DC POWER SUPPLY DEVICE

摘要

A direct current power source portion for converting inputted alternating current power to direct current power of a predetermined voltage, a plus terminal and a minus terminal connected to the direct current power source and outputting the direct current power, a communication portion for detecting a first input voltage value preset in an electric device, a controlling portion for setting voltage of the direct current power outputted from the direct current power source portion at the first input voltage value inputted from the communication portion, and a remaining voltage processing portion having a capacitor connected in parallel between the plus terminal and the minus terminal and smoothing the direct current power, the remaining voltage processing portion discharging electric charge stored in the capacitor based on the first input voltage value.

主权项

1. A direct current power supply device comprising:
a direct current power source portion for converting inputted alternating current power to direct current power of a predetermined voltage; a plus terminal and a minus terminal connected to the direct current power source portion and outputting the direct current power; a communication portion for detecting a first input voltage value preset in an electric device; a controlling portion for setting voltage of the direct current power outputted from the direct current power source portion at the first input voltage value inputted from the communication portion; and a remaining voltage processing portion having a capacitor connected in parallel between the plus terminal and the minus terminal and smoothing the direct current power, the remaining voltage processing portion discharging electric charge stored in the capacitor based on the first input voltage value, wherein in a case where the electric device is detached from the plus terminal and the minus terminal, and another electric device is attached, the communication portion receives a second input voltage value preset in the another electric device, the controlling portion changes the voltage of the direct current power to the second input voltage value, and the remaining voltage processing portion discharges the electric charge stored in the capacitor based on a subtraction value left by subtracting the second input voltage value from the first input voltage value, wherein in a case where the communication portion cannot communicate with the another electric device, the communication portion detects the second input voltage value as a minimum value.