| 摘要 |
PURPOSE: A control device of a washing machine is provided to supply constant voltage to overvoltage or unstable power supply region by compensating the voltage of a smoothing unit by connecting a DC stabilizing unit to the front end of the smoothing unit. CONSTITUTION: A control device of a washing machine is composed of a converter(200), a smoothing unit(300), an inverter unit(600), and a DC stabilizing unit(500). The converter receives AC power supply and changes it into DC power supply. The smoothing unit smooths the DC power supply output from the converter. The inverter unit changes the DC power supply output from the smoothing unit into motor power supply. The DC stabilizing unit keeps the DC link voltage constant based on the input voltage, input current and DC voltage. The input voltage and the input current are input to the smoothing unit. The DC link voltage is output from the smoothing unit. |
