Invention Grant
- Patent Title: Delta sigma modulator with unavailable output values
- Patent Title (中): 具有不可用输出值的ΔΣ调制器
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Application No.: US12241940Application Date: 2008-09-30
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Publication No.: US07755525B2Publication Date: 2010-07-13
- Inventor: Kartik Nanda , John L. Melanson
- Applicant: Kartik Nanda , John L. Melanson
- Applicant Address: US TX Austin
- Assignee: Cirrus Logic, Inc.
- Current Assignee: Cirrus Logic, Inc.
- Current Assignee Address: US TX Austin
- Agency: Hamilton & Terrile, LLP
- Agent Kent B. Chambers
- Main IPC: H03M3/00
- IPC: H03M3/00

Abstract:
A power control system includes a delta sigma modulator to generate output values for use in controlling a switching power converter. In at least one embodiment, the delta sigma modulator includes two ranges of available output values and a range of one or more unavailable intermediate output values, wherein the range of one or more unavailable intermediate output values represent a gap in available output values. Each unavailable intermediate output value represents an output value that is not generated by the delta sigma modulator. In at least one embodiment, the delta sigma modulator includes a quantizer output remapping module that remaps quantizer output values within the range of one or more unavailable intermediate output values of the delta sigma modulator to new output values within one of the ranges of available output values.
Public/Granted literature
- US20090191837A1 Delta Sigma Modulator with Unavailable Output Values Public/Granted day:2009-07-30
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