| 摘要 |
A DC/DC converter comprises a switch device, an inductor, a rectifying device and a capacitor. Switch device has a first terminal coupled to a DC power supply and a control terminal receiving a control signal. Inductor has a first terminal electrically coupled to a second terminal of switch device. Rectifying device has a first terminal electrically coupled to the first terminal of inductor. Capacitor has a first terminal electrically coupled to a second terminal of rectifying device, a second terminal electrically coupled to a second terminal of inductor. Switch device is switched between a first and second states based on control signals, the power of DC power supply is stored into inductor when switch device is in the first state; the power stored in inductor is released and provided to capacitor and LED module through rectifying device when switch device is in the second state.
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