JPS57132761A - Boosting chopper - Google Patents

Boosting chopper

Info

Publication number
JPS57132761A
JPS57132761A JP1496281A JP1496281A JPS57132761A JP S57132761 A JPS57132761 A JP S57132761A JP 1496281 A JP1496281 A JP 1496281A JP 1496281 A JP1496281 A JP 1496281A JP S57132761 A JPS57132761 A JP S57132761A
Authority
JP
Japan
Prior art keywords
capacitor
reactor
load
switch
semiconductor switch
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
JP1496281A
Other languages
Japanese (ja)
Inventor
Yoshizo Akao
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 JP1496281A priority Critical patent/JPS57132761A/en
Publication of JPS57132761A publication Critical patent/JPS57132761A/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

Landscapes

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

Abstract

PURPOSE:To protect a capacitor by connecting a reactor between a power source and a load in parallel with a semiconductor switch, and detecting it with the capacitor voltage to close the switch, thereby preventing the overcharge of the capacitor at the time of breaking a load. CONSTITUTION:A boosting chopper is formed by providing a series circuit of a reactor 4 and a diode 5 between a rectifier 3 and a load 9 and connecting the first semiconductor switch 7 and a capacitor 6 thereto. The second semiconductor switch 14 is connected in parallel with the reactor 4, the voltage of the capacitor 6 is compared by a comparator 11 with a reference value through a level converter 10, an input breaker 2 is opened, and the switch 14 is closed. Accordingly, when the capacitor 6 is overcharged at the time of breaking the load, the energy can be consumed by the closed loop of the reactor 4 and the switch 14, thereby preventing the damage of the capacitor 6.
JP1496281A 1981-02-05 1981-02-05 Boosting chopper Pending JPS57132761A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1496281A JPS57132761A (en) 1981-02-05 1981-02-05 Boosting chopper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1496281A JPS57132761A (en) 1981-02-05 1981-02-05 Boosting chopper

Publications (1)

Publication Number Publication Date
JPS57132761A true JPS57132761A (en) 1982-08-17

Family

ID=11875600

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1496281A Pending JPS57132761A (en) 1981-02-05 1981-02-05 Boosting chopper

Country Status (1)

Country Link
JP (1) JPS57132761A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS619192A (en) * 1984-06-22 1986-01-16 Hitachi Ltd Drive device of ac motor
JPS62150697A (en) * 1985-12-23 1987-07-04 松下電工株式会社 Discharge lamp burner
JPH10201078A (en) * 1997-01-17 1998-07-31 Sumitomo Metal Ind Ltd Protective circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS619192A (en) * 1984-06-22 1986-01-16 Hitachi Ltd Drive device of ac motor
JPS62150697A (en) * 1985-12-23 1987-07-04 松下電工株式会社 Discharge lamp burner
JPH10201078A (en) * 1997-01-17 1998-07-31 Sumitomo Metal Ind Ltd Protective circuit

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