A standard poe and mandatory non-standard poe integrated receiving power supply circuit

Abstract

A standard POE and mandatory non-standard POE integrated powered power supply circuit is set between the POE network socket and the powered equipment, including: the standard power supply module has a line impedance that conforms to the standard protocol, and conducts when the input voltage is greater than the set value. Through, the voltage input by the POE network socket is sent to the DC-DC step-down regulator module; the non-standard jumper module can switch the non-standard power supply line, the power supply is not tested, directly reaches the network socket through the network cable, and then directly sends it to the network socket. DC-DC step-down voltage regulator module; the DC-DC step-down voltage regulator module steps down and stabilizes the input DC voltage, and supplies power to the powered equipment; the input end of the standard power supply module is connected to the POE network socket, and the output end is connected to the DC The input terminal of the ‑DC step-down regulator module, the output terminal of the DC‑DC step-down regulator module is connected to the powered equipment, and the non-standard jumper module is connected in parallel to both ends of the standard power supply module. The invention integrates standard POE and non-standard POE power supply modes into one, avoids repeated production of different power supply types of equipment, and is compatible with the user's power-taking environment to the greatest 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.

Images