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US 10,256,724 B2Granted
Power supply controller
AssigneeQUALCOMM Incorporated
InventorsZeljko Grbo, Aleksandar Prodic, Francesco Carobolante
Life of this patent
Estimating the term…
Abstract
Exemplary embodiments are directed to a power controller. A method may include comparing a summation voltage comprising a sum of an amplified error voltage and a reference voltage with an estimated voltage to generate a comparator output signal. The method may also include generating a gate drive signal from the comparator output signal and filtering a signal coupled to a power stage to generate the estimated voltage.
Claims17
A method, comprising:
- comparing a summation voltage with an estimated voltage to generate a comparison output signal, the summation voltage comprising a sum of an error voltage and a reference voltage;
- generating a gate drive signal based on the comparison output signal;
- and
- filtering a feedback signal at a node of a power stage to generate the estimated voltage, the filtering comprising filtering the feedback signal with a low-pass filter to generate the estimated voltage.
1 more element
A power converter, comprising:
- a controller configured for receiving an output voltage of a power stage, the controller having an output coupled to the power stage and comprising:
- a comparison circuit configured to:
- receive an estimated voltage and a summation voltage, the summation voltage comprising a sum of a reference voltage and an error voltage;
- and
- output a comparison voltage signal based on a comparison of the estimated voltage and the summation voltage;
- and
- a filter coupled to a feedback path, the feedback path being coupled to a node of the power stage, and wherein the filter is configured to generate the estimated voltage, the filter comprising a low-pass filter.
4 more elements
A device, comprising:
- means for comparing a summation voltage with an estimated voltage to generate a comparison output signal, the summation voltage comprising a sum of an error voltage and a reference voltage;
- means for generating a gate drive signal based on the comparison output signal;
- and
- means for filtering a feedback signal at a node of a power stage to generate the estimated voltage, the means for filtering being configured to low-pass filter the feedback signal to generate the estimated voltage.
1 more element
Dependencies are inferred from the claim text.