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POWER DISSIPATION MONITOR FOR CURRENT SINK FUNCTION OF POWER SWITCHING TRANSISTOR
POWER DISSIPATION MONITOR FOR CURRENT SINK FUNCTION OF POWER SWITCHING TRANSISTOR
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机译:功率损耗监控器,用于功率开关晶体管的电流吸收功能
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摘要
The embodiments disclosed herein describe a method of a power controller for monitoring for unsafe operating conditions of a drive transistor in a switching power converter of a LED lamp system by predicting the power dissipation of the drive transistor based on knowledge of the current through the drive transistor and a continuous observation of the voltage across the drive transistor. When the drive transistor approaches unsafe operating conditions, the power controller turns off the drive transistor.
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