On-chip dual-redundancy dual-channel power-driven servo mechanism control circuit

Abstract

The invention provides an on-chip dual-redundancy dual-channel power-driven servo mechanism control circuit. A redundant field programmable gate array (FPGA) chip is used as a core part, a power supply, a three-phase bridge chip, a solid relay, an A / D sampler, a host / backup switch circuit and a necessary interface circuit are laminated at the periphery of the FPGA chip, all dual-channel power-driven servo mechanism control algorithms are achieved in a printed circuit board (PCB), and dual redundancy backup is achieved. The on-chip dual-redundancy dual-channel power-driven servo mechanism control circuit is used for controlling the attitude of an engine in an upper-stage item for emitting many satellites in the aerospace field; and by the on-chip dual-redundancy dual-channel power-driven servo mechanism control circuit, dual-backup dual-channel power-driven servo mechanism control circuit can be achieved in a single board, and the on-chip dual-redundancy dual-channel power-driven servo mechanism control circuit has the advantages of high reliability, long working time on an orbit and fast fault recovery and switching speed.

Description

technical field [0001] The invention relates to an electric servo mechanism control circuit, which is applied to the upper-level model of YZ-3 multi-satellite launching in the aerospace field. Background technique [0002] At present, the electric servo mechanism control circuit used in the upper-level project of multi-satellite launch in the aerospace field has problems of poor reliability, short on-orbit work, high power consumption, low efficiency, and heavy weight. Contents of the invention [0003] Aiming at the defects in the prior art, the purpose of the present invention is to provide an on-chip dual-machine redundant dual-channel electric servo mechanism control circuit to realize the attitude control of the upper-level engine, which has high reliability, long on-orbit time, and fast fault switching speed. wait. [0004] In order to achieve the above object, the technical scheme adopted in the present invention is as follows: [0005] An on-chip dual-machine red...

AI Technical Summary

Problems solved by technology

[0002] At present, the electric servo mechanism control circuit used in the upper-level project of multi-satellite launch in the aerospace field has problems of poor reliability, short on-orbit work, high power consumption, low efficiency, and heavy weight

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