CN111464193B - 1.25kW shortwave power amplifier device - Google Patents
1.25kW shortwave power amplifier device Download PDFInfo
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- CN111464193B CN111464193B CN202010119509.3A CN202010119509A CN111464193B CN 111464193 B CN111464193 B CN 111464193B CN 202010119509 A CN202010119509 A CN 202010119509A CN 111464193 B CN111464193 B CN 111464193B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B2001/0408—Circuits with power amplifiers
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Abstract
The invention discloses a 1.25kW short-wave power amplifier device, which comprises a signal input end, a capacitor five C5, a capacitor six C6, an inductor one L1, a transformer one T1, a resistor one R1, a capacitor three C3, a capacitor five two C52, a resistor four R4, a potentiometer RP1, a resistor four R4, a capacitor seven C7, a power amplifier tube V1, a resistor five R5, an inductor two L2, a capacitor eight C8, a resistor six R6, an inductor three L3, a transformer two T2, a transformer three T3, an output coupling capacitor one, an output coupling capacitor two and a signal output end.
Description
Technical Field
The invention relates to a short-wave power amplifier device, and belongs to the technical field of communication.
Background
Communication is one of the activities necessary for human survival, long-distance communication relies on the transmission of electromagnetic signals, and transmitters are necessary devices for long-distance transmission of electromagnetic signals. The short-wave power amplifier is a key component of a short-wave communication transmitter and determines key indexes of the transmitter such as power, efficiency, linearity and reliability. It is a constant pursuit of engineers to design power amplifiers with high efficiency, high linearity, and high reliability.
The simplest, effective and common method to increase communication distance and improve interference rejection is to use a high power transmitter, such as a 20kW transmitter. The power of 20kW transmitter is synthesized by tens of power amplifier modules. The larger the power of the power amplification module is, the less the number of the power amplification modules is required, the simpler the synthesis circuit is, the fewer the power amplification tubes are, and the lower the cost of the transmitter is. The development direction of the transmitter and the development direction of the power amplifier module are high-power, high-efficiency and small-size.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides a 1.25kW short-wave power amplifier device which has high power, small volume, high efficiency and good reliability, and can obviously reduce the cost of a transmitter when used for a high-power transmitter.
The technical scheme is as follows: in order to achieve the purpose, the invention adopts the technical scheme that:
a1.25 kW short-wave power amplifier device comprises a signal input end, a capacitor five C5, a capacitor six C6, an inductor one L1, a transformer one T1, a resistor one R1, a capacitor three C3, a capacitor five two C52, a resistor four R4, a potentiometer RP1, a resistor four R4, a capacitor seven C7, a power amplifier tube V1, a resistor five R5, an inductor two L2, a capacitor eight C8, a resistor six R6, an inductor three L3, a transformer two T2, a transformer three T3, an output coupling capacitor one, an output coupling capacitor two and a signal output end, wherein the signal input end, the capacitor five C5, the inductor one L1 and the pin one of the transformer one T1 are sequentially connected, one end of the capacitor six C6 is connected to a joint between the capacitor five C5 and the inductor one L1, and the other end of the capacitor six C6 is grounded; a pin II of the transformer I T1 is grounded, one end of the capacitor III C3 is connected with a pin V of the transformer I T1, and the other end of the capacitor III C3 is grounded; one end of the first resistor R1 is connected with a pin five of the first transformer T1, the other end of the first resistor R1 is connected with a potentiometer RP1, the potentiometer RP1 is connected with a 5V power supply connector, one end of the fifth capacitor C52 is connected