NO116743B - - Google Patents
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- Publication number
- NO116743B NO116743B NO166092A NO16609266A NO116743B NO 116743 B NO116743 B NO 116743B NO 166092 A NO166092 A NO 166092A NO 16609266 A NO16609266 A NO 16609266A NO 116743 B NO116743 B NO 116743B
- Authority
- NO
- Norway
- Prior art keywords
- voltage
- capacitor
- tube
- circuit
- network
- Prior art date
Links
- 239000003990 capacitor Substances 0.000 claims description 33
- 238000004804 winding Methods 0.000 claims description 17
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 241000158147 Sator Species 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003415 peat Substances 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/07—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
- C23C22/08—Orthophosphates
- C23C22/12—Orthophosphates containing zinc cations
- C23C22/13—Orthophosphates containing zinc cations containing also nitrate or nitrite anions
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
- Details Of Television Scanning (AREA)
Description
Kopling til frembringelse av sagtannlbrmet strøm i en spole for vertikal avbøyning i en fjernsynsmottaker. Coupling for generating sawtooth current in a coil for vertical deflection in a television receiver.
Oppfinnelsen angår en kopling til frembringelse av en sagtannformet strøm i en spole for vertikal avbøyning i en fjernsynsmottaker, hvor avbøyningsspolen over en transformator er koplet inn i et rørs anodekrets og en kondensator i rørets sty-rekrets periodisk lades opp i en opplad-ningskrets som inneholder seriekoplingen av en motstand og en av transformatorens viklinger over hvilken der frembringes en spenning hvis fortegn er motsatt fortegnet av den spenning som opptrer over kondensatoren, og hvor motstanden og viklingen ligger utenfor kondensatorens utladningskrets. The invention relates to a connection for generating a sawtooth-shaped current in a coil for vertical deflection in a television receiver, where the deflection coil via a transformer is connected into a tube's anode circuit and a capacitor in the tube's control circuit is periodically charged in a charging circuit containing the series connection of a resistance and one of the windings of the transformer across which a voltage is produced whose sign is opposite to the voltage that appears across the capacitor, and where the resistance and the winding are outside the capacitor's discharge circuit.
Til grunn for kjente koplinger av denne art ligger den kjennsgjerning, at ved oppladning av en kondensator over en motstand tiltar kondensatorspenning ikke linjært med tiden, da ladestrømmen som følge av kondensatorspenningens motelektromo-toriske kraft ikke forblir konstant. Hvis der i ladekretsen innføres en spenning som motvirker kondensatorspenningen, kan en tilnærmet linjær økning av kondensatorspenningen oppnås, og hvis den innførte spenning overstiger kondensatorspenningen så er det sogar mulig å la spenningen på kondensatoren tilta sterkere enn linjært med tiden. Known connections of this kind are based on the fact that when charging a capacitor across a resistor, the capacitor voltage does not increase linearly with time, as the charging current does not remain constant as a result of the capacitor voltage's counterelectromotive force. If a voltage is introduced in the charging circuit that counteracts the capacitor voltage, an approximately linear increase of the capacitor voltage can be achieved, and if the introduced voltage exceeds the capacitor voltage, it is even possible to allow the voltage on the capacitor to increase more strongly than linearly with time.
