Invention Application
- Patent Title: Regulator with variable capacitor for stability compensation
- Patent Title (中): 具有可变电容器的稳压器,用于稳定补偿
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Application No.: US10738382Application Date: 2003-12-16
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Publication No.: US20050127885A1Publication Date: 2005-06-16
- Inventor: Soon-Gil Jung
- Applicant: Soon-Gil Jung
- Applicant Address: US CA Sunnyvale 94089-1138
- Assignee: QuickLogic Corporation
- Current Assignee: QuickLogic Corporation
- Current Assignee Address: US CA Sunnyvale 94089-1138
- Main IPC: G05F1/40
- IPC: G05F1/40 ; G05F1/565 ; H03F1/38

Abstract:
A voltage regulator with a variable compensation capacitor is capable of driving a large variable dynamic current load. The regulator includes an error amplifier and an output stage amplifier. The variable compensation capacitor is disposed between the output terminal of the error amplifier and the output terminal of the output stage amplifier. In one embodiment, a NMOS transistor is disposed between the output terminal of the output stage amplifier and the variable compensation capacitor. The variable compensation capacitor may be, e.g., a PMOS transistor with the source and drain tied together. In one embodiment, a plurality of regulators is included on chip, e.g., such as a programmable device, where the output terminals of each regulator is tied together and used to drive the same load.
Public/Granted literature
- US07088082B2 Regulator with variable capacitor for stability compensation Public/Granted day:2006-08-08
Information query
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