| 摘要 |
PROBLEM TO BE SOLVED: To provide an ultrasonic diagnostic apparatus having a plurality of input power supplies, enabling a stable operation of a power supply circuit even for an electrical power system where input voltage to a DCDC converter varies, and capable of eliminating a periodic noise caused by an operation of the DCDC converter.SOLUTION: The ultrasonic diagnostic apparatus includes a plurality of power input parts, a power supply switching part that switches over to one of the power input parts among the plurality of power input parts, a main converter to which the power is input from the power input part switched over by the power supply switching part and that outputs power of a constant voltage, and a plurality of sub-converters to which the constant voltage power is input and that outputs power to a circuit constituting the ultrasonic diagnostic apparatus. |
