JPS5725174A - Da/ac converter - Google Patents

Da/ac converter

Info

Publication number
JPS5725174A
JPS5725174A JP9834280A JP9834280A JPS5725174A JP S5725174 A JPS5725174 A JP S5725174A JP 9834280 A JP9834280 A JP 9834280A JP 9834280 A JP9834280 A JP 9834280A JP S5725174 A JPS5725174 A JP S5725174A
Authority
JP
Japan
Prior art keywords
lowered
time
output
shortened
raised
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.)
Granted
Application number
JP9834280A
Other languages
Japanese (ja)
Other versions
JPS638716B2 (en
Inventor
Tetsuo Omori
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP9834280A priority Critical patent/JPS5725174A/en
Publication of JPS5725174A publication Critical patent/JPS5725174A/en
Publication of JPS638716B2 publication Critical patent/JPS638716B2/ja
Granted 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
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/538—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a push-pull configuration
    • H02M7/53803—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a push-pull configuration with automatic control of output voltage or current

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

PURPOSE:To prevent the damage of a switching element and to improve the stability of the output of the element by suppressing the variation in the storage time of the switching element. CONSTITUTION:When the saturation of a transistor (Tr)21 is raised to increase the storage time, the time duration of the primary current of a power transformer 4 is extended, the inverted input voltage of a differential amplifier 36 is raised, and the output voltage of the amplifier is lowered. Thus, the base bias of the Tr37 is reduced, and the operating voltages of the Tr10, 11 and the primary coil voltage of a pulse transformer 15 are lowered. In this manner, the base currents of the Tr20, 21 are reduced, and their saturation degrees can be lowered. Thus, the storage times of the Tr20, 21 are shortened, and the primary current of the output power transformer 4 is shortened in the period of time.
JP9834280A 1980-07-18 1980-07-18 Da/ac converter Granted JPS5725174A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9834280A JPS5725174A (en) 1980-07-18 1980-07-18 Da/ac converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9834280A JPS5725174A (en) 1980-07-18 1980-07-18 Da/ac converter

Publications (2)

Publication Number Publication Date
JPS5725174A true JPS5725174A (en) 1982-02-09
JPS638716B2 JPS638716B2 (en) 1988-02-24

Family

ID=14217224

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9834280A Granted JPS5725174A (en) 1980-07-18 1980-07-18 Da/ac converter

Country Status (1)

Country Link
JP (1) JPS5725174A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4672524A (en) * 1985-09-03 1987-06-09 Hitachi, Ltd. Overcurrent and overvoltage protected transistor inverter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4672524A (en) * 1985-09-03 1987-06-09 Hitachi, Ltd. Overcurrent and overvoltage protected transistor inverter

Also Published As

Publication number Publication date
JPS638716B2 (en) 1988-02-24

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