Patent ID: 9107259
Filing Date: 2015-08-11
Classification: H02M,H05B

Abstract:
1. A power distribution system for distributing high frequency AC power from a current limited power source, the system comprising: a twisted pair of elongate conductors configured to be connected to the power source, the ends of the conductors furthest from the power source being connected to one another, wherein the conductors between adjacent turns of the twisted pair are moveable apart from one another to define an aperture there between, a power tapping element which is configured to be inserted at least partly through the aperture so that high frequency electrical power can be coupled inductively from the conductors to the power tapping element, a further conductor wound at least partly around the power tapping element so that the high frequency electrical power can be coupled inductively from the power tapping element to the further conductor, a synchronous rectification circuit connected to the further conductor to convert high frequency AC power in the further conductor to a DC power to power a load, and a rectifier in the synchronous rectification circuit to controllably short circuit the further conductor to stop or vary power being transmitted to the load by controlling a switch using a signal other than the high frequency electrical power coupled inductively from the power tapping element to the further conductor.