| 摘要 |
One embodiment of the present invention relates to a variable power supply device. The technical problem to be solved is to supply stable DC power by enabling a user to check, correct, and complement a voltage measurement state. For this, according to one embodiment of the present invention, disclosed is the variable power supply device which includes case, an input terminal which receives commercial AC power from the outside on one side of the case, a PCB which includes a main control unit which is formed on the inner side of the case and controls to output DC power by successively transforming the commercial AC power into a low voltage, a rectified voltage, and a constant voltage, a mode selecting unit which is formed to protrude to the outside of the case and operates at least one switching mode to conform the DC power to a preset reference voltage, and a display unit which is formed near the mode selecting unit to protrude to the outside of the case and displays the DC power, and an output terminal which is formed on the other side of the case and inputs the outputted DC power to an experiment apparatus. |
