Nonlinear capacitance linearization
First Claim
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1. An apparatus comprising:
- a first electronic device having a first nonlinear capacitance and coupled to a first nonlinear capacitance compensation circuit;
a first replica circuit;
the first nonlinear capacitance compensation circuit having a first compensation capacitance and configured to receive a first compensation control signal; and
a capacitance compensation control circuit configured to adjust the first compensation capacitance based on the first replica circuit using the first compensation control signal to at least partially linearize the first nonlinear capacitance.
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Abstract
An apparatus, which includes a first electronic device, a first nonlinear capacitance compensation circuit, and a capacitance compensation control circuit, is disclosed. The first electronic device has a first nonlinear capacitance and is coupled to the first nonlinear capacitance compensation circuit, which has a first compensation capacitance and receives a first compensation control signal. The capacitance compensation control circuit adjusts the first compensation capacitance using the first compensation control signal to at least partially linearize the first nonlinear capacitance.
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Citations
21 Claims
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1. An apparatus comprising:
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a first electronic device having a first nonlinear capacitance and coupled to a first nonlinear capacitance compensation circuit; a first replica circuit; the first nonlinear capacitance compensation circuit having a first compensation capacitance and configured to receive a first compensation control signal; and a capacitance compensation control circuit configured to adjust the first compensation capacitance based on the first replica circuit using the first compensation control signal to at least partially linearize the first nonlinear capacitance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An apparatus comprising a first nonlinear capacitance compensation circuit, a capacitance compensation control circuit, and a plurality of electronic devices coupled in series between a first connection node and a second connection node, wherein:
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the plurality of electronic devices comprises a first electronic device, which has a first nonlinear capacitance and is coupled to the first nonlinear capacitance compensation circuit; the first nonlinear capacitance compensation circuit has a first compensation capacitance and is configured to receive a first compensation control signal; the capacitance compensation control circuit is configured to adjust the first compensation capacitance using the first compensation control signal to at least partially linearize the first nonlinear capacitance; each of the plurality of electronic devices has a corresponding one of a plurality of nonlinear capacitances; the first nonlinear capacitance compensation circuit is coupled between the first connection node and the second connection node; and the capacitance compensation control circuit is further configured to adjust the first compensation capacitance to at least partially linearize at least one of the plurality of nonlinear capacitances. - View Dependent Claims (16, 17, 18, 19)
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20. An apparatus comprising:
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a first electronic device having a first nonlinear capacitance and coupled to a first nonlinear capacitance compensation circuit; a first replica circuit; the first nonlinear capacitance compensation circuit having a first compensation capacitance; and a bias circuit configured to provide a first bias signal to the first electronic device and further provide the first bias signal to the first nonlinear capacitance compensation circuit, which is configured to adjust the first compensation capacitance based on the first bias signal and the first replica circuit to at least partially linearize the first nonlinear capacitance. - View Dependent Claims (21)
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Specification