Rectifying circuit adopting triode electron tube

Abstract

The utility model discloses a rectification circuit employing a triode electron tube, comprising a transformer T1, an AC device AC1, an electron tube V1 and an electron tube V2, the transformer T1 comprises a primary winding A, a secondary winding B, a secondary winding C and a secondary winding D, a screen pole A1 and a grid electrode G of the electron tube V1 are simultaneously connected with a first pin of the secondary winding B, and a second pin of the secondary winding D is connected with a second pin of the secondary winding C; and a screen electrode A1 and a grid electrode G of the electronic tube V2 are simultaneously connected with a second pin of the secondary winding B. According to the utility model, the three-pole electronic tubes with high screen electrode withstand voltage are connected into the diode for use, namely, the screen electrodes and the grid electrodes of the electronic tubes are in short circuit, so that the high-screen-voltage three-pole electronic tubes are converted into the high-screen-voltage diode, and the two converted electronic tubes form a full-wave rectification circuit; on one hand, withstand voltage of the rectifying circuit is improved, and service life is prolonged; and on the other hand, the output current value is larger than that of a common diode rectification electron tube, and when the diode rectification electron tube is applied to a sound power amplifier circuit, the control capability of a power amplifier can be improved, and the frequency response range of the power amplifier is widened.

Description

Technical Field

[0001] The utility model relates to an electron tube, in particular to a rectifier circuit using a triode electron tube. Background Art

[0002] In the tube power amplifier circuit, the tube rectifier circuit is generally a full-wave rectifier circuit composed of two diodes. The plate voltage of the tube in this rectifier circuit does not exceed AC500V. However, some high-power power amplifier circuits have higher requirements for the plate voltage of the tube. If a low-voltage rectifier tube is used for power supply, it is easy for the rectifier tube to have insufficient voltage resistance, resulting in sparks inside the tube. Long-term use will affect the life of the rectifier tube and the stability of the circuit. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a rectifier circuit using a triode electron tube.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A rectifier circuit using a triode electron tube includes a transformer T1, an AC converter AC1, an electron tube V1, and an electron tube V2. The transformer T1 includes a primary winding A, a secondary winding B, a secondary winding C, and a secondary winding D. The primary winding A is connected to the AC converter AC1. The screen A1 and grid G ​​of the electron tube V1 are simultaneously connected to the first pin of the secondary winding B. The filament pin F1 of the electron tube V1 is connected to the first pin of the secondary winding C, and the filament pin F2 of the electron tube V1 is connected to the second pin of the secondary winding C. The screen A1 and grid G ​​of the electron tube V2 are simultaneously connected to the second pin of the secondary winding B. The filament pin F1 of the electron tube V2 is connected to the first pin of the secondary winding D, and the filament pin F2 of the electron tube V2 is connected to the second pin of the secondary winding D. The center tap of the secondary winding B is grounded. The filament pin F2 of the electron tube V1 and the filament pin F1 of the electron tube V2 are simultaneously connected to output voltage.

[0006] The secondary winding B is a high-voltage winding, and the secondary windings C and D are low-voltage windings.

[0007] The electron tubes V1 and V2 are 211 / 845 / 805 electron tubes.

[0008] The beneficial effects of the present invention are as follows: the present invention adopts a triode electron tube with a high plate voltage resistance connected as a diode, that is, the plate and gate of the electron tube are short-circuited, so that the high plate voltage triode electron tube is converted into a high plate voltage diode, and a full-wave rectifier circuit is formed by two converted electron tubes. On the one hand, the withstand voltage of the rectifier circuit is improved and the service life is extended; on the other hand, the output current value is larger than that of a general diode rectifier electron tube. When applied to an audio power amplifier circuit, the control capability of the power amplifier can be improved and the frequency response range of the power amplifier can be widened. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0010] Figure 1 It is a circuit principle diagram of the utility model. DETAILED DESCRIPTION

[0011] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features therein can be combined with each other unless there is any conflict.

[0012] It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention.

[0013] Some embodiments of the present invention are described below with reference to the accompanying drawings.

