Satellite-rocket separation autonomous power-on circuit

Abstract

The embodiment of the invention discloses a satellite-rocket separation autonomous power-on circuit, which comprises a solar cell array, a bus, a storage battery pack, a self-starting power-on switch,a separation self-starting circuit, a separation switch, a discharge switch, a satellite service computer and a DC / DC module. Before satellite-rocket separation, the separation self-starting circuitis set to be in an enabling state, the separation switch is set to be in a closed state, the discharge switch is set in an off state, and the whole satellite is in a power-down state; after satellite-rocket separation, the separation switch is changed from a closed state to an open state, the self-starting power-on switch is switched on, the storage battery pack supplies power to the bus, the whole satellite is power-on and starts; in order to avoid faults of the separation switch or the self-starting power-on switch to enable the whole satellite to be unable to be power-on, and then the satellite service computer sends a switch-on instruction to switch on the discharge switch, the separation self-starting circuit is set to be in a forbidden state from an enabled state, the separation self-starting circuit controls the self-starting power-on switch to be switched off, and the storage battery pack supplies power to the bus through the discharge switch, so that autonomous power-on of thesatellite after satellite-rocket separation is realized.

Description

technical field [0001] The invention relates to the technical field of star-arrow separation, in particular to an autonomous power-on circuit for star-arrow separation. Background technique [0002] The traditional satellite platform is generally in the power-on state during the launch process. After the satellite and rocket are separated, the star affairs computer detects the effective signal of the satellite and rocket separation. As the initial moment of the whole satellite, it starts to execute the program control program, starts the attitude control, and the pyrotechnics detonation control. , status monitoring, load photography and other operations. However, with the rapid development of micro-satellite technology and the rapid development of commercial spaceflight, the demand for multi-satellite or satellite-carried missions is increasing day by day. If the satellites are always powered on when they are on the rocket, it may cause unnecessary damage to the main star. ...

AI Technical Summary

Problems solved by technology

However, with the rapid development of micro-satellite technology and the rapid development of commercial spaceflight, the demand for multi-satellite or satellite-carried missions is increasing day by day. If the satellites are always powered on when they are on the rocket, it may cause unnecessary damage to the main star. Signal interference, and this design idea is not flexible, and the satellite battery needs to be recharged before the launch, which cannot meet the needs of rapid commercial space launches.

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