DE754223C - Circuit arrangement for generating sawtooth-shaped breakover voltages with a grid-controlled high vacuum charger - Google Patents

Circuit arrangement for generating sawtooth-shaped breakover voltages with a grid-controlled high vacuum charger

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Publication number
DE754223C
DE754223C DER95725D DER0095725D DE754223C DE 754223 C DE754223 C DE 754223C DE R95725 D DER95725 D DE R95725D DE R0095725 D DER0095725 D DE R0095725D DE 754223 C DE754223 C DE 754223C
Authority
DE
Germany
Prior art keywords
grid
tube
capacitor
circuit
high vacuum
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
Application number
DER95725D
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German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Opta Radio A G
Original Assignee
Opta Radio A G
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Opta Radio A G filed Critical Opta Radio A G
Application granted granted Critical
Publication of DE754223C publication Critical patent/DE754223C/en
Expired legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K4/00Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/10Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only
    • H03K4/12Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth voltage is produced across a capacitor
    • H03K4/16Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth voltage is produced across a capacitor using a single tube with positive feedback through transformer, e.g. blocking oscillator

Description

Die Erfindung betrifft eine Anordnung' zur Erzeugung von freien Kippschwingungen. Es sind Anordnungen bekanntgeworden, welche mit gasgefüllten Entladungsröhren arbeiten. Dabei wird ein Kondensator über einen Widerstand langsam aufgeladen ader entladen und über eine Glimmentladungsröhre schnell entladen bzw. aufgeladen. Der Einsatz des Emissionsstromes in der Entladeröhre ist hierbei abhängig von deren Zünd- und Läsehspannung. Falls aber die Entladung bzw. Ladung des Kondensiators über eine Hochvakuiuimröhre erfolgen soll, so' ist eine Abstimmung der Kippfrequenz durch Einstellung der Ziind- bzw. Löschspanmung nicht mehr möglich'. Eine genaue Frequenzeinhalitang macht daher Schwierigkeiten; um sie zu überwinden, sand Schaltungen bekanntgeworden, bei denen die Anode der Enitlade- bzw. Laderöbre auf dlas Gitter zuirückgekoppelt wird, wodurch erreicht wird, daß nach Einsetzen der Entladung das Potential am Gitter in positiver Richtung ansteigt. Dadurch wird ein rasches Anwachsen des Emissionsstroimes hervorgerufen, welcher wiederum ein Ansteigen des Gitterpotentials zur Folge hat, bis der Kondensator nahezu entladen ist. Hierauf erfolgt die langsame Ladung bzw. Entladung des Kondensators, bis die Spannung so weit gestiegen ist, daß der Strom in der Röhre einen, bestimmten Wert überschritten hat. Diese SchaltungThe invention relates to an arrangement for generating free tilting vibrations. Arrangements have become known which work with gas-filled discharge tubes. A capacitor is slowly charged or discharged via a resistor and quickly discharged or charged via a glow discharge tube. The use of the emission current in the discharge tube depends on its ignition and discharge voltage. However, if the capacitor is to be discharged or charged via a high vacuum tube, then 'it is no longer possible to adjust the sweep frequency by setting the ignition or extinguishing voltage'. An exact frequency range therefore makes difficulties; In order to overcome them, circuits have become known in which the anode of the charging or charging tubes is fed back to the grid, which means that after the onset of the discharge, the potential at the grid increases in a positive direction. This causes a rapid increase in the emission current, which in turn results in an increase in the grid potential until the capacitor is nearly discharged. The capacitor is then slowly charged or discharged until the voltage has risen to such an extent that the current in the tube has exceeded a certain value. This circuit

kann, wie vorstehend bereits angedeutet, sowohl so ausgebildet sein, daß die Röhre die rasche Entladung des Kondensators oder die rasche Ladung des Kondensators bewirkt.
Gegenstand der Erfindung ist eine Verbesserung an derartigen SchaWumgsanordnungen zur Erzeugung sägezahnförmiger Spannungen mit gittergesteuerter Hochvakuumlader öhre, welche einen mit annähernd'konstantem Strom entladenen Kondensator durch ihren Anodenstrom rasch lädt, wobei der Anodenkreis der Röhre auf ihren Gitterkreis derart zurückgekoppelt ist, daß ein Anwachsen des Anodenstromes eine höhere positive Gitterspannung zur Folge hat. Die Erfindung besteht darin, daß zur Erzielung eines steileren Verlaufs der Ladekurve am Verbraucher die Kippspannung am Gitter der Laderöhre und an der Belegung des Kondensators verbunden ist, welche elektrisch von der Kathode am meisten entfernt ist.
can, as already indicated above, be designed in such a way that the tube effects the rapid discharge of the capacitor or the rapid charge of the capacitor.
The subject of the invention is an improvement in such a rotary arrangement for generating sawtooth-shaped voltages with a grid-controlled high vacuum charger which rapidly charges a capacitor discharged with an almost constant current through its anode current, the anode circuit of the tube being fed back to its grid circuit in such a way that the anode current increases results in a higher positive grid voltage. The invention consists in that, in order to achieve a steeper course of the charging curve at the consumer, the breakover voltage is connected to the grid of the charging tube and to the occupancy of the capacitor which is electrically most distant from the cathode.

