Replica biased system
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United States of America Patent
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May 5, 2009
Grant Date -
Sep 13, 2007
app pub date -
Feb 22, 2007
filing date -
Feb 23, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
An apparatus, method and system are described for providing a low power replica biased regulated supply voltage without the size requirements of using a large resistor coupled between the source of a master transistor and ground. Instead, a source of a replica transistor diode may be biased with a bias voltage, and the gate and drain of the diode may be biased with a current bias. Additional descriptions provide the supply voltage without the size requirements of a resistor coupled between a source of one or more pass transistors and ground. Instead, the source of the pass transistor(s) may be biased with a “leaker” current.
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