| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent the malfunction of electronic apparatuses having a booster circuit by the cause of sudden variation of source voltage due to the change of a boosting ratio. <P>SOLUTION: The state that electric charge is forwarded from a large capacity secondary power source 48 to an auxiliary capacitor 80 with a boosting ration M' (M' is positive real number other than 1) via a booster circuit, is moved to a state that the large capacity power source 48 is electrically connected directly to the auxiliary capacitor 80. At this moment, by transferring the electric energy from the large capacity secondary power source 48 to the auxiliary capacitor 80 via the booster circuit at non-boosting state with boosting ratio, M=1 and the electric potential difference between the large capacity secondary power source 48 to the auxiliary capacitor 80 is set below a specific value. Since no sudden voltage variation in the power source is resulted, the malfunction of electronic apparatus due to sudden voltage variation in power source can be prevented. <P>COPYRIGHT: (C)2004,JPO |
