| 摘要 |
An AC/DC inverter provided for transforming a DC power source into an AC power source, wherein the AC signal is used for driving a fluorescent filament. The inverter comprises a half-bridge switch electrically connected to the DC power source, wherein the half-bridge switch outputs the AC signal, a resonance groove circuit electrically connected to the half-bridge switch and the fluorescent filament, wherein the resonance groove circuit is provided for stepping up and filtering the AC signal into a high-voltage AC power source, providing a power for a load, and a controller feeding back an output of the fluorescent filament, providing a wavelength adjusting signal for controlling the conduction and cutting off of the half-bridge switch, such that the fluorescent filament can operate consistently and provide a consistent brightness.
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