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vishal001chavda
modified 8 years ago

CMOS NOR Gate

2
13
82
01:19:09
Its working bt after changing one state.. its not going for next input..plz tell me what is the problem...as i just bought software and new here..
published 8 years ago
2ctiby
8 years ago
Hope this helps... http://everycircuit.com/circuit/4988990812061696
hurz
8 years ago
Just flip top pmos. Then use proper digital input stimuli for proper logic HIGH LOW level. Everything else is fine and does not need to be messed up. http://everycircuit.com/circuit/5490943052742656
2ctiby
8 years ago
Just like I said first before Hurz simply reiterated...but my extra suggestion was to alter the settings too...else if a load is required such an LED here, then Hurz' schematic won't work since his settings are unrealistic. Hurz also assumes that ordinary switches as first shown would not be wanted...and if we ignore that assumption, then my described gate resistors are necessary.
hurz
8 years ago
Logic gates are not made to drive leds. Switches are big, better are digital stimuli. Pulldown are not what CMOS designs are made of. Altering/messing mosfet parameter is for babies only.
hurz
8 years ago
And giving the tip to remove the nmos transistors, proves babies do not know what CMOS is.
2ctiby
8 years ago
Bought mosfets have a gate threshold and Transconductance. (amongst other things, but not to mention everything here). When we use mosfets on EC there is a good chance that they will not meet our expectations in our schematics if we do not adapt these parameters to suit our needs....rather like putting a default lamp in our schematic without considering the setting of V and power. Some users may have it in mind to switch a load only when two other specific switches are both off (eg NOR) without further circuitry. You should not assume that a NOR is always to be used for micro like activity.
2ctiby
8 years ago
And just remember...when it comes to CMOS, you are the master at shoot-through short circuits there...hopefully you learned not to do that after I told you where you were going wrong last year with your laughable cmos circuits.....but then you would never learn from anyone because altering mosfets etc to stop that shoot-through is for babies right?
hurz
8 years ago
Nobody will learn anything from you imposter. What you call "shoot-through short circuit" is a problem which happens only with your stupid mosfet model. This "shoot-through" happens billions of times every milli second in all computer and logic circuits. But only comes to an issue if your nuclear power model is used LOL.
2ctiby
8 years ago
Anyone can look it up, eg... https://www.maximintegrated.com/en/glossary/definitions.mvp/term/Shoot-Through%20Current/gpk/1040
2ctiby
8 years ago
http://m.electronicdesign.com/electromechanical/add-fail-safe-shoot-through-protection-power-mosfet ...just like your efforts which are visible for all to see on EC.
hurz
8 years ago
Are you drunken?
xcvbn
8 years ago
??????
vishal001chavda
8 years ago
U r right.. the shoot and throw problem occurs here.. and it is sorted out....thnks..

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