Direct current switch power supply transforming circuit

直流开关电源转换线路

Abstract

本实用新型涉及一种直流开关电源转换线路,包括浪涌保护器、输入低通滤波器、直流开关电源芯片、限流器以及电磁兼容性滤波器。浪涌保护器的输入端连接直流电压输入,其输出端连接输入低通滤波器的输入端。输入低通滤波器的输出端连接直流开关电源芯片的输入端。直流开关电源芯片的输出端连接限流器的输入端。限流器的输出端连接电磁兼容性滤波器的输入端。电磁兼容性滤波器的输出端连接直流电压输出。电磁兼容性滤波器设有将输出电压反馈发送到直流开关电源芯片的反馈端。采用本实用新型的直流开关电源转换线路,使设备简洁化,提高工作效率,减小机箱体积,降低功耗,增加设备稳定性。
The utility model relates to a direct current switch power supply transforming circuit, which comprises a surge protector, an input low pass filter, a direct current switch power supply chip, a current limiter and an electromagnetic compatibility filter. The input end of the surge protector is connected with the direct current input, and the output end thereof is connected with the input end of the input low pass filter. The output end of the input low pass filter is connected with the input end of the direct current switch power supply chip. The output end of the direct current switch power supply chip is connected with the input end of the current limiter. The output end of the current limiter is connected with the input end of the electromagnetic compatibility filter. The output end of the electromagnetic compatibility filter is connected with the direct current voltage output. The electromagnetic compatibility filter is provided with a feeding end for feeding and transmitting the output voltage to the direct current switch power supply chip. The direct current switch power supply transforming circuit of the utility model leads the equipment to be simplified, improves the operation efficiency, reduces the case volume, reduces the power consumption, and increase the stability of the equipment.

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