DE606670C - Device for generating a direct current, the magnitude of which is inversely proportional to the amplitude value of an alternating voltage which is fed to the alternating current circuit of a single-phase rectifier in full-wave circuit - Google Patents
Device for generating a direct current, the magnitude of which is inversely proportional to the amplitude value of an alternating voltage which is fed to the alternating current circuit of a single-phase rectifier in full-wave circuitInfo
- Publication number
- DE606670C DE606670C DET39923D DET0039923D DE606670C DE 606670 C DE606670 C DE 606670C DE T39923 D DET39923 D DE T39923D DE T0039923 D DET0039923 D DE T0039923D DE 606670 C DE606670 C DE 606670C
- Authority
- DE
- Germany
- Prior art keywords
- voltage
- circuit
- alternating
- inversely proportional
- generating
- 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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
Description
Es sind in der Technik in einigen Fällen elektrische Systeme von Interesse, bei denen die zugeführte Spannung oder der zugeführte Strom der abgegebenen Spannung oder dem abgegebenen Strom umgekehrt proportional ist» die also kurz gesagt eine Charakteristik der Formj> = ajx haben, wobei y und χ Eingangs- bzw. Ausgangsstrom oder -spannung Sind und α eine Konstante ist. So gibt es z. B.In some technical cases, electrical systems are of interest in which the voltage or current supplied is inversely proportional to the voltage or current output »which, in short, have a characteristic of the form j> = ajx , where y and χ Input or output current or voltage are and α is a constant. So there are z. B.
Einrichtungen zur Übertragung bewegter Bilder (Fernseher), bei denen der gelieferte Strom umgekehrt proportional der Helligkeit des zu übertragenden Bildes ist, und andere, bei denen die Helligkeit des empfangenen Bildes umgekehrt proportional zu der ankommenden Spannung ist. In derartigen Fällen ist ein System der oben angegebenen Charakteristik notwendig, um die direkte Proportionalität wiederherzustellen.Devices for the transmission of moving images (televisions) where the supplied Current is inversely proportional to the brightness of the image to be transmitted, and others, where the brightness of the received image is inversely proportional to that of the incoming Tension is. In such cases, a system has the characteristics given above necessary to restore direct proportionality.
Die Erfindung benutzt Systeme, deren charakteristische Funktion nur in einem sehr kleinen Intervall um den Nullpunkt herum von Null verschiedene Werte aufweist (s. Abb. 1), also z.B. ein System, das nur dann'stromdurchlässig ist, wenn die angelegte Spannung dem absoluten Betrag nach kleiner als ein gewisser Wert v0 ist. Die Herstellung solcher Systeme wird weiter unten behandelt. Legt man an ein derartiges System eine sinusförmige Wechselspannung ν = B · sin (nt), so wird dieses System nur in denjenigen Zeiten von einem Strom durchflossen werden, in denen sich der Momentanwert der Wechselspannung zwischen — V0 und -\-v0 befindet. Wählt man nun dieses Intervall genügend klein gegen die Amplitude E, so kann man die Änderungsgeschwindigkeit q der Spannung ν in dem ganzen Intervall als konstant, und zwar gleich der Änderungsgeschwindigkeit im Punkte O ansehen. Es ist alsoThe invention uses systems whose characteristic function has values that differ from zero only in a very small interval around the zero point (see Fig. 1), for example a system which is only permeable to current when the applied voltage corresponds to the absolute value after is less than a certain value v 0 . The manufacture of such systems is discussed below. If a sinusoidal alternating voltage ν = B · sin (nt) is applied to such a system, a current will flow through this system only in those times when the instantaneous value of the alternating voltage is between - V 0 and - \ - v 0 . If this interval is chosen to be sufficiently small compared to the amplitude E, then the rate of change q of the voltage ν can be regarded as constant over the entire interval, namely equal to the rate of change at point O. So it is
dv ■ _ dv ■ _
q = -=— = h · η - cos nt ttt q = - = - = h η - cos nt ttt
in diesem Intervall konstant, und zwar gleich E' n. constant in this interval, namely equal to E 'n.
Die Zeit, während der sich ν in dem Intervall (—V0, + z/0) befindet, ist umgekehrt proportional zu dieser Geschwindigkeit, nämlichThe time during which ν is in the interval (- V 0 , + z / 0 ) is inversely proportional to this speed, namely
— "* für jeden Durchgang der Spannung durch. O, oder, bezogen auf 1 see, 2 /-mal- "* for each passage of the tension through. O, or, based on 1 see, 2 / times
die Frequenz der zuist), nämlichthe frequency of the zuist), namely
soviel (wobei f =so much (where f =
Wechsel spannungAlternating voltage
geführtenled
2 V0 2 V 0
E · πE · π
Der mittlere Gleichstrom, der durch das System fließt, ist nun proportional der Zeit, während welcher der Momentanwert derThe mean direct current flowing through the system is now proportional to the time during which the instantaneous value of
Spannung ν im Laufe einer Sekunde in dem kritischen Intervall liegt. Dieser Strom istVoltage ν lies in the critical interval over the course of a second. This stream is
also proportional zu -ψ-, d. h. umgekehrt pro-thus proportional to -ψ-, i.e. inversely pro-
- 5 portional zu der Amplitude B, unabhängig von der Frequenz der Wechselspannung v. Damit ist der gewünschte funktionale Zusammenhang zwischen der Amplitude einer Eingangswechselspannung und dem gleichgerichteten Strom hergestellt.- 5 proportional to the amplitude B, regardless of the frequency of the alternating voltage v. This creates the desired functional relationship between the amplitude of an input AC voltage and the rectified current.
