Broadband linear power amplifier device

Abstract

The utility model discloses a broadband linear power amplifier device, which comprises a power amplifier mechanism and a water cooling mechanism, and is characterized in that the power amplifier mechanism comprises a water box, an attenuator, an equalizer, a two-stage driving chip and a last-stage power amplifier chip, the attenuator is in wired connection with the equalizer, the equalizer is in wired connection with the two-stage driving chip, and the two-stage driving chip is in wired connection with the final-stage power amplifier chip, and the water cooling mechanism comprises an annular channel suspended at the top of the water box, an annular rotating disc attached to the bottom of an inner cavity of the annular channel and a fan connected with the annular rotating disc. According to the utility model, cooling water in the water box penetrates through the top of the water box and cools all electrical components, then the water injector injects liquid water in the water box into the pipe body connected with the water injector, and then the annular turntable drives the fan to rotate under the impact of water flow, so that the air cooling area of the fan is increased, the structure in the power amplifier mechanism is prevented from being overheated, and the device works more stably.

Description

Technical Field

[0001] This utility model relates to the field of power amplifier technology, specifically a broadband linear power amplifier device. Background Technology

[0002] Broadband does not have a very strict definition. Generally speaking, it is the bandwidth required for the transmission of various media that people can perceive over the network, so it is also a dynamic and evolving concept.

[0003] The broadband currently in use suffers from unstable output during normal times, resulting in a poor user experience. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows:

[0006] A broadband linear power amplifier device includes a power amplifier mechanism and a water cooling mechanism. The power amplifier mechanism includes a water box, an attenuator, an equalizer, a two-stage driver chip, and a final-stage power amplifier chip mounted on the top of the water box. The attenuator is wired to the equalizer, the equalizer is wired to the two-stage driver chip, and the two-stage driver chip is wired to the final-stage power amplifier chip. The water cooling mechanism includes an annular channel suspended on the top of the water box, an annular turntable fitted to the bottom of the inner cavity of the annular channel, a fan connected to the annular turntable, two connecting channels connected and communicating with the annular channel, a tube connecting the water box and the connecting channels, and a water injector connected to the tube near the left side of the water box. The water injector is embedded on one side of the water box.

[0007] By adopting the above technical solution, the cooling water in the water box passes through the top of the water box to cool the electrical components. Then, the water injector injects the liquid water in the water box into the connected pipe. Under the impact of the water flow, the annular turntable rotates with the fan, increasing the fan's air-cooling area and preventing the structure in the power amplifier mechanism from overheating, making the device work more stably.

[0008] In a preferred embodiment, the present invention can be further configured such that the attenuator, equalizer, two-stage driver chip, and final stage power amplifier chip are arranged in a ring with equal spacing, and the fan is movably located on top of the equalizer.

[0009] In a preferred embodiment, the present invention can be further configured such that the pipe body is connected to the interior of the annular channel via a connecting channel, and the pipe body is connected to the interior of the water box.

[0010] In a preferred embodiment, the present invention can be further configured such that a sealing plug is inserted into the front side of the water box, and the sealing plug is close to the right side wall of the water box.

[0011] In a preferred embodiment, the present invention can be further configured such that: an outer baffle ring and an inner baffle ring are installed inside the water box, and the outer baffle ring is located outside the inner baffle ring.

[0012] In a preferred embodiment, the present invention can be further configured such that both the outer retaining ring and the inner retaining ring are attached to the top of the annular turntable, and both are made of rubber material.

[0013] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0014] 1. In this utility model, the cooling water in the water box passes through the top of the water box to cool the electrical components. Then, the water injector injects the liquid water in the water box into the pipe connected to it. Then, under the impact of the water flow, the annular turntable rotates with the fan, which increases the cooling area of ​​the fan and avoids overheating of the structure in the power amplifier mechanism, making the device work more stably.

[0015] 2. In this utility model, the small signal is transmitted and output through an attenuator, an equalizer, two-stage driver chips, and a final-stage power amplifier chip. The equalizer optimizes the amplitude of the wideband small signal and compensates for the gain unevenness of the final-stage power amplifier chip. Then, an external feedback circuit is added to the two-stage driver chips to improve the output power flatness of the device. By selecting the final-stage power amplifier chip through power back-off, the linearity of the device is ensured throughout the entire frequency band. Thus, a wide-bandwidth, flat, high-linearity, and simple-structure power amplifier device design is achieved. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the power amplifier mechanism of this utility model;

[0018] Figure 3 This is an assembly diagram of the water-cooling mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram showing the disassembled water-cooling mechanism of this utility model.

[0020] Figure label:

[0021] 100. Power amplifier mechanism; 110. Water box; 120. Attenuator; 130. Equalizer; 140. Two-stage driver chip; 150. Final stage power amplifier chip;

[0022] 200. Water cooling mechanism; 210. Annular channel; 220. Annular turntable; 230. Fan; 240. Connecting channel; 250. Pipe body; 260. Water injector;

[0023] 300. Sealing plug;

[0024] 400. Outer retaining ring;

[0025] 500, Inner retaining ring. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0027] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0028] The following describes, with reference to the accompanying drawings, some embodiments of a broadband linear power amplifier device provided by this utility model.

