AT79128B - Device for triggering switching processes by weak alternating currents. - Google Patents

Device for triggering switching processes by weak alternating currents.

Info

Publication number
AT79128B
AT79128B AT79128DA AT79128B AT 79128 B AT79128 B AT 79128B AT 79128D A AT79128D A AT 79128DA AT 79128 B AT79128 B AT 79128B
Authority
AT
Austria
Prior art keywords
alternating currents
switching processes
relay
triggering switching
weak alternating
Prior art date
Application number
Other languages
German (de)
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of AT79128B publication Critical patent/AT79128B/en

Links

Landscapes

  • Filters And Equalizers (AREA)

Description

  

   <Desc/Clms Page number 1> 
 
 EMI1.1 
 
 EMI1.2 
 

 <Desc/Clms Page number 2> 

 
 EMI2.1 
 



  Der Kondensator c hält den Gleichstrom vom Relais fern und macht damit das Relais   unab-   hängig von allen unbeabsichtigten   langsamen Veränderungen   des Mikrophonwiderstandes. Die Drosselspule d hat den Zweck, die der Wechselstromkurve entsprechenden Stromschwankungen derartig zu drosseln, dass durch sie keine   Einwirkung   auf das Relais R ausgeübt wird. Der Widerstand r ist derart einstellbar, dass für die bei dem jeweiligen   Verwendungszweck in Betracht   
 EMI2.2 
 phonkreis praktisch nicht mehr bemerkbar. Trotzdem üben die durch die Wechselstromerregungen des   Mikrophonrelais   bewirkten Änderungen des Mikrophonwiderstandes den ge- 
 EMI2.3 
 Drosselspule und der regelbare Widerstand den gleichen Zwecken wie bei der Anordnung nach Fig. l. 



   Die Anwendung einer besonderen Drosselspule d könnte vermieden werden, wenn man dem Relais selbst geniigend hohe Selbstinduktion gibt, um die schnellen   Stromschwankungen   abzudrosseln. Man könnte aber auch diese Stromschwankungen dadurch ohne störenden Einfluss auf das Umschalterelais machen. dass man dessen elektromagnetische oder mechanische Eigenschaften so wählt, dass eben sein Anker auf die schwachen Stromimpulse nicht anspricht. 



    PATENT-ANSPRÜCHE:  
1. Vorrichtung zur Auslösung   von Schaltvorgangpn durch schwache Wechselströme   mittels eines   Mikrophonrelais,   dadurch gekennzeichnet, dass parallel zu dem Mikrophon (m) oder zu einem Widerstand (w) des Mikrophonstromkreises ein Kondensator (c) in Serie mit einem polarisierten. neutral eingestellten Umschalterelais (R) geschaltet ist, wobei die elektrischen und   mechanischen   Eigenschaften des Umschalterelais bzw. dessen Stromkreises derart gewählt 
 EMI2.4 
 den Lade- oder Entladestrom des Kondensators nach der einen oder anderen Richtung in Tätigkeit gesetzt wird. 



   2. Vorrichtung nach Anspurch 1, dadurch gekennzeichnet, dass der   Mikrophonstromkreis   ganz oder nahezu   ineluktiol1sfrei.   dagegen der Stromkreis des Umschalterelais derart induktiv   ist. dass die schnellen Stromschwankungen ohne Wirkung auf   das   Umschalterelais   bleiben.



   <Desc / Clms Page number 1>
 
 EMI1.1
 
 EMI1.2
 

 <Desc / Clms Page number 2>

 
 EMI2.1
 



  The capacitor c keeps the direct current away from the relay and thus makes the relay independent of all unintentional slow changes in the microphone resistance. The purpose of the choke coil d is to choke the current fluctuations corresponding to the alternating current curve in such a way that they have no effect on the relay R. The resistance r is adjustable in such a way that it can be considered for the respective purpose
 EMI2.2
 phonkreis practically no longer noticeable. Nevertheless, the changes in the microphone resistance caused by the alternating current excitation of the microphone relay
 EMI2.3
 Choke coil and the adjustable resistor serve the same purposes as in the arrangement according to FIG.



   The use of a special choke coil d could be avoided if the relay itself is given a sufficiently high self-induction to choke off the rapid current fluctuations. But you could also make these current fluctuations without disturbing the changeover relay. that one chooses its electromagnetic or mechanical properties so that its armature does not respond to the weak current impulses.



    PATENT CLAIMS:
1. Device for triggering Schaltvorgangpn by weak alternating currents by means of a microphone relay, characterized in that parallel to the microphone (m) or to a resistor (w) of the microphone circuit, a capacitor (c) in series with a polarized one. neutral set changeover relay (R) is switched, the electrical and mechanical properties of the changeover relay or its circuit selected in this way
 EMI2.4
 the charging or discharging current of the capacitor is activated in one direction or the other.



   2. Device according to claim 1, characterized in that the microphone circuit is completely or almost completely free of ineluctiol. however, the circuit of the changeover relay is so inductive. that the rapid current fluctuations have no effect on the changeover relay.

Claims (1)

3. Vorrichtung nach Anspruch l. dadurch gekennzeichnet, dass in den Stromkreis des EMI2.5 3. Apparatus according to claim l. characterized in that in the circuit of the EMI2.5
AT79128D 1914-12-12 1915-12-07 Device for triggering switching processes by weak alternating currents. AT79128B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE79128X 1914-12-12

Publications (1)

Publication Number Publication Date
AT79128B true AT79128B (en) 1919-11-10

Family

ID=5638495

Family Applications (1)

Application Number Title Priority Date Filing Date
AT79128D AT79128B (en) 1914-12-12 1915-12-07 Device for triggering switching processes by weak alternating currents.

Country Status (1)

Country Link
AT (1) AT79128B (en)

Similar Documents

Publication Publication Date Title
DE1200890B (en) Flexural transducer made of disk-shaped electrostrictive material
AT79128B (en) Device for triggering switching processes by weak alternating currents.
DE634557C (en) Relay switching for converting a creeping into an instantaneous, brief switching process, in which the creeping switch is short-circuited by an auxiliary relay when it is triggered
DE574652C (en) Procedure for operating electrostatic precipitators
AT136719B (en) Record player.
DE254914C (en)
DE333066C (en) Circuit for converting direct current to alternating current by means of an electrical buzzer connected to a transformer
AT41696B (en) Circuit arrangement for electrical voltmeters of dynamometric design.
DE727627C (en) Method and device for combating crust formation in conductive containers such as steam boilers
AT132474B (en) Device for treating organisms with electric current.
AT77522B (en) Regulations for motorized arc lamps.
AT98869B (en) Receiving arrangement z. B. for AC and DC telegraphy, vibration switching, etc.
DE442417C (en) Current monitor, in particular for controlling electrical contactors for starting and regulating electric motors
AT120781B (en) Regulating resistor.
AT56205B (en) Telephone relay.
AT113595B (en) Surge arresters.
DE300102C (en)
DE428210C (en) Electromagnetic switch, especially charging switch and voltage regulator for electrical vehicle lighting systems
DE413463C (en) Circuit arrangement for Faradization inductors
AT84003B (en) Plate holder.
AT116641B (en) Switchable current transformers.
AT110471B (en) Electrical system with transformers.
AT61151B (en) Device for generating fast electrical oscillations from direct or alternating current.
DE444386C (en) Device for patient treatment with constant direct current
AT57599B (en) Device for generating moment X-rays.