JPS57134725A - Conduction controller for lattice control rectifying element - Google Patents
Conduction controller for lattice control rectifying elementInfo
- Publication number
- JPS57134725A JPS57134725A JP1953981A JP1953981A JPS57134725A JP S57134725 A JPS57134725 A JP S57134725A JP 1953981 A JP1953981 A JP 1953981A JP 1953981 A JP1953981 A JP 1953981A JP S57134725 A JPS57134725 A JP S57134725A
- Authority
- JP
- Japan
- Prior art keywords
- pulse
- width
- rectifying element
- wave
- zero cross
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Voltage And Current In General (AREA)
- Power Conversion In General (AREA)
Abstract
PURPOSE:To increase the accuracy of conduction control for a lattice control rectifying element, by detecting the width of zero cross detection pulse with a microcomputer and correcting the trigger phase for thyristors or the like in accordance with the width. CONSTITUTION:A power supply voltage which is stepped down so that the peak value is 15 volts, is full-wave-rectified at D0 and applied to a C-MOS buffer amplifier (inverter) IN1 via a resistor R2. With the 2.5 threshold level of the amplifier IN1 as a boundary, the upper part goes to L and the lower part goes to H, and a zero cross detection pulse (L level) is produced and the pulse width is about 400musec. This pulse is wave-shaped and inverted at a Schmitt circuit IN2 and inputted to an interruption terminal of a microcomputer MPU, and the pulse width detection is made by setting the fall as a start point. Thus, the load is controlled via a high speed switching circuit (not shown).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1953981A JPS57134725A (en) | 1981-02-12 | 1981-02-12 | Conduction controller for lattice control rectifying element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1953981A JPS57134725A (en) | 1981-02-12 | 1981-02-12 | Conduction controller for lattice control rectifying element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57134725A true JPS57134725A (en) | 1982-08-20 |
Family
ID=12002117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1953981A Pending JPS57134725A (en) | 1981-02-12 | 1981-02-12 | Conduction controller for lattice control rectifying element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57134725A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6059969A (en) * | 1983-09-12 | 1985-04-06 | Ishida Scales Mfg Co Ltd | Electromagnetic feeder drive controller |
| CN109991535A (en) * | 2019-04-19 | 2019-07-09 | 青岛亿联客信息技术有限公司 | A kind of flash on-off control system and its input flash detection circuit |
-
1981
- 1981-02-12 JP JP1953981A patent/JPS57134725A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6059969A (en) * | 1983-09-12 | 1985-04-06 | Ishida Scales Mfg Co Ltd | Electromagnetic feeder drive controller |
| CN109991535A (en) * | 2019-04-19 | 2019-07-09 | 青岛亿联客信息技术有限公司 | A kind of flash on-off control system and its input flash detection circuit |
| CN109991535B (en) * | 2019-04-19 | 2024-04-30 | 青岛亿联客信息技术有限公司 | Flash switch control system and input flash detection circuit thereof |
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