Voltage mode driver with current booster (VMDCB)
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United States of America Patent
Stats
-
Mar 24, 2015
Grant Date -
Dec 12, 2013
app pub date -
Jun 14, 2013
filing date -
Feb 29, 2012
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A voltage mode driver circuit able to achieve a larger voltage output swing than its supply voltage. The voltage mode driver circuit is supplemented by a current source or “current booster.” The circuit includes a first inverter, a second inverter, and a current source. The first inverter receives a first input and outputs a signal at a node. The second inverter receives a second input signal and outputs an inverted second input signal at the same node. The current source provides current to the node via a first switch, the first switch receiving an input at a first input where the voltage output swing at the node is larger than a power supply voltage applied to the current source. The voltage mode driver circuit uses a stable power supply voltage using a power amplifier with feedback.
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