DE1711579U - FREQUENCY SWITCHING OF QUARTZ OSCILLATORS USING DIRECTIONAL GUIDES. - Google Patents
FREQUENCY SWITCHING OF QUARTZ OSCILLATORS USING DIRECTIONAL GUIDES.Info
- Publication number
- DE1711579U DE1711579U DE1955H0018189 DEH0018189U DE1711579U DE 1711579 U DE1711579 U DE 1711579U DE 1955H0018189 DE1955H0018189 DE 1955H0018189 DE H0018189 U DEH0018189 U DE H0018189U DE 1711579 U DE1711579 U DE 1711579U
- Authority
- DE
- Germany
- Prior art keywords
- switching
- diode
- oscillators
- frequency switching
- quartz
- 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
Landscapes
- Oscillators With Electromechanical Resonators (AREA)
Description
ΡΑ.19617£·3Ι3.ΓδΡΑ.19617 £ 3Ι3. Γ δ
m 255m 255
Frequenzumschaltung von Quarzoszillatoren mittels Richtleitern.Frequency switching of crystal oscillators using directional conductors.
Sender- und Empfängeroszillatoren von Funkgeräten und Funksprechgeräten sind vielfach guarzgesteuert. Ein Frequenzwechsel erfolgt dann durch "Umschalten der Quarze, welche die gewünschte IRrequenz "besitzen»Transmitter and receiver oscillators for radio equipment and two-way radios are often crystal controlled. A frequency change then takes place by "switching over the crystals which have the desired IRfrequency" »
Zur Vermeidung langer Zuleitungen zu den Quarzen laues der Quarzschalter räumlich zu den Quaraen .zugeordnet sein; eine Fernumsehaltung war bisher nur miirfcels Eelais, neaerdinge durch Strömstossrelais möglich» Nachteilig ist jedoch, insbesondere "bei tragbaren Funkspreehgeräten, Tolumen und Gewicht der Perns ehalt anordnung* Mit wachsender Kanal- "bzw* Frequenz^ahl wird dieser Uachteil immer fühl "barer.To avoid long leads to the crystals, the lukewarm Quartz switches are spatially assigned to the quartz; one Remote shifting was so far only minimally Eelais, neaerdinge possible through surge relays »The disadvantage is, however, in particular "For portable radio communication devices, tolumen and weight of the person holding arrangement * With increasing channel" or * Frequency this disadvantage becomes more and more noticeable.
Der Erfindung liegt_der Gedanke zugrunde, die Umschaltung der Quarze~mittels Dioden oder Eichtlei*tern ^vorzunehmen* Wesentlich hierbei ^ist, dass die Dioden "bzw* !lichtleiter ^e jääch^nlegen eine Gleichspannung in Durchlass- oder Sperrichtung als Schalter wirlgenV~~T~'~~~71TIIlI- IIZT~ The invention is based on the idea of switching the quartz crystals by means of diodes or light conductors. It is essential that the diodes or light conductors create a direct voltage in the forward or reverse direction as a switch T ~ '~~~ 7 1TIIlI- IIZT ~
In der Zeichnung ist ein Ausfuhrungsfceispiel dargestellt.An exemplary embodiment is shown in the drawing.
Aus einer Anzahl von Schwingquarzen Q1, Q2, Q, ^*» Q soll wahlweise jeweils ein Quarz in einer Oszillator-Schal— -tung mit" d«r Eöhre-Eö-schwingen. In Serie mit jedem Quarz liegt eine Diode D1* ^2* ·°3 "*** ·°ρ **"· ^n * zum Beispiel an O-Potential liegt.From a number of quartz oscillators Q 1 , Q 2 , Q, Q, a quartz is to oscillate optionally in an oscillator circuit with "d" r tube-E6. In series with each quartz there is a diode D 1 * ^ 2 * · ° 3 "*** · ° ρ **" · ^ n * is for example at O-potential.
Über die Drosseln Dr1-, Dr2» Dt-z »■·■· Dr ..- Drn wird jeder Diode über eine Schalirvorrichtung SCh1, Seh«, Sch, *.. Sch-, ..« Sch , die räumlich weit vom Oszillator entfernt liegen kann, eine gegenüber dem Potential a positive oder negative Sehaltspannung zugeführt, die den Arbeitspunkt der Diode entweder in den Durchlass- oder Sperrbereich legt. Während man der Diode D , deren zugehöriger Quarz Q schwin gen soll, .eine Schaltspannung, zuführt, dass der WiderstandVia the chokes Dr 1 -, Dr 2 » Dt-z » ■ · ■ · Dr ..- Dr n , each diode is switched via a switching device SCh 1 , Seh «, Sch, * .. Sch-, ..« Sch, die Can be spatially far away from the oscillator, a positive or negative holding voltage compared to the potential a is supplied, which puts the operating point of the diode either in the forward or blocking range. While the diode D, whose associated crystal Q is supposed to oscillate, is supplied with a switching voltage that the resistor
der Diode vernachlässigbar klein wird, wirken die durch entgegengesetzte Schaltspannung gesperrten übrigen Dioden als Unterbrechung, so dass deren zugehörige Quarze einpolig abgetrennt sind und demzufolge nicht schwingen·the diode becomes negligibly small, they work through opposite switching voltage blocked other diodes as an interruption, so that their associated crystals are single-pole disconnected and therefore do not oscillate
Es ist möglich, mit einer einzigen Sehaltspannung die Quarze mehrerer Oszillatoren gemeinsam umzuschalten.It is possible to do the with a single tension To switch crystals of several oscillators together.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1955H0018189 DE1711579U (en) | 1955-03-31 | 1955-03-31 | FREQUENCY SWITCHING OF QUARTZ OSCILLATORS USING DIRECTIONAL GUIDES. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1955H0018189 DE1711579U (en) | 1955-03-31 | 1955-03-31 | FREQUENCY SWITCHING OF QUARTZ OSCILLATORS USING DIRECTIONAL GUIDES. |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1711579U true DE1711579U (en) | 1955-11-24 |
Family
ID=32401492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1955H0018189 Expired DE1711579U (en) | 1955-03-31 | 1955-03-31 | FREQUENCY SWITCHING OF QUARTZ OSCILLATORS USING DIRECTIONAL GUIDES. |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1711579U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1090727B (en) * | 1959-08-22 | 1960-10-13 | Deutsche Bundesbahn | Frequency switching of crystal-controlled oscillators by means of semiconductor diodes |
DE1208774B (en) * | 1962-03-20 | 1966-01-13 | Philips Nv | Arrangement for monitoring a transmission system, e.g. B. a carrier frequency telephone system |
-
1955
- 1955-03-31 DE DE1955H0018189 patent/DE1711579U/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1090727B (en) * | 1959-08-22 | 1960-10-13 | Deutsche Bundesbahn | Frequency switching of crystal-controlled oscillators by means of semiconductor diodes |
DE1208774B (en) * | 1962-03-20 | 1966-01-13 | Philips Nv | Arrangement for monitoring a transmission system, e.g. B. a carrier frequency telephone system |
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