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In the rapid development of fields such as the Internet of Things, intelligent security, and industrial automation, Power over Ethernet (PoE) technology has become the mainstream choice for device power supply due to its advantages of simplifying wiring and reducing deployment costs. As a globally renowned distributor of electronic components, Shenzhen Mingjiada Electronics Co., Ltd. has long been supplying ADI's PoE interface controller product line, covering power supply equipment (PSE) controllers and power receiving equipment (PD) controllers. It supports multiple power levels ranging from 13W to 90W, meeting the efficient power supply requirements in different scenarios.

I. Core Products

Power Supply equipment (PSE) controller

ADI's PSE controller supports multi-port management, reduces power consumption through a 0.15Ω detection resistor, and adopts a 4-point PD detection scheme to avoid misjudgment. Its characteristics include:

Intelligent power allocation: Automatically identify the power level of the power-receiving device (PD) and dynamically adjust the output power. For example, allocate 13W (802.3af) to a security camera and provide 71W (802.3bt) to a high-performance wireless AP.

High reliability protection: Integrated cable discharge protection, 80V withstand voltage analog pins and over-temperature protection function, in compliance with IEC61000 standard, far exceeding ESD and surge test requirements.

Power receiving device (PD) controller

ADI's PD controllers (such as MP8030GQJ-Z) integrate PD interfaces and efficient DC/DC converters, significantly simplifying the design complexity. Its technical highlights include:

Flexible topology support: Compatible with various power supply architectures such as flyback and forward, supporting primary side regulation (PSR) and secondary side regulation (SSR), adapting to different cost and efficiency requirements.

Intelligent power switching: Equipped with a 100V hot-swapable MOSFET (for applications ≤51W) and an external FET driver (for applications >51W), it supports seamless switching between adapters and PoE power, reducing power loss.

Ii. Typical Application Scenarios

The ADI PoE controller, with its characteristics of high energy efficiency and stability, is widely used in the following fields:

Intelligent security system: Provides stable power supply for IP cameras and access control controllers, and supports remote monitoring and rapid deployment. For example, the MP8030GQJ-Z can optimize the power efficiency of the camera to over 90% by integrating a flyback controller.

Communication infrastructure: Wireless aps, VoIP phones and other devices achieve high-power transmission through the PoE++ standard, meeting the power supply requirements of 5G base stations and edge computing nodes.

Industrial Internet of Things (IIoT) : In factory automation equipment, PoE technology simplifies the wiring of sensors and controllers, and at the same time supports high-power motor drive devices through LTPoE++.

New energy and energy storage systems: PoE controllers are used in photovoltaic monitoring equipment to ensure the stability of data transmission and power supply, and enhance the overall energy efficiency of the system.

Iii. The Supply Chain and Service Advantages of Mingjiada Electronics

As a long-term partner of ADI, Mingjiada Electronics provides one-stop procurement services for customers through a direct supply model from the original factory and a safety stock model:

Full category coverage: It covers the entire series of PoE controllers from ADI, including PSE, PD and the corresponding power management chips (such as MP8030GQJ-Z), and supports IEEE 802.3af/at/bt and LTPoE++ standards.

Rapid delivery capability: Relying on a multi-location warehousing system, domestic orders are dispatched within 48 hours, and urgent demands are responded to first to ensure the continuity of customers' production lines.

For exclusive product quotations, please contact Mingjiada Electronics:

Telephone: +86 13410018555 (Mr. Chen)

Email: sales@hkmjd.com

Official website: www.hkmjd.com