Power conversion:
By adjusting the energy generated by the solar cell array, it is converted into a stable primary bus power supply, and through the power conversion function, stable output of 5V and 12V power supply signals is achieved;
Power supply channel protection:
During the power supply output process, the power supply channel can perform protection functions on the current output voltage or current signal in real time. When the output voltage or current is abnormal, the power supply output can be cut off in time to protect the subsequent circuit from damage;
Power supply channel protection (surge current tolerance):
During the startup process of the subsequent load, the power supply channel module can tolerate excessive output current within a certain period of time (10ms) to meet the starting surge current requirements of the subsequent load.
Power supply channel monitoring:
It can monitor the voltage, current and temperature of each power supply channel and send it to the satellite service computer in the form of telemetry data;
Telemetry data collection:
It can regularly collect and store the working status of the power subsystem hardware boards and components, and can send the telemetry data to the satellite computer through the intra-satellite communication bus;
Run protection:
The power subsystem board is designed with a self-operation protection mechanism in the form of hardware. When there is a problem with the internal software or components of the board, it can effectively detect the fault and achieve automatic reset;
Xingwu computer handshake protection function:
During operation, the star service computer and the power supply subsystem regularly perform handshake operations. When the operation times out and is not executed, the power supply subsystem can proactively power off and restart the star service computer;
Backup measurement and control function:
When there is a problem with the execution of the satellite’s internal satellite computer and it cannot be reset, the power subsystem can take over the entire satellite’s measurement and control tasks to a certain extent;
