MULTI-LEVEL DC CONVERSION POWER SOURCE DEVICE

摘要

A multi-level DC conversion power source device consists of a super capacitor (1), a circuit switching unit (2), a multi-level voltage conversion unit (3), and a voltage monitoring unit (4). The output end of the super capacitor (1) is connected to the multi-level voltage conversion unit (3) through the circuit switching unit (2), the multi-level voltage conversion unit (3) is connected to a load, the voltage monitoring unit (4) is connected to the output end of the super capacitor (1) and the circuit switching unit (2) for detecting the output voltage of the super capacitor (1) and controlling the circuit switching unit (2) to in its actions. The input voltage thereof can be arbitrarily inputted within the range of 50 - 270 V, and can realize stable and constant voltage output, improving stability and reliability. The power source requirements such as backup delay of power sources used by intelligent transformers, especially mobile intelligent transformers, intelligent switch actions, background monitoring and so on can be met. The structure thereof is simple, and the service life thereof is long.