De vanlige spoler for den vertikale av-bøyning i en fjernsynsmottaker forholder seg under avbøyningsstrømmens tilbakeløp nesten som en motstad. Hvis disse spoler er koplet til et rørs anodekrets over en transformator, så består det forenklede kop-lingsskjema av denne anodeimpedans i første tilnærmelse av transformatorens primærinduktivitet, til hvilken er parallell-koplet spolens motstand transformert til transformatorens primærside. Gjennom spolen og dermed også gjennom motstanden flyter eg sagtannformet strøm, og da spenningen over motstanden er lik spenningen over transformatorens primærinduktivitet, opptrer der i denne induktivitet en sagtannspenning. Det flyter derfor gjen-, nom denne induktivitet en parabolsk strøm. Rørets anodestrøm må derfor inne-holde en sagtannformet og en parabolsk komponent. For frembringelse av disse to komponenter er det ofte mulig å tilføre den nesten linjære sagtannspenning som opptrer over kondensatoren direkte, til rørets styregitter, når dette rør har en egnet krummet anodestrøm-gitterspenningskurve og hvis den ønskede parabolkorreksjon ikke behøver å være slik at et minimum av sag-tannspenningen etter begynnelsen av til-bakeløpet ennå opptrer i anodestrømmen i røret. Koplingen ifølge oppfinnelsen er karakterisert ved at der parallelt med viklingen ligger et integrerende nettverk og at en del av utgangsspenningen fra dette nettverk tilføres rørets styregitter i serie med spenningen over kondensatoren. Denne utgangsspenning tjener som motkop-lingsspenning for røret i tilstrekkelig grad The usual coils for the vertical deflection in a television receiver behave during the return of the deflection current almost like an opposite. If these coils are connected to the anode circuit of a tube above a transformer, then the simplified connection diagram consists of this anode impedance in a first approximation of the transformer's primary inductance, to which the parallel-connected coil's resistance is transformed to the transformer's primary side. A sawtooth-shaped current flows through the coil and thus also through the resistor, and as the voltage across the resistor is equal to the voltage across the transformer's primary inductance, a sawtooth voltage appears in this inductance. A parabolic current therefore flows through this inductance. The tube's anode current must therefore contain a sawtooth-shaped and a parabolic component. To produce these two components, it is often possible to supply the almost linear sawtooth voltage that occurs across the capacitor directly to the tube's control grid, when this tube has a suitable curved anode current-grid voltage curve and if the desired parabolic correction does not have to be such that a minimum of the sawtooth voltage after the beginning of the to-back stroke still appears in the anode current in the tube. The coupling according to the invention is characterized in that there is an integrating network parallel to the winding and that part of the output voltage from this network is supplied to the tube's control grid in series with the voltage across the capacitor. This output voltage serves as counter-voltage for the tube to a sufficient extent
å motvirke toleranser i kurvens krumning og forstyrrelser i anodestrømmen som føl-ge av mikrofoni i røret. Det skal bemerkes at det allerede er foreslått i denne hensikt å bruke en motkoplingsspennlng som imidlertid bare tas ut direkte fra transforma- to counteract tolerances in the curvature of the curve and disturbances in the anode current as a result of microphonics in the tube. It should be noted that it has already been proposed for this purpose to use a feedback voltage which, however, is only taken directly from the transformer
torviklingen. Avbøyningsspolens impedans forholder seg i løpet av et avbøyningssveip imidlertid nesten som en motstand, men i løpet av avbøyningstilbakeløpet er også the peat winding. However, during a deflection sweep, the impedance of the deflection coil behaves almost like a resistance, but during the deflection return is also
spolens induktivitet av viktighet og forår- the inductance of the coil of importance and cause-
saker en spenningspuls. Denne spennings- cases a pulse of tension. This voltage
puls blir ved de kjente koplinger likeledes tilført styregitterkretsen og med et fortegn som øker styregitterets spenning. Sperrin- pulse is likewise supplied to the control grid circuit with the known connections and with a sign that increases the control grid's voltage. Sperrin-
gen av rørets anodestrøm under innvirk- gene of the tube's anode current under the influence of
ningen av tilbakeslaget av kondensatorspenningen blir herved vanskeliggjort, hvis ikke umuliggjort. The reversal of the capacitor voltage is thereby made difficult, if not impossible.
Ved koplingen ifølge oppfinnelsen blir motkoplingsspenningen imidlertid tatt ut over et integrerende nettverk, som motvir- In the connection according to the invention, however, the reverse connection voltage is taken out via an integrating network, which counteracts
ker den differensierende virkning av av-bøyningsspolen i løpet av tilbakeslaget, da pulsen oppstår. Når tidskonstanten for det- ker the differentiating action of the deflection coil during the recoil, when the pulse occurs. When the time constant for the
te nettverk er lik tidskonstanten for av-bøyningsspolen slik at spolen og nettverket derfor er duale, opptrer i styregitterkret- te network is equal to the time constant of the deflection coil so that the coil and the network are therefore dual, appear in the control grid circuit
sen ingen spenningspuls i løpet av tilbake-løpet. then no voltage pulse during the return run.
Et utførelseseksempel på oppfinnelsen An embodiment of the invention
skal forklares nærmere under henvisning til tegningen. shall be explained in more detail with reference to the drawing.
