[i=s]This post was last edited by dontium on 2015-1-23 12:41[/i] The filter of Class-D audio power amplifier often adopts Butterworth form:It can also be reduced by half:As a speaker, it is equivalent...
Front and back of moduleFront and back of soldering padWhen disassembling the module, it is easy to blow off the module cover if the air gun cannot be used. However, the module cannot be blown off and...
Use a digital tube to display the converted voltage #include "delay.h" #define Num_of_Results 32 static uint results[Num_of_Results]; uchar d[11]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x0...
It was two months ago. I missed the national award by 1 point. I will always remember those sleepless nights. [img]http://blog.21ic.com/uploadfile-/2007-11/1128289881.jpg[/img] [img]http://blog.21ic.c...