JPS55120225A - Semiconductor breaker - Google Patents

Semiconductor breaker

Info

Publication number
JPS55120225A
JPS55120225A JP2678779A JP2678779A JPS55120225A JP S55120225 A JPS55120225 A JP S55120225A JP 2678779 A JP2678779 A JP 2678779A JP 2678779 A JP2678779 A JP 2678779A JP S55120225 A JPS55120225 A JP S55120225A
Authority
JP
Japan
Prior art keywords
output
circuit
breaker
low level
comparator
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
JP2678779A
Other languages
Japanese (ja)
Inventor
Yukihiro Kurisu
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP2678779A priority Critical patent/JPS55120225A/en
Publication of JPS55120225A publication Critical patent/JPS55120225A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage

Abstract

PURPOSE:To improve antinoise performance by automatically closing a breaker again constant time after the breaker is tripped and then by carrying operation on as it is if a re-trip would not be done within a constant time. CONSTITUTION:Analog comparator 9 is given hysteresis characteristics and when the output of comparator 9 changes from a high level to a low level (down edge), one-shot circuit 10 is operated to output from the Q output of circuit 10 one-shot signal (e), which is passed through OR circuit 11 to reset FF2, thereby decreasing the Q output of FF2 down to the low level. Therefore when control circuit 14 is ON at this time, breaker 15 is closed again. Simultaneously, the output of NOT circuit 3 is held at the low level and the discharge of the voltage across capacitor 5 starts by way of GND, capacitor 5, resistance 4, and circuit 3 in the order. Further, if no abnormality of a main circuit current would not be detected 1, the operation is carried out (a) as it is and after period T2, output (d) of comparator 9 is inverted to set an initial state.
JP2678779A 1979-03-09 1979-03-09 Semiconductor breaker Pending JPS55120225A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2678779A JPS55120225A (en) 1979-03-09 1979-03-09 Semiconductor breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2678779A JPS55120225A (en) 1979-03-09 1979-03-09 Semiconductor breaker

Publications (1)

Publication Number Publication Date
JPS55120225A true JPS55120225A (en) 1980-09-16

Family

ID=12203020

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2678779A Pending JPS55120225A (en) 1979-03-09 1979-03-09 Semiconductor breaker

Country Status (1)

Country Link
JP (1) JPS55120225A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06201927A (en) * 1992-10-29 1994-07-22 Hoechst Celanese Corp High-molecular optical fiber bundle and its preparation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06201927A (en) * 1992-10-29 1994-07-22 Hoechst Celanese Corp High-molecular optical fiber bundle and its preparation

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