| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent a through-current and achieve a stable output voltage by exactly detecting an orientation of a resonance current even when load fluctuations occur. <P>SOLUTION: The switching power supply device of current resonance system, controls on-off operations of two switching elements according to variations in voltage of a current resonance capacitor. <P>COPYRIGHT: (C)2012,JPO&INPIT |
