FR2282764A1 - TV cathode ray tube deflection system - uses L-C damping which suppresses harmonics and prevents triggering of scanning thyristor - Google Patents
TV cathode ray tube deflection system - uses L-C damping which suppresses harmonics and prevents triggering of scanning thyristorInfo
- Publication number
- FR2282764A1 FR2282764A1 FR7525718A FR7525718A FR2282764A1 FR 2282764 A1 FR2282764 A1 FR 2282764A1 FR 7525718 A FR7525718 A FR 7525718A FR 7525718 A FR7525718 A FR 7525718A FR 2282764 A1 FR2282764 A1 FR 2282764A1
- Authority
- FR
- France
- Prior art keywords
- circuit
- ray tube
- cathode ray
- damping
- deflection system
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
- H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
- H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
- H04N3/18—Generation of supply voltages, in combination with electron beam deflecting
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Details Of Television Scanning (AREA)
Abstract
The circuitry controlling the horizontal deflection of a television cathode ray tube has a facility to eliminate distortion due to parasitic capacitance resulting in higher harmonics being superimposed on the line frequency. The commutator circuit of the deflection system is switched by a thyristor (10) triggered by impulsed. A paralle circuit has a line linearity coil (12), horizontal deflection coil (13) and capacitor (14). A second circuit has the primary winding (15) of the line transformer and a scanning capacitor (16). An inductance -capacitance circuit (17) coupled to the primary winding is sized to provide damping of the parasitic higher harmonics to provide suppression to amplitude insufficient to trigger the thyristor.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2440204A DE2440204C3 (en) | 1974-08-22 | 1974-08-22 | Horizontal deflection stage for a television receiver |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2282764A1 true FR2282764A1 (en) | 1976-03-19 |
FR2282764B3 FR2282764B3 (en) | 1978-04-07 |
Family
ID=5923777
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7525718A Granted FR2282764A1 (en) | 1974-08-22 | 1975-08-20 | TV cathode ray tube deflection system - uses L-C damping which suppresses harmonics and prevents triggering of scanning thyristor |
Country Status (6)
Country | Link |
---|---|
BR (1) | BR7505364A (en) |
DE (1) | DE2440204C3 (en) |
FI (1) | FI752368A (en) |
FR (1) | FR2282764A1 (en) |
IT (1) | IT1041284B (en) |
ZA (1) | ZA755363B (en) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1616577C2 (en) * | 1962-05-26 | 1974-05-02 | Telefunken Patentverwertungsgesellschaft Mbh, 7900 Ulm | Transistor receiver with built-in ferrite antenna |
-
1974
- 1974-08-22 DE DE2440204A patent/DE2440204C3/en not_active Expired
-
1975
- 1975-08-20 IT IT51011/75A patent/IT1041284B/en active
- 1975-08-20 FR FR7525718A patent/FR2282764A1/en active Granted
- 1975-08-21 FI FI752368A patent/FI752368A/fi not_active Application Discontinuation
- 1975-08-21 ZA ZA00755363A patent/ZA755363B/en unknown
- 1975-08-21 BR BR7505364*A patent/BR7505364A/en unknown
Also Published As
Publication number | Publication date |
---|---|
ZA755363B (en) | 1976-07-28 |
DE2440204A1 (en) | 1976-03-04 |
DE2440204C3 (en) | 1982-03-04 |
FI752368A (en) | 1976-02-23 |
BR7505364A (en) | 1976-08-03 |
DE2440204B2 (en) | 1978-12-07 |
FR2282764B3 (en) | 1978-04-07 |
IT1041284B (en) | 1980-01-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |