Long range low frequency resonator

Abstract

Described herein are embodiments of a wireless power transmitter system for transmitting power to at least one high-Q resonator that includes a connection to a source of line power, a modulating part, which converts said line power to create a first frequency of lower than 1 MHz, and a transmitter part, including a transmitting high-Q resonator formed of a conductive loop with a capacitor that brings said high-Q resonator to resonance at said first frequency, and which produces a magnetic field based on said source of line power, said transmitter part having a Q factor at said frequency, where said Q factor is at least 300.

1 . A wireless power transmitter system for transmitting power to at least one high-Q resonator, comprising:
 a connection to a source of line power;   a modulating part, which converts said line power to create a first frequency of lower than 1 MHz; and   a transmitter part, including a transmitting high-Q resonator formed of a conductive loop with a capacitor that brings said high-Q resonator to resonance at said first frequency, and which produces a magnetic field based on said source of line power, said transmitter part having a Q factor at said frequency, where said Q factor is at least 300.   
     
     
         2 . A system as in  claim 1 , wherein said Q factor is at least 1000. 
     
     
         3 . A system as in  claim 1 , wherein said transmitting high-Q resonator uses stranded wire for said conductive loop formed of multiple strands which each carry current but are insulated from one another. 
     
     
         4 . A system as in  claim 1 , wherein said transmitting high-Q resonator uses material inside said conductive loop. 
     
     
         5 . A system as in  claim 4 , wherein said material is formed of a magnetic material. 
     
     
         6 . A system as in  claim 5 , wherein said conductive loop is formed of a stranded wire material formed of multiple strands which each carry current but are insulated from each other. 
     
     
         7 . A system as in  claim 6 , wherein said stranded wire material is Litz wire. 
     
     
         8 . A system as in  claim 1 , further comprising at least one resonator, tuned to repeat a magnetic field produced by said transmitter. 
     
     
         9 . A system as in  claim 1 , wherein said first frequency is lower than 500 kHz. 
     
     
         10 . A system as in  claim 1 , further comprising a receiver that has a high-Q resonator formed of a coil loop and a capacitor which makes a resonant circuit at said first frequency that has magnetic energy induced therein by said transmitter, and which produces output power. 
     
     
         11 . A system as in  claim 10 , wherein said high-Q resonator in said receiver uses stranded wire in said coil loop formed of multiple strands which each carry current but are each insulated from one another. 
     
     
         12 . A system as in  claim 10 , wherein said high-Q resonator in said receiver uses magnetic material in said coil loop. 
     
     
         13 . A wireless power receiver system for receiving power from at least one high-Q resonator, comprising:
 a receiver part, including a receiving high-Q resonator formed of a conductive loop with a capacitor that brings said high-Q resonator to resonance at a first frequency, and which receives a magnetic field and produces an output that is based on the magnetic field, said first frequency being lower than 1 MHz; and   a circuit, which couples to said output to produce a power output.   
     
     
         14 . A system as in  claim 13 , wherein a Q factor of said receiver part is at least 300. 
     
     
         15 . A system as in  claim 13 , wherein said receiving high-Q resonator uses stranded wire for said conductive loop formed of multiple strands which each carry current but are insulated from one another. 
     
     
         16 . A system as in  claim 13 , wherein said receiving high-Q resonator uses material inside said conductive loop. 
     
     
         17 . A system as in  claim 16 , wherein said material is formed of a magnetic material. 
     
     
         18 . A system as in  claim 17 , wherein said conductive loop is formed of a stranded wire material formed of multiple strands which each carry current but are insulated from each other. 
     
     
         19 . A system as in  claim 18 , wherein said stranded wire material is Litz wire. 
     
     
         20 . A system as in  claim 13 , further comprising at least one resonator, tuned to repeat a magnetic field at said first frequency. 
     
     
         21 . A system as in  claim 13 , wherein said first frequency is lower than 500 kHz. 
     
     
         22 . A system as in  claim 13 , further comprising a transmitter that has a high-Q resonator formed of a coil loop and a capacitor which makes a resonant circuit at said first frequency that has magnetic energy produced therein by a source of line power. 
     
     
         23 . A system as in  claim 22 , wherein said high-Q resonator in said receiver uses stranded wire in said coil loop. 
     
     
         24 . A system as in  claim 10 , wherein said high-Q resonator in said receiver uses magnetic material in said coil loop. 
     
     
         25 . A method of transmitting power to at least one high-Q resonator, comprising:
 using electrical power to create a signal having a first frequency of lower than 1 MHz; using a high-Q resonator which is self-resonant at said first frequency to transmit said signal; and using a second resonator a-that is activated by the transmitter to repeat said signal at said first frequency.   
     
     
         26 . A method as in  claim 25 , wherein said high-Q resonator includes an inductive loop, and a capacitor that brings the high-Q resonator to resonance at said first frequency. 
     
     
         27 . A method as in  claim 26 , wherein said high-Q resonator is formed of stranded wire formed of multiple strands which each carry current but are each insulated from one another. 
     
     
         28 . A method as in  claim 26 , wherein said inductive loop includes a magnetic material. 
     
     
         29 . A method as in  claim 25 , wherein said second resonator is formed of stranded wire. 
     
