Non-contact power distribution system
November 24, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesTest circuit and method for matching an induction load to a solid state power supply Power control system for electrically driven vehicle Phase-stabilized, phase-coupled resonant circuit Interrupted resonance energy transfer system Inductive energization system and method for vehicles Power source Inductive power distribution system Technique for driving quadrature dual frequency RF resonators for magnetic resonance spectroscopy/imaging by four-inductive loop over coupling Resonant power supplies Inductive power pick-up coils InventorsAssigneeApplicationNo. 976582 filed on 11/24/1997US Classes:363/23, With automatic control of the magnitude of output voltage or current191/10, MAGNETIC INDUCTION307/104, ELECTROMAGNET OR HIGHLY INDUCTIVE SYSTEMS363/165With automatic frequency controlExaminersPrimary: Tso, Edward H.Assistant: Jardieu, Derek J. Attorney, Agent or FirmInternational ClassH02J 003/06Foreign Application Priority Data1992-05-10 NZAbstractAn inductively coupled power distribution system for moving vehicles, in which resonating primary circuits to distribute power for resonating secondary circuits to collect and use in an optimized manner. In order to have all circuits resonating at substantially the same frequency, devices which detect and adjust resonating components are used, such as a frequency drift compensator in which the present frequency is compared to a reference voltage and causes a driver to be ON or OFF accordingly. Switches are driven CLOSED or OPEN respectively and when CLOSED, supplementary capacitors are included with a main capacitor in a primary resonant circuit. Dithering or pulsed control provides a continuous control of resonance, as the system takes some milliseconds to respond.Field of SearchDouble-ended (i.e., push-pull), self-oscillating typeWith automatic control of the magnitude of output voltage or current With means to introduce or eliminate frequency components In inverter systems Thyristor type Positive and negative groups Transistor type With automatic frequency control Switched impedance Static switch Digitally controlled With capacitor ELECTROMAGNET OR HIGHLY INDUCTIVE SYSTEMS MAGNETIC INDUCTION | |