In der Abbildung ist eine derartige Anordnung dargestellt. Darin bedeutet ι die Hochvakuumladeröhre, welche eine Anode 2, eine Kathode 3 und ein Gitter 13 besitzt. 4 ist der Kippkondensator, 6 und 7 die Ausgangsklemmen, der Schaltung, 9 und 10 die Klemmen, an welche die Beitriebsgleiehspannutig gelegt wird. Parallel zum Kippkondensator 4 liegt in Serie mit einem Widerstand 12 und der Kopplungsspule 5 die Entlader Öhre 8, welche gegebenenfalls auch durch einen oJimschen Widerstand ersetzt werden kann. Die LaderöhreS ist in bekannter Weise so· geschaltet, daß ihr Emissionsstrom dauernd konstant, d. h. unabhängig von der Anodenspannung ist. Die Ladung des Kondensators erfolgt durch die Betriebsgleichspannung mittels der Röhre 1. Sobald bei der Entladung über Röhre 8 die Spannung am Kondensator 4 einen Wert erreicht hat, bei dem der Anodensitrom durch die Dreipoiliröbre 1 zu fließen beginnt, fließt ein Teil des Stromes der Röhre 8 durch die Röhre 1, und der Strom durch die Spule 5 nimmt ab. In der Spule 11 wird dadurch eine Spannung erzeugt, die das Gitter 13 positiver macht und dadurch .den Anodenstrom in 1 anwachsen läßt. Das Anwachsen des Anodenstromes dauert an, bis der Anodtenstrom der Röhre 1 den in der Röhre 8 überschreitet. Der Strom durch die Spule 5 wechselt dann das Vorzeichen und lädt den Kondensator 4 auf, bis der umgekehrte Strom durch 5 abnimmt und das· Potential am Gitter 13 wieder so negativ wird, daß der Anodenstrom zu fließen aufhört. Da das Potential am Gitter 13 schneller positiv wird, als an der Kathode 3 oder an der hiermit über die Spule 5 verbundenen Belegung des Kondensators 4, besitzt die Kippspannung zwischen dem Gitter 13 und der kathodenferneren Belegung des Kondensators 4 eine steilere Ladekurve als zwischen der genannten Belegung und einem anderen Punkt der Schaltung.Such an arrangement is shown in the figure. Therein ι means the high vacuum charging tube, which has an anode 2, a cathode 3 and a grid 13. 4 is the Breakover capacitor, 6 and 7 the output terminals, the circuit, 9 and 10 the terminals, to which the operating parties are connected is placed. Parallel to the breakover capacitor 4 is in series with a resistor 12 and of the coupling coil 5, the discharger eyes 8, which optionally also by an oJimschen Resistance can be replaced. The charging tube S is connected in a known manner so that their emission current is constantly constant, d. H. independent of the anode voltage is. The capacitor is charged by the DC operating voltage by means of the tube 1. As soon as it is discharged Via tube 8, the voltage on capacitor 4 has reached a value at which the anode site current through Dreipoiliröbre 1 closes begins to flow, a part of the current of the tube 8 flows through the tube 1, and the current through the coil 5 decreases. A voltage is generated in the coil 11, which Makes grid 13 more positive and thereby. The anode current in 1 can grow. The growth of the anode current continues until the anode current of tube 1 exceeds that in tube 8 exceeds. The current through the coil 5 then changes sign and charges the Capacitor 4 on until the reverse current through 5 decreases and the potential at the grid 13 again becomes so negative that the anode current stops flowing. Because the potential at the grid 13 becomes positive faster than at the cathode 3 or at the herewith via the Coil 5 connected assignment of the capacitor 4, has the breakover voltage between the grid 13 and the cathode-remote occupancy of the capacitor 4 a steeper charging curve than between the mentioned assignment and another point of the circuit.

Eine Erhöhung der Steilheit der Ladekurve ist aber für die Ablenkung des Kathodenstralhls in Braunseban Röhren in vielen Fällen durchaus erwünscht. Durch die erfindungsgemäße Schaltung gelingt es, diese Steilheit in Anordnungen, die mit Hochvakuumröhren arbeiten, wesentlich zu erhöhen.An increase in the steepness of the charging curve is, however, for the deflection of the cathode ray in brown seban tubes, quite desirable in many cases. By the invention Circuit manages this steepness in arrangements made with high vacuum tubes work to increase significantly.

Eine weitere Erhöhung der Steilheit kann dadurch erreicht werden, daß die Kopplung des Anodenkreises der Röhre 1 auf ihren Gitterkreis über einen Verstärker erfolgt.A further increase in the slope can be achieved by the coupling of the anode circle of the tube 1 on their Lattice circle takes place via an amplifier.

