The attachment is relatively large, upload it to Baidu Netdisk. Link: https://pan.baidu.com/s/1LXW_bbj3xP0HLNv-KcYGyg https://pan.baidu.com/s/1LXW_bbj3xP0HLNv-KcYGyg Extraction code: yn1b b [/b] [/b]
As the title says, the ACDC switching power supply outputs 5V voltage through LDO. How to filter it next?Below is the schematic diagram I used and the waveform collected by the oscilloscope.
Resources used in practice
4 rectifier diodes, 500R resistor (as load), oscilloscope, signal source
Note: The resistance value does not need to be accurate. This resistor is used as a load. The resist