Während bisher zur Erzeugung eines einer zugeführten Wechselspannung umgekehrt proportionalen Gleichstromes nur besonders ausgebildete Kathodenstrahlrelais (Braunsche Röhren) bekanntgeworden sind, wird durch die vorliegende Erfindung die Möglichkeit geschaffen, diese Wirkung auch bei Verwendunggewöhnlicher Gleichrichterstrecken (z.B. Vakuumgleichrichter, Kristalldetektoren, Sperrschicht- oder elektrolytische Gleichrichter) zu erzielen; diese Vorrichtungen sind einfacher, billiger und betriebssicherer als die bekannten Kathodenstrahlrelais.While previously reversed to generate an alternating voltage supplied proportional direct current only specially designed cathode ray relays (Braunsche Tubes) have become known, the present invention makes the possibility created, this effect even when using ordinary Rectifier lines (e.g. vacuum rectifiers, crystal detectors, junction or electrolytic rectifiers) to achieve; these devices are simpler, cheaper and more reliable than that well-known cathode ray relay.
Ein Ausführungsbeispiel ist in Abb. 2 dargestellt. Hierin bedeuten 8 und 9 zwei gleiche Widerstände, 10 und 11 Gleichrichter beliebiger Art, z. B. Vakuumröhren, Kristalldetektoren, elektrolytische oder Trockengleichrichter. Die Gleichrichter 10 und 11 stellen zusammen mit den Widerständen 8 und 9 eine Vollweggleichrichterschaltung für eine Spannung dar, die an den Punkten a, b zugeführt wird. Der gleichgerichtete Strom fließt durch einen Widerstand 12. Die an den Enden c, d dieses Widerstandes erzeugte Spannung hat immer dasselbe Vorzeichen, unabhängig von der Richtung der an a, b angelegten Spannung, und sie ist dann und nur dann gleich o, wenn die Spannung an a, b gleich ο islt. In dem dargestellten Beispiel ist die Spannung des Punktes c gegen die des Punktes d stets Ξ> ο. Legt man nun an die Punkte c, d ein weiteres Ventil 13, und zwar mit der Kathode an c, und in Reihe damit eine kleine Batterie 14 mit dem negativen Pol an d und einen Verbraucher 15, so kann durch das Ventil 13 nur dann Strom fließen, wenn die Spannung von c gegen d kleiner als die Spannung der Batterie 14 ist; denn bei größeren Spannungen zwischen c und d wird die algebraische Summe aus der Batteriespannung 14 und der Spannung c, d negativ, so daß der Verbraucher 15 keinen Strom erhält.An exemplary embodiment is shown in FIG. Here 8 and 9 mean two equal resistors, 10 and 11 rectifiers of any type, e.g. B. vacuum tubes, crystal detectors, electrolytic or dry rectifiers. The rectifiers 10 and 11 together with the resistors 8 and 9 represent a full-wave rectifier circuit for a voltage which is fed to the points a, b. The rectified current flows through a resistor 12. The voltage generated at the ends c, d of this resistor always has the same sign, regardless of the direction of the voltage applied to a, b , and it is equal to o if and only if the voltage at a, b equal ο islt. In the example shown, the voltage of point c against that of point d is always Ξ> ο. If a further valve 13 is now placed at points c, d , with the cathode at c, and in series with it a small battery 14 with the negative pole at d and a consumer 15, only then can current flow through valve 13 flow when the voltage from c to d is less than the voltage of the battery 14; because at higher voltages between c and d , the algebraic sum of the battery voltage 14 and the voltage c, d becomes negative, so that the consumer 15 receives no current.
Andererseits ist aber die Spannung c, d dann und nur dann kleiner als die Spannung der Batterie 14, wenn die Spannung a, b in einem bestimmten kleinen Intervall um ο herum liegt. Zwischen der Spannung a, b und dem Strom durch das Ventil 13 besteht also wieder der gesuchte Zusammenhang, dessen Art in der Abb. 1 wiedergegeben ist.On the other hand, however, the voltage c, d is then and only then smaller than the voltage of the battery 14 when the voltage a, b is around o in a certain small interval. The relationship sought, the type of which is shown in FIG. 1, thus again exists between the voltage a, b and the current through the valve 13.
An Stelle von Ventilen können auch gesteuerte Entladungsröhren verwendet werden.Controlled discharge tubes can also be used in place of valves.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DET39923D DE606670C (en) | 1931-12-13 | 1931-12-13 | Device for generating a direct current, the magnitude of which is inversely proportional to the amplitude value of an alternating voltage which is fed to the alternating current circuit of a single-phase rectifier in full-wave circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DET39923D DE606670C (en) | 1931-12-13 | 1931-12-13 | Device for generating a direct current, the magnitude of which is inversely proportional to the amplitude value of an alternating voltage which is fed to the alternating current circuit of a single-phase rectifier in full-wave circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE606670C true DE606670C (en) | 1934-12-07 |
Family
ID=7560624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DET39923D Expired DE606670C (en) | 1931-12-13 | 1931-12-13 | Device for generating a direct current, the magnitude of which is inversely proportional to the amplitude value of an alternating voltage which is fed to the alternating current circuit of a single-phase rectifier in full-wave circuit |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE606670C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE760998C (en) * | 1940-07-18 | 1954-06-08 | Siemens Schuckertwerke A G | Voltage regulating device with suppressed regulating action for direct current circuits |
-
1931
- 1931-12-13 DE DET39923D patent/DE606670C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE760998C (en) * | 1940-07-18 | 1954-06-08 | Siemens Schuckertwerke A G | Voltage regulating device with suppressed regulating action for direct current circuits |
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