Kondensatoren 1 ligger i en ladekrets The capacitor 1 is located in a charging circuit
som videre inneholder seriekoplingen av viklingen 2 og motstanden 3. Parallelt med viklingen 2 ligger et integrerende nettverk som består av seriekoplingen av motstan- which further contains the series connection of the winding 2 and the resistor 3. Parallel to the winding 2 is an integrating network consisting of the series connection of the resistor
den 4, kondensatoren 5 og kondensatoren 6. Kondensatorene 1 og 6 ligger i serie i styregitterkretsen for røret 7. Mellom ka- the 4, the capacitor 5 and the capacitor 6. The capacitors 1 and 6 are located in series in the control grid circuit for the tube 7. Between ca-
toden i dette rør og jord ligger den vanlige parallellkopling av en motstand 8 og en kondensator 9 for frembringelse av en ne- tod in this pipe and ground is the usual parallel connection of a resistor 8 and a capacitor 9 for generating a ne-
gativ gitterforspenning som over motstan- positive grid bias that over resist-
den 10 tilføres styregitteret i røret 7. I det- the 10 is supplied to the control grid in the tube 7. In that-
te rørs anodekrets ligger pirmærviklingen 11 av transformatoren 12. Over sekundær-viklingen 13 mates den vertikale avbøy-ningsspole 14. Viklingen 2 danner en tred- tube's anode circuit is the primary winding 11 of the transformer 12. The vertical deflection coil 14 is fed above the secondary winding 13. The winding 2 forms a three-
je vikling på transformatoren 12. je winding on the transformer 12.
Ved opplading av kondensatoren 1 øker spenningen på styregitteret i røret 7 slik at anodestrømmen i røret tiltar og anode-spenningen i røret avtar. Viklingsretningen for viklingen 2 er valgt slik at den spen- When charging the capacitor 1, the voltage on the control grid in the tube 7 increases so that the anode current in the tube increases and the anode voltage in the tube decreases. The winding direction for winding 2 is chosen so that the
ning som induseres i denne vikling er mot- induced in this winding is counter-
satt den spenning som opptrer over kondensatoren 1. Når det oppstår en sagtannspenning over transformatorens 12 primæ- set the voltage that occurs across capacitor 1. When a sawtooth voltage occurs across the transformer's 12 primary
re induktivitet, så er dette også tilfelle med spenningen over viklingen 2. Som følge herav blir i kondensatorens 1 ladekrets spenningen over kondensatoren 1 enten tilnærmet utlignet eller overutliknet, slik at der over kondensatoren 1 opptrer en til- re inductance, this is also the case with the voltage across the winding 2. As a result, in the charging circuit of the capacitor 1, the voltage across the capacitor 1 is either approximately equalized or over equalized, so that an additional
nærmet linjær eller noe steilere enn linjær med tiden tiltakende spenning. Den over spolen 2 opptredende sagtannspenning inte - nearly linear or somewhat steeper than linear with increasing voltage over time. The sawtooth voltage appearing across the coil 2 does not -
greres i nettverket 4, 5, 6 og den del av den integrerende spenning som opptrer over kondensatoren 6 blir gjort virksom i rørets 7 styregitterkrets. Hvis motstanden i av-bøyningsspolen er R ohm og induktivite- is distributed in the network 4, 5, 6 and the part of the integrating voltage that occurs across the capacitor 6 is made active in the tube's 7 control grid circuit. If the resistance in the deflection coil is R ohm and the inductance
ten i avbøyningsspolen L Henry, og verdien av motstanden 4 lik R.i ohm og kondensa- in the deflection coil L Henry, and the value of the resistance 4 equal to R.i ohms and condensa-
torene 5 og 6 har kapasitetene Cr, henholds- terminals 5 and 6 have capacities Cr, according to
vis C(i, så er det gunstig når tidskonstanten L/R for avbøyningsspolen er tilnærmet lik tidskonstanten RuCr,.Cu show C(i, then it is favorable when the time constant L/R of the deflection coil is approximately equal to the time constant RuCr,.Cu
for det integrerende nettverk. for the integrating network.
