DE508173C - Device for amplifying a direct voltage or a slowly fluctuating voltage - Google Patents
Device for amplifying a direct voltage or a slowly fluctuating voltageInfo
- Publication number
- DE508173C DE508173C DEN30815D DEN0030815D DE508173C DE 508173 C DE508173 C DE 508173C DE N30815 D DEN30815 D DE N30815D DE N0030815 D DEN0030815 D DE N0030815D DE 508173 C DE508173 C DE 508173C
- Authority
- DE
- Germany
- Prior art keywords
- voltage
- circuit
- tubes
- frequency
- frequency oscillations
- 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
- 230000010355 oscillation Effects 0.000 claims description 12
- 238000004804 winding Methods 0.000 claims 3
- 239000003990 capacitor Substances 0.000 claims 2
- 230000003321 amplification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D1/00—Demodulation of amplitude-modulated oscillations
- H03D1/14—Demodulation of amplitude-modulated oscillations by means of non-linear elements having more than two poles
- H03D1/16—Demodulation of amplitude-modulated oscillations by means of non-linear elements having more than two poles of discharge tubes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/38—DC amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers
- H03F3/40—DC amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers with tubes only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Amplifiers (AREA)
Description
DEUTSCHES REICHGERMAN EMPIRE
AUSGEGEBEN AM
25. SEPTEMSER 1930ISSUED ON
SEPTEMBER 25, 1930
REICHSPATENTAMTREICH PATENT OFFICE
PATENTSCHRIFTPATENT LETTERING
M 508173 KLASSE 21 a* GRUPPE M 508173 CLASS 21 a * GROUP
N. V. Philips' Gloeilampenfabrieken in Eindhoven, Holland *)N. V. Philips' Gloeilampenfabrieken in Eindhoven, Holland *)
Einrichtung zum Verstärken einer Gleichspannung oder einer langsam fluktuierenden SpannungDevice for amplifying a direct voltage or a slow one fluctuating voltage
Patentiert im Deutschen Reiche vom 20. August 1929 abPatented in the German Empire on August 20, 1929
Die Erfindung betrifft Verstärkerschaltungen, insbesondere solche, bei denen Gleichspannungen oder langsam fluktuierende Spannungen verstärkt werden.The invention relates to amplifier circuits, in particular those in which DC voltages or slowly fluctuating tensions are amplified.
Es sind Schaltungsanordnungen bekannt, bei denen eine Gleichspannung oder eine langsam fluktuierende Spannung mit Hilfe einer Hochfrequenz- oder Zwischenfrequenzträgerschwingung, auf welche die zu verstärkende Spannung überlagert wird, auf thermionischem Wege verstärkt wird. Da diese Trägerschwingungen im Anodenstromkreis des Modulators auftreten, kann keine wesentliche Verstärkung der Niederfrequenz-Spannungen erzielt werden, weil in diesem Fall der Anodenstromkreis überlastet wird. Gegenstand der Erfindung ist eine Einrichtung, bei der die Verstärkung der Gleichspannungen dadurch erheblich erhöht werden kann, daß die Hochfrequenzschwingungen im Ausgangsstromkreis des Modulators im wesentlichen ausgeglichen werden.There are known circuit arrangements in which a DC voltage or a slowly fluctuating voltage with the help of a high frequency or intermediate frequency carrier oscillation, on which the voltage to be amplified is superimposed, is amplified in a thermionic way. There these carrier oscillations cannot occur in the anode circuit of the modulator substantial amplification of the low frequency voltages can be achieved because in this If the anode circuit is overloaded. The subject of the invention is a device in which the gain of the DC voltages can be increased significantly that the high-frequency oscillations in the Output circuit of the modulator are essentially balanced.
Nach der Erfindung wird die Gleichspannung oder die langsam fluktuierende Spannung entgegengesetzt an die Gitter zweier Entladungsröhren angelegt, die derart in Gegentaktschaltung verbunden sind, daß die im Eingangsstromkreis der Gegentaktschaltung induzierten Hoch- oder Zwischenfrequenzschwingungen im Ausgangsstromkreis ausgeglichen werden, solange die erwähnte Spannung nicht vorhanden ist.According to the invention, the direct voltage or the slowly fluctuating voltage oppositely applied to the grid of two discharge tubes which are connected in a push-pull circuit that the High or intermediate frequency oscillations induced in the input circuit of the push-pull circuit be balanced in the output circuit as long as the mentioned voltage is not present.
