Dynamic power management system and method
First Claim
1. A dynamic power management system comprising:
- an array of energy cells for providing a primary current path to a load;
a respective power stage for each energy cell, each respective power stage including a low side switch and a high side switch, said power stages configured to transfer power to and from each respective energy cell;
a temporary energy storage node enabling energy transfer from a first plurality of energy cells comprised by said array of energy cells to a second plurality of energy cells comprised by said array of energy cells;
said temporary energy storage node coupled to a corresponding terminal of each said high side switch.
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Accused Products
Abstract
According to one embodiment, a system configured to provide dynamic power management for a plurality of energy cells comprises an array of energy cells for providing a primary current path to a load, and a respective power stage for each energy cell. The power stages are configured to transfer power to and from each respective energy cell. The system further comprises a temporary energy storage node enabling energy transfer from a first plurality of energy cells comprised by the array of energy cells to a second plurality of energy cells comprised by the array of energy cells. In one embodiment, the system further comprises a feedback system for maintaining the temporary energy storage node at a constant average power.
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Citations
29 Claims
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1. A dynamic power management system comprising:
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an array of energy cells for providing a primary current path to a load; a respective power stage for each energy cell, each respective power stage including a low side switch and a high side switch, said power stages configured to transfer power to and from each respective energy cell; a temporary energy storage node enabling energy transfer from a first plurality of energy cells comprised by said array of energy cells to a second plurality of energy cells comprised by said array of energy cells; said temporary energy storage node coupled to a corresponding terminal of each said high side switch. - View Dependent Claims (2, 3, 4)
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5. A dynamic power management system including a bi-directional buck/boost array, said bi-directional buck/boost array comprising:
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a first bi-directional buck/boost block including a first low side switch and a first high side switch arranged in a half bridge configuration; at least a second bi-directional buck/boost block including a second low side switch and a second high side switch arranged in a half bridge configuration; wherein a terminal of said first low side switch and a corresponding terminal of said second low side switch are directly connected to a common ground node; a storage capacitor coupled between a reference node of said bi-directional buck/boost array and said common ground node, said reference node coupled to a terminal of said first high side switch and a corresponding terminal of said second high side switch. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A dynamic power management system configured to provide dynamic power management for a plurality of energy cells, said system comprising:
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a bi-directional buck/boost array including at least first and second bi-directional buck/boost blocks sharing a common ground node, said first bi-directional buck/boost block including a first low side switch and a first high side switch, said second bi-directional buck/boost block including a second low side switch and a second high side switch; a first energy cell coupled between an input/output (IO) node of said first bi-directional buck/boost block and said common ground node; a second energy cell coupled between an IO node of said second bi-directional buck/boost block and said IO node of said first bi-directional buck/boost block; a temporary energy storage node coupled to a terminal of said first high side switch and a corresponding terminal of said second high side switch; wherein said bi-directional buck/boost array is configured to provide dynamic power management for said first and second energy cells during energy discharge from said first and second energy cells and during energy accumulation by said first and second energy cells. - View Dependent Claims (18, 19, 20, 21, 22)
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23. A method for use by a system configured to provide dynamic power management for a plurality of energy cells, said method comprising:
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determining an energy transfer rate for said plurality of energy cells; detecting a characteristic energy transfer rate for each of said plurality of energy cells; and adjusting an output node energy transfer rate at a respective output node of each of said plurality of energy cells by supplementing or reducing said each output node energy transfer rate such that energy transfer for each of said plurality of energy cells occurs to optimize at least one performance target of said plurality of energy cells; said adjusting performed using a respective plurality of bi-directional buck/boost blocks of said system; each of said respective plurality of bi-directional buck/boost blocks including a low side switch and a high side switch, wherein a corresponding terminal of each said high side switch is coupled to a temporary energy storage node of said system. - View Dependent Claims (24, 25, 26, 27, 28, 29)
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Specification