GB1517862A - Heater supply circuit for a cathode-ray tube in a television receiver - Google Patents
Heater supply circuit for a cathode-ray tube in a television receiverInfo
- Publication number
- GB1517862A GB1517862A GB25836/76A GB2583676A GB1517862A GB 1517862 A GB1517862 A GB 1517862A GB 25836/76 A GB25836/76 A GB 25836/76A GB 2583676 A GB2583676 A GB 2583676A GB 1517862 A GB1517862 A GB 1517862A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cathode
- transformer
- ray tube
- horizontal
- television receiver
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/63—Generation or supply of power specially adapted for television receivers
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Details Of Television Scanning (AREA)
- Transforming Electric Information Into Light Information (AREA)
Abstract
1517862 Cathode supplies for cathode-ray tubes INTERNATIONAL STANDARD ELECTRIC CORP 22 June 1976 [1 July 1975] 25836/76 Heading H4T [Also in Division H2] In a television receiver, the supply for the heater of the cathode-ray tube is derived from the horizontal centring coil HCTr which corrects the position of the image on the screen of the tube. A primary winding of a flyback transformer FTr is supplied with a horizontal line sweep signal HLF and a secondary winding of the transformer is connected via a D.C. blocking capacitor C to horizontal deflection coils HDC. The horizontal centring coil, which has a high impedance to prevent short circuiting of the coils HDC, is constructed as an auto transformer from which the heater voltage V PTH for the cathode ray tube is tapped. In a modification, the auto transformer is replaced by a transformer having separate primary and secondary windings, the secondary winding providing the heater voltage and the d.c. for the horizontal centring control.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2529361A DE2529361C3 (en) | 1975-07-01 | 1975-07-01 | Picture tube heating for a transistorized television receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1517862A true GB1517862A (en) | 1978-07-12 |
Family
ID=5950401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25836/76A Expired GB1517862A (en) | 1975-07-01 | 1976-06-22 | Heater supply circuit for a cathode-ray tube in a television receiver |
Country Status (6)
| Country | Link |
|---|---|
| AU (1) | AU497956B2 (en) |
| DE (1) | DE2529361C3 (en) |
| GB (1) | GB1517862A (en) |
| IT (1) | IT1063771B (en) |
| NL (1) | NL7606748A (en) |
| ZA (1) | ZA763826B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8005651A (en) * | 1980-10-14 | 1982-05-03 | Philips Nv | IMAGE DISPLAY DEVICE, CONTAINING AN IMAGE DISPLAY TUBE AND THE LIGHT WIRE FEEDING CIRCUIT. |
-
1975
- 1975-07-01 DE DE2529361A patent/DE2529361C3/en not_active Expired
-
1976
- 1976-06-22 NL NL7606748A patent/NL7606748A/en not_active Application Discontinuation
- 1976-06-22 GB GB25836/76A patent/GB1517862A/en not_active Expired
- 1976-06-22 IT IT24546/76A patent/IT1063771B/en active
- 1976-06-28 AU AU15354/76A patent/AU497956B2/en not_active Expired
- 1976-06-28 ZA ZA763826A patent/ZA763826B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL7606748A (en) | 1977-01-04 |
| IT1063771B (en) | 1985-02-11 |
| ZA763826B (en) | 1977-05-25 |
| AU1535476A (en) | 1978-01-05 |
| DE2529361B2 (en) | 1979-07-05 |
| DE2529361C3 (en) | 1980-03-06 |
| DE2529361A1 (en) | 1977-01-20 |
| AU497956B2 (en) | 1979-01-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |