Fast power-on bias circuit
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United States of America Patent
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Dec 31, 2013
Grant Date -
Jul 5, 2012
app pub date -
Dec 30, 2011
filing date -
Dec 30, 2010
priority date (Note) -
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Abstract
Conventional bias circuits exhibit a number of limitations, including the time required to power-up a bias circuit following a low-power state. Large current surges in the supply network induce ringing, further complicating a power-up process. Example embodiments reduce power-up time and minimize current surges in the supply by selectively charging and discharging capacitance to the circuit during power-up and power-down of the bias circuit.
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