Cr, + Ce, Cr, + Ce,
Ladekretsen for kondensatoren 1 inne- The charging circuit for the capacitor 1 in-
holder et rør 15. Dette rør er på kjent måte koplet som sperreoscillator ved hjelp av en tilbakekopling av skjermgitterkretsen til styregitterkretsen over en transforma- holds a tube 15. This tube is connected in a known manner as a blocking oscillator by means of a feedback of the screen grid circuit to the control grid circuit via a transformer
tor 16. Denne kopling er fortrinnsvis såle- tor 16. This coupling is preferably sole-
des dimensjonert at ved utladning av kondensatoren 1 synker spenningen over kondensatoren nesten til 0. so dimensioned that when capacitor 1 is discharged, the voltage across the capacitor drops almost to 0.
Som det fremgår av figuren er lade- As can be seen from the figure, charging
kretsen og utladningskretsen for konden- the circuit and the discharge circuit for condensa-
satoren 1 skilt fra hverandre. the sator 1 separated from each other.
Claims (2)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT1152265A AT282285B (en) | 1965-12-22 | 1965-12-22 | Zinc phosphate coatings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO116743B true NO116743B (en) | 1969-05-12 |
Family
ID=3629193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO166092A NO116743B (en) | 1965-12-22 | 1966-12-21 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3520737A (en) |
| AT (1) | AT282285B (en) |
| BE (1) | BE691484A (en) |
| FR (1) | FR1505997A (en) |
| GB (1) | GB1164639A (en) |
| NL (1) | NL6617945A (en) |
| NO (1) | NO116743B (en) |
| SE (1) | SE340931B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1368845A (en) * | 1972-04-17 | 1974-10-02 | Pyrene Chemical Services Ltd | Processes and composition for the formation of phosphate coatings |
| DE2327304C3 (en) * | 1973-05-29 | 1982-01-21 | Metallgesellschaft Ag, 6000 Frankfurt | Process for applying phosphate coatings to metals |
| US4140551A (en) * | 1977-08-19 | 1979-02-20 | Heatbath Corporation | Low temperature microcrystalline zinc phosphate coatings, compositions, and processes for using and preparing the same |
| US4681641A (en) * | 1982-07-12 | 1987-07-21 | Ford Motor Company | Alkaline resistant phosphate conversion coatings |
| DE3325974A1 (en) * | 1983-07-19 | 1985-01-31 | Gerhard Collardin GmbH, 5000 Köln | METHODS AND UNIVERSALLY APPLICABLE MEANS FOR THE ACCELERATED APPLICATION OF PHOSPHATE COATINGS ON METAL SURFACES |
| JPS60238486A (en) * | 1984-05-09 | 1985-11-27 | Nippon Denso Co Ltd | Formation of phosphate conversion coating on steel surface |
| EP0327153B1 (en) * | 1988-02-03 | 1993-08-04 | Metallgesellschaft Ag | Process for applying phosphate coatings to metals |
| US5229215A (en) * | 1989-09-25 | 1993-07-20 | The Goodyear Tire & Rubber Company | Brass-plated steel wire |
| WO2017214782A1 (en) * | 2016-06-12 | 2017-12-21 | 深圳市恒兆智科技有限公司 | Phosphating agent for wire drawing, metal piece and method for coating treatment of surface thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT532546A (en) * | 1955-04-20 | 1900-01-01 | ||
| DE1176446B (en) * | 1961-12-07 | 1964-08-20 | Hoechst Ag | Method and means for applying phosphate layers to metal surfaces |
| AT258667B (en) * | 1965-01-25 | 1967-12-11 | Plaut Fa J | Process for the production of coatings from zinc phosphate |
-
1965
- 1965-12-22 AT AT1152265A patent/AT282285B/en active
-
1966
- 1966-12-20 BE BE691484D patent/BE691484A/xx not_active IP Right Cessation
- 1966-12-21 NL NL6617945A patent/NL6617945A/xx unknown
- 1966-12-21 NO NO166092A patent/NO116743B/no unknown
- 1966-12-21 SE SE17544/66A patent/SE340931B/xx unknown
- 1966-12-22 US US603729A patent/US3520737A/en not_active Expired - Lifetime
- 1966-12-22 FR FR88548A patent/FR1505997A/en not_active Expired
- 1966-12-22 GB GB57420/66A patent/GB1164639A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1505997A (en) | 1967-12-15 |
| US3520737A (en) | 1970-07-14 |
| NL6617945A (en) | 1967-06-23 |
| AT282285B (en) | 1970-06-25 |
| BE691484A (en) | 1967-05-29 |
| GB1164639A (en) | 1969-09-17 |
| SE340931B (en) | 1971-12-06 |
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