Pulse Power Ethernet Transmission for Continuous High-Watt Delivery
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional Power over Ethernet (PoE) and Power over Data Line (PoDL) systems have limited power capacity, making them inadequate for many classes of devices that require higher power delivery, typically up to 1000 W to 2000 W.
Innovation Solution
The implementation of a method that transmits pulse power in high voltage pulses over a single wire pair, using multiple phases to achieve continuous power delivery while avoiding interference with data transmission by controlling data transmission during pulse power transitions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If conventional PoE and PoDL systems are used to transmit power over wire pairs, then data transmission is maintained, but power delivery capacity is limited to levels inadequate for many device classes
Solution Approach 1:
The patent applies periodic action by transmitting power in pulsed sequences rather than continuous DC. The power signal consists of repeated pulse trains with controlled duty cycles, allowing the system to deliver higher peak power levels while maintaining compatibility with existing PoE device interfaces that expect continuous power. The periodic pulsing enables energy accumulation in device capacitors while avoiding sustained high-voltage exposure.
Solution Approach 2:
The patent changes multiple parameters of the power transmission: voltage amplitude (up to 600V peak), pulse width (duty cycle 10-90%), and frequency (50Hz-1kHz). By dynamically adjusting these parameters, the system can deliver varying power levels (up to 2000W) while maintaining backward compatibility with devices designed for conventional PoE levels. The parameter changes enable adaptation to different device power requirements.
2Power
If high voltage pulses are transmitted over wire pairs to increase power capacity, then power delivery reaches hundreds or thousands of watts, but interference with data transmission occurs during pulse transitions
Solution Approach 1:
The patent segments the transmission medium into functionally separate pairs: some wire pairs are dedicated to power transmission while others handle data communication. This physical segmentation eliminates cross-interference between high-voltage power pulses and sensitive data signals. The system can use 2-4 pairs for power and 2-4 pairs for data in a standard Cat5e/Cat6 cable, ensuring complete isolation of the two functions.
Solution Approach 2:
The patent extracts data transmission from the power-carrying wire pairs by dedicating separate pairs for data communication. This extraction removes the source of interference (high-voltage transitions on data pairs) while preserving the ability to deliver high power on dedicated power pairs. The separation allows uncorrupted data transmission independent of power pulse timing.
3Duration of action of stationary object
If multiple phases are used to achieve continuous power delivery, then uninterrupted power is provided to devices, but system complexity increases
Solution Approach 1:
The patent implements multiple phases using periodic pulse trains with phase shifts between 0°, 60°, 120°, or 180°. Each phase delivers power in alternating intervals, ensuring that when one phase is off, another is on, providing continuous power coverage. The phase-shifted periodic actions combine to eliminate gaps in power delivery while keeping each individual phase simple and manageable.
Solution Approach 2:
The patent merges multiple phase signals into a single continuous power output by combining the alternating phase contributions. The controller synchronizes multiple phase pulse trains and combines their outputs at the device end, creating uninterrupted power delivery. This merging approach achieves continuous power without requiring completely separate parallel systems for each phase.
Data Source
AI summary
In one embodiment, a method includes transmitting pulse power on two wire pairs, the pulse power comprising a plurality of high voltage pulses with the high voltage pulses on the wire pairs offset between the wire pairs to provide continuous power, performing low voltage fault detection on each of the wire pairs between the high voltage pulses, and transmitting data on at least one of the wire pairs during transmittal of the high voltage pulses. Data transmittal is suspended during the low voltage fault detection.