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US 12,003,174 B2Granted
Pole compensation in reconfigurable power converter
AssigneepSemi Corporation
InventorGregory Szczeszynski
Life of this patent
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Abstract
In a power converter that includes a switched-capacitor circuit connected to a switched-inductor circuit, reconfiguration logic causes the switched-capacitor circuit to transition between first and second switched-capacitor configurations with different voltage-transformation ratios. A compensator compensates for a change in the power converter's forward-transfer function that would otherwise result from the transition between the two switched-capacitor configurations.
Claims20
An apparatus comprising:
- a controller to generate one or more control signals;
- and
- a compensator to compensate for a change in a gain of a power converter based, at least in part, on the one or more control signals, the gain is to be based, at least in part, on a transition between a first and a second power converter configurations,
- wherein the compensator to comprise a first compensation circuit to compensate for one or more linear properties of a change in at least one transfer function of the power converter, the first compensation circuit to receive a voltage from a second compensation circuit, the second compensation circuit to compensate for one or more non-linear properties of the change.
1 more element
An apparatus comprising:
- a controller to generate one or more control signals;
- and
- a compensator to compensate for a change in a gain of a power converter based, at least in part, on the one or more control signals, the gain is to be based, at least in part, on a transition between a first and a second power converter configurations,
- wherein the change in the gain to include a change in at least one transfer function of the power converter,
- wherein the at least one transfer function to include at least a charge pump transfer function and a compensator transfer function, wherein, with the power converter in the second power converter configuration, a double pole of the charge pump transfer function to move to a lower frequency, and
- wherein the compensator to lower a zero frequency of the compensator transfer function based, at least in part, on the move of the double pole of the charge pump to the lower frequency.
3 more elements
An apparatus comprising:
- a controller to generate one or more control signals;
- and
- a compensator to compensate for a change in a gain of a power converter based, at least in part, on the one or more control signals,
- wherein the change in the gain to include a change in at least one transfer function of the power converter,
- wherein the compensator to comprise an internal compensation circuit and an external compensation circuit to be coupled to the internal compensation circuit, the internal compensation circuit to receive a voltage from the external compensation circuit, and wherein the compensation for the change in the gain to be split between the internal compensation circuit and the external compensation circuit, the internal compensation circuit to compensate for one or more linear properties of the at least one transfer function and the external compensation circuit to compensate for one or more non-linear properties of the at least one transfer function,
- wherein the first and the second power converter configurations to correspond to a first and a second voltage transformation ratios, and
- the first and the second voltage transformation ratios to be different from each other.
4 more elements
Dependencies are inferred from the claim text.