| 摘要 |
PROBLEM TO BE SOLVED: To provide a rectifying circuit with little power loss. SOLUTION: An AC voltage supplied from an antenna coil ANT is smoothed by a capacitor C via a switching device SW1 and supplied to load L. A control circuit CONT1 outputs control voltage to keep the switching device SW1 in an off state, when the bias across the switching device SW1 is in a back flow state. |
