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0

I recomend looking into CIRCAD. Seems to work for what you are looking for http://www.holophase.com/index.html Its a little clunky but it does push from PCB to scheamtic side with out too much issue.


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To clear the selection of the Find Similar Objects use the SHIFT + C hotkey. After performing the edit, you will probably find that all the other objects on the schematic are faded out, or masked. While something is masked it cannot be edited, to remove the mask click the Clear button at the bottom right of the workspace [shortcut: SHIFT + C]. Page ...


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In IEC-land (Europe and the Commonwealth), two overlapping circles usually means an (AC) transformer. From Australian Standard AS 1102.106 Graphical symbols for electrotechnical documentation - Part 106: Production and conversion of electrical energy: Where the transformer is a three-phase type, there are often some extra qualifying symbols added which ...


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TX_LED_N and TX_LED_P nets' naming convention says they are differential. It might be a instruction to the layout designer to route the lines strictly length matched tracks on PCB. It might also depend on the tool, the tool might automatically support pairing of differential signals and indicate the same via the symbol posted in OP.


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I'm assuming you're talking about Cadence Allegro, or Orcad. Cadence has many other products used in VLSI and ASIC design that use different file conventions. Back to your question, it might be a proprietary binary file, so it might not be possible to read that information unless you reverse engineer the database structure. For example, the old Cadence ...


2

That quote is just wrong. That circuit is correct, but not for your application as it will require about 8V minimum input to give 6V at the output. It works by supplementing the output current of the 78xx (7806 for 6V) regulator if the regulator takes significant current (about 600mA) with additional current through the PNP transistor. Your Lipo batteries ...


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I don't know if this TexasInstruments application note would fit your bill, but it contains some schematics and reference for AS logic, like these excerpts: Another possibly useful resource is this older application note on AS and ALS logic.


3

If you want a sharp cutoff, then you'll need a different circuit. All transistors have a linear region, which means that you'll get the dimmer effect no matter what you do or how many transistors you use. All you can do is reduce the dimmer effect, but not eliminate it. To get a hard cutoff instead, you want as close to infinite gain as you can get, so ...


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NOTE: It is long. But when you're done, you'll know a lot more to design more, even cooler schematics than you imagined possible. I have included some Breaks where you could stop, go to bed or have a drink and decide later whether you feel you need to learn more. First, I'm going to go with an NPN transistor, because: You say you're happy to flip some ...


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Solution without the zener (as suggested above): 2 Common emitters in series give more than enough gain so the transition voltage from LED off-on will be extremely small. Oldfashioned fun with transistors, look, no microcontroller needed :-)


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The best design practice is to connect all of the sequential logic in a specific partition of your design to a common clock. Then use combinatorial logic to interconnect all of the state flip-flops using clock enables, the D inputs and the J/K inputs of the flops. No logic gating of the clock should be needed.



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