METHOD OF THE INCREASED RELIABILITY MODULAR POWER SUPPLY SOURCE CONSTRUCTION AND MODULAR POWER SUPPLY SOURCE Russian patent published in 2018 - IPC H02J9/06 

FIELD: electrical engineering.

SUBSTANCE: invention relates to the field of electrical engineering and can be used to create power supply means with regard to the aircraft on-board equipment. In accordance with the increased reliability modular power supply design method, creating its structure with the power modules in-series connection by using the intermediate buses, arranged according to the supply voltages level corresponding to the aircraft primary current sources. In the event of the main primary current source power failure, the voltage failures presence under emergency operation conditions and the primary supply mains disconnection, performing the other level redundant current sources with the intermediate bus voltage connection for the main self-protected DC / DC power modules supply, in addition, performing the main output modules backing-up by the output voltage level in the event of one or more output modules failure or current overload. Modules composition is chosen in relation to the certain load value, where each input module is the structurally self-protected DC / DC converter with built-in PWM (PFM) control, its own input and output parameters, galvanic isolation, overcurrent protection.

EFFECT: increase in the secondary power supplies survivability, reliability and efficiency, which are built on the DC / DC converters for the 2nd and 3rd category consumers of on-board aircraft systems, which primary power is performed in accordance with GOST R 54073-2010.

5 cl, 4 dwg