Active power over ethernet control apparatus with low power consumption

Abstract

An active power over Ethernet control apparatus with low power consumption includes a control unit and a low-power-consumption control circuit. The control unit is installed inside a power sourcing equipment. The low-power-consumption control circuit includes a detecting circuit, a handshaking circuit, and a self-holding circuit. The detecting circuit provides a first control signal. The handshaking circuit receives the first control signal and provides a second control signal. The self-holding circuit receives the second control signal. When a powered device is not connected to the power sourcing equipment, a power-supplying path from the power sourcing equipment to the powered device is disconnected. When the powered device is connected to the power sourcing equipment, the handshaking circuit is controlled by the first control signal and the self-holding circuit is controlled by the second control signal to make the power-supplying path be connected.

Description

BACKGROUNDTechnical Field[0001]The present disclosure relates to an active power over Ethernet control apparatus, and more particularly to an active power over Ethernet control apparatus with low power consumption.Description of Related Art[0002]The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art.[0003]Power over Ethernet (PoE) is a technology that can transmit power and data to a device through a twisted pair in an Ethernet network. All devices such as voice over IP (VoW), wireless base stations, network cameras, hubs, and computers can be powered by the PoE technology. Since the electronic devices can be powered through the Ethernet network in the PoE without additional power outlet, the time and cost of configuring power wires can be eliminated, so that the cost of the entire device system can be relatively reduced.[0004]In general, a PoE device can be divided into two parts, one of whi...

AI Technical Summary

Benefits of technology

The solution reduces no-load mode power consumption to less than or equal to 100 milliwatts, meeting the Level VI Energy Efficiency Requirements by minimizing energy usage during idle states.

Problems solved by technology

In contrast, since the passive PoE cannot actively detect power supply, the PSE must provide power regardless of whether the connected device requires power.

However, the internal circuit components (especially the switching components) consume a large amount of energy under a no-load condition since the active PoE actively detects power supply, and therefore it fails to meet the Level VI Energy Efficiency Requirements for U.S. DoE (Department of Energy).

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