[i=s]This post was last edited by jameswangsynnex on 2015-3-3 19:59[/i]Parameter table of 600 commonly used transistorsSoftware name: 600 common transistor parameter tablesLicense: SharewareSoftware T
I used 555 to make a square wave, the target is 38kHz, PS; mark space ratio=55:45. It is used to imitate infrared. There is another set of data, 2kHz . I followed his datasheet. I used C=10nF, Ra=380,