Compensation device for feedback loops, and corresponding integrated circuit
First Claim
Patent Images
1. An electronic device comprising:
- an output terminal;
an output transistor having a control terminal and a conduction terminal coupled to the output terminal;
a resistor-capacitor (RC) compensation network configured to act on the control terminal of the output transistor;
a transconductance amplifier configured to drive the output terminal through the control terminal of the output transistor; and
a Miller effect stage coupled to the RC compensation network in a current flow path between the output terminal and a reference voltage, and having an input port coupled to the transconductance amplifier and an output port coupled to the control terminal of the output transistor.
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Abstract
An electronic device includes an output terminal, an output transistor having a control terminal and a conduction terminal coupled to the output terminal, and a resistor-capacitor (RC) compensation network configured to act on the control terminal of the output transistor. In addition, the electronic device includes a transconductance amplifier configured to drive the output terminal through the control terminal of the output transistor, and a Miller effect stage coupled to the RC compensation network and having an input port coupled to the transconductance amplifier and an output port coupled to the control terminal of the output transistor.
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Citations
19 Claims
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1. An electronic device comprising:
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an output terminal; an output transistor having a control terminal and a conduction terminal coupled to the output terminal; a resistor-capacitor (RC) compensation network configured to act on the control terminal of the output transistor; a transconductance amplifier configured to drive the output terminal through the control terminal of the output transistor; and a Miller effect stage coupled to the RC compensation network in a current flow path between the output terminal and a reference voltage, and having an input port coupled to the transconductance amplifier and an output port coupled to the control terminal of the output transistor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An electronic device comprising:
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an output terminal; an output transistor having a control terminal and a conduction terminal coupled to the output terminal; a resistor-capacitor (RC) compensation network; a transconductance amplifier coupled to the control terminal of the output transistor; and a Miller effect stage coupled to the RC compensation network in a current flow path between the output terminal and a reference voltage, and having an input port coupled to the transconductance amplifier and an output port coupled to the control terminal of the output transistor. - View Dependent Claims (15, 16)
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17. A method of providing compensation with a device comprising an output terminal, an output transistor having a control terminal and a conduction terminal coupled to the output terminal, a resistor-capacitor (RC) compensation network, a transconductance amplifier coupled to the control terminal of the output transistor, and a Miller effect stage coupled to the RC compensation network in a current flow path between the output terminal and a reference voltage, and having an input port coupled to the transconductance amplifier and an output port coupled to the control terminal of the output transistor, the method comprising:
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driving the output terminal through the control terminal of the output transistor via the transconductance amplifier; and acting on the control terminal of the output transistor via the RC compensation network. - View Dependent Claims (18, 19)
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Specification