JPS5574614A - Short circuit protection circuit for constant voltage power supply - Google Patents

Short circuit protection circuit for constant voltage power supply

Info

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
Application number
JP14763978A
Other languages
Japanese (ja)
Inventor
Muneo Suzuki
Hitoshi Ikeda
Takeyoshi Kawamura
Yoshiharu Suzuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP14763978A priority Critical patent/JPS5574614A/en
Publication of JPS5574614A publication Critical patent/JPS5574614A/en
Pending legal-status Critical Current

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
JP14763978A 1978-11-29 1978-11-29 Short circuit protection circuit for constant voltage power supply Pending JPS5574614A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4222834Y1 (en) * 1965-07-02 1967-12-25
JPS5326432B2 (en) * 1975-10-07 1978-08-02

Patent Citations (2)

* Cited by examiner, † Cited by third party
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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