GB791001A - Improvements in and relating to smoothing networks - Google Patents
Improvements in and relating to smoothing networksInfo
- Publication number
- GB791001A GB791001A GB454855A GB454855A GB791001A GB 791001 A GB791001 A GB 791001A GB 454855 A GB454855 A GB 454855A GB 454855 A GB454855 A GB 454855A GB 791001 A GB791001 A GB 791001A
- Authority
- GB
- United Kingdom
- Prior art keywords
- smoothing
- inductor
- transistor
- resistor
- capacitor
- 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.)
- Expired
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
- H02M1/14—Arrangements for reducing ripples from dc input or output
- H02M1/15—Arrangements for reducing ripples from dc input or output using active elements
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
- Dc-Dc Converters (AREA)
Abstract
791,001. Smoothing direct current. FERGUSON RADIO CORPORATION, Ltd. Feb. 14, 1956 [Feb. 15, 1955]; No. 4548/55. Class 38 (2). A circuit 16 for smoothing the output of a rectifier 13 comprises a transistor 21 of which the collector and emitter electrodes are connected respectively to input and output terminals 17; 22 of the smoothing circuit, the base electrode being connected to the junction point of a resistor 19 and capacitor 20 connected'in series between input terminal 17, and'the other input and output terminals 18, 23. The time constant of charge and discharge of the capacitor exceeds ¢ f where f is the frequency of the supply to be rectified. With the rectifier poled as shown in Fig. 1 a P-N-P transistor is used, but with reverse poling, the transistor is of the N-P-N. type, Fig. 2 (not shown). Smoothing circuit 16 may be preceded by a capacitor in parallel and. an inductor in series, Fig. 3, (not shown). Resistor 19 may be replaced; by an inductor or inductor-resistor combination. Two or more transistors may be connected in parallel, and several smoothing networks may be connected in cascade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB454855A GB791001A (en) | 1955-02-15 | 1955-02-15 | Improvements in and relating to smoothing networks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB454855A GB791001A (en) | 1955-02-15 | 1955-02-15 | Improvements in and relating to smoothing networks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB791001A true GB791001A (en) | 1958-02-19 |
Family
ID=9779239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB454855A Expired GB791001A (en) | 1955-02-15 | 1955-02-15 | Improvements in and relating to smoothing networks |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB791001A (en) |
-
1955
- 1955-02-15 GB GB454855A patent/GB791001A/en not_active Expired
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