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US 2007/0182610 A1Published application
Systems and methods for digital control
AssigneeL&L Engineering, LLC
InventorsPaul Latham, Stewart Kenly
Life of this patent
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Abstract
Methods and systems for digital control.
Claims50
A digital controller comprising:
- a modulating component capable of receiving an analog signal and providing an oversampled signal;
- a compensating filter capable of receiving the oversampled signal;
- a low pass filter capable of receiving an output from said compensating filter and of providing a low pass filter output having substantially reduced amplitude at a frequency greater than a predetermined frequency;
- and
- a sub sampling component capable of receiving the low pass filter output and of providing a subsampled output, the subsampled output having a subsampled rate lower than a rate of the oversampled signal.
2 more elements
A controller comprising:
- a dither generating component capable of receiving an input signal having an input time resolution and of providing a dither output signal having a lower time resolution than the input time resolution;
- an average of the dither output signal being substantially equivalent to the input signal;
- and
- a digital pulse width modulator capable of receiving the dither output signal and of providing a plurality of pulse control pulses;
- said dither output signal determining at least one characteristic of said plurality of pulse control pulses.
2 more elements
A controller comprising:
- a compensating filter component capable of receiving a digital input signal and of providing a compensated digital signal;
- said compensating filter component comprising at least one predetermined parameter;
- an error performance filter capable of receiving the digital input signal and of providing a performance indicative signal;
- and
- a perturbation generating component capable of receiving the performance indicative signal and of providing values, to said compensating filter component, for said at least one predetermined parameter;
- a difference between said values and preceding value of said at least one predetermined parameter being substantially small compared to said preceding value.
3 more elements
A method for collecting real-time performance data from a digital power management component, the method comprising the steps of:
- providing a serial data transfer component capable of receiving/sending real-time data from/to a plurality of locations in the digital power management component;
- collecting, during operation of the digital power management component, real-time data from at least one location from the plurality of locations in the digital power management component;
- and
- providing, to a controller component, the real-time data collected from the at least one location.
1 more element
A system for collecting real-time performance data from a digital power management component, the system comprising:
- a serial data transfer component capable of receiving/sending real-time data from/to a plurality of locations in the digital power management component;
- and
- a controller component operatively connected to said sea of data transfer component, said controller comprising:
- at least one processor;
- at least one computer usable medium having computer readable code embodied there in, said computer readable code being capable of causing said at least one processor to:
- collect during operation of the digital power management component, real-time data from at least one location from said plurality of locations in the digital power management component.
3 more elements
A method for digital control, the method comprising the steps of:
- oversampling an analog signal;
- filtering the oversampled signal with a compensating filter;
- and
- low pass filtering and decimating the oversampled signal after filtering with the compensating filter, the decimating resulting in a decimated signal.
1 more element
An analog to digital converter (ADC) comprising:
- a modulating component comprising;
- a low resolution analog to digital converting component
- a variable gain component capable of receiving an output of said low-resolution analog to digital converting component and of providing a variable gain component output substantially equal to a variable multiplying factor times the output of said low-resolution analog-to-digital converting component;
- said variable gain component being also capable of receiving a gain setting signal and of modifying said variable multiplying factor in response to said gain setting signal;
- said variable gain component output being the oversampled signal;
- a discrete integrator receiving the variable gain component output;
- and
- a high. resolution digital to analog converting system;
- said high-resolution digital to analog converting system receiving an output of said discrete integrator;
- said low-resolution analog-to-digital converting system receiving a signal comprising a difference between the analog signal and an output of said high-resolution digital to analog converting system.
7 more elements
Dependencies are inferred from the claim text.