Method and apparatus to optimize power clamping
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United States of America Patent
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Mar 5, 2024
Grant Date -
Jul 27, 2023
app pub date -
Jan 25, 2023
filing date -
Mar 3, 2020
priority date (Note) -
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Abstract
A clamping circuit that may be used to provide efficient and effective voltage clamping in an RF front end. The clamping circuit comprises two series coupled signal path switches and a bypass switch coupled in parallel with the series coupled signal path switches. A diode is coupled from a point between the series coupled signal path switches to a reference potential. In addition, an output selection switch within an RF front end has integrated voltage clamping to more effectively clamp the output voltage from the RF front end. Additional output clamping circuits can be used at various places along a direct gain signal path, along an attenuated gain path and along a bypass path.
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