兩個電晶體可組合成單穩態 RS 振盪器,
稍加變型成不穩態振盪器(用在 Apple II 的時鐘 14.318 震盪).
NAND/NOR RS正反器加上一些閘之後組成 JK- ff, D-ff, T-ff,
其實為基礎中之基礎電路,
運用之妙可以大幅精簡電路.
如下電路示範 RS 正反器經由 RC 電路轉變成 T 型正反器電路.
220V AC Lamp Toggle Switch Circuit
R1 = 470R
R2 = 10K
R3 = 100K
R4 = 100K
R5 = 1K
C1 = 330nF-400V
C2 = 100uF-25V
C3 = 100nF-63V
C4 = 10uF-25V
D1 = 1N4007
D2 = 1N4007
D3 = BZX79C12
D4 = TIC206M
IC1 = 4011 NAND Gate
來源: http://www.hobby-circuits.com/ci ... ggle-switch-circuit
附加檔案 Latch and Toggle Power Circuits 有興趣者參考
Push Button ON-OFF Soft Latch Circuits, Battery Powered Touch Toggle ON OFF Swit.pdf
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發表於 2021-11-23 12:41:35