DE1791119C3 - Oscillator from which the output energy is taken in the event of a harmonic - Google Patents
Oscillator from which the output energy is taken in the event of a harmonicInfo
- Publication number
- DE1791119C3 DE1791119C3 DE1791119A DE1791119A DE1791119C3 DE 1791119 C3 DE1791119 C3 DE 1791119C3 DE 1791119 A DE1791119 A DE 1791119A DE 1791119 A DE1791119 A DE 1791119A DE 1791119 C3 DE1791119 C3 DE 1791119C3
- Authority
- DE
- Germany
- Prior art keywords
- harmonic
- oscillator
- fundamental wave
- circuit
- filter
- 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
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
- H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
- H03B5/1231—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier comprising one or more bipolar transistors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
- H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
- H03B5/1203—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier being a single transistor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
- H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
- H03B5/1237—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator
- H03B5/124—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the means comprising a voltage dependent capacitance
- H03B5/1243—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the means comprising a voltage dependent capacitance the means comprising voltage variable capacitance diodes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
- H03B2200/003—Circuit elements of oscillators
- H03B2200/004—Circuit elements of oscillators including a variable capacitance, e.g. a varicap, a varactor or a variable capacitance of a diode or transistor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B2201/00—Aspects of oscillators relating to varying the frequency of the oscillations
- H03B2201/02—Varying the frequency of the oscillations by electronic means
- H03B2201/0208—Varying the frequency of the oscillations by electronic means the means being an element with a variable capacitance, e.g. capacitance diode
Landscapes
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Description
etwa wie folgt. Auch beim OberwellenosziUator ist zur Aufrechterhaltung der Gruudschwmgungsfrequenz L die reaktive Belastung bei der Frequenz Jn wie im Grundwellenbetrieb einzustellen. Die ohmsche Last dagegen ist bei der Grnndschwmgung/0 ο möglichst klein zu halten, d. h. sie soll sich möglichst auf die durch die Schaltelemente hervorgerufenen unvermeidbaren Verluste beschränken. Bei der Oberschwingung/, dagegen muß die ohmsche Belastung im Kollektor-Basiskreis des Transistors einen endliehen Wert annehmen, der abhängig von der frequenz einen Verlauf hat, wie er z. B. in der Hg-J dargestellt ist und auf Grund von Messungen am Ausführungsbeispiel ermittelt wurde. In der HgJsomething like this. In the case of the harmonic oscillator too, in order to maintain the basic oscillation frequency L, the reactive load must be set at the frequency J n as in the basic wave operation. The ohmic load, on the other hand, is to be kept as small as possible with the basic oscillation / 0 ο, ie it should be limited as far as possible to the unavoidable losses caused by the switching elements. In the case of the harmonic /, however, the ohmic load in the collector base circuit of the transistor must assume a finite value that, depending on the frequency, has a course as it is, for. B. is shown in the Hg-J and was determined on the basis of measurements on the embodiment. In the HgJ
. . °Λ ,. . j._ ; i..i,»;.,Q Anteil Hieser Be- 1=. . ° Λ,. . j._; i..i, »;., Q share of Hieser Be 1 =
S£53S£rSSÄSSSS £ 53S £ rSSÄSSS
seitens der anschalteten Belastung hochohmiger und rein «"ffi^ - erscheint. Dieses Leerlaufvernai "en der Grundwellenfrequenz des Transformationsleitungsas Leerlaufverhalten im Bengen ist vor allem deshalb t der Kapazitätsvariationsbereichon the part of the switched-on load, more high-resistance and pure «" ffi ^ - appears. This idle reduction of the fundamental frequency of the transformation line as idling behavior in Bengen is mainly because of this t is the capacity variation range
ode und damit der I»^™*™? durch die Ankopplung des Belastungsode and thus the I »^ ™ * ™? by coupling the load
Wer £i
en be, den Who £ i
en be, den
gepaUl, UeUJ Cl Uli uuiuuu.. gepaUl, UeUJ Cl Uli uuiuuu ..
gehend gleichbleibende Leistung abgibt. Zur Schaffung eines solchen Verlaufs der Belastungsimpedanz dienen im wesentlichen das Bandpaßfilter BP, das vorteilhaft als Tschebyscheff-Filter mit ·"<»*< rwn verstimmten Einzelkreisen auc<"*f<"<hrt ist u dort ha.gives constant performance when going. The bandpass filter BP is essentially used to create such a profile of the load impedance, which is advantageously used as a Chebyshev filter with detuned individual circles au c < "* f <"<hrt u there ha.
[m Es ist grundsatz-Auswecbseln des Filters gegen { den Bercich einer höheren Harmon- L bei diesen höheren Frequenzen H-F-Le,- [m It is the basic principle- elimination of the filter against { the range of a higher harmonic- L at these higher frequencies HF-Le, -
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
Claims (1)
Eigenschaften begrenzt ist und ferner die in seiner Die F i g. 2 zeigt ein Ausführungsbeispiel desIn the case of very high frequencies, provision is made for a voltage source U t :, U n and U n to be built up. The transistor oscillator becomes more and more difficult because the maxi- The same purpose is served by the unspecified oscillation frequency of the transistor through its through capacitors.
Properties is limited and furthermore in its The F i g. 2 shows an embodiment of the
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1791119A DE1791119C3 (en) | 1968-09-17 | 1968-09-17 | Oscillator from which the output energy is taken in the event of a harmonic |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1791119A DE1791119C3 (en) | 1968-09-17 | 1968-09-17 | Oscillator from which the output energy is taken in the event of a harmonic |
Publications (3)
Publication Number | Publication Date |
---|---|
DE1791119A1 DE1791119A1 (en) | 1971-11-04 |
DE1791119B2 DE1791119B2 (en) | 1973-04-12 |
DE1791119C3 true DE1791119C3 (en) | 1973-10-31 |
Family
ID=5707082
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1791119A Expired DE1791119C3 (en) | 1968-09-17 | 1968-09-17 | Oscillator from which the output energy is taken in the event of a harmonic |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1791119C3 (en) |
-
1968
- 1968-09-17 DE DE1791119A patent/DE1791119C3/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1791119B2 (en) | 1973-04-12 |
DE1791119A1 (en) | 1971-11-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C3 | Grant after two publication steps (3rd publication) | ||
E77 | Valid patent as to the heymanns-index 1977 | ||
EHJ | Ceased/non-payment of the annual fee |