ELECTRIC POWER SUPPLY DEVICE AND IMAGE FORMING APPARATUS INCLUDING SUCH AN ELECTRIC POWER SUPPLY DEVICE

摘要

An electric power supply device includes a first electric power supply configured to employ electric power supplied from outside as an input source; a second electric power supply configured to employ a rechargeable battery as an input source; a load electric power supply part configured to supply electric power to a constant voltage load; a heater electric power supply part configured to supply electric power to a heater; a DC internal bus configured to connect the first electric power supply, the second electric power supply, the load electric power supply part, and the heater electric power supply part; and a controller configured to control an output of the second electric power supply. The controller controls electric power supply from the second electric power supply to the DC internal bus based on a voltage of the DC internal bus.

主权项

1. An electric power supply device comprising:
a first electric power supply configured to employ electric power supplied from outside as an input source; a second electric power supply configured to employ a rechargeable battery as an input source; a load electric power supply part configured to supply electric power to a constant voltage load; a heater electric power supply part configured to supply electric power to a heater; a DC internal bus configured to connect the first electric power supply, the second electric power supply, the load electric power supply part, and the heater electric power supply part; and a controller configured to control an output of the second electric power supply, wherein the controller controls electric power supply from the second electric power supply to the DC internal bus based on a voltage of the DC internal bus.