Objective: The objective of the activity is to design, manufacture and test an electronic circuit breaker suitable for all electronic units in a telecom platform.
Targeted Improvements: Improving the response time by two orders of magnitude and voltage control byan order of magnitude; Enable simplified power management on the unit side; Enable reset of the power protection.
Description: Telecom platforms supply power to all their units via fuses. Because of the physical process of melting a material to open the electrical line, the time needed to actually open the circuit can vary significantly. Moreover, a very high current is needed. Therefore, the whole platform has to be designed to cope with very large current transients. Since every unit is supplied through a fuse, the number of them needed in every platform is quite high. An electronic circuit breaker is an attractive alternative to a fuse for thetelecom market. Its performance would be more predictable and it would operate much faster and with lower current.
The current can be sensed in an accurate way and the time needed to open the line can be finely controlled by an electronic circuit. Moreover, this circuit can also cope with the overload case where the consumption of a given unit has gone out of its nominal range but still has not produced a short circuit.
Finally, the circuit can be reset by command, which gives a significant increase in flexibility during the integration phase of the satellite. In this activity, an electronic circuit breaker shall be developed, manufactured and tested toverify its capability to replace fuses. Since this electronic circuit should be able to power any unit in a telecom platform, the voltage capability should be above 120V and the current capability should be above 2A.
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