Power source control circuit for T/R assembly debugging instrument

Abstract

The invention discloses a power source control circuit for a T / R assembly debugging instrument. The power source control circuit comprises an AD-to-DC module, a first MOS switch, a voltage stabilizing chip module, a second MOS switch, a third MOS switch, a fourth MOS switch, a single chip microcomputer module, a DA controller, a native machine key, a power amplifier key and an assembly key. The single chip microcomputer module makes the voltage stabilizing chip module be within an error range through the DA controller, so that a voltage output value is more accurate; the MOS switches are arranged at the front input end and the rear input end of the voltage stabilizing chip module, an AD sampling point is arranged in front of each MOS switch, the single chip microcomputer module can detect whether the circuit works normally or not and whether voltage and current are normal or not through the AD sampling points to ensure safety of the circuit, and the single chip microcomputer module can give an alarm in time when a problem occurs to remind a user. The power source control circuit is arranged in the T / R assembly debugging instrument, provides an inner power source for the T / R assembly debugging instrument, is beneficial to tests of a T / R assembly and reduces the tedious processes of the tests of the T / R assembly.

Description

technical field [0001] The invention belongs to the technical field of TR component testing, and in particular relates to a power supply control circuit of a TR component debugging instrument. Background technique [0002] Wideband digital array radar is an important trend in the development of phased array radar at present. Because it completes the conversion between digital signals and analog signals in the radar antenna array, it has completely become a digital radar. With the high-speed sampling technology and The development of high-speed digital signal processor, wideband digital T / R component is one of the key technologies of wideband digital array radar. [0003] The T / R component module is the core of the digital array radar. It integrates the transmitter, receiver, exciter and local oscillator signal generator into a complete transmitter and receiver subsystem. Digitization and versatility provide a viable hardware platform. [0004] DDS technology is used to com...

AI Technical Summary

Problems solved by technology

[0007] The function of the existing T / R component testing instrument is very single, especially in terms of power supply. The existing T / R component testing or debugging instruments cannot provide power, and an external stabilized voltage source or DC is required. In this way, many instruments need to be moved and tested at the same time during the test. The whole work is not only very cumbersome, but once a problem occurs, each instrument needs to be checked one by one, which is very inconvenient to find the fault. , the external stabilized voltage source has no corresponding protection measures when the T / R components are connected. Once the stabilized voltage source is overvoltage or undervoltage, it is easy to burn the T / R components, causing irreparable losses. When the power supply instrument is connected to the T / R component, it is necessary to use a multimeter to perform a voltage test in advance to ensure the accuracy of the output of the external power supply instrument and prevent certain damage to the T / R component. The whole test process is not only cumbersome, but also prone to Unexpected problems, causing irreparable losses

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