JPS6430458A - Three-phase ac phase controller - Google Patents
Three-phase ac phase controllerInfo
- 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
Links
Landscapes
- Control Of Ac Motors In General (AREA)
- Ac-Ac Conversion (AREA)
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.
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)
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)
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 |
-
1987
- 1987-07-22 JP JP62184158A patent/JPS6430458A/en active Pending
Patent Citations (3)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006004932A (en) * | 2004-06-17 | 2006-01-05 | Aries Electronics Inc | Shielded integrated circuit probe |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS6430458A (en) | Three-phase ac phase controller | |
ES8106382A1 (en) | Converter apparatus | |
JPS5780292A (en) | Power factor controller for 3-phase ac induction motor | |
JPS5246545A (en) | Induction heating system | |
JPS6430457A (en) | Phase controller | |
SE7407941L (en) | ||
JPS5532404A (en) | Controlling of induction motor | |
EP0234952A3 (en) | Electric power source | |
JPS53114028A (en) | Inverter controlling lead angle control circuit | |
JPS5339430A (en) | Controller for current-type inverter | |
JPS6434189A (en) | Control system of induction motor | |
JPS5398020A (en) | Rotational direction controller for three-phase ac motor | |
JPS5731391A (en) | Speed controlling device for induction motor | |
JPS53115016A (en) | Dc excitation system for induction synchronous motor | |
JPS56116127A (en) | Voltage controller | |
JPS5379250A (en) | Electric machine | |
JPS56150987A (en) | Controller for speed of wound-rotor induction motor | |
JPS5330761A (en) | Controlling power converter of reactive power compensation type | |
JPS5644394A (en) | Controller for ac motor | |
JPS552935A (en) | Phase rotation detector | |
JPS6474061A (en) | Multiphase ac rectifier circuit | |
JPS57177279A (en) | Power converter | |
JPS55120386A (en) | Control system for dc commutatorless motor | |
JPS55157991A (en) | Speed control system for induction motor | |
JPS55157992A (en) | Speed control system for induction motor |