Power supply
First Claim
Patent Images
1. A wireless power supply for supplying power to a remote device, said wireless power supply comprising:
- a rectifier capable of accepting a first input voltage or a second input voltage, wherein said rectifier produces a rectified output from an AC source;
a sensor for detecting which of said first input voltage and said second input voltage is connected to said wireless power supply;
a plurality of switching circuits each coupled to said rectified output without being converted by a DC/DC converter;
a first tank circuit including a first capacitor and first inductor, said 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 including a second capacitor and second inductor, said 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 microcontroller programmed to control inductive power transfer to said remote device from a first or second tank circuit based on feedback from said remote device,wherein said microcontroller is programmed to control said plurality of switching circuits based on output from said sensor.
1 Assignment
0 Petitions
Accused Products
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.
22 Citations
25 Claims
-
1. A wireless power supply for supplying power to a remote device, said wireless power supply comprising:
-
a rectifier capable of accepting a first input voltage or a second input voltage, wherein said rectifier produces a rectified output from an AC source; a sensor for detecting which of said first input voltage and said second input voltage is connected to said wireless power supply; a plurality of switching circuits each coupled to said rectified output without being converted by a DC/DC converter; a first tank circuit including a first capacitor and first inductor, said 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 including a second capacitor and second inductor, said 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 microcontroller programmed to control inductive power transfer to said remote device from a first or second tank circuit based on feedback from said remote device, 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, 9)
-
-
10. A method of transferring wireless power from a wireless power supply to a remote device comprising:
-
rectifying a first AC input voltage or a second AC input voltage to produce a rectified output; detecting which of said first input voltage and said second input voltage is connected to said wireless power supply; switching said rectified output with one of a plurality of switching circuits, without converting said rectified output with a DC/DC converter, to produce an AC output; in response to said first input voltage being connected to said wireless power supply, using the AC output to inductively transmit power via a first tank circuit to the remote device, wherein the first tank circuit includes a first capacitor and first inductor, and the first tank circuit is coupled to one of the plurality of switching circuits, wherein characteristics of the first tank circuit are selected for transferring power to a remote device as a function of the first input voltage; in response to said second input voltage being connected to said wireless power supply, using the AC output to inductively transmit power via a second tank circuit to the remote device, wherein the second tank circuit includes a second capacitor and second inductor, and the second tank circuit is coupled to a different one of the plurality of switching circuits, wherein characteristics of the second tank circuit are selected for transferring power to the remote device as a function of the second input voltage, wherein the characteristics of the second tank circuit are different from the characteristics of the first tank circuit; controlling said inductive power transmission to the remote device from the first or second tank circuit based on feedback from the remote device, wherein the microcontroller is programmed to control the plurality of switching circuits based on which input voltage is connected to the wireless power supply. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
-
-
18. A wireless power supply system comprising:
-
a wireless power supply for inductively transmitting power to a remote device; said wireless power supply including; a wireless power supply rectifier capable of accepting a first input voltage or a second input voltage, wherein said rectifier produces a rectified output from an AC source; a sensor for detecting which of said first input voltage and said second input voltage is connected to said wireless power supply; a plurality of switching circuit coupled to said rectified output without being converted by a DC/DC converter; a first tank circuit including a first capacitor and first inductor, said 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 including a second capacitor and second inductor, said 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 wireless communication receiver for receiving feedback from said remote device; and a microcontroller programmed to control inductive power transfer to said remote device from said first or second tank circuit based on said feedback from said remote device; wherein said microcontroller is programmed to control said plurality of switching circuits based on output from said sensor; said remote device including; a wireless power receiver; a wireless communication transmitter for transmitting feedback to said wireless power supply; a remote device rectifier; and a load. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
-
Specification