Non-linear adaptive voltage positioning for DC-DC converters
AssigneeIntel Corporation
InventorRobert J. Fite
Life of this patent
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Abstract
The present invention provides a nonlinear adaptive voltage positioning DC-DC converter method and apparatus that enable improved voltage transient response under changing current conditions for a load with known current draw characteristics. The invention in some embodiments provides that the nonlinear adaptive voltage positioning be adaptable or configurable to a specific, known current load range that comprises less than the full current range that may be provided by the DC-DC converter, to optimize voltage transient response for a particular known load.
Claims16
A method of providing a voltage from a DC-DC converter such that the voltage provided varies dependent on the current drawn from the DC-DC converter, comprising:
- sensing a current drawn from the DC-DC converter;
- and
- adjusting the voltage provided from the DC-DC converter such that the voltage is at a maximum current voltage level when the current drawn is at a maximum load current level and the voltage is at a minimum current voltage level when the current drawn is at a minimum load current level.
A method of providing a voltage from a DC-DC converter such that the voltage provided varies dependent on the current drawn from the DC-DC converter, comprising:
- sensing an output current drawn from the DC-DC converter;
- converting the sensed output current to a voltage signal indicating the sensed output current;
- adjusting the voltage signal indicating the sensed output current such that the voltage is at a minimum level when the current drawn is at a maximum load current level and the voltage is at a maximum level when the current drawn is at a minimum load current level;
- and
- adding the adjusted voltage signal to the voltage provided by the DC-DC converter.
A method of providing a voltage from a DC-DC converter such that the voltage provided varies dependent on the current drawn from the DC-DC converter, comprising:
- sensing an output current drawn from the DC-DC converter;
- converting the sensed output current to a voltage signal indicating the sensed output current;
- adjusting the voltage signal indicating the sensed output current such that the voltage is at a maximum level when the current drawn is at a maximum load current level and the voltage is at a minimum level when the current drawn is at a minimum load current level;
- and
- subtracting the adjusted voltage signal from the voltage provided by the DC-DC converter.
A DC-DC converter, comprising:
- a module operable to sense a current drawn from the DC-DC converter and further operable to adjust the voltage provided from the DC-DC converter such that the voltage is at a maximum current voltage level when the current drawn is at a maximum load current level and the voltage is at a minimum current voltage level when the current drawn is at a minimum load current level.
Dependencies are inferred from the claim text.