Power supply
First Claim
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1. A multi-input wireless power supply comprising:
- an AC/DC rectifier circuit capable of accepting a first input voltage or a second input voltage, wherein said AC/DC rectifier produces a rectified output;
a sensor for detecting which of said first input voltage and said second input voltage is connected to said multi-input wireless power supply;
a plurality of switching circuits each coupled to said rectified output;
a first tank circuit coupled to one of said plurality of switching circuits, wherein characteristics of said first tank circuit are selected for transferring power to a remote device as a function of said first input voltage;
a second tank circuit coupled to a different of said plurality of switching circuits, wherein characteristics of said second tank circuit are selected for transferring power to said remote device as a function of said second input voltage, wherein said characteristics of said second tank circuit are different from said characteristics of said first tank circuit;
a low power DC/DC converter coupled to said AC/DC rectifier for converting said rectified output;
a microcontroller coupled to said low power DC/DC converter, wherein said microcontroller is programmed to control said plurality of switching circuits based on output from said sensor.
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Abstract
In one aspect, the present invention provides a universal power supply for wired and wireless electronic devices. In a second aspect, the present invention provides a universal power supply that is reconfigurable to provide a wide range of power supply options.
67 Citations
16 Claims
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1. A multi-input wireless power supply comprising:
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an AC/DC rectifier circuit capable of accepting a first input voltage or a second input voltage, wherein said AC/DC rectifier produces a rectified output; a sensor for detecting which of said first input voltage and said second input voltage is connected to said multi-input wireless power supply; a plurality of switching circuits each coupled to said rectified output; a first tank circuit coupled to one of said plurality of switching circuits, wherein characteristics of said first tank circuit are selected for transferring power to a remote device as a function of said first input voltage; a second tank circuit coupled to a different of said plurality of switching circuits, wherein characteristics of said second tank circuit are selected for transferring power to said remote device as a function of said second input voltage, wherein said characteristics of said second tank circuit are different from said characteristics of said first tank circuit; a low power DC/DC converter coupled to said AC/DC rectifier for converting said rectified output; a microcontroller coupled to said low power DC/DC converter, wherein said microcontroller is programmed to control said plurality of switching circuits based on output from said sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A multi-input wireless power supply comprising:
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a rectifier circuit capable of accepting a first input voltage or a second input voltage, wherein said rectifier circuit produces a rectified output; a plurality of switching circuits each coupled to said rectified output; a first tank circuit coupled to one of said plurality of switching circuits, wherein characteristics of said first tank circuit are selected for transferring power to a remote device as a function of said first input voltage without being converted by a DC/DC converter; a second tank circuit coupled to a different of said plurality of switching circuits, wherein characteristics of said second tank circuit are selected for transferring power to said remote device as a function of said second input voltage without being converted by a DC/DC converter, wherein said characteristics of said second tank circuit are different from said characteristics of said first tank circuit; and a microcontroller programmed to control said plurality of switching circuits. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification