AT114283B - Discharge tube with hot cathode and gas filling. - Google Patents

Discharge tube with hot cathode and gas filling.

Info

Publication number
AT114283B
AT114283B AT114283DA AT114283B AT 114283 B AT114283 B AT 114283B AT 114283D A AT114283D A AT 114283DA AT 114283 B AT114283 B AT 114283B
Authority
AT
Austria
Prior art keywords
discharge tube
gas filling
hot cathode
tube according
anode
Prior art date
Application number
Other languages
German (de)
Inventor
Gillis Dr Holst
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Application granted granted Critical
Publication of AT114283B publication Critical patent/AT114283B/en

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  • Gas-Filled Discharge Tubes (AREA)
  • Lasers (AREA)

Description

  

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  Entladungsröhre mit Glühkathode und Gasfüllung. 
 EMI1.1 
 

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   Während der Halbperiode, in der die Hilfskathode in bezug auf die Hauptkathode negativ ist, wird der Stromdurchgang infolge des Umstandes verhindert, dass die Anode ein niedrigeres Potential hat als die Hilfskathode, so dass die Elektronenaussendung dieser Kathode verhindert wird bzw. die ausgesandten Elektronen zur Hilfskathode zurückkehren. 



   Die Erfindung lässt sich auch an Entladungsröhren zum Gleichrichten eines mehrphasigen Wechselstromes anwenden. In diesem Fall ist in der. Nähe jeder Anode eine Hilfskathode angeordnet, welche die beschriebene Funktion hat. 



   PATENT-ANSPRÜCHE :
1. Entladungsröhre mit Glühkathode und Gasfüllung, die sich besonders zum   Gleichrichten   von Wechselstrom eignet, dadurch gekennzeichnet, dass in der Nähe von einer oder von mehreren der Anoden eine Hilfsglühkathode angeordnet ist.



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  Discharge tube with hot cathode and gas filling.
 EMI1.1
 

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   During the half cycle in which the auxiliary cathode is negative with respect to the main cathode, the passage of current is prevented due to the fact that the anode has a lower potential than the auxiliary cathode, so that the emission of electrons from this cathode or the emitted electrons to the auxiliary cathode is prevented to return.



   The invention can also be applied to discharge tubes for rectifying a multiphase alternating current. In this case, the. An auxiliary cathode is arranged near each anode and has the function described.



   PATENT CLAIMS:
1. Discharge tube with hot cathode and gas filling, which is particularly suitable for rectifying alternating current, characterized in that an auxiliary hot cathode is arranged in the vicinity of one or more of the anodes.

Claims (1)

2. Entladungsröhre nach Anspruch l, dadurch gekennzeichnet, dass die Anode (3) bzw. die Anoden die Hilfskathode bzw. die Hilfskathoden (4) umgibt bzw. umgeben. 2. Discharge tube according to claim l, characterized in that the anode (3) or the anodes surrounds or surround the auxiliary cathode or the auxiliary cathodes (4). 3. Entladungsröhre nach Anspruch 2, dadurch gekennzeichnet, dass eine Hilfskathode innerhalb eines sie umgebenden Körpers angeordnet ist, von dem die Anode geometrisch einen Teil bildet aber elektrisch isoliert ist. 3. Discharge tube according to claim 2, characterized in that an auxiliary cathode is arranged within a body surrounding it, of which the anode geometrically forms a part but is electrically insulated. 4. Entladungsröhre nach Anspruch 3, dadurch gekennzeichnet, dass der gegen die Anode isolierte Teil des Körpers mit einem eigenen Stromzuführungsdraht versehen ist. 4. Discharge tube according to claim 3, characterized in that the part of the body isolated from the anode is provided with its own power supply wire. 5. Entladungsröhre nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass in Reihe mit der Hilfskathode ein Widerstand geschaltet ist. EMI2.1 5. Discharge tube according to one of the preceding claims, characterized in that a resistor is connected in series with the auxiliary cathode. EMI2.1
AT114283D 1927-04-11 1928-04-06 Discharge tube with hot cathode and gas filling. AT114283B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL114283X 1927-04-11

Publications (1)

Publication Number Publication Date
AT114283B true AT114283B (en) 1929-09-25

Family

ID=19775216

Family Applications (1)

Application Number Title Priority Date Filing Date
AT114283D AT114283B (en) 1927-04-11 1928-04-06 Discharge tube with hot cathode and gas filling.

Country Status (1)

Country Link
AT (1) AT114283B (en)

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