GB652107A - Improvements relating to beam-deflection circuits for cathode ray tubes - Google Patents
Improvements relating to beam-deflection circuits for cathode ray tubesInfo
- Publication number
- GB652107A GB652107A GB279348A GB279348A GB652107A GB 652107 A GB652107 A GB 652107A GB 279348 A GB279348 A GB 279348A GB 279348 A GB279348 A GB 279348A GB 652107 A GB652107 A GB 652107A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuit
- feedback
- flyback
- cathode ray
- ray tubes
- 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
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K4/00—Generating pulses having essentially a finite slope or stepped portions
- H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
- H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
- H03K4/10—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only
- H03K4/26—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth current is produced through an inductor
- H03K4/28—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth current is produced through an inductor using a tube operating as a switching device
Landscapes
- Details Of Television Scanning (AREA)
Abstract
652,107. Saw-tooth generating circuits. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Jan. 30, 1948, No. 2793. [Class 40 (vi)] A saw-tooth current generating circuit has a negative feedback circuit from the secondary of the output transformer to the cathode of the valve feeding the primary of the transformer, the feedback circuit including a rectifier which absorbs excess voltages in the secondary circuit and which is non-conducting during the flyback. The feedback may thus be rendered ineffective during the flyback period and the flyback time thereby reduced. A differentiating circuit 12, 13 may be provided so that substantial feedback occurs only when the output current rises unduly rapidly. Specification 633,366 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB279348A GB652107A (en) | 1948-01-30 | 1948-01-30 | Improvements relating to beam-deflection circuits for cathode ray tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB279348A GB652107A (en) | 1948-01-30 | 1948-01-30 | Improvements relating to beam-deflection circuits for cathode ray tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB652107A true GB652107A (en) | 1951-04-18 |
Family
ID=9746014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB279348A Expired GB652107A (en) | 1948-01-30 | 1948-01-30 | Improvements relating to beam-deflection circuits for cathode ray tubes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB652107A (en) |
-
1948
- 1948-01-30 GB GB279348A patent/GB652107A/en not_active Expired
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