between the potentiometer RP1 and the 5V power supply connector, and the other end of the fifth capacitor C52 is grounded; a third pin of the first transformer T1 is connected with a first gate G1 of the power tube V1, and a fourth pin of the first transformer T1 is connected with a second gate G of the power tube V1; one end of the resistor IV R4 is connected to a connecting line between a pin III of the transformer I T1 and a gate I G1 of the power amplifier tube V1, and the other end of the resistor IV R4 is connected to a connecting line between a pin IV of the transformer I T1 and a gate II G of the power amplifier tube V1; one end of the capacitor seven C7 is connected to a connecting line between the resistor four R4 and the grid electrode one G1 of the power amplification tube V1, the other end of the capacitor seven C7 is connected with one end of the resistor five R5, the other end of the resistor five R5 is connected with one end of the inductor two L2, and the other end of the inductor two L2 is connected with a 50V power supply connector; one end of the capacitor eight C8 is connected to a connecting line between the resistor four R4 and the second grid G of the power amplifier tube V1, the other end of the capacitor eight C8 is connected with one end of the resistor six R6, the other end of the resistor six R6 is connected with one end of the inductor three L3, and the other end of the inductor three L3 is connected with a 50V power connector; a first drain electrode D1 of the power amplifier tube V1 is connected to a connecting line between a five-resistor R5 and an inductor II L2, a second drain electrode D of the power amplifier tube V1 is connected to a connecting line between a six-resistor R6 and an inductor III 3, and a first source electrode S1 and a second source electrode S of the power amplifier tube V1 are grounded; a first pin of the second transformer T2 is connected with a second drain D of the power amplifier tube V1, a second pin of the second transformer T2 is connected with a first drain D1 of the power amplifier tube V1, a third pin of the second transformer T2 is connected with an input end of the second output coupling capacitor, a fifth pin of the third transformer T3 is connected with a first drain D1 of the power amplifier tube V1, a sixth pin of the third transformer T3 is connected with a second drain D of the power amplifier tube V1, and a seventh pin of the third transformer T2 is connected with an input end of the first output coupling capacitor; the first pin of the transformer four T4 is connected with the output end of the first output coupling capacitor, the second pin of the transformer four T4 is connected with the output end of the second output coupling capacitor, the fourth pin of the transformer four T4 is grounded, and the third pin of the transformer four T4 is connected with the signal output end.
Preferably: the signal input is provided with a socket XS 1.
Preferably: the signal output end is provided with a second socket XS 2.
Preferably: the output coupling capacitor I comprises a capacitor I five C15, a capacitor I six C16, a capacitor I seven C17 and a capacitor I eight C18 which are connected in parallel.
Preferably: the output coupling capacitor II is connected with a capacitor-nine C19, a capacitor-twenty C20, a capacitor-two-C21 and a capacitor-two-C22 in parallel.
Preferably: the power amplifier tube V1 is a BLF1K85 type power amplifier tube.
Compared with the prior art, the invention has the following beneficial effects:
the invention has small volume, large power and low cost, is used on a 1kW short-wave radio station and a 20kW short-wave transmitter, and can obviously reduce the cost and the volume of the transmitter.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention is further illustrated by the following description in conjunction with the accompanying drawings and the specific embodiments, it is to be understood that these examples are given solely for the purpose of illustration and are not intended as a definition of the limits of the invention, since various equivalent modifications will occur to those skilled in the art upon reading the present invention and fall within the limits of the appended claims.
