A power distribution controller

Abstract

The invention provides a power distribution controller which comprises a serial instruction receiving circuit, a remote control drive circuit and an analog quantity gating acquiring circuit, wherein the serial instruction receiving circuit is used for receiving a differential signal from a bus, outputting a first signal, receiving a second signal and a third signal from a serial instruction decoding circuit and outputting a differential signal; the remote control drive circuit is used for receiving a power supply on / off signal output by the serial instruction decoding circuit, outputting an OC instruction, and controlling the turning off or on of a power supply switch; the remote control drive circuit is used for receiving a cell balance control signal output by the serial instruction decoding circuit, outputting a level signal, and controlling the off or on of the cell balance control circuit of a storage battery pack; the analog quantity gating acquiring circuit is used for receiving an analog quantity gating acquiring signal output by the serial instruction decoding circuit, gating a corresponding analog quantity acquiring channel through a multiplexer, and outputting a fourth signal to the serial instruction decoding circuit after an analog quantity is subjected to A / D conversion. According to the power distribution controller, an instruction transmission path is optimized, the weight of equipment is reduced, and the complexity of a low-frequency cable network is reduced.

Description

technical field [0001] The invention belongs to the field of satellite power supply and distribution, in particular to a novel power distribution controller suitable for satellites. Background technique [0002] The satellite power distribution controller refers to the control system that receives the data instructions sent by the satellite computer and completes the power management and power distribution of the satellite according to the mission requirements of the satellite. [0003] Usually, the satellite is equipped with two devices for power distribution system management: a power distributor and a power lower computer. The distributor receives external commands to control the closing and opening of the power supply switch, so as to realize the power distribution control of the load, and the lower computer of the power supply completes the management of the distributor and the balanced control of the battery pack. Among them, since the satellite works in the outer spa...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the defects in the prior art, the present invention provides a power distribution controller, which aims to control the power on and off of the load, control the charge and discharge of the power supply, and perform balanced management on the battery pack after decoding the serial commands , so as to solve the problems of heavy equipment, large volume, and complex low-frequency cable network, which are not conducive to the application in satellite systems, especially small satellites and microsatellite systems

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