STEVAL-
POE002V1，参考设计是一款用于受电设备 (PD) 的两级转换器，能够从适当的 4 对 PoE 电源设备 (PSE) 或外部电源提供高达 40W (5V/8A) 的直流功率。辅助供给。第一阶段是基于具有集成全有源桥整流功能的 PM8805
控制器的以太网接口。该 PoE 控制器符合第三代 IEEE 802.3bt 规范（以及之前的 802.3af/at 标准），具有改进的功能和增加的功率容量，为 PoE 网络带来新的应用可能性，包括销售点和零售物流设备。第二级是围绕固定频率反激拓扑设计的 DC-DC 转换器，由可配置 PM8804 PWM 控制器管理，并通过
栅极驱动器变压器进行次级同步整流
说明
-
STEVAL-POE002V1, Reference Design is a two-stage converter for a powered device (PD), and is able to deliver up to 40W (5V/8A) DC from appropriate 4-pair PoE power sourcing equipment (PSE), or an external auxiliary supply. The first stage is the Ethernet interface is based on the PM8805 controller with integrated full active bridge rectification. The PoE controller is compliant with the third generation IEEE 802.3bt specification (as well as the preceding 802.3af/at standards), with improved features and increased power capacity that allow new application possibilities for PoE networks, including point of sales and retail logistics devices. The second stage is the DC-DC converter designed around a fixed frequency flyback topology managed by the configurable PM8804 PWM controller, with secondary synchronous rectification via a gate driver transformer
主要特色
-
Conversion Type
DC to DC
-
Input Voltage
40 to 60 V
-
Output Voltage
5 V
-
Output Current
8 A
-
Output Power
40 W
-
Efficiency
91 %
-
Topology
Flyback- Synchronous|PoE
京公网安备 11010802033920号
Copyright © 2005-2024 EEWORLD.com.cn, Inc. All rights reserved
ILD8150XUMA1
