125840-02 电源模块可以实现升压变换、降压变换、交直流转换等功能

Description

125840-02 电源模块可以实现升压变换、降压变换、交直流转换等功能

125840-02电源模块的作用主要体现在以下几个方面：

隔离：在强电弱电隔离、IGBT隔离驱动、浪涌隔离保护、雷电隔离保护等方面，电源模块起到安全隔离的作用。同时，它还可以实现噪声隔离，包括模拟电路与数字电路隔离、强弱信号隔离，以及接地环路消除等。

保护：电源模块具有短路保护、过压保护、欠压保护、过流保护等功能，并可以提供其他保护措施。

电压变换：电源模块可以实现升压变换、降压变换、交直流转换等功能，满足各种电压变换需求。

稳压：电源模块具备交流市电供电、远程直流供电、分布式电源供电系统、电池供电等功能，提供稳定的电压输出。

降噪：电源模块具有有源滤波功能，有效降低噪声。

此外，一些电源模块产品可以通过TRIM或ADJ（可调节）输出引脚对输出电压进行一定范围内的调节。这种调节通常可以通过电位器或电阻实现，调节范围通常为±10%。对于需要更高要求的电源系统，应增加输入滤波网络。同时，为了防止输入电源瞬态高压损坏电源模块，建议在输入端接瞬态吸收二极管并配合保险丝使用。

在应用时，125840-02 需要注意电源模块的遥控开关电路操作方式，以及电源模块的组合方式。其中，并联扩容可以将相同电源模块输出端并联，以增强输出能力；冗余热备份并联则是将相同的电源模块输出端通过二极管后并联，以提高电源系统的可靠性；串联扩容则是将相同模块输出端串联，使输出电压倍增、功率增加。

125840-02 电源模块可以实现升压变换、降压变换、交直流转换等功能

125840-02 Power module functions are mainly reflected in the following aspects:

Isolation: In terms of strong and weak current isolation, IGBT isolation drive, surge isolation protection, lightning isolation protection, etc., the power module plays a safe isolation role. At the same time, it can also achieve noise isolation, including analog circuit and digital circuit isolation, strong and weak signal isolation, and ground loop elimination.

Protection: The power module provides short-circuit protection, overvoltage protection, undervoltage protection, overcurrent protection, and other protection measures.

Voltage conversion: The power module can achieve boost conversion, buck conversion, AC/DC conversion and other functions to meet various voltage conversion requirements.

Voltage regulator: The PSU provides AC mains power supply, remote DC power supply, distributed power supply system, and battery power supply to provide stable voltage output.

Noise reduction: The power module has the active filter function to effectively reduce noise.

In addition, some power module products can adjust the output voltage within a certain range through TRIM or ADJ (adjustable) output pins. This adjustment can usually be achieved by a potentiometer or resistor, and the adjustment range is usually ±10%. For power systems that require higher requirements, input filtering networks should be added. At the same time, in order to prevent the transient high voltage of the input power supply from damaging the power module, it is recommended to connect the transient absorption diode at the input end and use it with the fuse.

In the application, 125840-02 need to pay attention to the remote control switch circuit operation mode of the power module, and the combination mode of the power module. In parallel expansion, the output terminals of the same power module can be connected in parallel to enhance the output capability. The redundant thermal backup parallel is to parallel the output end of the same power module through the diode to improve the reliability of the power system. In series expansion, the output end of the same module is connected in series to multiply the output voltage and increase the power.