| 摘要 |
<p>A power supply circuit (13A) for a piece of electronic equipment (12A) that can be affected by overheating or a fire, comprising a bistable switch (78) switchable between a first state in which the input terminal (17A) is connected to the output terminal (18A) and a second state in which the input terminal (17A) is not connected to the output terminal (18A), a first coil (73) and a second coil (75), the bistable switch (78) being configured to switch to the first state when the magnetic field induced by the second coil (75) is larger than the magnetic field induced by the first coil (73), and to switch to the second state when the magnetic field induced by the first coil (73) is larger than the magnetic field induced by the second coil (75).</p> |
