LOAD ADAPTIVE VOLTAGE REGULATOR
First Claim
1. A method comprising:
- detecting an output voltage of a single-phase voltage regulator;
sensing an inductor current corresponding to a saturating output inductor of the single-phase voltage regulator;
generating a switching frequency signal based on the inductor current; and
controlling the voltage regulator based on the output voltage and the switching frequency signal, wherein the switching frequency signal sets a first switching frequency if the inductor current is below a saturation current threshold and a second switching frequency if the inductor current is above the saturation current threshold, and wherein the first switching frequency is less than the second switching frequency.
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Abstract
Methods and systems may involve detecting an output voltage of a voltage regulator and sensing an inductor current corresponding to a saturating output inductor of the voltage regulator. A switching frequency signal can be generated based on the inductor current, wherein the voltage regulator may be controlled based on the output voltage and the switching frequency signal. In one example, the switching frequency signal sets a first switching frequency if the inductor current is below a saturation current threshold, and sets a second switching frequency if the inductor current is below the saturation current threshold, wherein the second switching frequency is less than the first switching frequency.
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Citations
20 Claims
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1. A method comprising:
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detecting an output voltage of a single-phase voltage regulator; sensing an inductor current corresponding to a saturating output inductor of the single-phase voltage regulator; generating a switching frequency signal based on the inductor current; and controlling the voltage regulator based on the output voltage and the switching frequency signal, wherein the switching frequency signal sets a first switching frequency if the inductor current is below a saturation current threshold and a second switching frequency if the inductor current is above the saturation current threshold, and wherein the first switching frequency is less than the second switching frequency. - View Dependent Claims (2, 3, 4)
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5. An apparatus comprising:
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a single-phase voltage regulator to generate an output voltage based on an input voltage; a control loop to detect the output voltage and control the voltage regulator based on the output voltage and a switching frequency signal; and a frequency controller to determine an inductor current of the voltage regulator and generate the switching frequency signal based on the inductor current. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12)
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13. A system comprising:
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a processor core; a single-phase voltage regulator coupled to the processor core, the voltage regulator to generate an output voltage based on an input voltage, and apply the output voltage to the processor core; a control loop to detect the output voltage and control the voltage regulator based on the output voltage and a switching frequency signal; and a frequency controller to determine an inductor current of the voltage regulator and generate the switching frequency signal based on the inductor current. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification