| 摘要 |
The invention relates to a switched-mode power supplying for a varying load in consecutive cycles of an operation period. Such a varying load may be, for example, a liquid crystal display device. The switched-mode power supply comprises converting means for converting an input voltage into an output voltage and control means arranged to generate a control signal for controlling the converting means. When chip-on-glass technology is used, parasitic resistances may introduce a lag in the output voltage regulation. In order to reduce the lag of the output voltage, the control means comprises memory means for storing status information corresponding to the load level relating to the switching pattern of the converting means in consecutive cycles, and the control means are arranged to generate the control signal from the retrieved status information.
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