JPS6430458A - Three-phase ac phase controller - Google Patents

Three-phase ac phase controller

Info

Publication number
JPS6430458A
JPS6430458A JP62184158A JP18415887A JPS6430458A JP S6430458 A JPS6430458 A JP S6430458A JP 62184158 A JP62184158 A JP 62184158A JP 18415887 A JP18415887 A JP 18415887A JP S6430458 A JPS6430458 A JP S6430458A
Authority
JP
Japan
Prior art keywords
zero
cross
phases
phase
computing
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
JP62184158A
Other languages
Japanese (ja)
Inventor
Hisaaki Tsukahara
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP62184158A priority Critical patent/JPS6430458A/en
Publication of JPS6430458A publication Critical patent/JPS6430458A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To enhance reliability, by arranging a one-phase zero-cross detecting means, a zero-cross computing means between other two phases, and an angle computing means for computing the conduction timing of respective power controlling elements. CONSTITUTION:A three-phase AC phase controller is composed of a detecting means 7 for detecting a zero-cross between R-S phases, a conduction angle setting means 8 for setting the conduction angle of a TRIAC 2, a one-chip microcomputer 9, and an element controlling means 10. The zero-cross detecting means 7 is composed of a photo-coupler 13, and is connected to the external interruption input terminal of the microcomputer 9. The microcomputer 9 has a means for measuring a zero-cross distance between the R-S phases, a means for computing a zero-cross between S-T phases and between R-T phases from said distance, and an angle computing means for computing the conduction timing of each TRIAC 2 on the basis of said means. As a result, the zero-cross between respective phases is uniformly set on the basis of an only one-phase zero-cross distance.
JP62184158A 1987-07-22 1987-07-22 Three-phase ac phase controller Pending JPS6430458A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62184158A JPS6430458A (en) 1987-07-22 1987-07-22 Three-phase ac phase controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62184158A JPS6430458A (en) 1987-07-22 1987-07-22 Three-phase ac phase controller

Publications (1)

Publication Number Publication Date
JPS6430458A true JPS6430458A (en) 1989-02-01

Family

ID=16148379

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62184158A Pending JPS6430458A (en) 1987-07-22 1987-07-22 Three-phase ac phase controller

Country Status (1)

Country Link
JP (1) JPS6430458A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006004932A (en) * 2004-06-17 2006-01-05 Aries Electronics Inc Shielded integrated circuit probe

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53110360A (en) * 1977-03-08 1978-09-27 Mitsubishi Electric Corp Phase control circuit
JPS5914371A (en) * 1982-07-14 1984-01-25 Toshiba Corp Controller for inverter
JPS62107315A (en) * 1985-11-06 1987-05-18 Matsushita Electric Ind Co Ltd Phase control device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53110360A (en) * 1977-03-08 1978-09-27 Mitsubishi Electric Corp Phase control circuit
JPS5914371A (en) * 1982-07-14 1984-01-25 Toshiba Corp Controller for inverter
JPS62107315A (en) * 1985-11-06 1987-05-18 Matsushita Electric Ind Co Ltd Phase control device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006004932A (en) * 2004-06-17 2006-01-05 Aries Electronics Inc Shielded integrated circuit probe

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