Storage battery and voltage stabilizing source switching power supply circuit applied to cubesat

Abstract

The invention discloses a storage battery and voltage stabilizing source switching power supply circuit applied to a cubesat. The circuit comprises a storage battery power supply circuit and a voltagestabilizing source power supply circuit; the front end of the storage battery power supply circuit is connected with a storage battery module on a satellite; the front end of the voltage stabilizingsource power supply circuit is connected with a voltage stabilizing source device outside the satellite; and the rear ends of the storage battery power supply circuit and the voltage stabilizing source power supply circuit are connected with a bus of an on-satellite power supply system. After the voltage stabilizing source power supply circuit is connected with the voltage stabilizing source device outside the satellite, the voltage stabilizing source power supply circuit connects a voltage stabilizing source with the bus, the storage battery power supply circuit disconnects a storage batteryfrom the bus, the voltage stabilizing source provides power consumption during debugging of the whole satellite, and electric energy in the storage battery is not used. When the voltage stabilizing source power supply circuit is not connected with the voltage stabilizing source device, the storage battery power supply circuit connects the storage battery with the bus, and the storage battery provides power consumption for the whole satellite during working. The power supply can be automatically switched, the use is convenient, the thought is novel, and the problem of insufficient power storageof the storage battery during long-time debugging of the cubesat is solved.

Description

technical field [0001] The invention relates to the technical field of cube stars, in particular to a switching power supply circuit applied to a storage battery and a voltage stabilizing source of a cube star. Background technique [0002] In recent years, with the rapid development of communication, optoelectronic components, materials, sensors, and other technologies, cube satellites with low cost and high functional density have gradually emerged, which greatly reduces the development cost and development cycle of satellites. Remote measurement and testing become possible. [0003] As an important subsystem of CubeSat, the power supply system is to ensure safe and reliable power supply for the whole star during in-orbit flight and long-term stable power supply for the whole star during ground debugging. Since the various high-power loads on the star only work for a short time per orbit during orbital flight, the battery of the power system is sufficient for the power co...

AI Technical Summary

Problems solved by technology

At this time, we can only stop the debugging and charge the battery, which greatly limits the continuity of the debugging process; or use a stabilized voltage source to debug while charging the battery, which increases the cycle times of the battery and damages the life of the battery.

[0004] In order to solve this problem, the existing large satellites will add a relay between the battery and the busbar, and manually disconnect the connection between t

Images