Series and parallel hybrid switched capacitor networks for IC power delivery
First Claim
1. A power delivery network comprising:
- a first power delivery stage coupled to receive a first input voltage and to provide a first output voltage based on the first input voltage, the first power delivery stage comprising a first voltage regulator and a first switched capacitor converter coupled in parallel; and
a second power delivery stage coupled to receive the first output voltage and to provide a plurality of output voltages based on the first output voltage, the second power delivery stage comprising;
a second voltage regulator and a second switched capacitor converter coupled in parallel, and coupled to receive the first output voltage and to provide one of the plurality of output voltages based on the first output voltage, anda third voltage regulator coupled to receive the first output voltage and to provide a second of the plurality of output voltages based on the first output voltage.
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Accused Products
Abstract
Series switches for power delivery. A regulator operated as a current source is arranged in parallel with a switched capacitor divider. A switched capacitor divider is configured in series with a plurality of linear regulators with each regulating one of a plurality of voltage outputs from the switched capacitor divider. In another embodiment, a series switch bridge has a first pair of switches connected in series with a second pair of switches across a voltage input, each switch within a pair of switches is switched in-phase with the other while the first pair of switches is switched out of phase with the second pair of switches. A balancing capacitor is coupled across one switch in both the first and second pair to be in parallel when either of the pair of switches is closed to reduce a charge imbalance between the switches.
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Citations
15 Claims
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1. A power delivery network comprising:
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a first power delivery stage coupled to receive a first input voltage and to provide a first output voltage based on the first input voltage, the first power delivery stage comprising a first voltage regulator and a first switched capacitor converter coupled in parallel; and a second power delivery stage coupled to receive the first output voltage and to provide a plurality of output voltages based on the first output voltage, the second power delivery stage comprising; a second voltage regulator and a second switched capacitor converter coupled in parallel, and coupled to receive the first output voltage and to provide one of the plurality of output voltages based on the first output voltage, and a third voltage regulator coupled to receive the first output voltage and to provide a second of the plurality of output voltages based on the first output voltage. - View Dependent Claims (2, 3, 4, 5)
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6. A power delivery network comprising:
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a parallel hybrid converter stage coupled to receive a first input voltage and to provide a first output voltage based on the first input voltage, the parallel hybrid converter stage comprising a first voltage regulator and a first switched capacitor divider coupled in parallel; a second parallel hybrid converter stage coupled to receive the first output voltage and to provide a second output voltage based on the first output voltage, the second parallel hybrid converter stage comprising a second voltage regulator and a second switched capacitor divider coupled in parallel; a third voltage regulator coupled with the first output voltage and to provide a third output voltage; and a fourth voltage regulator coupled with the first output voltage and to provide a fourth output voltage. - View Dependent Claims (7, 8, 9, 10)
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11. A power delivery network comprising:
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a parallel hybrid converter stage coupled to receive a first input voltage and to provide a first output voltage based on the first input voltage, the parallel hybrid converter stage comprising a first voltage regulator and a first switched capacitor divider coupled in parallel; a second parallel hybrid converter stage coupled to receive the first output voltage and to provide a second output voltage based on the first output voltage, the second parallel hybrid converter stage comprising a second voltage regulator and a second switched capacitor divider coupled in parallel; and a third parallel hybrid converter stage coupled to receive the first output voltage and to provide a third output voltage based on the first output voltage, the third parallel hybrid converter stage comprising a third voltage regulator and a third switched capacitor divider coupled in parallel. - View Dependent Claims (12, 13, 14, 15)
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Specification