JPS6447271A - Overcurrent protective circuit - Google Patents
Overcurrent protective circuitInfo
- Publication number
- JPS6447271A JPS6447271A JP20087587A JP20087587A JPS6447271A JP S6447271 A JPS6447271 A JP S6447271A JP 20087587 A JP20087587 A JP 20087587A JP 20087587 A JP20087587 A JP 20087587A JP S6447271 A JPS6447271 A JP S6447271A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- output voltage
- overcurrent detection
- detection section
- power
- 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
Landscapes
- Dc-Dc Converters (AREA)
Abstract
PURPOSE:To accelerate the output voltage droop control by providing an auxiliary rectifier circuit for detecting the secondary winding voltage of a main transformer, a condenser and an overcurrent detection section. CONSTITUTION:The switching power is constituted of a main transformer 1, DC power 8 which connected to a primary winding of it, a switching element 2 of a transistor, etc., a rectifier smoothing circuit 3 and a control circuit 4 controlling the element 2 in accordance with output voltage of the circuit 3, and the constant output voltage is supplied to a load 9. An overcurrent protective circuit of the power is constituted of an auxiliary rectifier circuit 5 to rectify the voltage induced to the secondary winding, a condenser 6 and an overcurrent detection section 7. And, the overcurrent detection for the load 9 in the time of short-circuit can be made by comparing the output voltage of the auxiliary rectifier circuit 5 with the output voltage of the rectifier smoothing circuit 3 at the overcurrent detection section 7, and an 'on' period of the switching element 2 is shortened to make the constant current droop control of the output voltage.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20087587A JPS6447271A (en) | 1987-08-13 | 1987-08-13 | Overcurrent protective circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20087587A JPS6447271A (en) | 1987-08-13 | 1987-08-13 | Overcurrent protective circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6447271A true JPS6447271A (en) | 1989-02-21 |
JPH0524748B2 JPH0524748B2 (en) | 1993-04-08 |
Family
ID=16431689
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20087587A Granted JPS6447271A (en) | 1987-08-13 | 1987-08-13 | Overcurrent protective circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6447271A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06304707A (en) * | 1993-04-27 | 1994-11-01 | Nippon Steel Corp | Apparatus and method for continuously casting double layer cast billet |
JP2010017047A (en) * | 2008-07-07 | 2010-01-21 | Cosel Co Ltd | Three-phase power factor improving circuit |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57185523A (en) * | 1981-05-11 | 1982-11-15 | Fujitsu Denso Ltd | Switching power supply provided with dummy resistor |
-
1987
- 1987-08-13 JP JP20087587A patent/JPS6447271A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57185523A (en) * | 1981-05-11 | 1982-11-15 | Fujitsu Denso Ltd | Switching power supply provided with dummy resistor |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06304707A (en) * | 1993-04-27 | 1994-11-01 | Nippon Steel Corp | Apparatus and method for continuously casting double layer cast billet |
JP2010017047A (en) * | 2008-07-07 | 2010-01-21 | Cosel Co Ltd | Three-phase power factor improving circuit |
Also Published As
Publication number | Publication date |
---|---|
JPH0524748B2 (en) | 1993-04-08 |
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