1
Roy W Kuennen, Scott A Mollema, David W Baarman, Ronald C Markham, Dennis J Denen: Inductively coupled ballast circuit. Access Business Group International, Warner Norcross & Judd, November 30, 2004: US06825620 (314 worldwide citation)

A ballast circuit is disclosed for inductively providing power to a load. The ballast circuit includes an oscillator, a driver, a switching circuit, a resonant tank circuit and a current sensing circuit. The current sensing circuit provides a current feedback signal to the oscillator that is represe ...


2
David W Baarman: Inductively powered lamp assembly. Access Business Group International, Warner Norcross & Judd, May 4, 2004: US06731071 (264 worldwide citation)

A lamp assembly configured to inductively receive power from a primary coil. The lamp assembly includes a lamp circuit including a secondary and a lamp connected in series. In a first aspect, the lamp circuit includes a capacitor connected in series with the lamp and the secondary to tune the circui ...


3
David W Baarman: Portable inductive power station. Access Business Group International, Warner Norcross & Judd, December 9, 2008: US07462951 (255 worldwide citation)

An inductive recharging station has an inductive power supply and a portable power station. The portable power station is movable with respect to the inductive power supply. In order to recharge portable devices, the devices are placed within the portable power station. When the portable power stati ...


4
Lily Ka Lai Cheng, James Westwood Hay, Pilgrim Giles William Beart: Contact-less power transfer. Access Business Group International, Warner Norcross & Judd, April 28, 2009: US07525283 (246 worldwide citation)

There is disclosed a system and method for transferring power without requiring direct electrical conductive contacts. There is provided a primary unit having a power supply and a substantially laminar charging surface having at least one conductor that generates an electromagnetic field when a curr ...


5
David W Baarman: Adaptive inductive power supply. Access Business Group International, Warner Norcross & Judd, May 1, 2007: US07212414 (244 worldwide citation)

A contactless power supply has a dynamically configurable tank circuit powered by an inverter. The contactless power supply is inductively coupled to one or more loads. The inverter is connected to a DC power source. When loads are added or removed from the system, the contactless power supply is ca ...


6
Roy W Kuennen, David W Baarman, Scott A Mollema, Ronald C Markham, Dennis J Dennen: Inductively coupled ballast circuit. Access Business Group International, Warner Norcross & Judd, June 10, 2008: US07385357 (243 worldwide citation)

A ballast circuit is disclosed for inductively providing power to a load. The ballast circuit includes an oscillator, a driver, a switching circuit, a resonant tank circuit and a current sensing circuit. The current sensing circuit provides a current feedback signal to the oscillator that is represe ...


7
David W Baarman, Stephen J McPhilliamy, Christopher Houghton: Inductively powered apparatus. Access Business Group International, Warner Norcross & Judd, October 24, 2006: US07126450 (240 worldwide citation)

An inductive power supply system for providing power to one or more inductively powered devices. The system includes a mechanism for varying the physical distance or the respective orientation between the primary coil and secondary coil to control the amount of power supplied to the inductively powe ...


8
David W Baarman, Terry L Lautzenheiser: Inductive coil assembly. Access Business Group International, Warner Norcross & Judd, November 7, 2006: US07132918 (235 worldwide citation)

An inductive coil assembly having multiple coils arranged at distinct orientations to provide efficient inductive coupling of power or communications or both to a device when the device is arranged at different orientations with respect to the inductive primary coil. In one embodiment, the inductive ...


9
David W Baarman: Inductively powered lamp assembly. Access Business Group International, Warner Norcross & Judd, July 12, 2005: US06917163 (226 worldwide citation)

A lamp assembly configured to inductively receive power from a primary coil. The inductively powered lamp assembly includes a lamp circuit including a secondary and a lamp connected in series. In a first aspect, the lamp circuit includes a capacitor connected in series with the lamp and the secondar ...


10
David W Baarman: Inductively powered lamp assembly. Access Business Group International, Warner Norcross & Judd, November 2, 2004: US06812645 (224 worldwide citation)

A lamp assembly configured to inductively receive power from a primary coil. The lamp assembly includes a lamp circuit including a secondary and a lamp connected in series. In a first aspect, the lamp circuit includes a capacitor connected in series with the lamp and the secondary to tune the circui ...