POWER GENERATOR AND POWER GENERATION SYSTEM
First Claim
1. A power generator comprising:
- a power generating section that outputs DC energy;
an oscillator that converts the DC energy into RF energy having a frequency f0;
a first antenna that transmits the RF energy, the first antenna including a first inductor and a first capacitor that are connected together in series to form a series resonant circuit with a resonant frequency fT;
a second antenna that receives, by coupling a resonant magnetic field, at least a part of the RF energy that has been transmitted by the first antenna, the second antenna including a second inductor and a second capacitor that are connected in parallel with each other to form a parallel resonant circuit with a resonant frequency fR; and
an output converting section that converts the RF energy that has been supplied from the second antenna into AC energy having a lower frequency than the RF energy,wherein the resonant frequencies fT and fR are set to be substantially equal to the frequency f0 of the RF energy, andif the oscillator has a voltage step-up ratio Voc,the output converting section has a voltage step-up ratio Vtr,the first inductor has an inductance L1,the second inductor has an inductance L2, andthe first and second antennas have a coupling coefficient k,the power generator satisfies (L2/L1) (k/(Voc×
Vtr))2.
3 Assignments
0 Petitions
Accused Products
Abstract
A power generator according to the present invention includes: a power generating section (101) for outputting DC energy; an oscillator (103) for converting the DC energy into RF energy having a frequency f0; a first antenna (107) for transmitting the RF energy; a second antenna, which receives, by coupling a resonant magnetic field, at least a part of the RF energy transmitted by the first antenna (107); and an output converting section (120) for converting the RF energy supplied from the second antenna (109) into AC energy having a lower frequency than the RF energy. If the oscillator (103) has a voltage step-up ratio Voc, the output converting section (120) has a voltage step-up ratio Vtr, the first inductor (107a) of the first antenna (107) has an inductance L1, the second inductor (109a) of the second antenna (109) has an inductance L2, and the first and second antennas (107, 109) have a coupling coefficient k, the power generator satisfies (L2/L1)≧(k/(Voc×Vtr))2.
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Citations
13 Claims
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1. A power generator comprising:
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a power generating section that outputs DC energy; an oscillator that converts the DC energy into RF energy having a frequency f0; a first antenna that transmits the RF energy, the first antenna including a first inductor and a first capacitor that are connected together in series to form a series resonant circuit with a resonant frequency fT; a second antenna that receives, by coupling a resonant magnetic field, at least a part of the RF energy that has been transmitted by the first antenna, the second antenna including a second inductor and a second capacitor that are connected in parallel with each other to form a parallel resonant circuit with a resonant frequency fR; and an output converting section that converts the RF energy that has been supplied from the second antenna into AC energy having a lower frequency than the RF energy, wherein the resonant frequencies fT and fR are set to be substantially equal to the frequency f0 of the RF energy, and if the oscillator has a voltage step-up ratio Voc, the output converting section has a voltage step-up ratio Vtr, the first inductor has an inductance L1, the second inductor has an inductance L2, and the first and second antennas have a coupling coefficient k, the power generator satisfies (L2/L1) (k/(Voc×
Vtr))2. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A power generation system comprising:
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a number of power generating and voltage increasing sections; and an output converting section, in which at least two of the power generating and voltage increasing sections have their output terminals connected in parallel with each other and which converts RF energy, supplied from the output terminals, into AC energy having a lower frequency than the RF energy, and wherein each of the at least two power generating and voltage increasing sections includes; a power generating section that outputs DC energy; an oscillator that converts the DC energy into RF energy having a frequency f0; a first antenna that transmits the RF energy, the first antenna including a first inductor and a first capacitor that are connected together in series to form a series resonant circuit with a resonant frequency fT; and a second antenna that receives, by coupling a resonant magnetic field, at least a part of the RF energy that has been transmitted by the first antenna, the second antenna including a second inductor and a second capacitor that are connected in parallel with each other to form a parallel resonant circuit with a resonant frequency fR and supplying the RF energy to the output terminals, and wherein the resonant frequencies fT and fR are set to be substantially equal to the frequency f0 of the RF energy, and if the oscillator has a voltage step-up ratio Voc, the output converting section has a voltage step-up ratio Vtr, the first inductor has an inductance L1, the second inductor has an inductance L2, and the first and second antennas have a coupling coefficient k, the power generation system satisfies (L2/L1)≧
(k/(Voc×
vtr))2.
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Specification