| 摘要 |
A ballast control circuit for driving at least one gas discharge lamp (14) in accordance with an embodiment of the present applicatio includes a high side driver operable to provide a high side driving signal to a high side switch (MHS) of a half bridge (12) controlle a ballast control circuit, wherein the high side driving signal indicates a preferred duty cycle for the high side switch (MHS), a low s driver operable to provide a low side driving signal to a low side switch (MLS) of the half bridge, wherein the low side driving sign indicates a preferred duty cycle for the low side switch and a dead time control circuit operable to provide a dead time signal that indicates a dead time during which both the high side and low side siwtches (MHS, MLS) are turned off, wherein the dead time is s based on a value of an external dead time resistor (TDT).
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