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Application filed by Cheng Ching TzufiledCriticalCheng Ching Tzu
Priority to TW93118794ApriorityCriticalpatent/TWI243525B/en
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Publication of TWI243525BpublicationCriticalpatent/TWI243525B/en
Publication of TW200601659ApublicationCriticalpatent/TW200601659A/en
The present invention is a high frequent power source apparatus, it can supply stable DC power source to load. Application to a precision voltage control circuit, which applicable to the pulse frequency modulation (PFM) circuit. The circuit can be the Cold Cathode Fluorescent Lamp (CCFL) tubes getting stable high frequent voltage and earn the optimal emitting efficiency. The circuit also has protected circuit to avoid the CCFL tubes injury in the, overload voltage and low voltage. The circuit can also be applicable to TFT LCD TV, or others large LCD panels, and develop the best display effect of the LCD tubes.
TW93118794A2004-06-282004-06-28High frequency power source apparatus
TWI243525B
(en)
FLUORESCENT LAMP WITH EXTERNAL ELECTRODE, RETURN UNIT WITH FLUORESCENT LAMP WITH EXTERNAL ELECTRODE, LCD RETRIEVING DEVICE WITH BACKUP UNIT AND CONTROL UNIT FOR THIS