| 摘要 |
PURPOSE: A driving device of an inverter lamp is provided to improve double LC resonance efficiency by configuring a single stage circuit with one switch. CONSTITUTION: A driving device of an inverter lamp comprises a first capacitor, a switch, and a second capacitor. The driving device includes a trans for inducing an input voltage of a primary side to a secondary side, and a cold cathode fluorescent lamp driven by an output voltage of the trans. The capacitor is charged by energy stored in the primary side wiring of the trans and realizes an LC resonance circuit with the primary wiring of the trans by using stored charges. The switch is connected between the primary side wiring and a ground terminal of the trans. In case of on-state, the switch allows the primary side wiring to charge the energy. In case of off-state, the switch emits the charges stored at the capacitor. The second capacitor is connected to a secondary side wiring in parallel, and realizes an LC resonance circuit with the secondary side wiring.
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