CONVERTING DEVICE OF THE PASSANGERS CAR POWER SUPPLY SYSTEM Russian patent published in 2008 - IPC B60L1/12 

FIELD: power supply.

SUBSTANCE: device includes the first input connector assy to connect to the external AC circuitry and the second input connector assy to connect to the car constant voltage source, that is, to the three-phase undercar generator with an amplifier or to the high-voltage converter of the train main power supply line. The device contains a rectifier unit, a charging device, a voltage converter and a power rectifier, a high-frequency inverter and a matching transformer connected in series. Note, that the voltage converter is composed of N inverters with every output connected to appropriate terminals intended for various AC Users of the car. The N inverters inputs are interconnected and have a common line with the second input connector assy connected to the rectifier unit output and the charging device input. The rectifier unit should incorporate two rectifiers.. At short-term switching-off of car power supply the device can be supplied by the storage batteries.

EFFECT: improvement of power parameters and increase in power supply system reliability.

4 cl, 4 dwg