| 摘要 |
<p>According to one embodiment, a power supply device (3, 57) includes a conductive first mounting board (32), a first switching element (9), a current control element (10), and a second switching element (11). The first switching element (9) is mounted on the first mounting board (32). The current control element (10) is mounted on the first mounting board (32), includes a main terminal connected to the first mounting board (32), is connected to the first switching element (9) in series, and is configured to limit an electric current of the first switching element (9). The second switching element (11) is connected to the current control element (10) in series. An electric current flows to the second switching element (11) when the first switching element (9) is off.</p> |
