Dc-dc converter with switchable estimators
AssigneeNXP B.V.
InventorSander Derksen
Life of this patent
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Abstract
A DC-DC converter is provided with a first estimator unit (RAE, RLPF, RHPF) for performing an accurate control signal estimation and a second estimator unit (FEU, ΔVEU) for performing a fast control signal estimation. In addition, a switching unit (SU) is provided for switching to an output of the first estimator unit (RAE, RLPF, RHPF) during almost constant control signal conditions and for switching to an output of the second estimator unit (FEU, ΔVEU) during changing control signal conditions to provide an estimation on the required control signal.
Claims11
DC-DC converter, comprising:
- a first estimator unit for performing an accurate control signal estimation,
- a second estimator unit for performing a fast control signal estimation, and
- a switching unit for switching to an output of the first estimator unit during substantially constant control signal conditions and for switching to an output of the second estimator unit during substantially changing control signal conditions to provide an estimation on the required control signal.
Method for DC-DC conversion, comprising the steps of:
- performing an accurate control signal estimation,
- performing a fast control signal estimation, and
- switching to the output of the accurate control signal estimation during substantially constant control signal conditions and switching to an output of the fast control signal estimation during substantially changing control signal conditions in order to provide an estimation on the required control signal.
Device, comprising;
- a DC-DC converter having a first estimator unit for performing an accurate control signal estimation, a second estimator unit for performing a fast control signal estimation, and a switching unit for switching to an output of the first estimator unit during substantially constant control signal conditions and for switching to an output of the second estimator unit during substantially changing control signal conditions to provide an estimation on the required control signal.
Dependencies are inferred from the claim text.