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Lamp with inductive connection to light engine

  • US 10,473,273 B1
  • Filed: 06/15/2018
  • Issued: 11/12/2019
  • Est. Priority Date: 06/15/2018
  • Status: Active Grant
First Claim
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1. A lamp comprising:

  • a housing including a light projecting end and a base having an electrical connector for connection with a lamp fixture;

    a light engine positioned at the light projecting end of the housing;

    a driver assembly in electrical communication with the electrical connector of the base of the housing; and

    an inductive connection positioned between the driver assembly and the light engine, the inductive connection comprises a transmission coil in the driver assembly, and a receiver coil in the light engine that provides for the transfer of energy magnetically from the driver assembly to the light engine, and the driver assembly comprises a printed circuit board including an electromagnetic interference (EMI) rectifier, a power factor correction (PFC) regulator, and a resonant converter stage, wherein the electromagnetic interference (EMI) rectifier is in physical electrical connection with an electrical connector of the base, and the resonant converter stage is in physical electrical connection with the inductive transmission coil (Tx) of the inductive connection;

    wherein the light engine includes a light engine printed circuit board (PCB), the light engine PCB includes a network matching in physical electrical connection with the inductive receiver coil (Rx), a rectifier and filter portion that converts the AC voltage from the inductive receiver coil to DC voltage, an output regulator that regulates the DC voltage to an amount for an LED load for use by the light engine, and an LED load portion in physical electrical connection with the light engine.

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