LDO circuit

The invention discloses an LDO circuit. The LDO circuit comprises a power tube, an error amplification circuit, a feedback circuit and a transient detection compensation circuit. The first end of the power tube is connected with power voltage, and the control end of the power tube is connected with...

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Bibliographic Details
Main Authors ZHENG CHEN, WU HAIRUO, GU DONGLIE
Format Patent
LanguageChinese
English
Published 12.07.2024
Subjects
CONTROLLING
PHYSICS
REGULATING
SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
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Abstract The invention discloses an LDO circuit. The LDO circuit comprises a power tube, an error amplification circuit, a feedback circuit and a transient detection compensation circuit. The first end of the power tube is connected with power voltage, and the control end of the power tube is connected with the error amplification circuit; the feedback circuit is connected with the second end of the power tube and is used for generating a feedback signal; the error amplification circuit comprises a tail current source, and the first end of the error amplification circuit is used for receiving a feedback signal; and the transient detection compensation circuit is connected with the second end of the error amplification circuit and is used for generating compensation current based on the change rate of the power supply voltage so as to compensate the tail current of the error amplification circuit. By obtaining the change rate of the power supply voltage, the compensation current is generated when the voltage power supp
AbstractList The invention discloses an LDO circuit. The LDO circuit comprises a power tube, an error amplification circuit, a feedback circuit and a transient detection compensation circuit. The first end of the power tube is connected with power voltage, and the control end of the power tube is connected with the error amplification circuit; the feedback circuit is connected with the second end of the power tube and is used for generating a feedback signal; the error amplification circuit comprises a tail current source, and the first end of the error amplification circuit is used for receiving a feedback signal; and the transient detection compensation circuit is connected with the second end of the error amplification circuit and is used for generating compensation current based on the change rate of the power supply voltage so as to compensate the tail current of the error amplification circuit. By obtaining the change rate of the power supply voltage, the compensation current is generated when the voltage power supp
Author GU DONGLIE
ZHENG CHEN
WU HAIRUO
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Snippet The invention discloses an LDO circuit. The LDO circuit comprises a power tube, an error amplification circuit, a feedback circuit and a transient detection...
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SubjectTerms CONTROLLING
PHYSICS
REGULATING
SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
Title LDO circuit
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