent from a current setting device 1, control of a current flow rate is properly performed at a comparator CMP making comparison with the current flowing on a main circuit and having a proper control at the same time in accordance with a signal sent from a delta wave generator 3, a pulse output of CMP is added to the base of a high transistor GTR and a switching is performed. At this time, an ''off'' signal from an ''off'' signal generator 4 is overlapped on the pulse output of CMP through an ''or'' circuit OR. This signal is a pulse signal which has an interval of several ms-100ms and by adding this signal to GTR control signals, it potects GTR from coming into an overall continuity status when a trouble occurred within the control circuit system. Therefore, the current of the main circuit can be broken speedily and without fail for any trouble arising on the chopper circuit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12302079A JPS604671B2 (en) | 1979-09-25 | 1979-09-25 | High power transistor chopper monitoring device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12302079A JPS604671B2 (en) | 1979-09-25 | 1979-09-25 | High power transistor chopper monitoring device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5646661A true JPS5646661A (en) | 1981-04-27 |
JPS604671B2 JPS604671B2 (en) | 1985-02-05 |
Family
ID=14850228
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12302079A Expired JPS604671B2 (en) | 1979-09-25 | 1979-09-25 | High power transistor chopper monitoring device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS604671B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60121990A (en) * | 1983-12-01 | 1985-06-29 | Hitachi Medical Corp | Motor drive type moving x-ray device |
JPS62293819A (en) * | 1986-06-13 | 1987-12-21 | Fuji Electric Co Ltd | Switching power supply protection circuit |
-
1979
- 1979-09-25 JP JP12302079A patent/JPS604671B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60121990A (en) * | 1983-12-01 | 1985-06-29 | Hitachi Medical Corp | Motor drive type moving x-ray device |
JPS62293819A (en) * | 1986-06-13 | 1987-12-21 | Fuji Electric Co Ltd | Switching power supply protection circuit |
Also Published As
Publication number | Publication date |
---|---|
JPS604671B2 (en) | 1985-02-05 |
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