ac-dc power supply for car
1500 V DC power supply system
20 kV power supply system
6 kV power supply system
AC electrification railway with direct power supply system
Auxiliary Power Supply System
battlefield power supply for communication instrument
Charging and Discharging Power Supply for Batteries
Communicatativc power supply system
communication system power supply
connection of station service power supply system
DC Power Supply for Arc Welding
DC traction power supply system
Direct Current Power Supply System
Electric Power Supply System
high voltage power supply system
High-frequency switching power supply system
loop power supply system