About 151 results
https://drivepatents.com/patents/1010897 · 20 Jul 2011
An apparatus (100) for generating an alternating magnetic field having an effective power and comprising a first magnetic field component and a second magnetic field component, the apparatus (100) comprising a first inductive loop (110) for generating the ...
https://drivepatents.com/patents/1012402 · 1 Jun 2011
A circuit board assembly includes a multiple layer substrate, a wireless power transmitter control module, a wireless power coil assembly, and a plurality of ICs. The wireless power transmitter control module is supported by a layer of the multiple layer s...
https://drivepatents.com/patents/1012400 · 1 Jun 2011
Power is fed from a feeding coil L2 to a receiving coil L3 by magnetic resonance. A VCO 202 alternately turns ON/OFF switching transistors Q1 and Q2 at a drive frequency fo, whereby AC power is fed to the feeding coil L2, and then the AC power is fed from ...
https://drivepatents.com/patents/1013332 · 4 May 2011
Power is fed from a feeding coil to a receiving coil by magnetic resonance. A drive circuit outputs an IN signal generated by an oscillator as a DR signal to alternately turn ON/OFF switching transistors at a resonance frequency, whereby AC current is fed ...
https://drivepatents.com/patents/1013302 · 4 May 2011
Power is fed from a feeding coil L2 to a receiving coil L3 by magnetic resonance. A VCO alternately turns ON/OFF switching transistors Q1 and Q2 at a drive frequency fo, whereby AC current is fed to the feeding coil L2, and then the AC current is fed from ...
https://drivepatents.com/patents/1013638 · 20 Apr 2011
A wireless power transmission device (110), a wireless power transmission control device, and a wireless power transmission method are provided. A coupling frequency between a source resonator (111) and a target resonator (121) is determined. A transmissio...
https://drivepatents.com/patents/1013669 · 20 Apr 2011
Power is transmitted from a feeding coil L2 to a receiving coil L3 by magnetic resonance. A VCO 202 alternately turns ON/OFF switching transistors Q1 and Q2 to feed AC current to the feeding coil L2, whereby the AC power is fed from the feeding coil L2 to ...
https://drivepatents.com/patents/1013883 · 13 Apr 2011
Power is fed from a feeding coil L2 to a receiving coil L3 by magnetic resonance. An oscillator 202 alternately turns ON/OFF switching transistors Q1 and Q2 to cause AC current IS of drive frequency fo to flow in a transformer T2 primary coil Lb. The AC cu...
https://drivepatents.com/patents/1014337 · 6 Apr 2011
The invention relates to a high-frequency inductive coupling power transfer system with SP compensation in the primary and which is suitable both for series- and parallel-compensated secondaries, i.e. with a capacitor in series followed by a capacitor in p...
https://drivepatents.com/patents/1015114 · 9 Mar 2011
Power is transmitted from a feeding coil L2 to a receiving coil L2 by magnetic resonance. A power circuit 200 turns ON/OFF switching transistors Q1 and Q2 to feed AC current to an exciting circuit 110, whereby the AC power is fed from an exciting coil L1 t...