Compensation circuit for operational amplifier, integrated circuit and display panel
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United States of America Patent
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Jan 19, 2021
Grant Date -
N/A
app pub date -
May 15, 2020
filing date -
Nov 19, 2019
priority date (Note) -
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Abstract
Provided is a compensation circuit for an operational amplifier including a primary pole. The compensation circuit includes: a control circuit; and a compensation capacitor including a first terminal connected to the primary pole, and a second terminal connected to an output terminal of the control circuit. The control circuit includes: a pull-up module including a control terminal connected to a second control signal terminal, an input terminal connected to an input power supply, and an output terminal connected to a first control node being the output terminal of the control circuit; a pull-down module including a control terminal connected to a first control signal terminal, and an output terminal connected to ground; and an input transistor including a control terminal connected to the primary pole, an input terminal connected to a first control node, and an output terminal connected to an input terminal of the pull-down module.
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