[問題] 判斷最小電壓
我有四個輸入電壓分別為:
A = 0.3V
B = 0.2V
C = 0.5V
D = 0.4V
請問有什麼電路可以判斷出 B 為這四個電壓當中的最小電壓值?
(無論是 paper上、書上的範例或是各位的好點子,都歡迎提供想法給我~)
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