GB1381103A - Transistorised line deflection circuits - Google Patents
Transistorised line deflection circuitsInfo
- Publication number
- GB1381103A GB1381103A GB5857671A GB5857671A GB1381103A GB 1381103 A GB1381103 A GB 1381103A GB 5857671 A GB5857671 A GB 5857671A GB 5857671 A GB5857671 A GB 5857671A GB 1381103 A GB1381103 A GB 1381103A
- Authority
- GB
- United Kingdom
- Prior art keywords
- deflection circuit
- stage
- voltage
- path
- dec
- 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
- H03K4/48—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices
- H03K4/60—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth current is produced through an inductor
- H03K4/62—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth current is produced through an inductor using a semiconductor device operating as a switching device
Landscapes
- Details Of Television Scanning (AREA)
Abstract
1381103 D.C. - D.C. conversion LICENTIA PATENT-VERWALTUNGS GmbH 16 Dec 1971 [24 Dec 1970] 58576/71 Heading H2F [Also in Division H3] In a line deflection circuit a parallel resistorcapacitor combination 19, 20 in series with the current path of the deflection circuit is charged from a winding 15 of the line output transformer via a diode 18 to limit the voltage across the transistor 9 to a safe level. A stabilized supply stage 2 provides a working voltage from the mains. The resistor 19 (24, Fig. 2, not shown) may be shunted by other circuitry (25) in a television receiver using the invention. The earthed end of capacitor 6 may be connected alternatively to the terminal 23 so that if the resistor 19 is short circuited temporarily the voltage across the deflection circuit remains constant. A resistive path (Fig. 2, not shown) from 23 to a control circuit of stage 2 provides negative feedback to reduce + U B if the deflection circuit is short circuited. A diode (28) may be included in the path such that a fall in the potential at 23 does not lower +U B . The stage 2 may include current limiting.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2063711 | 1970-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1381103A true GB1381103A (en) | 1975-01-22 |
Family
ID=5792112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5857671A Expired GB1381103A (en) | 1970-12-24 | 1971-12-16 | Transistorised line deflection circuits |
Country Status (10)
| Country | Link |
|---|---|
| AT (1) | AT308211B (en) |
| AU (1) | AU454450B2 (en) |
| BR (1) | BR7108510D0 (en) |
| DE (1) | DE2063711B1 (en) |
| ES (1) | ES398128A1 (en) |
| FI (1) | FI53643C (en) |
| FR (1) | FR2118983B1 (en) |
| GB (1) | GB1381103A (en) |
| IT (1) | IT943828B (en) |
| SE (1) | SE365377B (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1316762A (en) * | 1961-03-30 | 1963-02-01 | Telefunken Patent | Transistor assembly, in particular to produce sawtooth currents |
| US3217101A (en) * | 1961-11-08 | 1965-11-09 | Motorola Inc | Television receiver power supply |
-
1970
- 1970-12-24 DE DE2063711A patent/DE2063711B1/en active Pending
-
1971
- 1971-12-03 AU AU36459/71A patent/AU454450B2/en not_active Expired
- 1971-12-10 IT IT32228/71A patent/IT943828B/en active
- 1971-12-13 AT AT1069371A patent/AT308211B/en not_active IP Right Cessation
- 1971-12-16 GB GB5857671A patent/GB1381103A/en not_active Expired
- 1971-12-20 ES ES398128A patent/ES398128A1/en not_active Expired
- 1971-12-20 FI FI3628/71A patent/FI53643C/en active
- 1971-12-21 FR FR7145951A patent/FR2118983B1/fr not_active Expired
- 1971-12-21 SE SE16424/71A patent/SE365377B/xx unknown
- 1971-12-22 BR BR8510/71A patent/BR7108510D0/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BR7108510D0 (en) | 1973-06-12 |
| AU454450B2 (en) | 1974-10-31 |
| SE365377B (en) | 1974-03-18 |
| AU3645971A (en) | 1973-06-07 |
| DE2063711B1 (en) | 1972-05-25 |
| FR2118983A1 (en) | 1972-08-04 |
| FI53643C (en) | 1978-06-12 |
| FR2118983B1 (en) | 1977-01-28 |
| FI53643B (en) | 1978-02-28 |
| IT943828B (en) | 1973-04-10 |
| AT308211B (en) | 1973-06-25 |
| ES398128A1 (en) | 1975-03-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
| PCNP | Patent ceased through non-payment of renewal fee |