Research on electric energy conversion methods for small power equipment based on constant-current power supply with submarine optical cable

Considering simple, stability and reliable power supply module for the small power equipment in underwater information network, based on constant-current power supply with submarine optical cable, the electric energy conversion methods with voltage stabilizing diodes are designed and researched. The mathematical models are established and the reliability calculation formulas are deduced for four connection modes, namely series connection, parallel connection, series-parallel connection and parallel-series connection of voltage stabilizing diodes. The simulation results show that each connection mode can obtain its highest reliability by choosing optimum number of voltage stabilizing diodes. In practical application, the most suitable electric energy conversion method can be chosen by considering the reliability of different connections and the number of devices required synthetically.