[0029] Example 1:

[0030] Combination Figure 1-4 As shown, the present invention provides a broadband linear power amplifier device, including a power amplifier mechanism 100 and a water cooling mechanism 200. The power amplifier mechanism 100 includes a water box 110, an attenuator 120, an equalizer 130, a two-stage driver chip 140, and a final-stage power amplifier chip 150 installed on the top of the water box 110. The attenuator 120 is wired to the equalizer 130, the equalizer 130 is wired to the two-stage driver chip 140, and the two-stage driver chip 140 is wired to the final-stage power amplifier chip 150.

[0031] The water cooling mechanism 200 includes an annular channel 210 suspended above the water box 110, an annular turntable 220 fitted to the bottom of the inner cavity of the annular channel 210, a fan 230 connected to the annular turntable 220, two connecting channels 240 connected to and communicating with the annular channel 210, a pipe 250 connecting the water box 110 and the connecting channels 240, and a water injector 260 connected to the pipe 250 near the left side of the water box 110, wherein the water injector 260 is embedded on one side of the water box 110.

[0032] Furthermore, the attenuator 120, equalizer 130, two-stage drive chip 140, and final stage power amplifier chip 150 are arranged in a ring with equal spacing, and the fan 230 is movably mounted on top of the equalizer 130. This layout design ensures that the air blown out by the fan 230 can fully act on the top of the water box 110.

[0033] Furthermore, the pipe body 250 is connected to the interior of the annular channel 210 via the connecting channel 240, and the pipe body 250 is also connected to the interior of the water box 110. This structural design ensures that the cooling water can circulate within the water box 110 and the annular channel 210, providing conditions for driving the fan 230 to rotate.

[0034] Example 2:

[0035] Combination Figure 1 As shown, based on Embodiment 1, a sealing plug 300 is inserted into the front side of the water box 110. The sealing plug 300 is close to the right side wall of the water box 110. Pulling out the sealing plug 300 makes it convenient for operators to replace the cooling water in the annular channel 210.

[0036] Example 3:

[0037] Combination Figure 3-4 As shown, in the above embodiment, an outer baffle ring 400 and an inner baffle ring 500 are installed inside the water box 110. The outer baffle ring 400 is located outside the inner baffle ring 500. The outer baffle ring 400 and the inner baffle ring 500 can prevent cooling water from overflowing from the edge of the annular turntable 220.

[0038] Furthermore, both the outer retaining ring 400 and the inner retaining ring 500 are attached to the top of the annular turntable 220. Both are made of rubber material. The outer retaining ring 400 and the inner retaining ring 500 made of rubber material have a certain degree of elasticity and can achieve a good sealing effect.

[0039] The working principle and usage process of this utility model are as follows: When this device is put into actual use, the small signal is transmitted and output through attenuator 120, equalizer 130, two-stage driver chip 140 and final stage power amplifier chip 150. The equalizer 130 optimizes the amplitude of the broadband small signal and compensates for the gain unevenness of the final stage power amplifier chip 150. Then, an external feedback circuit is added to the two-stage driver chip 140 to improve the output power flatness of this device. By selecting the final stage power amplifier chip 150 through power back-off, the linearity of the device is ensured throughout the entire frequency band. This achieves the design of a power amplifier device with wide bandwidth, excellent flatness, high linearity and simple structure. In this process, the cooling water in the water box 110 passes through the top of the water box 110 to water-cool the electrical components. Then, the water injector 260 injects the liquid water in the water box 110 into the connected pipe 250. Then, under the impact of the water flow, the annular turntable 220 rotates the fan 230, increasing the air-cooling area of ​​the fan 230 and avoiding overheating of the structure in the power amplifier mechanism 100, making the device work more stably.

[0040] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A broadband linear power amplifier device, characterized in that, include: A power amplifier mechanism (100) includes a water box (110), an attenuator (120) mounted on the top of the water box (110), an equalizer (130), a two-stage driver chip (140), and a final-stage power amplifier chip (150). The attenuator (120) is connected to the equalizer (130), the equalizer (130) is connected to the two-stage driver chip (140), and the two-stage driver chip (140) is connected to the final-stage power amplifier chip (150). The water cooling mechanism (200) includes an annular channel (210) suspended above the water box (110), an annular turntable (220) fitted to the bottom of the inner cavity of the annular channel (210), a fan (230) connected to the annular turntable (220), two connecting channels (240) connected and communicating with the annular channel (210), a pipe (250) connected between the water box (110) and the connecting channels (240), and a water injector (260) connected to the pipe (250) near the left side of the water box (110), wherein the water injector (260) is embedded on one side of the water box (110).

2. The broadband linear power amplifier device according to claim 1, characterized in that, The attenuator (120), equalizer (130), two-stage driver chip (140), and final stage power amplifier chip (150) are arranged in a ring with equal spacing, and the fan (230) is movably mounted on top of the equalizer (130).

3. The broadband linear power amplifier device according to claim 1, characterized in that, The pipe body (250) is connected to the interior of the annular channel (210) through the connecting channel (240), and the pipe body (250) is connected to the interior of the water box (110).

4. The broadband linear power amplifier device according to claim 1, characterized in that, A sealing plug (300) is inserted into the front side of the water box (110), and the sealing plug (300) is close to the right side wall of the water box (110).

5. A broadband linear power amplifier device according to claim 1, characterized in that, The water box (110) is equipped with an outer baffle ring (400) and an inner baffle ring (500), with the outer baffle ring (400) located outside the inner baffle ring (500).

6. A broadband linear power amplifier device according to claim 5, characterized in that, The outer retaining ring (400) and the inner retaining ring (500) are both attached to the top of the annular turntable (220), and both are made of rubber material.

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