High-voltage bus discharge with logarithmic self-protection
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United States of America Patent
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Oct 18, 2011
Grant Date -
Oct 29, 2009
app pub date -
Apr 24, 2008
filing date -
Apr 24, 2008
priority date (Note) -
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Abstract
Systems and methods for discharging a high-voltage bus coupled to a discharge circuit are provided. A method comprises obtaining a first voltage level of the high-voltage bus. The method further comprises determining a first discharge time based on the first voltage level and activating the discharge circuit. The method further comprises obtaining a second voltage level of the high-voltage bus after the first discharge time, comparing the first voltage level and the second voltage level, and deactivating the discharge circuit if a difference between the first voltage level and the second voltage level is less than a threshold value.
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