Claims (3)

PATENTANSPRÜCHE:PATENT CLAIMS: 1. Sehaltungsano'rdnung zur Erzeugung sägezahnförmiger Kippspannungen mit gittergesteuerter Hochvakuumladeröhre, welche einen mit annähernd konstantein Strom entladenen Kondensator durch ihren Anodenstrom lädt, wobei der Anodenkreis der Röhre auf ihren Gitterkreis derart zurückgekoppelt ist, daß ein Anwachsen des Anodenstromes eine höhere positive Gitterspannung zur Folge hat, dadurch gekennzeichnet, daß eine der Ausgangsklemmen des Kippgeräteis mit dem Gitter der genannten Röhre und die andere mit der Belegung des Kondensators verbunden ist, welche elektrisch von .der Kathode am meisten entfernt ist.1. Sehaltungsano'rdnung to generate sawtooth-shaped tilting voltages with grid-controlled high vacuum charging tube, which has an approximately constant Current charges the discharged capacitor through its anode current, with the anode circuit of the tube on its lattice circuit is fed back in such a way that an increase in the anode current results in a higher positive grid voltage Has consequence, characterized in that one of the output terminals of the tilting device connected to the grid of said tube and the other with the assignment of the capacitor, which is electrically most distant from the cathode. 2. Kippschaltung nach Anspruch 1, dadurch gekennzeichnet, daß die Rückkoppkingsspule des Gitterkreises mit einem Widerstand in Reihe geschaltet ist, wobei die Gittervorspannung für die Röhre durch den Spannungsabfall des durch den Widerstand fließenden Ent! adungs strom es des Kondensators unabhängig von dem Strom, der durch die Elektronenröhre fließt, erzeugt wird.2. flip-flop circuit according to claim 1, characterized in that the feedback coil of the grid circuit is connected in series with a resistor, wherein the grid bias for the tube due to the voltage drop of the Ent flowing through the resistor! adungs stream it of the capacitor is generated independently of the current flowing through the electron tube. 3. Kippschaltung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Rückkopplung über einen Verstärker erfolgt.3. Toggle switch according to claim 1 or 2, characterized in that the Feedback takes place via an amplifier. Zur Abgrenzung des Erfindungsgegenstands vom Stand der Technik sind im Erteilungsverfahren folgende Druckschriften in Betracht gezogen worden:To differentiate the subject matter of the invention from the state of the art, the granting procedure the following publications have been considered: Deutsche Patentschrift Nr. 564234; britische Patentschriften Nr. 400 976,German Patent No. 564234; British Patent Specification No. 400 976, 415589, 419298;
USA.-Patentschrift Nr. 1 913 449.
415589, 419298;
U.S. Patent No. 1,913,449.
Hierzu 1 Blatt Zeichnungen1 sheet of drawings © 509535 7.55© 509535 7.55
DER95725D 1935-03-08 1936-03-07 Circuit arrangement for generating sawtooth-shaped breakover voltages with a grid-controlled high vacuum charger Expired DE754223C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB733935A GB450986A (en) 1935-03-08 1935-03-08 Improvements in thermionic and like time-base circuits

Publications (1)

Publication Number Publication Date
DE754223C true DE754223C (en) 1955-08-04

Family

ID=9831215

Family Applications (1)

Application Number Title Priority Date Filing Date
DER95725D Expired DE754223C (en) 1935-03-08 1936-03-07 Circuit arrangement for generating sawtooth-shaped breakover voltages with a grid-controlled high vacuum charger

Country Status (2)

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DE (1) DE754223C (en)
GB (1) GB450986A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2442286A (en) * 1940-09-20 1948-05-25 Vickers Electrical Co Ltd Synchronized pulse producer
GB581324A (en) * 1942-06-26 1946-10-09 John Mathieson Dodds Improvements in relaxation circuits for producing electrical impulses at regular recurrence frequencies

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE564234C (en) * 1931-04-28 1932-11-15 Erich Hudec Dr Ing Arrangement for converting an alternating voltage into a synchronously running alternating voltage of lower frequency
US1913449A (en) * 1929-03-05 1933-06-13 Western Electric Co Electric oscillator
GB400976A (en) * 1932-04-04 1933-11-06 Emi Ltd Improvements relating to oscillatory electric circuits, such as may be used, for example, in connection with cathode ray devices
GB415589A (en) * 1932-12-29 1934-08-30 Tomomasa Nakashima Improvements in a device for generating currents and voltages of saw-tooth wave form
GB419298A (en) * 1933-05-05 1934-11-05 Cossor Ltd A C Improvements in time base arrangements for use in oscillographic observations and the like

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1913449A (en) * 1929-03-05 1933-06-13 Western Electric Co Electric oscillator
DE564234C (en) * 1931-04-28 1932-11-15 Erich Hudec Dr Ing Arrangement for converting an alternating voltage into a synchronously running alternating voltage of lower frequency
GB400976A (en) * 1932-04-04 1933-11-06 Emi Ltd Improvements relating to oscillatory electric circuits, such as may be used, for example, in connection with cathode ray devices
GB415589A (en) * 1932-12-29 1934-08-30 Tomomasa Nakashima Improvements in a device for generating currents and voltages of saw-tooth wave form
GB419298A (en) * 1933-05-05 1934-11-05 Cossor Ltd A C Improvements in time base arrangements for use in oscillographic observations and the like

Also Published As

Publication number Publication date
GB450986A (en) 1936-07-28

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