[0014] Reference Figure 1A rectifier circuit using a triode electron tube includes a transformer T1, an AC converter AC1, an electron tube V1, and an electron tube V2. The transformer T1 includes a primary winding A, a secondary winding B, a secondary winding C, and a secondary winding D. The primary winding A is connected to the AC converter AC1, and the AC converter AC1 outputs a 220V AC voltage. The plate A1 and the gate G of the electron tube V1 are both connected to the first pin of the secondary winding B. The filament pin F1 of the electron tube V1 is connected to the first pin of the secondary winding C. The filament pin F2 of the electron tube V1 is connected to the second pin of the secondary winding C. The screen A1 and gate G of the electron tube V2 are simultaneously connected to the second pin of the secondary winding B. The filament pin F1 of the electron tube V2 is connected to the first pin of the secondary winding D, and the filament pin F2 of the electron tube V2 is connected to the second pin of the secondary winding D. In this embodiment, when the first pin of the secondary winding B is connected to the electron tube V1, a positive half-wave rectifier bridge is formed. When the second pin of the secondary winding B is connected to the electron tube V2, a negative half-wave rectifier bridge is formed. When the center tap of the secondary winding B is grounded, the electron tubes V1 and V2 form a full-wave rectifier bridge, improving the rectification effect. When the filament pin F2 of the electron tube V1 and the filament pin F1 of the electron tube V2 are simultaneously connected, a voltage is output. The rectified DC high voltage is output from the cathodes (filament pin F2 of the electron tube V1 and filament pin F1 of the electron tube V2), conveniently providing voltage to electronic devices.

[0015] In this embodiment, the electron tubes V1 and V2 are 211 / 845 / 805 tubes. A triode with a high plate-voltage withstand voltage is used in conjunction with a diode. Specifically, the plate and gate of the tube are short-circuited, transforming the high-plate-voltage triode into a high-plate-voltage diode. The two transformed tubes form a full-wave rectifier circuit. This improves the withstand voltage of the rectifier circuit, extending its service life. Furthermore, it produces a higher output current than conventional diode rectifier tubes. Application in audio amplifier circuits can enhance the amplifier's controllability and broaden its frequency response.

[0016] Secondary winding B is a high-voltage winding, while secondary windings C and D are low-voltage windings. In this embodiment, the low-voltage winding uses a voltage of 10V AC or DC and a current of 5A to power and heat the filament pins, energizing the electrons in the tube. These energized electrons escape from the filament's cathode and are then collected by the tube's screen, completing the circuit.

[0017] In this embodiment, the plate electrodes of the two electron tubes can input an AC voltage of about 900V, which is a significant improvement over the plate voltage of the prior art, thereby improving the stability of the circuit.

[0018] In this utility model, the term "plurality" refers to two or more, unless otherwise expressly defined. The term "and / or" as used herein includes any and all combinations of one or more of the relevant listed items. Terms such as "install," "connect," "connect," and "fix" should be understood broadly. For example, "connect" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0019] It should be noted that when an element is referred to as being "assembled to," "mounted to," "fixed to," or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0020] Throughout this specification, terms such as "one embodiment," "some embodiments," or "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, illustrative uses of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0021] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A rectifier circuit using a triode electron tube, characterized in that: The invention comprises a transformer T1, an alternator AC1, an electron tube V1 and an electron tube V2. The transformer T1 comprises a primary winding A, a secondary winding B, a secondary winding C and a secondary winding D. The primary winding A is connected to the alternator AC1. The screen A1 and the grid G ​​of the electron tube V1 are simultaneously connected to the first pin of the secondary winding B. The filament pin F1 of the electron tube V1 is connected to the first pin of the secondary winding C. The filament pin F2 of the electron tube V1 is connected to the second pin of the secondary winding C. The screen A1 and the grid G ​​of the electron tube V2 are simultaneously connected to the second pin of the secondary winding B. The filament pin F1 of the electron tube V2 is connected to the first pin of the secondary winding D. The filament pin F2 of the electron tube V2 is connected to the second pin of the secondary winding D. The center tap of the secondary winding B is grounded. The filament pin F2 of the electron tube V1 and the filament pin F1 of the electron tube V2 are simultaneously connected to output voltage.

2. The rectifier circuit using a triode electron tube according to claim 1, characterized in that The secondary winding B is a high voltage winding, and the secondary windings C and D are low voltage windings.

3. The rectifier circuit using a triode electron tube according to claim 1, characterized in that The electron tubes V1 and V2 are 211 / 845 / 805 electron tubes.

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