Talk:Inverter (logic gate)

message: How is it possible to get a 1 from a 0?  (or High from Low?)
What does it decrease to increase something else?
Could it be used as a voltage (or current) limiter?
Kamocat 23:11, 13 April 2007 (UTC)
replies: text: The inverter has a connection to an external power source (two terminals, +5V and 0V for example). Depending on the input, the inverter will switch the output between being connected to the 0V and being connected to the +5V (loosely speaking). Zener diodes are a way to limit voltage, there might be others. 60.51.30.43 (talk) 00:53, 20 December 2008 (UTC)
thread_title:  How can inverters work? 

message: Book sources leave no doubt what it's more commonly called.  I wouldn't put much stock in any web junk that turns up below.  Dicklyon (talk) 05:28, 17 April 2012 (UTC)
replies: text: From one of those sources: "In electronics a NOT gate is more commonly called an inverter."  "In electronics".  That book is about computer science, so it makes that note and then continues on calling it a NOT gate throughout the rest of the book.  Your background in electronics is coloring your perception of which term is dominant.  Powers T 17:25, 17 April 2012 (UTC)
replies: text: That CS book only mentions gates in the context of circuits, so I wouldn't infer that they're much called anything different in another field.  I looked at some others with "computer science" in the title, and there's no consistency; one even calls it a "NEGATION gate".  I guess they feel free to call it whatever they like if they're not familiar with where it's used (in electroncis, mostly).  Dicklyon (talk) 22:11, 17 April 2012 (UTC)
replies: text: Right, so the sources all support you, and any that don't must be unfamiliar with electronics.  Nice little tautology you have there.  I say again: your experience with electronics is coloring your perception of what term is more common.  There are other domains of knowledge involved here and you have refused to acknowledge them as pertinent.  Powers T 22:42, 19 April 2012 (UTC)

text: That's the first time anyone has mentioned potential confusion.  Is there a basis for your expectation of confusion?  And what title guidelines does this relate to?  Recognizability?  Dicklyon (talk) 06:10, 18 April 2012 (UTC)
replies: text: What is this class of "other readers" that are confused? The reader searching inverter ends up at Power inverter a ridiculous result as this is a minor usage and unlikely to be what is sought. Instead they should end up at Inverter (disambiguation) or Inverter (logic gate). Brews ohare (talk) 14:20, 18 April 2012 (UTC)
replies: text:  I poked around; the redirect issue is more significant. On April 15, JHunterJ closed this requested move] with an eye toward the discussion on this page. We should consider how to handle Inverter. Glrx (talk) 17:07, 18 April 2012 (UTC)
thread_title: No doubt

message: Where "Inverter" is used, but "NOT gate" is not.
* 
Sedra/Smith, the classic textbook, calls it a "digital logic inverter". Kauffner (talk) 00:19, 18 April 2012 (UTC)
thread_title: Inverter

message: Inverters are the smallest digital building block, but they are not the only digital building block. I changed the text since the way it was written, readers could interpret that all digital circuits coud be built using just inverters (NOT gates), and that is not the case.--Crystallizedcarbon (talk) 06:46, 5 September 2014 (UTC)
replies: text: I made further edits. Latches are not just crossed inverters but require gating (and then there's that pesky tunnel diode). The section is trying to say something more general, but it misses the mark. Simple combination functions can be made in a depth of three: NOT/AND/OR. Material from the following section (universality) could be moved up. Glrx (talk) 15:53, 7 September 2014 (UTC)
replies: text:  Hello ; It's true, the latch needs two more transistors to the +/- data lines to be able to read or overwrite its value, but its heart is the looped inverters. Having said that, including that information in the paragraph even if it is correct, does not necessarily add value to the article, so I agree with your edit. I think it is easier to read and understand after your last edit. I also agree with your suggestion, to mention the other two basic building blocks AND/OR and then moving up the NAND, NOR universality. If there are no arguments against it, I think we should do it. --Crystallizedcarbon (talk) 19:01, 7 September 2014 (UTC)
thread_title:  Smallest digital building block. 

message: I can't be the only one who's a bit confused that the symbol used for transistors in the diagrams here doesn't match any of the ones in the transistor entry. I find the diagrams quite hard to follow, probably as a consequence. --Oolong (talk) 21:19, 11 February 2016 (UTC)
thread_title:  Diagrams & Symbols 

message: I was redirected here from "4049" 
The high speed CMOS 4049 is commonly used as a general purpose buffer to amplify the current in a logic signal.  That way a logic output can drive more gate inputs or an external power mosfet gate while maintaining sharp square wave state transistions.  One gate in a 4049 can drive the inputs of at least three 4049 gates for more power and two inverter stages in a row then acts as a non-inverting buffer.  
Thought I should mention this... that the 4049 is a buffer as well as a logic gate.   Enough in parallel can charge/discharge cycle the capacitance of both P and N channel power mosfet gates at high frequencies for PWM switching applications etc. Fencelizard (talk) 23:19, 1 February 2017 (UTC)
replies: text: Hello, If you can find a reliable source to reference the information you can add it to the article along with the source. --Crystallizedcarbon (talk) 08:33, 2 February 2017 (UTC)
thread_title:  4049 is a hex inverter/buffer