| 摘要 |
PROBLEM TO BE SOLVED: To reduce overshoot and undershoot which occur in the output voltage upon sudden change in the DC input voltage on the non-contact power supply side, when performing contact power supply and non-contact power supply while sharing one digital control circuit.SOLUTION: When performing contact power supply and non-contact power supply while sharing one digital control circuit 5, switching means digitally switches the control method of a power factor improvement circuit so that the digital control circuit 5 is operated as a power factor improvement circuit and controls an input current sinusoidally during contact power supply, and operated as a step-up converter circuit and accelerates feedback during contact power supply. |
