开关电源系统外置下电控制器的测试应用

Test and Application of External Low Voltage Disconnect Controller for Switching Mode Power Supply System

开关电源下电功能的好坏,对于通信负载而言极其重要。为消除开关电源系统下电控制不良的影响,文中论述了一款新型的开关电源系统外置下电控制器的原理,控制流程和实现的功能。以中兴电源系统(CSU401S监控)为例,对外置下电控制器在开关电源机柜中的应用进行了实际测试,给出了测试结果。安装该下电控制器设备,就能充分地完成电源系统的下电功能,实现对蓄电池实实在在的保护作用。

The low voltage disconnect function of switching mode power supply is very important for communication load. In order to eliminate the influence of the low voltage disconnect control in the switching mode power supply system, the principle, the control flow and the function of a new type of switch power system external low voltage disconnect con- troller were discussed in this paper. Taking ZTE power system （CSU401S monitoring） as an example, the application of the external low voltage disconnect controller in the switch mode power supply cabinet was tested and the test results were given. With the installation of the low voltage disconnect controller, the power supply function of the power system can he fully realized, and the real protection function of the battery can be realized.