| 摘要 |
<p>In a DC power supply circuit (1), when a switching element (Q1) is switched on, a first current path is formed which leads to the output terminal on the low potential side of a rectifier circuit (2) from the output terminal on the high potential side of the rectifier circuit (2) via, in order, an inductor (L2) and the switching element (Q1), and a second current path is formed which leads to one terminal of a capacitor (C2) from the other terminal of the capacitor (C2) via, in order, a load (11), an inductor (L1) and the switching element (Q1). When the switching element (Q1) is switched off, a third current path is formed which leads to the output terminal on the low potential side of the rectifier circuit (2) from the output terminal on the high potential side of the rectifier circuit (2) via, in order, the inductor (L2), a diode (D1) and the capacitor (C2), and a fourth current path is formed which leads to one terminal of the inductor (L2) from the other terminal of the inductor (L1) via, in order, the diode (D1) and the load (11).</p> |
