Direction changer CMOS vs TTL

114

01:32:34

The DC direction changes by one SPST switch(off/on). The left is CMOS(Using MOS-FETs) and the right is TTL(using Bi-Polar Transistors). 

LED                                                                 RESULTS
RED-----POSITIVE(+) DIRECTION                ORANGE(LEFT)-----CMOS VERSION    
BLUE---NEGATIVE(-) DIRECTION               GREEN(RIGHT)------TTL VERSION

CMOS is more efficient and simpler than TTL. 

published 11 years ago

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