Logic Inverters

Thread Starter

caoadon

Joined Jul 11, 2014
24
Can a logic inverter invert a sine wave and/or pulse?
I built a NOT gate and a NAND gate to try this but neither seem to work. (NAND gate with both inputs being 1)

THanks
 

tshuck

Joined Oct 18, 2012
3,534
Can a logic inverter invert a sine wave and/or pulse?
I built a NOT gate and a NAND gate to try this but neither seem to work. (NAND gate with both inputs being 1)

THanks
Nope.

A logic inverter inverts logic values 0->1, 1->0.

If you want to invert a sine wave, build a unity gain, inverting amplifier, or apply a 180° phase shift.
 

shteii01

Joined Feb 19, 2010
4,644
I would think it would work with square pulse, but you need to see what frequency the chip will work with. If the frequency of the pulses is too fast, then the chip will not do the job you want it to do.
 

Thread Starter

caoadon

Joined Jul 11, 2014
24
Nope.

A logic inverter inverts logic values 0->1, 1->0.

If you want to invert a sine wave, build a unity gain, inverting amplifier, or apply a 180° phase shift.
I would think it would work with square pulse, but you need to see what frequency the chip will work with. If the frequency of the pulses is too fast, then the chip will not do the job you want it to do.
I built the logic gates with transistors though
 

MrChips

Joined Oct 2, 2009
30,708
You can use a CMOS inverter biased in the linear region by placing a 1MΩ feedback resistor from the output pin to the input pin.
 
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