     
         30 . A method as in  claim 25 , wherein said second resonator includes a magnetic material. 
     
     
         31 . A wireless power transmitter system for transmitting power to at least one high-Q resonator, comprising:
 a connection to a source of line power;   a modulating part, which converts said line power to create a first frequency;   a transmitter part, including a transmitting high-Q resonator formed of a conductive loop with a capacitor that brings said high-Q resonator to resonance at said first frequency, and which produces a magnetic field based on said source of line power, said transmitter part having a Q factor at said frequency; and   at least a second resonator having no source of power connected to said second resonator, tuned to repeat a magnetic field produced by said transmitter.   
     
     
         32 . A system as in  claim 31 , wherein said Q factor is at least 1000. 
     
     
         33 . A system as in  claim 31 , wherein said transmitting high-Q resonator uses stranded wire for said conductive loop formed of multiple strands which each carry current but are each insulated from one another. 
     
     
         34 . A system as in  claim 31 , wherein said transmitting high-Q resonator uses a magnetic material inside said conductive loop. 
     
     
         35 . A system as in  claim 31 , wherein said first frequency is lower than 1 MHz. 
     
     
         36 . A system as in  claim 31 , further comprising a receiver that has a high-Q resonator formed of a coil loop and a capacitor which makes a resonant circuit at said first frequency, where said high-Q resonator has magnetic energy induced therein by said transmitter, and where said receiver produces output power. 
     
     
         37 . A system as in  claim 36 , wherein said high-Q resonator in said receiver uses stranded wire in said coil loop formed of multiple strands which each carry current but are each insulated from one another. 
     
     
         38 . A system as in  claim 36 , wherein said high-Q resonator in said receiver uses magnetic material in said coil loop. 
     
     
         39 . A wireless power receiver system for receiving power from at least one high-Q resonator, comprising:
 a receiver part, including a receiving high-Q resonator formed of a conductive loop with a capacitor that brings said high-Q resonator to resonance at a first frequency, and which receives a magnetic field,   at least one additional resonator having no source of power connected to said additional resonator, tuned to repeat a magnetic field received by a transmitter; and   a power output, which outputs power received by said receiver part.   
     
     
         40 . A system as in  claim 39 , wherein said receiving high-Q resonator uses stranded wire for said conductive loop formed of multiple strands which each carry current but are each insulated from one another. 
     
     
         41 . A system as in  claim 39 , wherein said receiving high-Q resonator uses a magnetic material inside said conductive loop. 
     
     
         42 . A system as in  claim 39 , wherein said first frequency is lower than 1 MHz. 
     
     
         43 . A wireless power transmitter system for transmitting power to at least one high-Q resonator, comprising:
 a connection to a source of line power;   a modulating part, which converts said line power to create a first frequency of lower than 1 MHz; and   a transmitter part, including a transmitting high-Q resonator formed of a conductive loop wound around a magnetic material, with a capacitor that brings said high-Q resonator to resonance at said first frequency, and which produces a magnetic field based on said source of line power.   
     
     
         44 . A system as in  claim 43 , wherein said transmitting high-Q resonator has a Q factor which is at least 300. 
     
     
         45 . A system as in  claim 43 , wherein said transmitting high-Q resonator uses stranded wire for said conductive loop formed of multiple strands which each carry current but are each insulated from one another. 
     
     
         46 . A system as in  claim 6 , wherein said stranded wire material is Litz wire. 
     
     
         47 . A system as in  claim 1 , further comprising at least one resonator, tuned to repeat a magnetic field produced by said transmitter. 
     
     
         48 . A wireless power receiver system for receiving power from at least one high-Q resonator, comprising:
 a receiver part, including a receiving high-Q resonator formed of a conductive loop wound around magnetic material, with a capacitor that brings said high-Q resonator to resonance at a first frequency, and which receives a magnetic field,   a power circuit which converts said magnetic field into electrical power, and which outputs power received by said receiver part.   
     
     
         49 . A system as in  claim 48 , wherein said receiving high-Q resonator uses stranded wire for said conductive loop formed of multiple strands which each carry current but are each insulated from one another. 
     
     
         50 . A system as in  claim 48 , wherein said first frequency is lower than 1 MHz. 
     
     
         51 . A system as in  claim 48 , wherein said first frequency is lower than 500 kHz. 
     
     
         52 . A method of transmitting power to at least one high-Q resonator, comprising:
 using electrical power to create a signal having a first frequency;   using a high-Q resonator which is resonant at said first frequency to transmit said signal; and   using an additional resonator that is activated by the transmitter to repeat said signal at said first frequency.   
     
     
         53 . A method as in  claim 52 , wherein said high-Q resonator which is resonant at a first frequency includes an inductive loop, and a capacitor that brings the high-Q resonator to resonance at said first frequency. 
     
     
         54 . A method as in  claim 53 , wherein said high-Q resonator is formed of stranded wire formed of multiple strands which each carry current but are each insulated from one another. 
     
     
         55 . A method as in  claim 53 , wherein said inductive loop includes a magnetic material. 
     
     
         56 . A method as in  claim 52 , wherein said additional resonator is formed of stranded wire. 
     
     
         57 . A method as in  claim 52 , wherein said additional resonator includes a magnetic material.