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Patent

Feed-forward bias circuit

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TLDR
In this paper, a feed-forward bias circuit is used to bias a delay circuit so that the delay circuit exhibits relatively constant delay characteristics over different PVT conditions, which can be used to compensate for transistor process corners.
Abstract
A feed-forward bias circuit biases body bias terminals of transistors of another circuit to compensate for PVT variations in the other circuit.In some aspects,the feed- forward bias circuit compensates for transistor process corners in a circuit by enabling the generation of different bias signals under different corner conditions.In some implementations,the feed-forward bias circuit is used to bias a delay circuit so that the delay circuit exhibits relatively constant delay characteristics over different PVT conditions.

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Patent

Sub-threshold region based low dropout regulator

Liu Yu-Hsuan
TL;DR: In this paper, a low dropout (LDO) regulator is configured to generate an LDO voltage, which includes at least one current mirror and a resistor, and the current mirror operates in a sub-threshold region.
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Adaptive bulk-bias technique to improve supply noise rejection, load regulation and transient performance of voltage regulators

TL;DR: In this article, an adaptive bias source is used to generate a bulk bias signal to a pass device in the low-dropout (LDO) voltage regulator, which is proportional to a current at the output of the LDO voltage regulator.
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Skew detection circuit and input circuit using the same

TL;DR: A skew detection circuit may include a bias circuit configured to generate a first bias signal and a second bias signal, a reference voltage circuit configuring to generate the third and fourth bias signals as discussed by the authors.
References
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Patent

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