Außerdem wird zweckmäßig eine Schaltung verwendet, bei der ein Bruchteil der im Ausgangsstromkreis der Verstärkerschaltung auftretenden verstärkten Spannung auf die Primärseite der Verstärkerschaltung in Gegenschaltung rückgekoppelt wird, so daß eine lineare Verstärkung erzielt wird.In addition, a circuit is expediently used in which a fraction of the im Output circuit of the amplifier circuit occurring amplified voltage on the Primary side of the amplifier circuit is fed back in the opposite circuit, so that a linear gain is achieved.
Die Erfindung ist in der Zeichnung an einem schematisch dargestellten Ausführungsbeispiel näher erläutert.The invention is shown in the drawing in a schematically illustrated embodiment explained in more detail.
Die zu verstärkende Gleichspannung oder langsam fluktuierende Spannung wird an die Kontakte 9 und 10 angeschlossen, so daß mit Hilfe von gegebenenfalls regelbaren Kontakten 6 und 8 ein Teil dieser Spannung entgegengesetzt an die Gitter zweier Entladungsröhren 12 und 13 angelegt wird. Die aus einer Batterie 11 entnommene Vorspannung an diesen Gittern, die bewirkt, daß die Röhren im krummen Teil der Charakteristik ar-The DC voltage to be amplified or slowly fluctuating voltage is applied to the Contacts 9 and 10 connected so that with the help of optionally adjustable contacts 6 and 8 a part of this voltage opposite to the grids of two discharge tubes 12 and 13 is applied. The bias voltage taken from a battery 11 on these grids, which causes the tubes in the curved part of the characteristic
*) Von dem Patentsucher ist als der Erfinder angegeben worden:*) The patent seeker stated as the inventor:
Klaas Posthumits in Eindhoven, Holland.Klaas Posthumits in Eindhoven, Holland.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL680521X | 1928-09-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE508173C true DE508173C (en) | 1930-09-25 |
Family
ID=19803322
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEN30815D Expired DE508173C (en) | 1928-09-19 | 1929-08-20 | Device for amplifying a direct voltage or a slowly fluctuating voltage |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE363174A (en) |
DE (1) | DE508173C (en) |
FR (1) | FR680521A (en) |
NL (1) | NL28871C (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE744380C (en) * | 1941-07-26 | 1944-05-05 | Aeg | Arrangement for the transmission of direct voltages over direct voltage impermeable four poles |
DE748167C (en) * | 1934-10-28 | 1944-10-27 | Device for influencing regulation and control devices through small direct current voltages | |
DE886923C (en) * | 1939-05-10 | 1953-08-17 | Aeg | DC compensation amplifier |
DE968892C (en) * | 1937-10-09 | 1958-04-03 | Siemens Ag | DC voltage or DC amplifier arrangement for measuring purposes |
-
0
- BE BE363174D patent/BE363174A/xx unknown
-
1928
- 1928-09-19 NL NL42919A patent/NL28871C/xx active
-
1929
- 1929-08-20 FR FR680521D patent/FR680521A/en not_active Expired
- 1929-08-20 DE DEN30815D patent/DE508173C/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE748167C (en) * | 1934-10-28 | 1944-10-27 | Device for influencing regulation and control devices through small direct current voltages | |
DE968892C (en) * | 1937-10-09 | 1958-04-03 | Siemens Ag | DC voltage or DC amplifier arrangement for measuring purposes |
DE886923C (en) * | 1939-05-10 | 1953-08-17 | Aeg | DC compensation amplifier |
DE744380C (en) * | 1941-07-26 | 1944-05-05 | Aeg | Arrangement for the transmission of direct voltages over direct voltage impermeable four poles |
Also Published As
Publication number | Publication date |
---|---|
FR680521A (en) | 1930-05-01 |
BE363174A (en) | |
NL28871C (en) | 1933-01-16 |
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