Invention Grant
- Patent Title: Cascode compensation circuit and method for amplifier stability
- Patent Title (中): 串级补偿电路和放大器稳定性方法
-
Application No.: US12397118Application Date: 2009-03-03
-
Publication No.: US07880545B1Publication Date: 2011-02-01
- Inventor: Alessandro Venca , Daniele Ottini , Francesco Rezzi , Rinaldo Castello
- Applicant: Alessandro Venca , Daniele Ottini , Francesco Rezzi , Rinaldo Castello
- Applicant Address: BM Hamilton
- Assignee: Marvell International Ltd.
- Current Assignee: Marvell International Ltd.
- Current Assignee Address: BM Hamilton
- Main IPC: H03F1/14
- IPC: H03F1/14

Abstract:
The present invention provides compensation for circuits. In one embodiment, a compensation circuit has a first terminal coupled to an output terminal of the circuit and a second terminal coupled to feed back the output voltage to an internal node. A damping circuit may also be coupled to the output terminal. The damping circuit adds a pole and a zero to the transfer function of the circuit. In one embodiment, the damping circuit modifies the effect of the output impedance of a load on the transfer function to increase the phase margin of the circuit such that the circuit remains stable over an increased range of output capacitor values.
Information query
IPC分类: