Standard POE and mandatory non-standard POE integrated powered power supply circuit

Abstract

The invention provides a standard POE and mandatory non-standard POE integrated powered power supply circuit, which is arranged between a POE network socket and a powered device. The standard POE and mandatory non-standard POE integrated powered power supply circuit comprises a standard power supply module which has a line impedance that conforms to a standard protocol, and when an input voltage is greater than a set value, the standard power supply module is conducted and a voltage inputted by the POE network socket is sent to a DC-DC step-down and voltage stabilization module; non-standard jumper modules, which can perform switching of a non-standard power supply circuit, and without detection, power directly reaches the network socket through a network cable, and then the power is directly sent to the DC-DC step-down and voltage stabilization module; the DC-DC step-down and voltage stabilization module performs voltage reduction and voltage stabilization on an inputted direct current voltage and supplies power to the powered device; an input end of the standard power supply module is connected with the POE network socket, and an output end of the standard power supply module is connected with an input end of the DC-DC step-down and voltage stabilization module; an output end of the DC-DC step-down and voltage stabilization module is connected with the powered device; and the non-standard jumper modules are connected in parallel at the two ends of the standard power supply module. The standard POE and mandatory non-standard POE integrated powered power supply circuit provided by the invention integrates the standard POE and non-standard POE power supply modes as a whole, which can avoid generating different types of equipment repeatedly, and make a power utilization environment of a user to be compatible to the maximum extent.

Description

technical field [0001] The invention relates to a POE power receiving switch, in particular to a standard POE and mandatory non-standard POE integrated power receiving power supply circuit. Background technique [0002] POE power supply technology can provide some IP-based terminals (such as IP telephones, wireless LAN access points AP, network cameras, network access control, patrol card readers) without any changes to the existing Ethernet wiring infrastructure. etc.) while transmitting data signals, it can also provide DC power supply for such devices. The standard protocol POE power supply can use 12, 36 data line pairs to supply power, and can also use 45, 78 line pairs to supply power; while the mandatory POE power supply generally uses 45, 78 line pairs to supply power. The existing POE power receiving circuit is divided into two different circuits: standard POE power receiving and non-standard forced power receiving. The working process of the standard POE power su...

AI Technical Summary

Problems solved by technology

However, all products on the market cannot integrate the two into one circuit board, resulting in two sets of products having to be designed, and users cannot freely switch between the two power supply modes, resulting in high cost of use and poor convenience.

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