JPS57119669A - Controlling method for shifting digital type firing pulse phase - Google Patents
Controlling method for shifting digital type firing pulse phaseInfo
- Publication number
- JPS57119669A JPS57119669A JP56003172A JP317281A JPS57119669A JP S57119669 A JPS57119669 A JP S57119669A JP 56003172 A JP56003172 A JP 56003172A JP 317281 A JP317281 A JP 317281A JP S57119669 A JPS57119669 A JP S57119669A
- Authority
- JP
- Japan
- Prior art keywords
- counter
- cycle
- pulse phase
- firing pulses
- controlling method
- 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
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
- H02M1/00—Details of apparatus for conversion
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
- H02M1/084—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters using a control circuit common to several phases of a multi-phase system
- H02M1/0845—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters using a control circuit common to several phases of a multi-phase system digitally controlled (or with digital control)
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Direct Current Motors (AREA)
- Power Conversion In General (AREA)
Abstract
PURPOSE:To produce desired firing pulses by delaying one cycle only against a variation in power frequency by a method wherein a counter required for producing firing pulses is also used for power cycle counting and the following set value is corrected by the cycle. CONSTITUTION:A firing pulse phase shift control circuit used for the digital speed control for a DC motor is formed by including a microcomputer 1, registor 10, comparator 11, synchronous signal generating circuit 12, and counter 13. And the pulse train (b) of the synchronous signal generating circuit 12 is used as the interruption signal of the computer 1 and is also used as a reset signal of the counter 13 by forming a pulse train (b') delayed a fixed time through a monostable circuit 18 to guide one side of the output in the counter 13 to the computer 1. Therefore, a half cycle of the power source is counted to correct the set value to the comparator 11 by the counted value, so, firing pulses corresponding to a command can be produced even if the power frequency varies.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56003172A JPS57119669A (en) | 1981-01-14 | 1981-01-14 | Controlling method for shifting digital type firing pulse phase |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56003172A JPS57119669A (en) | 1981-01-14 | 1981-01-14 | Controlling method for shifting digital type firing pulse phase |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57119669A true JPS57119669A (en) | 1982-07-26 |
Family
ID=11549955
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56003172A Pending JPS57119669A (en) | 1981-01-14 | 1981-01-14 | Controlling method for shifting digital type firing pulse phase |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57119669A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6126464A (en) * | 1984-07-12 | 1986-02-05 | Fuji Electric Co Ltd | Digital phase controller |
JPS6139882A (en) * | 1984-07-30 | 1986-02-26 | Fuji Xerox Co Ltd | Speed controller of copying machine |
-
1981
- 1981-01-14 JP JP56003172A patent/JPS57119669A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6126464A (en) * | 1984-07-12 | 1986-02-05 | Fuji Electric Co Ltd | Digital phase controller |
JPS6139882A (en) * | 1984-07-30 | 1986-02-26 | Fuji Xerox Co Ltd | Speed controller of copying machine |
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