APM-420A 电源模块 具有小体积、高集成度、高性价

型号：APM-420A

APM-420A 电源模块是一种可以直接贴装在印刷电路板上的电源供应器，其特点是可为专用集成电路（ASIC）、数字信号处理器 (DSP)、微处理器、存储器、现场可编程门阵列 (FPGA) 及其他数字或模拟负载提供供电。按变换方式，电源模块一般分为AC转DC或DC转DC。

一个完整的电源模块一般由输入整流滤波器、单片开关电源、高频变压器、漏级钳位保护电路、光耦反馈电路、输出整流滤波器、偏置电路等部分组成。电源模块通过输入整流滤波器一般可以适配交流85~265V或直流100~370V的输入电压范围，频率有47~400Hz选择，常规一般为50/60Hz。

由于电源模块具有小体积、高集成度、高性价比和最佳性能指标，只需要最简的外围电路，配上少量分立式元件即可使用。当产品设计需更改时，只需并联或替换电源模块即可。

APM-420A电源模块的应用十分广泛，尤其在交换设备、接入设备、移动通讯、微波通讯以及光传输、路由器等通信领域和汽车电子、航空航天等行业应用十分广泛。

请注意，操作温度和输入电压也是选择电源模块时需要考虑的因素。一般温度操作可分成商规(0℃~ 60℃)、工规(-25℃~ 71℃)、军规(-55℃~ 85℃)等，在选择DC/DC 电源模块时需考虑实际系统操作温度范围，选用合适的温度等级。输入电压指的是DC/DC电源模块能正常操作的范围，在选用电源模块输入电压范围时，视输入电压变动范围，业界有二倍压输入及四倍压输入可选择。

APM-420A 电源模块 具有小体积、高集成度、高性价

Model: APM-420A

The APM-420A power module is a power supply that can be mounted directly on a printed circuit board and is characterized by providing power for application-specific integrated circuits (ASics), digital signal processors (DSPS), microprocessors, memory, field programmable gate arrays (FPgas), and other digital or analog loads. According to the conversion mode, the power module is generally divided into AC to DC or DC to DC.

A complete power module is generally composed of input rectifier filter, single-chip switching power supply, high-frequency transformer, leakage clamp protection circuit, optocoupler feedback circuit, output rectifier filter, bias circuit and other parts. The power module can generally adapt the input voltage range of AC 85~265V or DC 100~370V through the input rectifier filter, and the frequency is 47~400Hz, and the general frequency is 50/60Hz.

Because the power module has a small size, high integration, high cost performance and the best performance indicators, only the simplest peripheral circuit is required, and a small number of discrete components can be used. When the product design needs to be changed, just parallel or replace the power module.

APM-420A power module is widely used, especially in switching equipment, access equipment, mobile communication, microwave communication, optical transmission, router and other communication fields and automotive electronics, aerospace and other industries.

Please note that operating temperature and input voltage are also factors to consider when selecting a power module. General temperature operation can be divided into business rules (0 ° C ~ 60 ° C), work rules (-25 ° C ~ 71 ° C), military rules (-55 ° C ~ 85 ° C), etc., in the selection of DC/DC power module need to consider the actual system operating temperature range, choose the appropriate temperature level. The input voltage refers to the range in which the DC/DC power module can operate normally. When selecting the input voltage range of the power module, the industry has two voltage inputs and four voltage inputs to choose from, depending on the input voltage range.