JPS5771269A - Device for boosting chopper - Google Patents

Device for boosting chopper

Info

Publication number
JPS5771269A
JPS5771269A JP14631580A JP14631580A JPS5771269A JP S5771269 A JPS5771269 A JP S5771269A JP 14631580 A JP14631580 A JP 14631580A JP 14631580 A JP14631580 A JP 14631580A JP S5771269 A JPS5771269 A JP S5771269A
Authority
JP
Japan
Prior art keywords
fuse
scr
excessive current
semiconductor element
current detecting
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
JP14631580A
Other languages
Japanese (ja)
Inventor
Kaoru Matsuzaki
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 JP14631580A priority Critical patent/JPS5771269A/en
Publication of JPS5771269A publication Critical patent/JPS5771269A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/125—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M3/135—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • H02M3/137—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/142—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

PURPOSE:To prevent the interference to a power source by a method wherein an SCR is provided in the direction of discharge of capacitor load through the intermediary of a fuse, the SCR is ignited by a detecting signal sent from an excessive current detecting circuit, an input side circuit breaker is open-circuited, and the fuse to be used for element protection is cut off. CONSTITUTION:A semiconductor element protecting fuse 5 and an excessive current detecting circuit 10 are provided in series with a semiconductor element 14 to be used for switching, the SCR is provided in parallel with a diode 6 in reverse polarity and in the direction where the load stored in a capacitor 7 is discharged through the intermediary of the semiconductor element 4 and the fuse 5, the SCR11 is ignited by outputting an ignition command 12 with the detecting signal from the excessive current detecting circuit 10, and an OFF command 13 is outputted in such a manner that an input side circuit breaker 2 will be open-circuited. Through these procedures, the element protecting fuse is cut off quickly, and the interference to the DC power source 1 can be prevented.
JP14631580A 1980-10-21 1980-10-21 Device for boosting chopper Pending JPS5771269A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14631580A JPS5771269A (en) 1980-10-21 1980-10-21 Device for boosting chopper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14631580A JPS5771269A (en) 1980-10-21 1980-10-21 Device for boosting chopper

Publications (1)

Publication Number Publication Date
JPS5771269A true JPS5771269A (en) 1982-05-04

Family

ID=15404885

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14631580A Pending JPS5771269A (en) 1980-10-21 1980-10-21 Device for boosting chopper

Country Status (1)

Country Link
JP (1) JPS5771269A (en)

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