A1.25 kW short-wave power amplifier device is shown in FIG. 1 and comprises a socket I XS1, a capacitor five C5, a capacitor six C6, an inductor I L1, a transformer I T1, a resistor I R1, a capacitor three C3, a capacitor five two C52, a resistor four R4, a potentiometer RP1, a resistor four R4, a capacitor seven C7, a power amplifier tube V1, a resistor five R5, an inductor two L2, a capacitor eight C8, a resistor six R6, an inductor three L3, a transformer two T2, a transformer three T3, an output coupling capacitor I, an output coupling capacitor two and a socket two XS2, wherein the socket I XS1, the capacitor five C5, the inductor I L1 and a pin I of the transformer T1 are sequentially connected, one end of the capacitor six C6 is connected to a joint between the capacitor five C5 and the inductor I1, and the other end of the capacitor I XS is grounded; a pin II of the transformer I T1 is grounded, one end of the capacitor III C3 is connected with a pin V of the transformer I T1, and the other end of the capacitor III C3 is grounded; one end of the first resistor R1 is connected with a pin five of the first transformer T1, the other end of the first resistor R1 is connected with a potentiometer RP1, the potentiometer RP1 is connected with a 5V power supply connector, one end of the fifth capacitor C52 is connected between the potentiometer RP1 and the 5V power supply connector, and the other end of the fifth capacitor C52 is grounded; a third pin of the first transformer T1 is connected with a first gate G1 of the power tube V1, and a fourth pin of the first transformer T1 is connected with a second gate G of the power tube V1; one end of the resistor IV R4 is connected to a connecting line between a pin III of the transformer I T1 and a gate I G1 of the power amplifier tube V1, and the other end of the resistor IV R4 is connected to a connecting line between a pin IV of the transformer I T1 and a gate II G of the power amplifier tube V1; one end of the capacitor seven C7 is connected to a connecting line between the resistor four R4 and the grid electrode one G1 of the power amplification tube V1, the other end of the capacitor seven C7 is connected with one end of the resistor five R5, the other end of the resistor five R5 is connected with one end of the inductor two L2, and the other end of the inductor two L2 is connected with a 50V power supply connector; one end of the capacitor eight C8 is connected to a connecting line between the resistor four R4 and the second grid G of the power amplifier tube V1, the other end of the capacitor eight C8 is connected with one end of the resistor six R6, the other end of the resistor six R6 is connected with one end of the inductor three L3, and the other end of the inductor three L3 is connected with a 50V power connector; a first drain electrode D1 of the power amplifier tube V1 is connected to a connecting line between a five-resistor R5 and an inductor II L2, a second drain electrode D of the power amplifier tube V1 is connected to a connecting line between a six-resistor R6 and an inductor III 3, and a first source electrode S1 and a second source electrode S of the power amplifier tube V1 are grounded; a first pin of the second transformer T2 is connected with a second drain D of the power amplifier tube V1, a second pin of the second transformer T2 is connected with a first drain D1 of the power amplifier tube V1, a third pin of the second transformer T2 is connected with an input end of the second output coupling capacitor, a fifth pin of the third transformer T3 is connected with a first drain D1 of the power amplifier tube V1, a sixth pin of the third transformer T3 is connected with a second drain D of the power amplifier tube V1, and a seventh pin of the third transformer T2 is connected with an input end of the first output coupling capacitor; the first pin of the transformer four T4 is connected with the output end of the first output coupling capacitor, the second pin of the transformer four T4 is connected with the output end of the second output coupling capacitor, and the first output coupling capacitor comprises a capacitor one-five C15, a capacitor one-six C16, a capacitor one-seven C17 and a capacitor one-eight C18 which are connected in parallel. The two output coupling capacitors are connected in parallel to form a first capacitor-nine-C19, a second capacitor-twenty-C20, a first capacitor-C21 and a second capacitor-C22, the four pins of the transformer four T4 are grounded, and the three pins of the transformer four T4 are connected with a second socket-three XS 2.
The power amplifier tube V1 adopts a BLF1K85 type power amplifier tube, an inductor two L2 and an inductor three L3 are feed inductors of a 50V power supply, a resistor five R5, a resistor six R6, a capacitor seven C7 and a capacitor eight C8 are negative feedback elements, a capacitor six C6, an inductor one L1, a transformer one T1 and a resistor four R4 are input impedance matching elements, a transformer two T2 and a transformer three T3 form an output impedance matching transformer, a capacitor one five C15-a capacitor two C22 form two output coupling capacitors, a transformer four T4 is a balanced-to-unbalanced transformer, 5V voltage is regulated by a potentiometer RP1 and then provides bias voltage for two grids of the power amplifier tube V1 through a resistor one R1 and a transformer one T1, a radio frequency signal is input from a socket XS1 and is output from an XS socket 2 after power amplification.
