| 摘要 |
Method of tuning a drive circuit for a cold cathode fluorescent lamp (CCFL). The drive circuit includes a piezoelectric transformer coupled to an output of first and second transistors. The frequency of drive signals to the first and second transistors are varied until about a ninety degree phase relationship is achieved between the frequency of the drive signals and a frequency of voltage across a resistor connected to the CCFL is achieved. Alternatively, the frequency of the drive signals provided to the first and second transistor is adjusted as needed to achieve maximum output voltage.
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