Aviation onboard recorder independent power supply

Abstract

The invention belongs to avionics technology, is applied to the technical field of avionics, and particularly relates to an aviation onboard recorder independent power supply. The aviation onboard recorder independent power supply comprises a charging circuit 1, a control unit 2, an energy storage unit 3, a power supply voting unit 4 and a boosted circuit 5. As a super-capacitor is adopted as the energy storage unit, compared with a charging battery, the aviation onboard recorder independent power supply has the advantages that the cycle life is more than 100 times that of the charging battery, maintenance-free of the energy storage unit of the recorder independent power supply in a full life circle is achieved, large-current charging and discharging can be borne, self-heating quantity is small, energy storage efficiency can be improved conveniently, and the heat dissipation design can be simplified conveniently. The aviation onboard recorder independent power supply is designed according to requirements of the TSO-C155 airworthiness standard, adopts the super-capacitor for energy storage, and is capable of providing a 12 W back up power supply which can last 10 minutes for a recorder after being charged for 15 minutes when a main power supply of an aircraft is cut off.

Description

technical field [0001] The invention belongs to the category of avionics technology, is applied in the field of avionics technology, and particularly relates to an independent power supply of an aviation airborne recorder. Background technique [0002] The independent power supply of the recorder is used to provide a 10-minute backup power supply to the protective recorder when the main power supply of the aircraft is interrupted, so as to record key flight data. [0003] At present, the research and development of the independent power supply of the recorder has just started in China, and the related civil aviation standard CTSO-C155 of China was promulgated not long ago. The independent power supply of foreign recorders already has shelf products, and its energy storage unit generally adopts rechargeable batteries, such as nickel-cadmium batteries, lead-acid batteries, etc. However, rechargeable batteries have disadvantages such as low cycle life (not more than 1000 times...

AI Technical Summary

Problems solved by technology

However, rechargeable batteries have disadvantages such as low cycle life (not more than 1000 times), easy pollution of the environment, and narrow temperature range.

In view of the maintenance-free (less maintenance) and wide temperature (-55°C ~ 70°C) work requirements for the independent power supply of the recorder on domestic aircraft, the independent power supply of the foreign recorder cannot meet the requirements

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