| 摘要 |
<p>PURPOSE: An LED power supply device for an exhaust hood prevents instant lighting by suppressing an induced current by an absorption capacitor. CONSTITUTION: A switch (14a,14b) controls the on and off of an LED module. The LED module connects at least one individual LED in series and parallel. An absorption capacitor (140) is connected between a first node and a second node in parallel. The absorption capacitor buffers and absorbs an induced current. A dummy resistor (182) consumes a residual current remaining the first node and the second node.</p> |
