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Adjustable bidirectional amplifier

A two-way amplifier and adjustable technology, applied in the direction of two-way amplifier, amplified control, electrical components, etc., can solve the problem of inability to adjust the gain multiple, gain fixed, etc., to achieve the effect of supporting local and remote control and achieving gain

Pending Publication Date: 2022-04-12
杭州永谐科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional signal amplifiers are basically one-way transmission, and the gain is fixed, and cannot be adjusted to the corresponding gain multiple according to the demand

Method used

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  • Adjustable bidirectional amplifier
  • Adjustable bidirectional amplifier
  • Adjustable bidirectional amplifier

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] In this embodiment, the control part includes a main control module, the main control module is used to control the bidirectional transmission of signals in the signal transmission link and adjust the gain multiple of signal amplification, so that the signals can be transmitted bidirectionally in the uplink and downlink , the control part also includes a transceiver driver module, the transceiver driver module is connected to the main control module, the transceiver driver module is used to drive and process the receiving and transmitting of signals, the transceiver driver module controls the two-way transmission of signals, and the driving signals are transmitted between the uplink and downlink transmission on the road.

Embodiment 2

[0037] In this embodiment, a voltage stabilizing module is added on the basis of the first embodiment. The output end of the voltage stabilizing module is connected to the main control module. The voltage stabilizing module is used to stabilize the input power supply voltage. The input terminal of the voltage stabilizing module is 5V High level, the output is the 3.3V level used by the main control module, and a voltage conversion module is connected to the input terminal of the voltage stabilization module. The voltage conversion module is used to convert the power supply voltage to the level voltage used by the main control module. The input end is 48V level, and the output is the input 5V level of the voltage stabilizing module.

Embodiment 3

[0039] In this embodiment, a CAN communication module is added on the basis of Embodiment 2, the CAN communication module is connected to the main control module, and the CAN communication module is used for CAN bus transmission of signals to realize wireless transmission of signals, and the signal amplifier can be connected with the CAN bus communication protocol The user end constitutes a two-way transmission, even if the user is not in the local area, he can remotely control the signal amplifier for signal processing.

[0040] The main control modules in the above-mentioned embodiments all include a control chip CR1, the level end of the control chip CR1 is connected to a 3.3V high level, and the model of the control chip CR1 is STM32F103RCT6, such as image 3 As shown, the control chip CR1 can also be other single-chip microcomputers capable of signal control.

[0041]The transceiver drive module includes control chip U18 and control chip U4, such as Figure 4 and Figur...

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Abstract

An adjustable bidirectional amplifier comprises a control part, the control part is used for controlling bidirectional transmission of signals in a signal transmission link, the signal transmission link comprises an uplink and a downlink, the signal transmission end of the uplink and the signal transmission end of the downlink are connected with a solid-state switch, and the signal transmission link is selected through the solid-state switch. The control part is a mechanism part mainly used for controlling signal processing and transmission, the control part comprises a signal amplification module and a signal attenuation module, and the signal input ends and the signal output ends of the signal amplification module and the signal attenuation module are connected with solid-state switches. Two-way transmission of signals is achieved by switching the upper link and the lower link corresponding to the signal amplifier through the solid-state switch, gain adjustability is achieved by integrating the adjustable attenuator in the signal amplifier, the signal amplifier can achieve two-way transmission of the signals, the gain of the signal amplifier can be adjusted, and the signal amplifier has the advantages of being simple in structure and convenient to use. And local and remote control is supported.

Description

technical field [0001] The invention relates to the technical field of testing equipment, in particular to an adjustable bidirectional amplifier. Background technique [0002] The signal amplifier is a miniature repeater. Its function is to amplify and filter the signal, zero-level self-calibration, etc. The signal transmission method is from the uplink or downlink to the signal in the transmission link according to the determined Gain is amplified. [0003] Traditional signal amplifiers are basically one-way transmission, and the gain is fixed, which cannot be adjusted to the corresponding gain multiple according to the demand. Contents of the invention [0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a bidirectional signal amplifier capable of bidirectional signal transmission and adjustable gain. [0005] The present invention solves its technical problem and realizes by taking the following technical solutions...

Claims

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Application Information

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IPC IPC(8): H03F3/62H03G3/30
Inventor 马长春李宇翔
Owner 杭州永谐科技有限公司
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