GB1126436A - Improvements in magnetic scanning circuits for electron beam tubes - Google Patents
Improvements in magnetic scanning circuits for electron beam tubesInfo
- Publication number
- GB1126436A GB1126436A GB3245766A GB3245766A GB1126436A GB 1126436 A GB1126436 A GB 1126436A GB 3245766 A GB3245766 A GB 3245766A GB 3245766 A GB3245766 A GB 3245766A GB 1126436 A GB1126436 A GB 1126436A
- Authority
- GB
- United Kingdom
- Prior art keywords
- deflection
- transistor
- july
- compensate
- diode
- 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
- H03K4/69—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 an amplifier
- H03K4/696—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 an amplifier using means for reducing power dissipation or for shortening the flyback time, e.g. applying a higher voltage during flyback time
Landscapes
- Details Of Television Scanning (AREA)
- Amplifiers (AREA)
Abstract
1,126,436. Transistor sawtooth circuits. COMPAGNIE FRANCAISE THOMSON HOUSTON HOTCHKISS - BRANDT. 19 July, 1966 [19 July, 1965], No. 32457/66. Heading H3T. A class B magnetic deflection circuit, particularly for field deflection in television apparatus, comprises a series arrangement of two transistors T1, T2 and a diode across the power supply, the transistors operating in pushpull, pulses being supplied to the junction of the diode and one transistor so as to compensate for reduction of supply voltage of that transistor during the flyback period. As described, T1 is driven by a field deflection waveform at 5 and feeds an anti-phased output to the base of T2 so that a push-pull deflection current is fed to deflection coils L. The waveform at the emitter of T1 is differentiated by C3, amplified and inverted by T3 and fed to the collector of T2 so as to compensate for the reduction in supply voltage caused by the negative-going pulse at the emitter during the flyback. Capacitor C4 may be replaced by a step-up transformer.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR25147A FR1452147A (en) | 1965-07-19 | 1965-07-19 | Enhancements to Magnetic Scanning Circuits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1126436A true GB1126436A (en) | 1968-09-05 |
Family
ID=8584779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3245766A Expired GB1126436A (en) | 1965-07-19 | 1966-07-19 | Improvements in magnetic scanning circuits for electron beam tubes |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE1462483A1 (en) |
| FR (1) | FR1452147A (en) |
| GB (1) | GB1126436A (en) |
| NL (1) | NL6610080A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5411778Y2 (en) * | 1973-01-19 | 1979-05-25 | ||
| JPS51126010A (en) * | 1975-04-24 | 1976-11-02 | Sony Corp | Serrated wave current circuit |
-
1965
- 1965-07-19 FR FR25147A patent/FR1452147A/en not_active Expired
-
1966
- 1966-07-12 DE DE19661462483 patent/DE1462483A1/en active Pending
- 1966-07-18 NL NL6610080A patent/NL6610080A/xx unknown
- 1966-07-19 GB GB3245766A patent/GB1126436A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1452147A (en) | 1966-02-25 |
| DE1462483A1 (en) | 1968-12-19 |
| NL6610080A (en) | 1967-01-20 |
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