Over voltage protection for cascode switching power device
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United States of America Patent
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Mar 26, 2019
Grant Date -
Mar 7, 2019
app pub date -
Sep 6, 2017
filing date -
Sep 6, 2017
priority date (Note) -
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Abstract
Aspects of the present disclosure disclose a power semiconductor device coupled to a load operable to draw a load current comprising a power switch having a first terminal coupled to the load and a controller coupled to a control terminal of the power switch. The controller comprises a gate driving circuit configured to provide control of the control terminal of the power switch during normal switching operations; an overvoltage detection circuit configured to detect an overvoltage event occurring at the first terminal of the power switch; and an overvoltage protection circuit configured to provide control of the control terminal of the power switch during detection of the overvoltage event.
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