Emitter follower buffer with reverse-bias protection
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United States of America Patent
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Oct 25, 2016
Grant Date -
May 12, 2016
app pub date -
Jul 3, 2013
filing date -
Jul 3, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
The invention relates to a buffer circuit for a receiver device including a transconductance stage and an output stage coupled in parallel to output stages of other channels of the device. The output of the transconductance stage is connected to a base of a bipolar transistor in the output stage. A switch is connected between the base of the bipolar transistor and the emitter of the bipolar transistor. A controller is arranged to switch the buffer circuit from a switch-off mode to a switch-on mode and back. In switch-off mode the switch is switched on, so as to connect the base and the emitter of the bipolar transistor.
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