JPS54118515A - Electronic phase converter - Google Patents

Electronic phase converter

Info

Publication number
JPS54118515A
JPS54118515A JP2502478A JP2502478A JPS54118515A JP S54118515 A JPS54118515 A JP S54118515A JP 2502478 A JP2502478 A JP 2502478A JP 2502478 A JP2502478 A JP 2502478A JP S54118515 A JPS54118515 A JP S54118515A
Authority
JP
Japan
Prior art keywords
circuit
current
detection circuit
semiconductor elements
pulse signal
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
JP2502478A
Other languages
Japanese (ja)
Inventor
Ayanori Ishibashi
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 JP2502478A priority Critical patent/JPS54118515A/en
Publication of JPS54118515A publication Critical patent/JPS54118515A/en
Pending legal-status Critical Current

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  • Motor And Converter Starters (AREA)

Abstract

PURPOSE: To protect semiconductor elements by providing a latch circuit for effecting phase conversion by confirming that the current for the other phases is lower than the leakage current level of the semiconductor elements at the time of switching.
CONSTITUTION: A current detection circuit 18 produces a pulse signal "1" when the current in a main circuit 4 becomes lower than the leakage current level of thyristors 2. An operational circuit 14 delivers, when a pluse "1" is supplied from a light detection circuit 13 and a current detection circuit 18, a pulse signal "1" for triggering thyristors 2 in other pairs than those which have been in conduction to a gate pulse generating circuit 15.
COPYRIGHT: (C)1979,JPO&Japio
JP2502478A 1978-03-07 1978-03-07 Electronic phase converter Pending JPS54118515A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2502478A JPS54118515A (en) 1978-03-07 1978-03-07 Electronic phase converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2502478A JPS54118515A (en) 1978-03-07 1978-03-07 Electronic phase converter

Publications (1)

Publication Number Publication Date
JPS54118515A true JPS54118515A (en) 1979-09-14

Family

ID=12154336

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2502478A Pending JPS54118515A (en) 1978-03-07 1978-03-07 Electronic phase converter

Country Status (1)

Country Link
JP (1) JPS54118515A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4938170A (en) * 1986-01-21 1990-07-03 Ebara Corporation Thermal reactor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4938170A (en) * 1986-01-21 1990-07-03 Ebara Corporation Thermal reactor

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