HIGH VOLTAGE GATE DRIVER IC WITH RAMP DRIVER
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United States of America Patent
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Issued Date -
Mar 6, 2008
app pub date -
Jul 20, 2007
filing date -
Aug 31, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A High Voltage Gate Driver IC (HVIC) having an internal ramp drive function for controlling a high power switch to produce ramp output voltage waveforms. The HVIC including a sensor for sensing a voltage across the power switch; a reference generator for generating a reference voltage signal in accordance with an external setting; and a feedback circuit to provide a feedback gain to control a gate of the power switch, the feedback circuit making voltage across the power switch follow to reference and stable, wherein the HVIC generates the ramp drive function with minimized circuit components external to the HVIC.
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