CALIBRATION OF A BST CAPACITOR CONTROL CIRCUIT
First Claim
Patent Images
1. A circuit configured to control a capacitor having a capacitance settable by a bias signal, comprising:
- at least one terminal configured to receive a digital set point value depending on a value selected for the capacitance;
a determination circuit configured to determine a drift of the capacitance with respect to a nominal value; and
an adder circuit configured to apply a correction to said digital set point value, depending on the determined drift.
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Accused Products
Abstract
A circuit for controlling a capacitor having a capacitance settable by biasing, including at least one terminal for receiving a digital set point value depending on the value desired for the capacitance, a circuit for determining a drift of the capacitance with respect to a nominal value, and a circuit of application of a correction to said digital set point value, depending on the determined drift.
19 Citations
16 Claims
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1. A circuit configured to control a capacitor having a capacitance settable by a bias signal, comprising:
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at least one terminal configured to receive a digital set point value depending on a value selected for the capacitance; a determination circuit configured to determine a drift of the capacitance with respect to a nominal value; and an adder circuit configured to apply a correction to said digital set point value, depending on the determined drift. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system, comprising:
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a first capacitor having a settable capacitance, the capacitor having a first terminal; and a control circuit coupled to the first terminal, the control circuit including; a second terminal configured to receive a set point signal; a calibration circuit configured to output a correction signal; a combination circuit configured to receive the set point signal and the correction signal; a signal processing chain coupled to combination circuit and the first terminal of the first capacitor to provide a bias signal to set the capacitor in a calibration phase. - View Dependent Claims (9, 10, 11, 12)
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13. A device, comprising:
a control circuit having a calibration phase and an operating phase, the control circuit including; a first terminal configured to output a bias signal to a capacitor in the calibration phase; a second terminal configured to receive a set point signal; a calibration circuit configured to output a correction signal; a combination circuit configured to receive the set point signal and the correction signal; a signal processing chain coupled to combination circuit and the first terminal to provide the bias signal in the calibration phase. - View Dependent Claims (14, 15, 16)
Specification