JPS579273A - Power converter - Google Patents

Power converter

Info

Publication number
JPS579273A
JPS579273A JP8087280A JP8087280A JPS579273A JP S579273 A JPS579273 A JP S579273A JP 8087280 A JP8087280 A JP 8087280A JP 8087280 A JP8087280 A JP 8087280A JP S579273 A JPS579273 A JP S579273A
Authority
JP
Japan
Prior art keywords
temperature
thyristor
cooler
coolant
detector
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
JP8087280A
Other languages
Japanese (ja)
Inventor
Akio Hirata
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 JP8087280A priority Critical patent/JPS579273A/en
Publication of JPS579273A publication Critical patent/JPS579273A/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
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/66—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal
    • H02M7/68—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters
    • H02M7/72—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Inverter Devices (AREA)

Abstract

PURPOSE:To contrive to increase the output capacity of a power converter by variably controlling the output current limiting value with an electric signal relative to the temperature of a semiconductor element. CONSTITUTION:The temperature detector 23 of a thyristor 141 produces an electric signal relating to any of the junction temperature T1 of the thyristor 141, the temperature TF of a cooler 142 and the temperature TA of coolant. The temperature of the thyristor 141 will rise DELTATJ=P1/(RTH1+RTH2) with respect to the the temperature TA as to the thermal resistance RTH1 from the junction of the thyristor 141 to the cooler 142 and the thermal resistance RTH2 from the cooler 142 to the coolant. Even if any point of the equivalent circuit is detected in the temperature by the detector 23, the junction temperature TJ of the thyristor 141 can be protected within the maximum allowable temperature. When the current limiting value Ia is variably controlled by the detector 23 as described above, the output capacity of the power converter can be increased by utilizing the margin of the current limiting value caused by the influence of the output frequency F and the temperature TA of the coolant.
JP8087280A 1980-06-17 1980-06-17 Power converter Pending JPS579273A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8087280A JPS579273A (en) 1980-06-17 1980-06-17 Power converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8087280A JPS579273A (en) 1980-06-17 1980-06-17 Power converter

Publications (1)

Publication Number Publication Date
JPS579273A true JPS579273A (en) 1982-01-18

Family

ID=13730426

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8087280A Pending JPS579273A (en) 1980-06-17 1980-06-17 Power converter

Country Status (1)

Country Link
JP (1) JPS579273A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59106882A (en) * 1982-12-10 1984-06-20 Mitsubishi Electric Corp Protecting device for air conditioner with inverter
JPS60121991A (en) * 1983-12-02 1985-06-29 Mitsubishi Electric Corp Inverter controlled air conditioner
JPS62118791A (en) * 1985-11-18 1987-05-30 Sanyo Electric Co Ltd Controller for motor
JPS6395072A (en) * 1986-10-08 1988-04-26 株式会社　総合医学研究所 Low frequency electric stimulation signal generator
JPS6395067A (en) * 1986-10-08 1988-04-26 株式会社総合医学研究所 Method for generating low frequency electric stimulation signal
JPH01311819A (en) * 1988-06-08 1989-12-15 Fuji Electric Co Ltd Protective circuit for overcurrent of semiconductor power conversion device
JP2009005435A (en) * 2007-06-19 2009-01-08 Nec Tohoku Ltd Stabilizing power supply

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5110323A (en) * 1975-05-31 1976-01-27 Tokyo Shibaura Electric Co DENDOKINOSEIGYO SOCHI

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5110323A (en) * 1975-05-31 1976-01-27 Tokyo Shibaura Electric Co DENDOKINOSEIGYO SOCHI

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59106882A (en) * 1982-12-10 1984-06-20 Mitsubishi Electric Corp Protecting device for air conditioner with inverter
JPS60121991A (en) * 1983-12-02 1985-06-29 Mitsubishi Electric Corp Inverter controlled air conditioner
JPS62118791A (en) * 1985-11-18 1987-05-30 Sanyo Electric Co Ltd Controller for motor
JPS6395072A (en) * 1986-10-08 1988-04-26 株式会社　総合医学研究所 Low frequency electric stimulation signal generator
JPS6395067A (en) * 1986-10-08 1988-04-26 株式会社総合医学研究所 Method for generating low frequency electric stimulation signal
JPH0357785B2 (en) * 1986-10-08 1991-09-03 Sogo Igaku Kenkyusho Kk
JPH044909B2 (en) * 1986-10-08 1992-01-29
JPH01311819A (en) * 1988-06-08 1989-12-15 Fuji Electric Co Ltd Protective circuit for overcurrent of semiconductor power conversion device
JP2009005435A (en) * 2007-06-19 2009-01-08 Nec Tohoku Ltd Stabilizing power supply

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