JPS57162965A - Chopper circuit - Google Patents
Chopper circuitInfo
- Publication number
- JPS57162965A JPS57162965A JP56046144A JP4614481A JPS57162965A JP S57162965 A JPS57162965 A JP S57162965A JP 56046144 A JP56046144 A JP 56046144A JP 4614481 A JP4614481 A JP 4614481A JP S57162965 A JPS57162965 A JP S57162965A
- Authority
- JP
- Japan
- Prior art keywords
- load
- thyristor
- capacitor
- thm
- switch
- 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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/125—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
- H02M3/135—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Thyristor Switches And Gates (AREA)
- Dc-Dc Converters (AREA)
- Power Conversion In General (AREA)
Abstract
PURPOSE:To control electric power supplied to a load even after a main thyristor is conducted for long time by providing a switch in series with the main thyristor out of a charging route of a commutation capacitor. CONSTITUTION:After a main thyristor ThM i triggered, an auxiliary thyristor ThA is triggered, the maximum voltage is applied to a load Z to lower the voltage to the load Z. In this case, charge necessary to turn OFF the main thyristor ThM is not retained in a commutation capacitor C. Accordingly, a switch S2 is opened for a short time, and the capacitor C is charged through a switch S1, a diode D, a reactor L and a load Z. As a result, charge sufficient to turning OFF the main and auxiliary thyristors ThM, ThA is charged in the capacitor C. Accordinly, a variable resistor VR is subsequently regulated to generated a trigger to supply to the thyristor ThA. Then, a chopper operation starts, and desired average voltage is applied to the load Z.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56046144A JPS57162965A (en) | 1981-03-31 | 1981-03-31 | Chopper circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56046144A JPS57162965A (en) | 1981-03-31 | 1981-03-31 | Chopper circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57162965A true JPS57162965A (en) | 1982-10-06 |
Family
ID=12738768
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56046144A Pending JPS57162965A (en) | 1981-03-31 | 1981-03-31 | Chopper circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57162965A (en) |
-
1981
- 1981-03-31 JP JP56046144A patent/JPS57162965A/en active Pending
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