| 摘要 |
An improvement circuit for ripple voltage and an improvement method thereof are provided to prevent damage of a device due to the ripple voltage by supplying an output voltage with the minimized ripple voltage without damage of the circuit at a low cost. An improvement circuit for a ripple voltage includes a voltage charge and discharge unit(40), a voltage detection unit(30), a switching unit(50), and a control unit(60). The voltage charge and discharge unit supplies a predetermined voltage to a load(20). The voltage detection unit detects the voltage applied to both sides of the load. The switching unit performs on/off operations. The control unit checks the ripple voltage by comparing a detection voltage of the voltage detection unit and the predetermined reference voltage. When the ripple voltage occurs, the control unit controls the switching unit so that the voltage charge and discharge unit supplies the predetermined voltage to the load and when the ripple voltage does not occur, the control unit controls the switching unit so that the voltage charge and discharge unit is charged at the predetermined voltage.
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