Current output circuit and current output device

Abstract

The invention provides a current output circuit and device, and the circuit comprises: a micro-control module, which is used for generating a first control signal; a digital-to-analog conversion module, which is used for receiving the first control signal and converting and outputting a first voltage signal; a voltage and current conversion module, which is used for receiving the first voltage signal and outputting a first current signal corresponding to the first voltage signal, wherein the first current signal is used for driving an external load; an acquisition module, which is used for acquiring a voltage difference value between a first end and a second end of a power tube in the voltage and current conversion module as a first feedback signal and outputting the first feedback signal to the micro-control module; the micro-control module receives the first feedback signal, compares the voltage difference value with a preset voltage and generates a second control signal, and the second control signal is used for adjusting the voltage difference value between the first end and the second end of the power tube. The current output circuit can dynamically adjust the power consumption in the circuit according to the load, thereby controlling the temperature of the chip, prolonging the service life of the chip, and enhancing the reliability of the circuit.

Description

technical field [0001] The invention relates to the technical field of ship control, in particular to a current output circuit and a current output device. Background technique [0002] In recent decades, electronic equipment components required for ship control systems have long relied on imports. However, with the rapid development of domestic chips, domestic chips have been able to meet the various needs of ship control systems. [0003] At the same time, with the continuous development of ship control system, its complexity is getting higher and higher. As a result, the requirements for the integration of each module in the ship control system have also increased. [0004] However, with the increase of electronic equipment components in the ship control system, the power consumption of the circuits inside each module is increasing, and with the increase of power consumption, the operating temperature of the circuits also rises correspondingly, which will affect the pow...

AI Technical Summary

Problems solved by technology

[0004] However, with the increase of electronic equipment components in the ship control system, the power consumption of the circuits inside each module is increasing, and with the increase of power consumption, the operating temperature of the circuits also rises correspondingly, which will affect the power consumption of the circuits. The service life and stability of the chip, which in turn may reduce the reliability of the ship's control system

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