通信系统中二次电源保护电路的研究

稳定可靠的电源,在低电压、高工作频率、大功耗等通信系统中至关重要.论述了在通信系统二次电源电路中DC/DC电源变换模块前置电路的滤波和保护电路,以及在采用电源热备份集中供电的系统中,拔插单板时抑止浪涌电流的电源缓启电路.实测结果表明:电路可以显著抑止电源纹波以及单板拔插时的浪涌电流,提高电源系统的稳定性,电路在通信系统中具有一定的应用价值.

Research on Two Power Supply Protection Circuit in Communication System

Stabilized dependable power supply is of extraordinary importance in communication system, which has low voltage, high work frequency, and high power consumption etc. This paper discussed filtering and protection circuit of the DC/DC power supply transformation mold in two power supply circuit of the communication system, and slow switch on circuit of power supply which prevented surging current in the adoption heat of the duplicate concentration power supply system in each single plank plucking. The experiments indicated that the circuit can prevent source wave and surging current in each single plank plucking markedly, and enhanced stability of the source system. The circuit has definite applied value in communication system.