JPS54127546A - Circuit for protecting semiconductor device from overcurrent - Google Patents
Circuit for protecting semiconductor device from overcurrentInfo
- Publication number
- JPS54127546A JPS54127546A JP3585778A JP3585778A JPS54127546A JP S54127546 A JPS54127546 A JP S54127546A JP 3585778 A JP3585778 A JP 3585778A JP 3585778 A JP3585778 A JP 3585778A JP S54127546 A JPS54127546 A JP S54127546A
- Authority
- JP
- Japan
- Prior art keywords
- acting fuse
- quick
- overcurrent
- melting
- load
- 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
- Emergency Protection Circuit Devices (AREA)
- Protection Of Static Devices (AREA)
- Fuses (AREA)
Abstract
PURPOSE: To detect any overcurrent at the time of load short-circuiting or failure in commutation, and, at the same time, to cause an overcurrent only to flow to a quick acting fuse, thereby to accelerate melting of said quick-acting fuse so that the apparent melting characteristic of the quick acting fuse can be freely selected.
CONSTITUTION: Any abnormality in a load 4 or inverter action is detected by a detector 32, a trigger signal is generated in a gate trigger circuit 31, and a thyristor 13 is turned off. When the thyristor 13 is turned off, the charging load of the capacitor 19 is discharged through the quick acting fuse 3, and a surge current flowing through the quick acting fuse 3 is increased to accelerate the melting of the quick- acting fuse 3.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3585778A JPS54127546A (en) | 1978-03-27 | 1978-03-27 | Circuit for protecting semiconductor device from overcurrent |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3585778A JPS54127546A (en) | 1978-03-27 | 1978-03-27 | Circuit for protecting semiconductor device from overcurrent |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54127546A true JPS54127546A (en) | 1979-10-03 |
JPS6243414B2 JPS6243414B2 (en) | 1987-09-14 |
Family
ID=12453648
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3585778A Granted JPS54127546A (en) | 1978-03-27 | 1978-03-27 | Circuit for protecting semiconductor device from overcurrent |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54127546A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6382350U (en) * | 1986-11-18 | 1988-05-30 | ||
JP2013240152A (en) * | 2012-05-11 | 2013-11-28 | Sony Corp | Power supply device, power supply control method and electrically driven vehicle |
-
1978
- 1978-03-27 JP JP3585778A patent/JPS54127546A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6382350U (en) * | 1986-11-18 | 1988-05-30 | ||
JP2013240152A (en) * | 2012-05-11 | 2013-11-28 | Sony Corp | Power supply device, power supply control method and electrically driven vehicle |
Also Published As
Publication number | Publication date |
---|---|
JPS6243414B2 (en) | 1987-09-14 |
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