The disclosure relates to electrical converters for use in aircraft electrical power systems and to methods of operating such electrical converters to maintain reliable operation of semiconductor components over varying cosmic radiation levels at altitude. Exemplary embodiments include an electrical converter (200) comprising: a converter circuit (101) having a plurality of semiconductor devices (103-105a,b) configured to convert an input electrical supply (102) to an output electrical supply (104); and a controller (209) connected configured to receive an input altitude signal (113), wherein the controller (209) is further configured to control a temperature of the plurality of semiconductor devices (103-105a,b) according to the received input altitude signal (113) to reduce an effect of increased incident cosmic radiation on the converter circuit.
Electrical converter
2021-12-15
Patent
Electronic Resource
English