发明名称 |
Inverter driver and load driver including the same, and driving method thereof |
摘要 |
A load driver includes an inverter and an inverter driver. The inverter converts an input voltage into a driving voltage of a discharge lamp using at least one first switch for switching according to a duty ratio, and the inverter driver controls the inverter. The inverter driver controls the duty ratio using a voltage of a capacitor and a control signal having a waveform that is repeated with a predetermined frequency. The capacitor is charged and discharged by a current corresponding to a difference between a feedback voltage corresponding to a current flow to the discharge lamp and a reference voltage. Such inverter driver controls to gradually increase the output voltage of the inverter in the soft start period by setting the voltage of the capacitor as a voltage corresponding to the control signal. |
申请公布号 |
US8120337(B2) |
申请公布日期 |
2012.02.21 |
申请号 |
US20090564632 |
申请日期 |
2009.09.22 |
申请人 |
CHUNG JIN-HWA;CHOI JAE-SOON;SON CHAN;LEE HAK-HEE;FAIRCHILD KOREA SEMICONDUCTOR LTD. |
发明人 |
CHUNG JIN-HWA;CHOI JAE-SOON;SON CHAN;LEE HAK-HEE |
分类号 |
G05F1/00 |
主分类号 |
G05F1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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