Power supply for an electrical load
First Claim
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1. A power supply for an electrical load, the power supply including:
- a first energy storage device for selectively connecting and disconnecting to terminals extending from the load and for supplying power to the load at a first predetermined supply voltage;
a capacitive energy storage device having a second predetermined supply voltage;
a converter connected to the terminals and to the capacitive energy storage device for converting the second predetermined supply voltage to the first predetermined supply voltage when the first energy storage device is disconnected from the terminals such that power is supplied from the capacitive energy storage device to the load at about the first predetermined supply voltage.
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Abstract
A power supply is for an electrical load in the form of a Notebook computer. The power supply includes first terminals which extend from the computer for releasably electrically connecting with a first energy storage device in the form of a battery during a first interval. A second energy storage device, in the form a second battery, releasably electrically connects with terminals during a second interval spaced apart from the first interval. This allows power to be supplied to the load during those intervals. A capacitive energy storage device supplies power to the load during a third interval that spans the spacing between the first and the second intervals.
44 Citations
23 Claims
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1. A power supply for an electrical load, the power supply including:
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a first energy storage device for selectively connecting and disconnecting to terminals extending from the load and for supplying power to the load at a first predetermined supply voltage; a capacitive energy storage device having a second predetermined supply voltage; a converter connected to the terminals and to the capacitive energy storage device for converting the second predetermined supply voltage to the first predetermined supply voltage when the first energy storage device is disconnected from the terminals such that power is supplied from the capacitive energy storage device to the load at about the first predetermined supply voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A power supply for an electrical load including:
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a controller connected to the load for transferring power to the load; an energy storage device connected to the controller for allowing power to be supplied to the load at a first predetermined voltage, the energy storage device having a predetermined threshold supply current; a capacitive energy storage device connected to the controller such that when the load requires a load current greater than the predetermined threshold supply current, the difference between the load current and the predetermined threshold supply current is substantially drawn from the capacitive energy storage device. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification