Statistical Switched Capacitor Droop Sensor for Application in Power Distribution Noise Mitigation
First Claim
1. A circuit for detecting noise events in a system with time variable operating points, said circuit comprising:
- a switched capacitor filter comprising a plurality of capacitor units for sampling a first voltage to determine an average of a set of voltage measurements, forming an average voltage;
a filter control unit for controlling the plurality of capacitor units in the switched capacitor filter;
a comparing unit for comparing the average voltage to the first voltage to form a comparison; and
a signaling unit for generating a signal to instruct circuits in a processor to initiate actions to keep the first voltage from drooping below a threshold level in response to the comparison.
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Accused Products
Abstract
A circuit and a method for detecting noise events in a system with time variable operating points is provided. A switched capacitor filter comprising a plurality of capacitor units, samples a first voltage to determine an average of a set of voltage measurements, forming an average voltage. A filter control unit controls the plurality of capacitor units in the switched capacitor filter. A comparing unit compares the average voltage to the first voltage to form a comparison. A signaling unit generates a signal to instruct circuits in a processor to initiate actions to keep the first voltage from drooping below a threshold level in response to the comparison.
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Citations
25 Claims
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1. A circuit for detecting noise events in a system with time variable operating points, said circuit comprising:
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a switched capacitor filter comprising a plurality of capacitor units for sampling a first voltage to determine an average of a set of voltage measurements, forming an average voltage; a filter control unit for controlling the plurality of capacitor units in the switched capacitor filter; a comparing unit for comparing the average voltage to the first voltage to form a comparison; and a signaling unit for generating a signal to instruct circuits in a processor to initiate actions to keep the first voltage from drooping below a threshold level in response to the comparison. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for detecting circuit noise events in a system with time variable operating points, said method comprising:
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sampling a first voltage by a plurality of capacitor units to determine an average of a set of voltage measurements, forming an average voltage; comparing the average voltage to the first voltage to form a comparison; and generating a signal to instruct circuits in a processor to initiate actions to keep the first voltage from drooping below a threshold level in response to the comparison. - View Dependent Claims (21, 22, 23, 24, 25)
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Specification