JPS5656177A - Turn-off time detecting circuit for inverter - Google Patents

Turn-off time detecting circuit for inverter

Info

Publication number
JPS5656177A
JPS5656177A JP13153279A JP13153279A JPS5656177A JP S5656177 A JPS5656177 A JP S5656177A JP 13153279 A JP13153279 A JP 13153279A JP 13153279 A JP13153279 A JP 13153279A JP S5656177 A JPS5656177 A JP S5656177A
Authority
JP
Japan
Prior art keywords
circuit
detected
turn
voltage
output
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
JP13153279A
Other languages
Japanese (ja)
Inventor
Yoshio Kubota
Koichiro Koizumi
Yasuo Nakagawa
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.)
Jeol Ltd
Original Assignee
Jeol Ltd
Nihon Denshi KK
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 Jeol Ltd, Nihon Denshi KK filed Critical Jeol Ltd
Priority to JP13153279A priority Critical patent/JPS5656177A/en
Publication of JPS5656177A publication Critical patent/JPS5656177A/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
    • H02M7/42—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
    • H02M7/505—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 thyratron or thyristor type requiring extinguishing means
    • H02M7/515—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only

Landscapes

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

Abstract

PURPOSE:To enable detection of an accurate turn-off time without any error due to a commutation time by employing a detecting signal of a voltage across a reactor inserted in series with a thyristor element. CONSTITUTION:A DC output from a power rectifier circuit 2 is converted by a bridge having thyristors 3-6, and the converted output is supplied to a tank load circuit 13. On the other hand, saturable reactors 7-10 are connected in series with the thyristor. Then, the terminal voltage of one saturable reactor 9 is detected by a pulse transformer 18, and the detected voltage is applied to a waveform shaping circuit 19, and the terminal voltage of the load 13 is detected by the pulse transformer 16, and the detected voltage is inputted to a waveform shaping circuit 17. The outputs from the circuits 17, 19 and a signal having out of phase by 180 deg. from the thrystor gate signal from a gate signal forming circuit 15 are applied to the inputs of an NAND circuit 20. The period of the turn-off time can be obtained as an output from the NAND circuit 20.
JP13153279A 1979-10-12 1979-10-12 Turn-off time detecting circuit for inverter Pending JPS5656177A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13153279A JPS5656177A (en) 1979-10-12 1979-10-12 Turn-off time detecting circuit for inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13153279A JPS5656177A (en) 1979-10-12 1979-10-12 Turn-off time detecting circuit for inverter

Publications (1)

Publication Number Publication Date
JPS5656177A true JPS5656177A (en) 1981-05-18

Family

ID=15060267

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13153279A Pending JPS5656177A (en) 1979-10-12 1979-10-12 Turn-off time detecting circuit for inverter

Country Status (1)

Country Link
JP (1) JPS5656177A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10446962B2 (en) 2016-05-18 2019-10-15 Sumitomo Wiring Systems, Ltd. Female terminal fitting
WO2023006007A1 (en) * 2021-07-30 2023-02-02 奇舍电子科技(上海)有限公司 Transient process time information detection apparatus for power electronic device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10446962B2 (en) 2016-05-18 2019-10-15 Sumitomo Wiring Systems, Ltd. Female terminal fitting
WO2023006007A1 (en) * 2021-07-30 2023-02-02 奇舍电子科技(上海)有限公司 Transient process time information detection apparatus for power electronic device

Similar Documents

Publication Publication Date Title
GB991862A (en) An inverter for producing an alternating current in a load from a direct current power supply
GB1528334A (en) Inverter control circuit
GB1254416A (en) Self-starting power converter
GB1362467A (en) Electric power converts
JPS5656177A (en) Turn-off time detecting circuit for inverter
JPS54100544A (en) Protection system for induction heating cooker
GB1301803A (en)
JPS56101379A (en) Controlling method and apparatus for pulse width modulating inverter
GB1483201A (en) Inverter arrangements
GB1250183A (en)
GB1287116A (en) Inverters
JPS5530237A (en) Gate driver for gate turn-off thyristor
SU1473031A1 (en) Method of measuring the switching angle in thyratron converters
GB1431262A (en) Power supply apparatus
Klaassens Analysis of a forced commutation circuit for design of a class or thyristor inverters
SU1601709A1 (en) Device for controlling semi-bridge thyristor inverter
JPS55157978A (en) Trebled current inverter
SU773860A1 (en) Converter
SU754638A1 (en) Apparatus for measuring turnoff time of control inverter gating circuts
JPS56153994A (en) Commutation failure preventing circuit of converter for linear thyristor motor
JPS57170075A (en) Invertor device
Revankar et al. Ideal Choppers and Pulsewidth Modulated Converter Systems
JPS57122675A (en) Short-circuit detection of gate turn-off thyristor inverter
GB1424637A (en) Circuit arrangement for feeding inductive alternating current loads
JPS5783167A (en) Chopper-controlled inverter