The power of the invention is 1.25kW, the gain is more than 24dB, and the efficiency is more than 60%, therefore, the invention has small volume, large power and low cost, and can obviously reduce the cost of the transmitter and the volume of the transmitter when being used on a 1kW short-wave radio station and a 20kW short-wave transmitter. The power amplifier device can save millions to thousands of yuan for enterprises by comprehensively considering the application number, the production cost and the maintenance cost of the modules.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (4)
1. The utility model provides a 1.25kW shortwave power amplifier device which characterized in that: the signal input end, the capacitor five (C5), the capacitor six (C6), the inductor one (L1), the transformer one (T1), the resistor one (R1), the capacitor three (C3), the capacitor five two (C52), the resistor four (R4), the potentiometer (RP 1), the transformer four (T4), the capacitor seven (C7), the power amplifier tube (V1), the resistor five (R5), the inductor two (L2), the capacitor eight (C8), the resistor six (R6), the inductor three (L3), the transformer two (T2), the transformer three (T3), the output coupling capacitor one, the output coupling capacitor two and the signal output end are sequentially connected, wherein the signal input end, the capacitor five (C5), the inductor one (L1) and the pin one (T1) of the transformer one (T1) are sequentially connected, and one end of the capacitor six (C6) is connected to a joint between the capacitor five (C5) and the inductor one (L1) and the other end is grounded; the pin II of the transformer I (T1) is grounded, one end of the capacitor III (C3) is connected with the pin V of the transformer I (T1), and the other end of the capacitor III (C3) is grounded; one end of the first resistor (R1) is connected with a pin five of the first transformer (T1), the other end of the first resistor (R1) is connected with a potentiometer (RP 1), the potentiometer (RP 1) is connected with a 5V power supply connector, one end of the second capacitor (C52) is connected between the potentiometer (RP 1) and the 5V power supply connector, and the other end of the second capacitor (C52) is grounded; a third pin of the first transformer (T1) is connected with a second gate (G) of the power amplifier tube (V1), and a fourth pin of the first transformer (T1) is connected with a first gate (G1) of the power amplifier tube (V1); one end of the resistor IV (R4) is connected to a connecting line between the pin III of the transformer I (T1) and the gate II (G) of the power amplification tube (V1), and the other end of the resistor IV (R4) is connected to a connecting line between the pin IV of the transformer I (T1) and the gate I (G1) of the power amplification tube (V1); one end of the capacitor seven (C7) is connected to a connecting line between the resistor four (R4) and the grid electrode I (G1) of the power amplification tube (V1), the other end of the capacitor seven (C7) is connected with one end of the resistor five (R5), the other end of the resistor five (R5) is connected with one end of the inductor two (L2), and the other end of the inductor two (L2) is connected with a 50V power supply connector; one end of the capacitor eight (C8) is connected to a connecting line between the resistor four (R4) and the grid electrode two (G) of the power amplification tube (V1), the other end of the capacitor eight (C8) is connected with one end of the resistor six (R6), the other end of the resistor six (R6) is connected with one end of the inductor three (L3), and the other end of the inductor three (L3) is connected with a 50V power connector; a drain electrode I (D1) of the power amplifier tube (V1) is connected to a connecting line between a resistor five (R5) and an inductor two (L2), a drain electrode II (D) of the power amplifier tube (V1) is connected to a connecting line between a resistor six (R6) and an inductor three (L3), and a source electrode I (S1) and a source electrode II (S) of the power amplifier tube (V1) are grounded; a first pin of the second transformer (T2) is connected with a second drain (D) of the power amplifier tube (V1), a second pin of the second transformer (T2) is connected with a first drain (D1) of the power amplifier tube (V1), a third pin of the second transformer (T2) is connected with an input end of the second output coupling capacitor, a fifth pin of the third transformer (T3) is connected with a first drain (D1) of the power amplifier tube (V1), a sixth pin of the third transformer (T3) is connected with a second drain (D) of the power amplifier tube (V1), and a seventh pin of the third transformer (T3) is connected with an input end of the first output coupling capacitor; the first pin of the fourth transformer (T4) is connected with the output end of the first output coupling capacitor, the second pin of the fourth transformer (T4) is connected with the output end of the second output coupling capacitor, the fourth pin of the fourth transformer (T4) is grounded, and the third pin of the fourth transformer (T4) is connected with the signal output end.
