JPS5574614A - Short circuit protection circuit for constant voltage power supply - Google Patents
Short circuit protection circuit for constant voltage power supplyInfo
- Publication number
- JPS5574614A JPS5574614A JP14763978A JP14763978A JPS5574614A JP S5574614 A JPS5574614 A JP S5574614A JP 14763978 A JP14763978 A JP 14763978A JP 14763978 A JP14763978 A JP 14763978A JP S5574614 A JPS5574614 A JP S5574614A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- constant voltage
- load
- resistor
- power supply
- 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
- Continuous-Control Power Sources That Use Transistors (AREA)
Abstract
PURPOSE: To enable to prevent the damage of control transistor in advance, by turning on the thyristor through the voltage across the resistor connected in series with the load as the gate input, if current more than a given value flows to the resistor.
CONSTITUTION: The collector and emitter of the control transistor Tr0 is connected in series with the load L and the constant voltage circuit is constituted so that the voltage across the load can be kept at a given voltage by controlling the base potential of Tr0. The resistor R1 is connected in series with the load L and when the current more than a given value flows to the resistor R1, the thyristor SCR is turned on with the gate input of the voltage across it. Thus, the destruction of Tr0 can be prevented in advance through turning off Tr0.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14763978A JPS5574614A (en) | 1978-11-29 | 1978-11-29 | Short circuit protection circuit for constant voltage power supply |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14763978A JPS5574614A (en) | 1978-11-29 | 1978-11-29 | Short circuit protection circuit for constant voltage power supply |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5574614A true JPS5574614A (en) | 1980-06-05 |
Family
ID=15434876
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14763978A Pending JPS5574614A (en) | 1978-11-29 | 1978-11-29 | Short circuit protection circuit for constant voltage power supply |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5574614A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4222834Y1 (en) * | 1965-07-02 | 1967-12-25 | ||
JPS5326432B2 (en) * | 1975-10-07 | 1978-08-02 |
-
1978
- 1978-11-29 JP JP14763978A patent/JPS5574614A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4222834Y1 (en) * | 1965-07-02 | 1967-12-25 | ||
JPS5326432B2 (en) * | 1975-10-07 | 1978-08-02 |
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