| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an AC rectifier stage (full-wave rectifier stage) of an AC-DC converter, and a PFC boost converter.SOLUTION: A bridgeless PFC boost converter includes: a first circuit including a first inductor 140, a first switch 160, and a first inductor switch 180 which are connected to an alternating current power source; an output stage connected in parallel to the first switch of the first circuit via a first diode 150; a second circuit including a second inductor 240, a second switch 260 and a second inductor switch 280 which are connected to the alternating current power source, the second switch being connected in parallel to the output stage via a second diode; and a controller configured to turn on the first inductor switch and boost the output stage by turning the first switch on and off when the positive phase of the alternating current power source is input, and turn on the second inductor switch and boost the output stage by turning the second switch on and off when the negative phase of the alternating current power source is input.</p> |
