Method and apparatus for transmitting combined power, control and data through an isolation barrier

摘要

Method and apparatus for transmitting combined power and data. In one embodiment, the apparatus comprises an isolation barrier; a drive controller for generating a first waveform comprising a plurality of data signals for transmitting different types of data, where the drive controller couples the first waveform to a first side of the isolation barrier to produce a second waveform on a second side of the isolation barrier; and a circuit controller coupled to the second side of the isolation barrier, where the circuit controller is powered by the second waveform, and where the circuit controller controls a circuit based on the plurality of data signals.

主权项

1. Apparatus for transmitting combined power and data, comprising:
an isolation barrier; a drive controller for generating a first waveform comprising a plurality of data signals for transmitting different types of data, wherein the drive controller couples the first waveform to a first side of the isolation barrier to produce a second waveform on a second side of the isolation barrier; a circuit controller coupled to the second side of the isolation barrier, wherein the circuit controller is powered by the second waveform, and wherein the circuit controller controls a circuit based on the plurality of data signals; and a filter coupled to the second side of the isolation barrier and to the circuit controller, wherein the filter filters the second waveform to obtain a first data signal and a second data signal, and couples the first and the second data signals to the circuit controller.