Voltage regulator with improved voltage regulator response and reduced voltage drop
AssigneeNan Ya Technology Corporation
InventorsYuan Zhong Wan, Dong Pan
Life of this patent
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Abstract
A voltage regulator includes an output drive device configured to provide an output voltage to an output terminal; an error amplifier configured to control the output drive device by taking into consideration a feedback signal from the output voltage; a first compensation unit configured to provide a first compensation signal to compensate an output signal of the error amplifier; and a second compensation unit configured to provide a second compensation signal to compensate an input signal of the error amplifier, wherein second compensation unit comprises at least two capacitors and at least one transistor configured to control the coupling of the two capacitors.
Claims7
A voltage regulator, comprising:
- an output drive device configured to provide an output voltage to an output terminal;
- an error amplifier configured to control the output drive device by taking into consideration a feedback signal from the output voltage;
- a first compensation unit configured to provide a first compensation signal to compensate an output signal of the error amplifier;
- a second compensation unit configured to provide a second compensation signal to compensate an input signal of the error amplifier, wherein second compensation unit comprises at least two capacitors and at least one transistor configured to control the coupling of the two capacitors;
- and
- a voltage divider configured to divide the output voltage into a feedback voltage during an enable mode;
- and
- a second transistor configured to couple the feedback voltage to the input terminal of the error amplifier.
Dependencies are inferred from the claim text.