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    • 1. 发明公开
    • 전원 회로, 모듈, 모터 구동 장치, 공조기 및 전원 장치의 제어 회로
    • 电源电路,模块,电机驱动装置,空调机和电源设备的控制电路
    • KR1020090093820A
    • 2009-09-02
    • KR1020090014100
    • 2009-02-19
    • 가부시키가이샤 히타치세이사쿠쇼히타치 어플라이언스 가부시키가이샤
    • 노또하라야스오엔도쯔네히로스즈끼다까히로오꾸야마아쯔시다무라겐지
    • H02M7/48H02P27/06F24F11/02
    • H02M1/4225H02M2001/0048Y02B70/126Y02B70/1491H02P27/06
    • A power supply circuit, a module, a motor driving device, an air conditioner, and a control circuit of a power supply unit are provided to perform stable control of a DC voltage by suppressing the change of the DC voltage regardless of the change of the load state or the power voltage. A boost chopper circuit(3) includes a switching element(31), an inductor, and a diode(33). A switching element performs the switching operation based on the duty ratio signal. An input current information generator generates the information of the input current induced from the AC power. A control unit(5) generates the input current information and a second coefficient from a first coefficient. The control unit generates the duty ratio for restricting the operation of a switching element based on the product of the input current information and the second coefficient. A load condition generator generates the load state information representing the state of the load connected to a smoothing circuit(4). A coefficient correcting unit corrects the first coefficient using the load state information.
    • 提供电源电路,模块,电动机驱动装置,空调器和电源单元的控制电路,通过抑制直流电压的变化来实现直流电压的稳定控制,而不管变压器 负载状态或电源电压。 升压斩波电路(3)包括开关元件(31),电感器和二极管(33)。 开关元件基于占空比信号进行开关动作。 输入电流信息发生器产生从AC电力引起的输入电流的信息。 控制单元(5)从第一系数产生输入电流信息和第二系数。 控制单元基于输入电流信息和第二系数的乘积,生成用于限制开关元件的动作的占空比。 负载状态发生器产生表示连接到平滑电路(4)的负载状态的负载状态信息。 系数校正单元使用负载状态信息来校正第一系数。