2. The 1.25kW short-wave power amplifier device of claim 1, characterized in that: the output coupling capacitor I comprises a capacitor I five (C15), a capacitor I six (C16), a capacitor I seven (C17) and a capacitor I eight (C18) which are connected in parallel.
3. The 1.25kW short-wave power amplifier device of claim 2, characterized in that: the output coupling capacitor II comprises a capacitor I nine (C19), a capacitor Twenty (C20), a capacitor II one (C21) and a capacitor II two (C22) which are connected in parallel.
4. The 1.25kW short-wave power amplifier device of claim 3, characterized in that: the power amplifier tube (V1) is a BLF1K85 type power amplifier tube.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010119509.3A CN111464193B (en) | 2020-02-26 | 2020-02-26 | 1.25kW shortwave power amplifier device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010119509.3A CN111464193B (en) | 2020-02-26 | 2020-02-26 | 1.25kW shortwave power amplifier device |
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| CN111464193B true CN111464193B (en) | 2021-11-23 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204131470U (en) * | 2014-09-06 | 2015-01-28 | 西安科技大学 | A kind of shortwave 4W power amplifier |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100517958C (en) * | 2006-06-08 | 2009-07-22 | 华中科技大学 | High-frequency power amplifying circuit |
| EP2545645B1 (en) * | 2010-03-09 | 2015-01-07 | Marvell World Trade Ltd. | Class ab amplifiers |
| CN102355208B (en) * | 2011-10-31 | 2014-05-07 | 武汉中元通信股份有限公司 | Broadband high-power amplifier |
| US9246441B1 (en) * | 2015-06-12 | 2016-01-26 | Nace Engineering, Inc. | Methods and apparatus for relatively invariant input-output spectral relationship amplifiers |
| US11128262B2 (en) * | 2015-06-14 | 2021-09-21 | Ronald Quan | Low voltage tube circuits |
| CN205232161U (en) * | 2015-12-22 | 2016-05-11 | 重庆电子工程职业学院 | Linear broad band power amplifier circuit structure |
| CN106656075B (en) * | 2016-12-13 | 2023-06-13 | 石家庄开发区泰顺电子通讯有限公司 | Short wave full frequency band 500W solid-state amplifier |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204131470U (en) * | 2014-09-06 | 2015-01-28 | 西安科技大学 | A kind of shortwave 4W power amplifier |
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Address after: 210002 No. 301 East Zhongshan Road, Jiangsu, Nanjing Patentee after: PANDA ELECTRONICS GROUP Co.,Ltd. Patentee after: CEC Defense Technology Co.,Ltd. Address before: 210002 No. 301 East Zhongshan Road, Jiangsu, Nanjing Patentee before: PANDA ELECTRONICS GROUP Co.,Ltd. Patentee before: NANJING PANDA HANDA TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20240311 Address after: 210046 Within Nanjing Economic and Technological Development Zone, Jiangsu Province (No. 301 Zhongshan East Road, Xuanwu District) Patentee after: PANDA ELECTRONICS GROUP Co.,Ltd. Country or region after: China Address before: 210002 No. 301 East Zhongshan Road, Jiangsu, Nanjing Patentee before: PANDA ELECTRONICS GROUP Co.,Ltd. Country or region before: China Patentee before: CEC Defense Technology Co.,Ltd. |