Power transfer and voltage level conversion for a battery-powered electronic device
First Claim
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1. A power supply for a portable electronic device, comprising:
- a power source which includes a DC power supply for providing a DC voltage, wherein the DC power supply includes one or more rechargeable DC batteries; and
a first transformer portion having a primary transformer winding around a first core element,wherein the power supply cooperates with the portable electronic device, the portable electronic device including a second transformer portion having one or more secondary windings around a second core element, such that the first transformer portion and the second transformer portion form a complete transformer to transfer power between the power supply and the portable electronic device.
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Abstract
A power supply device and system for providing power to a portable electronic device. A detachable device includes a rechargeable DC power source, a DC-to-AC inverter, and a primary transformer winding around a first core element. The portable electronic device includes multiple secondary transformer windings around a second core element. The detachable device cooperates with the portable electronic device so as to form a complete power supply circuit for providing AC and/or DC operating voltages to the portable electronic device.
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Citations
21 Claims
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1. A power supply for a portable electronic device, comprising:
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a power source which includes a DC power supply for providing a DC voltage, wherein the DC power supply includes one or more rechargeable DC batteries; and a first transformer portion having a primary transformer winding around a first core element, wherein the power supply cooperates with the portable electronic device, the portable electronic device including a second transformer portion having one or more secondary windings around a second core element, such that the first transformer portion and the second transformer portion form a complete transformer to transfer power between the power supply and the portable electronic device. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A power supply circuit for a portable electronic device, comprising:
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a second transformer portion including a second core element and one or more secondary windings around the core element; and one or more voltage supply means, each voltage supply means associated with one of the one or more secondary windings, for providing one or more supply voltages, wherein the second transformer portion cooperates with a DC power supply including a first transformer portion having a first core element and a primary winding so as to form a complete transformer for transferring power between the DC power supply and the portable electronic devices, wherein the DC power supply includes one or more rechargeable DC batteries. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A power supply system, comprising:
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a power supply device including a DC power source for supplying a DC voltage, and a first transformer portion having a primary transformer winding around a first core element, wherein the DC power source includes one or more rechargeable DC batteries; and an electronic device including a second transformer portion having one or more secondary transformer windings around a second core element, the electronic device receiving the power supply device such that the first and second transformer portions cooperate to form a complete power supply circuit. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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Specification